Example usage for java.lang.reflect Field getModifiers

Introduction

In this page you can find the example usage for java.lang.reflect Field getModifiers.

Prototype

public int getModifiers() 

Source Link

Document

Returns the Java language modifiers for the field represented by this Field object, as an integer.

Usage

From source file:org.apache.hadoop.hbase.HBaseTestingUtility.java

/**
 * Tasktracker has a bug where changing the hadoop.log.dir system property
 * will not change its internal static LOG_DIR variable.
 *//*from ww  w . jav a 2 s.co m*/
private void forceChangeTaskLogDir() {
    Field logDirField;
    try {
        logDirField = TaskLog.class.getDeclaredField("LOG_DIR");
        logDirField.setAccessible(true);

        Field modifiersField = Field.class.getDeclaredField("modifiers");
        modifiersField.setAccessible(true);
        modifiersField.setInt(logDirField, logDirField.getModifiers() & ~Modifier.FINAL);

        logDirField.set(null, new File(hadoopLogDir, "userlogs"));
    } catch (SecurityException e) {
        throw new RuntimeException(e);
    } catch (NoSuchFieldException e) {
        // TODO Auto-generated catch block
        throw new RuntimeException(e);
    } catch (IllegalArgumentException e) {
        throw new RuntimeException(e);
    } catch (IllegalAccessException e) {
        throw new RuntimeException(e);
    }
}

---

From source file:org.apache.openjpa.enhance.PCEnhancer.java

private ArrayList<Integer> optimizeIdCopy(Class<?> oidType, FieldMetaData[] fmds) {
    // collect all object id fields and verify they 
    // a) have a private field
    // b) do not have a public setter 
    ArrayList<Integer> pkFields = new ArrayList<Integer>();
    // build list of primary key fields
    for (int i = 0; i < fmds.length; i++) {
        if (!fmds[i].isPrimaryKey())
            continue;
        // optimizing copy with PC type not (yet) supported
        if (fmds[i].getDeclaredTypeCode() == JavaTypes.PC) {
            return null;
        }// ww  w  . ja v a2  s . c  om
        String name = fmds[i].getName();
        Field fld = Reflection.findField(oidType, name, false);
        if (fld == null || Modifier.isPublic(fld.getModifiers())) {
            return null;
        }
        Method setter = Reflection.findSetter(oidType, name, false);
        if (setter == null || !Modifier.isPublic(setter.getModifiers())) {
            pkFields.add(i);
        } else {
            return null;
        }
    }
    return pkFields.size() > 0 ? pkFields : null;
}

---

From source file:com.github.wshackle.java4cpp.J4CppMain.java

public static void main(String[] args) throws IOException, ClassNotFoundException {
    main_completed = false;/* w w w  .j  a  va2 s .c  om*/

    Options options = new Options();
    options.addOption(Option.builder("?").desc("Print this message").longOpt("help").build());
    options.addOption(Option.builder("n").hasArg().desc("C++ namespace for newly generated classes.")
            .longOpt("namespace").build());
    options.addOption(
            Option.builder("c").hasArgs().desc("Single Java class to extract.").longOpt("classes").build());
    options.addOption(
            Option.builder("p").hasArgs().desc("Java Package prefix to extract").longOpt("packages").build());
    options.addOption(Option.builder("o").hasArg().desc("Output C++ source file.").longOpt("output").build());
    options.addOption(Option.builder("j").hasArg().desc("Input jar file").longOpt("jar").build());
    options.addOption(Option.builder("h").hasArg().desc("Output C++ header file.").longOpt("header").build());
    options.addOption(Option.builder("l").hasArg()
            .desc("Maximum limit on classes to extract from jars.[default=200]").longOpt("limit").build());
    options.addOption(Option.builder("v").desc("enable verbose output").longOpt("verbose").build());
    options.addOption(Option.builder().hasArg().desc("Classes per output file.[default=10]")
            .longOpt(CLASSESPEROUTPUT).build());
    options.addOption(Option.builder().hasArgs().desc(
            "Comma seperated list of nativeclass=javaclass native where nativeclass will be generated as an extension/implementation of the java class.")
            .longOpt("natives").build());
    options.addOption(Option.builder().hasArg()
            .desc("library name for System.loadLibrary(...) for native extension classes")
            .longOpt("loadlibname").build());
    String output = null;
    String header = null;
    String jar = null;
    Set<String> classnamesToFind = null;
    Set<String> packageprefixes = null;
    String loadlibname = null;

    Map<String, String> nativesNameMap = null;
    Map<String, Class> nativesClassMap = null;
    int limit = DEFAULT_LIMIT;
    int classes_per_file = 10;
    List<Class> classes = new ArrayList<>();

    String limitstring = Integer.toString(limit);

    try {
        // parse the command line arguments
        System.out.println("args = " + Arrays.toString(args));
        CommandLine line = new DefaultParser().parse(options, args);
        loadlibname = line.getOptionValue("loadlibname");
        verbose = line.hasOption("verbose");
        if (line.hasOption(CLASSESPEROUTPUT)) {
            String cpoStr = line.getOptionValue(CLASSESPEROUTPUT);
            try {
                int cpoI = Integer.valueOf(cpoStr);
                classes_per_file = cpoI;
            } catch (Exception e) {
                System.err.println("Option for " + CLASSESPEROUTPUT + "=\"" + cpoStr + "\"");
                printHelpAndExit(options, args);
            }
        }

        if (line.hasOption("natives")) {
            String natives[] = line.getOptionValues("natives");
            if (verbose) {
                System.out.println("natives = " + Arrays.toString(natives));
            }
            nativesNameMap = new HashMap<>();
            nativesClassMap = new HashMap<>();
            for (int i = 0; i < natives.length; i++) {
                int eq_index = natives[i].indexOf('=');
                String nativeClassName = natives[i].substring(0, eq_index).trim();
                String javaClassName = natives[i].substring(eq_index + 1).trim();
                Class javaClass = null;
                try {
                    javaClass = Class.forName(javaClassName);
                } catch (ClassNotFoundException e) {
                    //e.printStackTrace();
                    System.err.println("Class for " + javaClassName
                            + " not found. (It may be found later in jar if specified.)");
                }
                nativesNameMap.put(javaClassName, nativeClassName);
                if (javaClass != null) {
                    nativesClassMap.put(nativeClassName, javaClass);
                    if (!classes.contains(javaClass)) {
                        classes.add(javaClass);
                    }
                }
            }
        }
        //            // validate that block-size has been set
        //            if (line.hasOption("block-size")) {
        //                // print the value of block-size
        //                if(verbose) System.out.println(line.getOptionValue("block-size"));
        //            }
        jar = line.getOptionValue("jar", jar);
        if (verbose) {
            System.out.println("jar = " + jar);
        }
        if (null != jar) {
            if (jar.startsWith("~/")) {
                jar = new File(new File(getHomeDir()), jar.substring(2)).getCanonicalPath();
            }
            if (jar.startsWith("./")) {
                jar = new File(new File(getCurrentDir()), jar.substring(2)).getCanonicalPath();
            }
            if (jar.startsWith("../")) {
                jar = new File(new File(getCurrentDir()).getParentFile(), jar.substring(3)).getCanonicalPath();
            }
        }
        if (line.hasOption("classes")) {
            classnamesToFind = new HashSet<String>();
            String classStrings[] = line.getOptionValues("classes");
            if (verbose) {
                System.out.println("classStrings = " + Arrays.toString(classStrings));
            }
            classnamesToFind.addAll(Arrays.asList(classStrings));
            if (verbose) {
                System.out.println("classnamesToFind = " + classnamesToFind);
            }
        }
        //                if (!line.hasOption("namespace")) {
        //                    if (classname != null && classname.length() > 0) {
        //                        namespace = classname.toLowerCase().replace(".", "_");
        //                    } else if (jar != null && jar.length() > 0) {
        //                        int lastSep = jar.lastIndexOf(File.separator);
        //                        int start = Math.max(0, lastSep + 1);
        //                        int period = jar.indexOf('.', start + 1);
        //                        int end = Math.max(start + 1, period);
        //                        namespace = jar.substring(start, end).toLowerCase();
        //                        namespace = namespace.replace(" ", "_");
        //                        if (namespace.indexOf("-") > 0) {
        //                            namespace = namespace.substring(0, namespace.indexOf("-"));
        //                        }
        //                    }
        //                }

        namespace = line.getOptionValue("namespace", namespace);
        if (verbose) {
            System.out.println("namespace = " + namespace);
        }
        if (null != namespace) {
            output = namespace + ".cpp";
        }
        output = line.getOptionValue("output", output);
        if (verbose) {
            System.out.println("output = " + output);
        }
        if (null != output) {
            if (output.startsWith("~/")) {
                output = System.getProperty("user.home") + output.substring(1);
            }
            header = output.substring(0, output.lastIndexOf('.')) + ".h";
        } else {
            output = "out.cpp";
        }
        header = line.getOptionValue("header", header);
        if (verbose) {
            System.out.println("header = " + header);
        }
        if (null != header) {
            if (header.startsWith("~/")) {
                header = System.getProperty("user.home") + header.substring(1);
            }
        } else {
            header = "out.h";
        }

        if (line.hasOption("packages")) {
            packageprefixes = new HashSet<String>();
            packageprefixes.addAll(Arrays.asList(line.getOptionValues("packages")));
        }
        if (line.hasOption("limit")) {
            limitstring = line.getOptionValue("limit", Integer.toString(DEFAULT_LIMIT));
            limit = Integer.valueOf(limitstring);
        }
        if (line.hasOption("help")) {
            printHelpAndExit(options, args);
        }
    } catch (ParseException exp) {
        if (verbose) {
            System.out.println("Unexpected exception:" + exp.getMessage());
        }
        printHelpAndExit(options, args);
    }

    Set<Class> excludedClasses = new HashSet<>();
    Set<String> foundClassNames = new HashSet<>();
    excludedClasses.add(Object.class);
    excludedClasses.add(String.class);
    excludedClasses.add(void.class);
    excludedClasses.add(Void.class);
    excludedClasses.add(Class.class);
    excludedClasses.add(Enum.class);
    Set<String> packagesSet = new TreeSet<>();
    List<URL> urlsList = new ArrayList<>();
    String cp = System.getProperty("java.class.path");
    if (verbose) {
        System.out.println("System.getProperty(\"java.class.path\") = " + cp);
    }
    if (null != cp) {
        for (String cpe : cp.split(File.pathSeparator)) {
            if (verbose) {
                System.out.println("class path element = " + cpe);
            }
            File f = new File(cpe);
            if (f.isDirectory()) {
                urlsList.add(new URL("file:" + f.getCanonicalPath() + File.separator));
            } else if (cpe.endsWith(".jar")) {
                urlsList.add(new URL("jar:file:" + f.getCanonicalPath() + "!/"));
            }
        }
    }
    cp = System.getenv("CLASSPATH");
    if (verbose) {
        System.out.println("System.getenv(\"CLASSPATH\") = " + cp);
    }
    if (null != cp) {
        for (String cpe : cp.split(File.pathSeparator)) {
            if (verbose) {
                System.out.println("class path element = " + cpe);
            }
            File f = new File(cpe);
            if (f.isDirectory()) {
                urlsList.add(new URL("file:" + f.getCanonicalPath() + File.separator));
            } else if (cpe.endsWith(".jar")) {
                urlsList.add(new URL("jar:file:" + f.getCanonicalPath() + "!/"));
            }
        }
    }
    if (verbose) {
        System.out.println("urlsList = " + urlsList);
    }

    if (null != jar && jar.length() > 0) {
        Path jarPath = FileSystems.getDefault().getPath(jar);
        ZipInputStream zip = new ZipInputStream(Files.newInputStream(jarPath, StandardOpenOption.READ));

        URL jarUrl = new URL("jar:file:" + jarPath.toFile().getCanonicalPath() + "!/");
        urlsList.add(jarUrl);
        URL[] urls = urlsList.toArray(new URL[urlsList.size()]);
        if (verbose) {
            System.out.println("urls = " + Arrays.toString(urls));
        }
        URLClassLoader cl = URLClassLoader.newInstance(urls);
        for (ZipEntry entry = zip.getNextEntry(); entry != null; entry = zip.getNextEntry()) {
            // This ZipEntry represents a class. Now, what class does it represent?
            String entryName = entry.getName();
            if (verbose) {
                System.out.println("entryName = " + entryName);
            }

            if (!entry.isDirectory() && entryName.endsWith(".class")) {

                if (entryName.indexOf('$') >= 0) {
                    continue;
                }
                String classFileName = entry.getName().replace('/', '.');
                String className = classFileName.substring(0, classFileName.length() - ".class".length());
                if (classnamesToFind != null && classnamesToFind.size() > 0
                        && !classnamesToFind.contains(className)) {
                    if (verbose) {
                        System.out.println("skipping className=" + className + " because it does not found in="
                                + classnamesToFind);
                    }
                    continue;
                }
                try {
                    Class clss = cl.loadClass(className);
                    if (null != nativesClassMap && null != nativesNameMap
                            && nativesNameMap.containsKey(className)) {
                        nativesClassMap.put(nativesNameMap.get(className), clss);
                        if (!classes.contains(clss)) {
                            classes.add(clss);
                        }
                    }
                    if (packageprefixes != null && packageprefixes.size() > 0) {
                        if (null == clss.getPackage()) {
                            continue;
                        }
                        final String pkgName = clss.getPackage().getName();
                        boolean matchFound = false;
                        for (String prefix : packageprefixes) {
                            if (pkgName.startsWith(prefix)) {
                                matchFound = true;
                                break;
                            }
                        }
                        if (!matchFound) {
                            continue;
                        }
                    }
                    Package p = clss.getPackage();
                    if (null != p) {
                        packagesSet.add(clss.getPackage().getName());
                    }
                    if (!classes.contains(clss) && isAddableClass(clss, excludedClasses)) {
                        if (null != classnamesToFind && classnamesToFind.contains(className)
                                && !foundClassNames.contains(className)) {
                            foundClassNames.add(className);
                            if (verbose) {
                                System.out.println("foundClassNames = " + foundClassNames);
                            }
                        }
                        //                        if(verbose) System.out.println("clss = " + clss);
                        classes.add(clss);
                        //                        Class superClass = clss.getSuperclass();
                        //                        while (null != superClass
                        //                                && !classes.contains(superClass)
                        //                                && isAddableClass(superClass, excludedClasses)) {
                        //                            classes.add(superClass);
                        //                            superClass = superClass.getSuperclass();
                        //                        }
                    }
                } catch (ClassNotFoundException | NoClassDefFoundError ex) {
                    System.err.println(
                            "Caught " + ex.getClass().getName() + ":" + ex.getMessage() + " for className="
                                    + className + ", entryName=" + entryName + ", jarPath=" + jarPath);
                }
            }
        }
    }
    if (null != classnamesToFind) {
        if (verbose) {
            System.out.println("Checking classnames arguments");
        }
        for (String classname : classnamesToFind) {
            if (verbose) {
                System.out.println("classname = " + classname);
            }
            if (foundClassNames.contains(classname)) {
                if (verbose) {
                    System.out.println("foundClassNames.contains(" + classname + ")");
                }
                continue;
            }
            try {
                if (classes.contains(Class.forName(classname))) {
                    if (verbose) {
                        System.out.println("Classes list already contains:  " + classname);
                    }
                    continue;
                }
            } catch (Exception e) {

            }

            if (null != classname && classname.length() > 0) {
                urlsList.add(new URL("file://" + System.getProperty("user.dir") + "/"));

                URL[] urls = urlsList.toArray(new URL[urlsList.size()]);
                if (verbose) {
                    System.out.println("urls = " + Arrays.toString(urls));
                }
                URLClassLoader cl = URLClassLoader.newInstance(urls);
                Class c = null;
                try {
                    c = cl.loadClass(classname);
                } catch (ClassNotFoundException e) {
                    System.err.println("Class " + classname + " not found ");
                }
                if (verbose) {
                    System.out.println("c = " + c);
                }
                if (null == c) {
                    try {
                        c = ClassLoader.getSystemClassLoader().loadClass(classname);
                    } catch (ClassNotFoundException e) {
                        if (verbose) {
                            System.out.println("System ClassLoader failed to find " + classname);
                        }
                    }
                }
                if (null != c) {
                    classes.add(c);
                } else {
                    System.err.println("Class " + classname + " not found");
                }
            }
        }
        if (verbose) {
            System.out.println("Finished checking classnames arguments");
        }
    }
    if (classes == null || classes.size() < 1) {
        if (null == nativesClassMap || nativesClassMap.keySet().size() < 1) {
            System.err.println("No Classes specified or found.");
            System.exit(1);
        }
    }
    if (verbose) {
        System.out.println("Classes found = " + classes.size());
    }
    if (classes.size() > limit) {
        System.err.println("limit=" + limit);
        System.err.println(
                "Too many classes please use -c or -p options to limit classes or -l to increase limit.");
        if (verbose) {
            System.out.println("packagesSet = " + packagesSet);
        }
        System.exit(1);
    }
    List<Class> newClasses = new ArrayList<Class>();
    for (Class clss : classes) {
        Class superClass = clss.getSuperclass();
        while (null != superClass && !classes.contains(superClass) && !newClasses.contains(superClass)
                && isAddableClass(superClass, excludedClasses)) {
            newClasses.add(superClass);
            superClass = superClass.getSuperclass();
        }
        try {
            Field fa[] = clss.getDeclaredFields();
            for (Field f : fa) {
                if (Modifier.isPublic(f.getModifiers())) {
                    Class fClass = f.getType();
                    if (!classes.contains(fClass) && !newClasses.contains(fClass)
                            && isAddableClass(fClass, excludedClasses)) {
                        newClasses.add(fClass);
                    }
                }
            }
        } catch (NoClassDefFoundError e) {
            e.printStackTrace();
        }
        for (Method m : clss.getDeclaredMethods()) {
            if (m.isSynthetic()) {
                continue;
            }
            if (!Modifier.isPublic(m.getModifiers()) || Modifier.isAbstract(m.getModifiers())) {
                continue;
            }
            Class retType = m.getReturnType();
            if (verbose) {
                System.out.println("Checking dependancies for Method = " + m);
            }
            if (!classes.contains(retType) && !newClasses.contains(retType)
                    && isAddableClass(retType, excludedClasses)) {
                newClasses.add(retType);
                superClass = retType.getSuperclass();
                while (null != superClass && !classes.contains(superClass) && !newClasses.contains(superClass)
                        && isAddableClass(superClass, excludedClasses)) {
                    newClasses.add(superClass);
                    superClass = superClass.getSuperclass();
                }
            }
            for (Class paramType : m.getParameterTypes()) {
                if (!classes.contains(paramType) && !newClasses.contains(paramType)
                        && isAddableClass(paramType, excludedClasses)) {
                    newClasses.add(paramType);
                    superClass = paramType.getSuperclass();
                    while (null != superClass && !classes.contains(superClass)
                            && !newClasses.contains(superClass) && !excludedClasses.contains(superClass)) {
                        newClasses.add(superClass);
                        superClass = superClass.getSuperclass();
                    }
                }
            }
        }
    }
    if (null != nativesClassMap) {
        for (Class clss : nativesClassMap.values()) {
            if (null != clss) {
                Class superClass = clss.getSuperclass();
                while (null != superClass && !classes.contains(superClass) && !newClasses.contains(superClass)
                        && !excludedClasses.contains(superClass)) {
                    newClasses.add(superClass);
                    superClass = superClass.getSuperclass();
                }
            }
        }
    }
    if (verbose) {
        System.out.println("Dependency classes needed = " + newClasses.size());
    }
    classes.addAll(newClasses);
    List<Class> newOrderClasses = new ArrayList<>();
    for (Class clss : classes) {
        if (newOrderClasses.contains(clss)) {
            continue;
        }
        Class superClass = clss.getSuperclass();
        Stack<Class> stack = new Stack<>();
        while (null != superClass && !newOrderClasses.contains(superClass)
                && !superClass.equals(java.lang.Object.class)) {
            stack.push(superClass);
            superClass = superClass.getSuperclass();
        }
        while (!stack.empty()) {
            newOrderClasses.add(stack.pop());
        }
        newOrderClasses.add(clss);
    }
    classes = newOrderClasses;
    if (verbose) {
        System.out.println("Total number of classes = " + classes.size());
        System.out.println("classes = " + classes);
    }

    String forward_header = header.substring(0, header.lastIndexOf('.')) + "_fwd.h";
    Map<String, String> map = new HashMap<>();
    map.put(JAR, jar != null ? jar : "");
    map.put("%CLASSPATH_PREFIX%",
            getCurrentDir() + ((jar != null)
                    ? (File.pathSeparator + ((new File(jar).getCanonicalPath()).replace("\\", "\\\\")))
                    : ""));
    map.put("%FORWARD_HEADER%", forward_header);
    map.put("%HEADER%", header);
    map.put("%PATH_SEPERATOR%", File.pathSeparator);
    String tabs = "";
    String headerDefine = forward_header.substring(Math.max(0, forward_header.indexOf(File.separator)))
            .replace(".", "_");
    map.put(HEADER_DEFINE, headerDefine);
    map.put(NAMESPACE, namespace);
    if (null != nativesClassMap) {
        for (Entry<String, Class> e : nativesClassMap.entrySet()) {
            final Class javaClass = e.getValue();
            final String nativeClassName = e.getKey();
            try (PrintWriter pw = new PrintWriter(new FileWriter(nativeClassName + ".java"))) {
                if (javaClass.isInterface()) {
                    pw.println("public class " + nativeClassName + " implements " + javaClass.getCanonicalName()
                            + ", AutoCloseable{");
                } else {
                    pw.println("public class " + nativeClassName + " extends " + javaClass.getCanonicalName()
                            + " implements AutoCloseable{");
                }
                if (null != loadlibname && loadlibname.length() > 0) {
                    pw.println(TAB_STRING + "static {");
                    pw.println(TAB_STRING + TAB_STRING + "System.loadLibrary(\"" + loadlibname + "\");");
                    pw.println(TAB_STRING + "}");
                    pw.println();
                }
                pw.println(TAB_STRING + "public " + nativeClassName + "() {");
                pw.println(TAB_STRING + "}");
                pw.println();
                pw.println(TAB_STRING + "private long nativeAddress=0;");
                pw.println(TAB_STRING + "private boolean nativeDeleteOnClose=false;");
                pw.println();

                pw.println(TAB_STRING + "protected " + nativeClassName + "(final long nativeAddress) {");
                pw.println(TAB_STRING + TAB_STRING + "this.nativeAddress = nativeAddress;");
                pw.println(TAB_STRING + "}");

                pw.println(TAB_STRING + "private native void nativeDelete();");
                pw.println();
                pw.println(TAB_STRING + "@Override");
                pw.println(TAB_STRING + "public synchronized void  close() {");
                //                        pw.println(TAB_STRING + TAB_STRING + "if(nativeAddress != 0 && nativeDeleteOnClose) {");
                pw.println(TAB_STRING + TAB_STRING + "nativeDelete();");
                //                        pw.println(TAB_STRING + TAB_STRING + "}");
                //                        pw.println(TAB_STRING + TAB_STRING + "nativeAddress=0;");
                //                        pw.println(TAB_STRING + TAB_STRING + "nativeDeleteOnClose=false;");
                pw.println(TAB_STRING + "}");

                pw.println();
                pw.println(TAB_STRING + "protected void finalizer() {");
                pw.println(TAB_STRING + TAB_STRING + "close();");
                pw.println(TAB_STRING + "}");

                pw.println();
                Method ma[] = javaClass.getDeclaredMethods();
                for (Method m : ma) {
                    int modifiers = m.getModifiers();
                    if (Modifier.isAbstract(modifiers) && Modifier.isPublic(modifiers)
                            && !Modifier.isStatic(modifiers)
                            //                                && !m.isDefault()
                            && !m.isSynthetic()) {
                        pw.println();
                        pw.println(TAB_STRING + "@Override");
                        String params = "";
                        for (int i = 0; i < m.getParameterTypes().length; i++) {
                            params += m.getParameterTypes()[i].getCanonicalName() + " param" + i;
                            if (i < m.getParameterTypes().length - 1) {
                                params += ",";
                            }
                        }
                        pw.println(TAB_STRING + "native public " + m.getReturnType().getCanonicalName() + " "
                                + m.getName() + "(" + params + ");");
                        //                                    + IntStream.range(0, m.getParameterTypes().length)
                        //                                    .mapToObj(i -> m.getParameterTypes()[i].getCanonicalName() + " param" + i)
                        //                                    .collect(Collectors.joining(",")) + ");");
                    }
                }
                pw.println("}");
            }
        }
    }
    try (PrintWriter pw = new PrintWriter(new FileWriter(forward_header))) {
        tabs = "";
        processTemplate(pw, map, "header_fwd_template_start.h", tabs);
        Class lastClass = null;
        for (int class_index = 0; class_index < classes.size(); class_index++) {
            Class clss = classes.get(class_index);
            String clssOnlyName = getCppClassName(clss);
            tabs = openClassNamespace(clss, pw, tabs, lastClass);
            tabs += TAB_STRING;
            pw.println(tabs + "class " + clssOnlyName + ";");
            tabs = tabs.substring(0, tabs.length() - 1);
            Class nextClass = (class_index < (classes.size() - 1)) ? classes.get(class_index + 1) : null;
            tabs = closeClassNamespace(clss, pw, tabs, nextClass);
            lastClass = clss;
        }
        processTemplate(pw, map, "header_fwd_template_end.h", tabs);
    }
    headerDefine = header.substring(Math.max(0, header.indexOf(File.separator))).replace(".", "_");
    map.put(HEADER_DEFINE, headerDefine);
    map.put(NAMESPACE, namespace);
    if (classes_per_file < 1) {
        classes_per_file = classes.size();
    }
    final int num_class_segments = (classes.size() > 1)
            ? ((classes.size() + classes_per_file - 1) / classes_per_file)
            : 1;
    String fmt = "%d";
    if (num_class_segments > 10) {
        fmt = "%02d";
    }
    if (num_class_segments > 100) {
        fmt = "%03d";
    }
    String header_file_base = header;
    if (header_file_base.endsWith(".h")) {
        header_file_base = header_file_base.substring(0, header_file_base.length() - 2);
    } else if (header_file_base.endsWith(".hh")) {
        header_file_base = header_file_base.substring(0, header_file_base.length() - 3);
    } else if (header_file_base.endsWith(".hpp")) {
        header_file_base = header_file_base.substring(0, header_file_base.length() - 4);
    }
    try (PrintWriter pw = new PrintWriter(new FileWriter(header))) {
        tabs = "";
        processTemplate(pw, map, HEADER_TEMPLATE_STARTH, tabs);
        for (int segment_index = 0; segment_index < num_class_segments; segment_index++) {
            String header_segment_file = header_file_base + String.format(fmt, segment_index) + ".h";
            pw.println("#include \"" + header_segment_file + "\"");
        }
        if (null != nativesClassMap) {
            tabs = TAB_STRING;
            for (Entry<String, Class> e : nativesClassMap.entrySet()) {
                final Class javaClass = e.getValue();
                final String nativeClassName = e.getKey();
                pw.println();
                pw.println(tabs + "class " + nativeClassName + "Context;");
                pw.println();
                map.put(CLASS_NAME, nativeClassName);
                map.put("%BASE_CLASS_FULL_NAME%",
                        "::" + namespace + "::" + getModifiedClassName(javaClass).replace(".", "::"));
                map.put(OBJECT_CLASS_FULL_NAME, "::" + namespace + "::java::lang::Object");
                processTemplate(pw, map, HEADER_CLASS_STARTH, tabs);
                tabs += TAB_STRING;
                pw.println(tabs + nativeClassName + "Context *context;");
                pw.println(tabs + nativeClassName + "();");
                pw.println(tabs + "~" + nativeClassName + "();");
                Method methods[] = javaClass.getDeclaredMethods();
                for (int j = 0; j < methods.length; j++) {
                    Method method = methods[j];
                    int modifiers = method.getModifiers();
                    if (!Modifier.isPublic(modifiers)) {
                        continue;
                    }
                    if (Modifier.isAbstract(modifiers) && Modifier.isPublic(modifiers)
                            && !Modifier.isStatic(modifiers)
                            //                                && !method.isDefault()
                            && !method.isSynthetic()) {
                        pw.println(tabs + getNativeMethodCppDeclaration(method, javaClass));
                    }
                }
                pw.println(tabs + "void initContext(" + nativeClassName + "Context *ctx,bool isref);");
                pw.println(tabs + "void deleteContext();");
                tabs = tabs.substring(TAB_STRING.length());
                pw.println(tabs + "}; // end class " + nativeClassName);
            }
        }
        tabs = "";
        processTemplate(pw, map, HEADER_TEMPLATE_ENDH, tabs);
    }
    for (int segment_index = 0; segment_index < num_class_segments; segment_index++) {
        String header_segment_file = header_file_base + String.format(fmt, segment_index) + ".h";
        try (PrintWriter pw = new PrintWriter(new FileWriter(header_segment_file))) {
            tabs = "";
            //processTemplate(pw, map, HEADER_TEMPLATE_STARTH, tabs);
            pw.println("// Never include this file (" + header_segment_file + ") directly. include " + header
                    + " instead.");
            pw.println();
            Class lastClass = null;
            final int start_segment_index = segment_index * classes_per_file;
            final int end_segment_index = Math.min(segment_index * classes_per_file + classes_per_file,
                    classes.size());
            List<Class> classesSegList = classes.subList(start_segment_index, end_segment_index);
            pw.println();
            pw.println(tabs + "// start_segment_index = " + start_segment_index);
            pw.println(tabs + "// start_segment_index = " + end_segment_index);
            pw.println(tabs + "// segment_index = " + segment_index);
            pw.println(tabs + "// classesSegList=" + classesSegList);
            pw.println();
            for (int class_index = 0; class_index < classesSegList.size(); class_index++) {
                Class clss = classesSegList.get(class_index);
                pw.println();
                pw.println(tabs + "// class_index = " + class_index + " clss=" + clss);
                pw.println();
                String clssName = clss.getCanonicalName();
                tabs = openClassNamespace(clss, pw, tabs, lastClass);
                String clssOnlyName = getCppClassName(clss);
                map.put(CLASS_NAME, clssOnlyName);
                map.put("%BASE_CLASS_FULL_NAME%", classToCppBase(clss));
                map.put(OBJECT_CLASS_FULL_NAME, getCppRelativeName(Object.class, clss));
                tabs += TAB_STRING;
                processTemplate(pw, map, HEADER_CLASS_STARTH, tabs);
                tabs += TAB_STRING;

                Constructor constructors[] = clss.getDeclaredConstructors();
                if (!hasNoArgConstructor(constructors)) {
                    if (Modifier.isAbstract(clss.getModifiers()) || clss.isInterface()) {
                        pw.println(tabs + "protected:");
                        pw.println(tabs + clssOnlyName + "() {};");
                        pw.println(tabs + "public:");
                    } else {
                        if (constructors.length > 0) {
                            pw.println(tabs + "protected:");
                        }
                        pw.println(tabs + clssOnlyName + "();");
                        if (constructors.length > 0) {
                            pw.println(tabs + "public:");
                        }
                    }
                }
                for (Constructor c : constructors) {
                    if (c.getParameterTypes().length == 0 && Modifier.isProtected(c.getModifiers())) {
                        pw.println(tabs + "protected:");
                        pw.println(tabs + clssOnlyName + "();");
                        pw.println(tabs + "public:");
                    }
                    if (checkConstructor(c, clss, classes)) {
                        continue;
                    }

                    if (c.getParameterTypes().length == 1 && clss.isAssignableFrom(c.getParameterTypes()[0])) {
                        continue;
                    }
                    if (!Modifier.isPublic(c.getModifiers())) {
                        continue;
                    }
                    if (c.getParameterTypes().length == 1) {
                        if (c.getParameterTypes()[0].getName().equals(clss.getName())) {
                            //                                    if(verbose) System.out.println("skipping constructor.");
                            continue;
                        }
                    }

                    if (!checkParameters(c.getParameterTypes(), classes)) {
                        continue;
                    }
                    pw.println(
                            tabs + clssOnlyName + getCppParamDeclarations(c.getParameterTypes(), clss) + ";");
                    if (isConstructorToMakeEasy(c, clss)) {
                        pw.println(tabs + clssOnlyName
                                + getEasyCallCppParamDeclarations(c.getParameterTypes(), clss) + ";");
                    }
                }

                pw.println(tabs + "~" + clssOnlyName + "();");
                Field fa[] = clss.getDeclaredFields();
                for (int findex = 0; findex < fa.length; findex++) {
                    Field field = fa[findex];
                    if (addGetterMethod(field, clss, classes)) {
                        pw.println(tabs + getCppFieldGetterDeclaration(field, clss));
                    }
                    if (addSetterMethod(field, clss, classes)) {
                        pw.println(tabs + getCppFieldSetterDeclaration(field, clss));
                    }
                }
                Method methods[] = clss.getDeclaredMethods();
                for (int j = 0; j < methods.length; j++) {
                    Method method = methods[j];
                    if (!checkMethod(method, classes)) {
                        continue;
                    }
                    if ((method.getModifiers() & Modifier.PUBLIC) == Modifier.PUBLIC) {
                        pw.println(tabs + getCppDeclaration(method, clss));
                    }
                    if (isArrayStringMethod(method)) {
                        pw.println(tabs + getCppModifiers(method.getModifiers())
                                + getCppType(method.getReturnType(), clss) + " " + fixMethodName(method)
                                + "(int argc,const char **argv);");
                    }
                    if (isMethodToMakeEasy(method)) {
                        pw.println(tabs + getEasyCallCppDeclaration(method, clss));
                    }
                }
                tabs = tabs.substring(TAB_STRING.length());
                pw.println(tabs + "}; // end class " + clssOnlyName);
                tabs = tabs.substring(0, tabs.length() - 1);
                Class nextClass = (class_index < (classesSegList.size() - 1))
                        ? classesSegList.get(class_index + 1)
                        : null;
                tabs = closeClassNamespace(clss, pw, tabs, nextClass);
                pw.println();
                lastClass = clss;
            }
            //processTemplate(pw, map, HEADER_TEMPLATE_ENDH, tabs);
        }
    }
    for (int segment_index = 0; segment_index < num_class_segments; segment_index++) {
        String output_segment_file = output;
        if (output_segment_file.endsWith(".cpp")) {
            output_segment_file = output_segment_file.substring(0, output_segment_file.length() - 4);
        } else if (output_segment_file.endsWith(".cc")) {
            output_segment_file = output_segment_file.substring(0, output_segment_file.length() - 3);
        }
        output_segment_file += "" + String.format(fmt, segment_index) + ".cpp";
        try (PrintWriter pw = new PrintWriter(new FileWriter(output_segment_file))) {
            tabs = "";
            if (segment_index < 1) {
                processTemplate(pw, map, "cpp_template_start_first.cpp", tabs);
            } else {
                processTemplate(pw, map, CPP_TEMPLATE_STARTCPP, tabs);
            }
            final int start_segment_index = segment_index * classes_per_file;
            final int end_segment_index = Math.min(segment_index * classes_per_file + classes_per_file,
                    classes.size());
            List<Class> classesSegList = classes.subList(start_segment_index, end_segment_index);
            pw.println();
            pw.println(tabs + "// start_segment_index = " + start_segment_index);
            pw.println(tabs + "// start_segment_index = " + end_segment_index);
            pw.println(tabs + "// segment_index = " + segment_index);
            pw.println(tabs + "// classesSegList=" + classesSegList);
            pw.println();
            Class lastClass = null;
            for (int class_index = 0; class_index < classesSegList.size(); class_index++) {
                Class clss = classesSegList.get(class_index);
                pw.println();
                pw.println(tabs + "// class_index = " + class_index + " clss=" + clss);
                pw.println();
                String clssName = clss.getCanonicalName();
                tabs = openClassNamespace(clss, pw, tabs, lastClass);
                String clssOnlyName = getCppClassName(clss);
                map.put(CLASS_NAME, clssOnlyName);
                map.put("%BASE_CLASS_FULL_NAME%", classToCppBase(clss));

                map.put(FULL_CLASS_NAME, clssName);
                String fcjs = classToJNISignature(clss);
                fcjs = fcjs.substring(1, fcjs.length() - 1);
                map.put(FULL_CLASS_JNI_SIGNATURE, fcjs);
                if (verbose) {
                    System.out.println("fcjs = " + fcjs);
                }
                map.put(OBJECT_CLASS_FULL_NAME, getCppRelativeName(Object.class, clss));
                map.put("%INITIALIZE_CONTEXT%", "");
                map.put("%INITIALIZE_CONTEXT_REF%", "");
                processTemplate(pw, map, CPP_START_CLASSCPP, tabs);
                Constructor constructors[] = clss.getDeclaredConstructors();

                if (!hasNoArgConstructor(constructors)) {
                    if (!Modifier.isAbstract(clss.getModifiers()) && !clss.isInterface()) {
                        pw.println(tabs + clssOnlyName + "::" + clssOnlyName + "() : " + classToCppBase(clss)
                                + "((jobject)NULL,false) {");
                        map.put(JNI_SIGNATURE, "()V");
                        map.put(CONSTRUCTOR_ARGS, "");
                        processTemplate(pw, map, CPP_NEWCPP, tabs);
                        pw.println(tabs + "}");
                        pw.println();
                    }

                }
                for (Constructor c : constructors) {
                    if (checkConstructor(c, clss, classes)) {
                        continue;
                    }
                    Class[] paramClasses = c.getParameterTypes();
                    pw.println(tabs + clssOnlyName + "::" + clssOnlyName
                            + getCppParamDeclarations(paramClasses, clss) + " : " + classToCppBase(clss)
                            + "((jobject)NULL,false) {");
                    tabs = tabs + TAB_STRING;
                    map.put(JNI_SIGNATURE, "(" + getJNIParamSignature(paramClasses) + ")V");
                    map.put(CONSTRUCTOR_ARGS,
                            (paramClasses.length > 0 ? "," : "") + getCppParamNames(paramClasses));
                    processTemplate(pw, map, CPP_NEWCPP, tabs);
                    tabs = tabs.substring(0, tabs.length() - 1);
                    pw.println(tabs + "}");
                    pw.println();
                    if (isConstructorToMakeEasy(c, clss)) {
                        pw.println(tabs + clssOnlyName + "::" + clssOnlyName
                                + getEasyCallCppParamDeclarations(c.getParameterTypes(), clss) + " : "
                                + classToCppBase(clss) + "((jobject)NULL,false) {");
                        processTemplate(pw, map, "cpp_start_easy_constructor.cpp", tabs);
                        for (int paramIndex = 0; paramIndex < paramClasses.length; paramIndex++) {
                            Class paramClasse = paramClasses[paramIndex];
                            String parmName = getParamNameIn(paramClasse, paramIndex);
                            if (isString(paramClasse)) {
                                pw.println(tabs + "jstring " + parmName + " = env->NewStringUTF(easyArg_"
                                        + paramIndex + ");");
                            } else if (isPrimitiveArray(paramClasse)) {
                                String callString = getMethodCallString(paramClasse.getComponentType());
                                pw.println(tabs + getCppArrayType(paramClasse.getComponentType()) + " "
                                        + classToParamNameDecl(paramClasse, paramIndex) + "= env->New"
                                        + callString + "Array(easyArg_" + paramIndex + "_length);");
                                pw.println(tabs + "env->Set" + callString + "ArrayRegion("
                                        + classToParamNameDecl(paramClasse, paramIndex) + ",0,easyArg_"
                                        + paramIndex + "_length,easyArg_" + paramIndex + ");");
                            } else {
                                pw.println(tabs + getCppType(paramClasse, clss) + " "
                                        + classToParamNameDecl(paramClasse, paramIndex) + "= easyArg_"
                                        + paramIndex + ";");
                            }
                        }
                        processTemplate(pw, map, "cpp_new_easy_internals.cpp", tabs);
                        for (int paramIndex = 0; paramIndex < paramClasses.length; paramIndex++) {
                            Class paramClasse = paramClasses[paramIndex];
                            String parmName = getParamNameIn(paramClasse, paramIndex);
                            if (isString(paramClasse)) {
                                pw.println(tabs + "jobjectRefType ref_" + paramIndex
                                        + " = env->GetObjectRefType(" + parmName + ");");
                                pw.println(tabs + "if(ref_" + paramIndex + " == JNIGlobalRefType) {");
                                pw.println(tabs + TAB_STRING + "env->DeleteGlobalRef(" + parmName + ");");
                                pw.println(tabs + "}");
                            } else if (isPrimitiveArray(paramClasse)) {
                                String callString = getMethodCallString(paramClasse.getComponentType());
                                pw.println(tabs + "env->Get" + callString + "ArrayRegion("
                                        + classToParamNameDecl(paramClasse, paramIndex) + ",0,easyArg_"
                                        + paramIndex + "_length,easyArg_" + paramIndex + ");");
                                pw.println(tabs + "jobjectRefType ref_" + paramIndex
                                        + " = env->GetObjectRefType(" + parmName + ");");
                                pw.println(tabs + "if(ref_" + paramIndex + " == JNIGlobalRefType) {");
                                pw.println(tabs + TAB_STRING + "env->DeleteGlobalRef(" + parmName + ");");
                                pw.println(tabs + "}");
                            } else {

                            }
                        }
                        processTemplate(pw, map, "cpp_end_easy_constructor.cpp", tabs);
                        pw.println(tabs + "}");
                    }
                }

                pw.println();
                pw.println(tabs + "// Destructor for " + clssName);
                pw.println(tabs + clssOnlyName + "::~" + clssOnlyName + "() {");
                pw.println(tabs + "\t// Place-holder for later extensibility.");
                pw.println(tabs + "}");
                pw.println();
                Field fa[] = clss.getDeclaredFields();
                for (int findex = 0; findex < fa.length; findex++) {
                    Field field = fa[findex];
                    if (addGetterMethod(field, clss, classes)) {
                        pw.println();
                        pw.println(tabs + "// Field getter for " + field.getName());
                        pw.println(getCppFieldGetterDefinitionStart(tabs, clssOnlyName, field, clss));
                        map.put("%FIELD_NAME%", field.getName());
                        map.put(JNI_SIGNATURE, classToJNISignature(field.getType()));
                        Class returnClass = field.getType();
                        map.put(METHOD_ONFAIL, getOnFailString(returnClass, clss));
                        map.put(METHOD_ARGS, "");
                        map.put("%METHOD_RETURN%", isVoid(returnClass) ? "" : "return");
                        map.put("%METHOD_CALL_TYPE%", getMethodCallString(returnClass));
                        map.put("%METHOD_RETURN_TYPE%", getCppType(returnClass, clss));
                        map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclare(returnClass));
                        String retStore = isVoid(returnClass) ? ""
                                : "retVal= (" + getMethodReturnVarType(returnClass) + ") ";
                        map.put("%METHOD_RETURN_STORE%", retStore);
                        map.put("%METHOD_RETURN_GET%", getMethodReturnGet(tabs, returnClass, clss));

                        if (Modifier.isStatic(field.getModifiers())) {
                            processTemplate(pw, map, "cpp_static_getfield.cpp", tabs);
                        } else {
                            processTemplate(pw, map, "cpp_getfield.cpp", tabs);
                        }

                        pw.println(tabs + "}");
                    }
                    if (addSetterMethod(field, clss, classes)) {
                        pw.println();
                        pw.println(tabs + "// Field setter for " + field.getName());
                        pw.println(getCppFieldSetterDefinitionStart(tabs, clssOnlyName, field, clss));
                        map.put("%FIELD_NAME%", field.getName());
                        map.put(JNI_SIGNATURE, classToJNISignature(field.getType()));
                        Class returnClass = void.class;
                        map.put(METHOD_ONFAIL, getOnFailString(returnClass, clss));
                        Class[] paramClasses = new Class[] { field.getType() };
                        String methodArgs = getCppParamNames(paramClasses);
                        map.put(METHOD_ARGS, (paramClasses.length > 0 ? "," : "") + methodArgs);
                        map.put("%METHOD_RETURN%", isVoid(returnClass) ? "" : "return");
                        map.put("%METHOD_CALL_TYPE%", getMethodCallString(field.getType()));
                        map.put("%METHOD_RETURN_TYPE%", getCppType(returnClass, clss));
                        map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclare(returnClass));
                        String retStore = isVoid(returnClass) ? ""
                                : "retVal= (" + getMethodReturnVarType(returnClass) + ") ";
                        map.put("%METHOD_RETURN_STORE%", retStore);
                        map.put("%METHOD_RETURN_GET%", getMethodReturnGet(tabs, returnClass, clss));

                        if (Modifier.isStatic(field.getModifiers())) {
                            processTemplate(pw, map, "cpp_static_setfield.cpp", tabs);
                        } else {
                            processTemplate(pw, map, "cpp_setfield.cpp", tabs);
                        }

                        pw.println(tabs + "}");
                    }
                }
                Method methods[] = clss.getDeclaredMethods();
                for (int j = 0; j < methods.length; j++) {
                    Method method = methods[j];

                    if (checkMethod(method, classes)) {
                        pw.println();
                        pw.println(getCppMethodDefinitionStart(tabs, clssOnlyName, method, clss));
                        map.put(METHOD_NAME, method.getName());
                        if (fixMethodName(method).contains("equals2")) {
                            if (verbose) {
                                System.out.println("debug me");
                            }
                        }
                        map.put("%JAVA_METHOD_NAME%", method.getName());
                        Class[] paramClasses = method.getParameterTypes();
                        String methodArgs = getCppParamNames(paramClasses);
                        map.put(METHOD_ARGS, (paramClasses.length > 0 ? "," : "") + methodArgs);
                        Class returnClass = method.getReturnType();
                        map.put(JNI_SIGNATURE, "(" + getJNIParamSignature(paramClasses) + ")"
                                + classToJNISignature(returnClass));
                        map.put(METHOD_ONFAIL, getOnFailString(returnClass, clss));
                        map.put("%METHOD_RETURN%", isVoid(returnClass) ? "" : "return");
                        map.put("%METHOD_CALL_TYPE%", getMethodCallString(returnClass));
                        map.put("%METHOD_RETURN_TYPE%", getCppType(returnClass, clss));
                        map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclare(returnClass));
                        String retStore = isVoid(returnClass) ? ""
                                : "retVal= (" + getMethodReturnVarType(returnClass) + ") ";
                        map.put("%METHOD_RETURN_STORE%", retStore);
                        map.put("%METHOD_RETURN_GET%", getMethodReturnGet(tabs, returnClass, clss));
                        tabs += TAB_STRING;
                        if (!Modifier.isStatic(method.getModifiers())) {
                            processTemplate(pw, map, CPP_METHODCPP, tabs);
                        } else {
                            processTemplate(pw, map, CPP_STATIC_METHODCPP, tabs);
                        }
                        tabs = tabs.substring(0, tabs.length() - TAB_STRING.length());
                        pw.println(tabs + "}");
                        if (isArrayStringMethod(method)) {
                            map.put(METHOD_RETURN_STORE,
                                    isVoid(returnClass) ? "" : getCppType(returnClass, clss) + " returnVal=");
                            map.put(METHOD_RETURN_GET, isVoid(returnClass) ? "return ;" : "return returnVal;");
                            processTemplate(pw, map, CPP_EASY_STRING_ARRAY_METHODCPP, tabs);
                        } else if (isMethodToMakeEasy(method)) {
                            pw.println();
                            pw.println(tabs + "// Easy call alternative for " + method.getName());
                            pw.println(getEasyCallCppMethodDefinitionStart(tabs, clssOnlyName, method, clss));
                            tabs += TAB_STRING;
                            map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclareOut(returnClass, clss));
                            processTemplate(pw, map, "cpp_start_easy_method.cpp", tabs);
                            for (int paramIndex = 0; paramIndex < paramClasses.length; paramIndex++) {
                                Class paramClasse = paramClasses[paramIndex];
                                String parmName = getParamNameIn(paramClasse, paramIndex);
                                if (isString(paramClasse)) {
                                    pw.println(tabs + "jstring " + parmName + " = env->NewStringUTF(easyArg_"
                                            + paramIndex + ");");
                                } else if (isPrimitiveArray(paramClasse)) {
                                    String callString = getMethodCallString(paramClasse.getComponentType());
                                    pw.println(tabs + getCppArrayType(paramClasse.getComponentType()) + " "
                                            + classToParamNameDecl(paramClasse, paramIndex) + "= env->New"
                                            + callString + "Array(easyArg_" + paramIndex + "_length);");
                                    pw.println(tabs + "env->Set" + callString + "ArrayRegion("
                                            + classToParamNameDecl(paramClasse, paramIndex) + ",0,easyArg_"
                                            + paramIndex + "_length,easyArg_" + paramIndex + ");");
                                } else {
                                    pw.println(tabs + getCppType(paramClasse, clss) + " "
                                            + classToParamNameDecl(paramClasse, paramIndex) + "= easyArg_"
                                            + paramIndex + ";");
                                }
                            }
                            String methodArgsIn = getCppParamNamesIn(paramClasses);
                            String retStoreOut = isVoid(returnClass) ? ""
                                    : "retVal= (" + getMethodReturnOutVarType(returnClass, clss) + ") ";

                            pw.println(tabs + retStoreOut + fixMethodName(method) + "(" + methodArgsIn + ");");
                            for (int paramIndex = 0; paramIndex < paramClasses.length; paramIndex++) {
                                Class paramClasse = paramClasses[paramIndex];
                                String parmName = getParamNameIn(paramClasse, paramIndex);
                                if (isString(paramClasse)) {
                                    pw.println(tabs + "jobjectRefType ref_" + paramIndex
                                            + " = env->GetObjectRefType(" + parmName + ");");
                                    pw.println(tabs + "if(ref_" + paramIndex + " == JNIGlobalRefType) {");
                                    pw.println(tabs + TAB_STRING + "env->DeleteGlobalRef(" + parmName + ");");
                                    pw.println(tabs + "}");
                                } else if (isPrimitiveArray(paramClasse)) {
                                    String callString = getMethodCallString(paramClasse.getComponentType());
                                    pw.println(tabs + "env->Get" + callString + "ArrayRegion("
                                            + classToParamNameDecl(paramClasse, paramIndex) + ",0,easyArg_"
                                            + paramIndex + "_length,easyArg_" + paramIndex + ");");
                                    pw.println(tabs + "jobjectRefType ref_" + paramIndex
                                            + " = env->GetObjectRefType(" + parmName + ");");
                                    pw.println(tabs + "if(ref_" + paramIndex + " == JNIGlobalRefType) {");
                                    pw.println(tabs + TAB_STRING + "env->DeleteGlobalRef(" + parmName + ");");
                                    pw.println(tabs + "}");
                                } else {

                                }
                            }
                            processTemplate(pw, map, "cpp_end_easy_method.cpp", tabs);
                            if (!isVoid(returnClass)) {
                                pw.println(tabs + "return retVal;");
                            }
                            tabs = tabs.substring(TAB_STRING.length());
                            pw.println(tabs + "}");
                            pw.println();
                        }
                    }
                }
                processTemplate(pw, map, CPP_END_CLASSCPP, tabs);
                tabs = tabs.substring(0, tabs.length() - 1);
                Class nextClass = (class_index < (classesSegList.size() - 1))
                        ? classesSegList.get(class_index + 1)
                        : null;
                tabs = closeClassNamespace(clss, pw, tabs, nextClass);
                lastClass = clss;
            }

            if (segment_index < 1) {
                if (null != nativesClassMap) {
                    for (Entry<String, Class> e : nativesClassMap.entrySet()) {
                        final Class javaClass = e.getValue();
                        final String nativeClassName = e.getKey();
                        map.put(CLASS_NAME, nativeClassName);
                        map.put(FULL_CLASS_NAME, nativeClassName);
                        map.put(FULL_CLASS_JNI_SIGNATURE, nativeClassName);
                        map.put("%BASE_CLASS_FULL_NAME%",
                                "::" + namespace + "::" + getModifiedClassName(javaClass).replace(".", "::"));
                        map.put(OBJECT_CLASS_FULL_NAME, "::" + namespace + "::java::lang::Object");
                        map.put("%INITIALIZE_CONTEXT%", "context=NULL; initContext(NULL,false);");
                        map.put("%INITIALIZE_CONTEXT_REF%", "context=NULL; initContext(objref.context,true);");
                        tabs += TAB_STRING;

                        processTemplate(pw, map, CPP_START_CLASSCPP, tabs);
                        pw.println();
                        pw.println(tabs + nativeClassName + "::" + nativeClassName + "() : "
                                + getModifiedClassName(javaClass).replace(".", "::")
                                + "((jobject)NULL,false) {");
                        tabs += TAB_STRING;
                        pw.println(tabs + "context=NULL;");
                        pw.println(tabs + "initContext(NULL,false);");
                        map.put(JNI_SIGNATURE, "()V");
                        map.put(CONSTRUCTOR_ARGS, "");
                        processTemplate(pw, map, "cpp_new_native.cpp", tabs);
                        tabs = tabs.substring(TAB_STRING.length());
                        pw.println(tabs + "}");
                        pw.println();
                        pw.println(tabs + "// Destructor for " + nativeClassName);
                        pw.println(tabs + nativeClassName + "::~" + nativeClassName + "() {");
                        pw.println(tabs + TAB_STRING + "if(NULL != context) {");
                        pw.println(tabs + TAB_STRING + TAB_STRING + "deleteContext();");
                        pw.println(tabs + TAB_STRING + "}");
                        pw.println(tabs + TAB_STRING + "context=NULL;");
                        pw.println(tabs + "}");
                        pw.println();
                        //                            pw.println(tabs + "public:");
                        //                            pw.println(tabs + nativeClassName + "();");
                        //                            pw.println(tabs + "~" + nativeClassName + "();");
                        tabs = tabs.substring(TAB_STRING.length());
                        //                            Method methods[] = javaClass.getDeclaredMethods();
                        //                            for (int j = 0; j < methods.length; j++) {
                        //                                Method method = methods[j];
                        //                                int modifiers = method.getModifiers();
                        //                                if (!Modifier.isPublic(modifiers)) {
                        //                                    continue;
                        //                                }
                        //                                pw.println(tabs + getCppDeclaration(method, javaClass));
                        //                            }
                        //                            pw.println(tabs + "}; // end class " + nativeClassName);
                        processTemplate(pw, map, CPP_END_CLASSCPP, tabs);
                    }
                }
                processTemplate(pw, map, "cpp_template_end_first.cpp", tabs);
                tabs = "";
                if (null != nativesClassMap) {
                    pw.println("using namespace " + namespace + ";");
                    pw.println("#ifdef __cplusplus");
                    pw.println("extern \"C\" {");
                    pw.println("#endif");
                    int max_method_count = 0;
                    tabs = "";
                    for (Entry<String, Class> e : nativesClassMap.entrySet()) {
                        final Class javaClass = e.getValue();
                        final String nativeClassName = e.getKey();
                        map.put(CLASS_NAME, nativeClassName);
                        map.put(FULL_CLASS_NAME, nativeClassName);
                        map.put("%BASE_CLASS_FULL_NAME%",
                                "::" + namespace + "::" + getModifiedClassName(javaClass).replace(".", "::"));
                        map.put(OBJECT_CLASS_FULL_NAME, "::" + namespace + "::java::lang::Object");
                        map.put(FULL_CLASS_JNI_SIGNATURE, nativeClassName);
                        map.put(METHOD_ONFAIL, "return;");
                        Method methods[] = javaClass.getDeclaredMethods();
                        if (max_method_count < methods.length) {
                            max_method_count = methods.length;
                        }
                        for (int j = 0; j < methods.length; j++) {
                            Method method = methods[j];
                            int modifiers = method.getModifiers();
                            if (!Modifier.isPublic(modifiers)) {
                                continue;
                            }
                            if (Modifier.isAbstract(modifiers) && Modifier.isPublic(modifiers)
                                    && !Modifier.isStatic(modifiers)
                                    //                                        && !method.isDefault()
                                    && !method.isSynthetic()) {
                                Class[] paramClasses = method.getParameterTypes();
                                String methodArgs = getCppParamNames(paramClasses);
                                map.put(METHOD_ARGS, methodArgs);
                                map.put(METHOD_NAME, method.getName());
                                Class returnClass = method.getReturnType();
                                String retStore = isVoid(returnClass) ? ""
                                        : "retVal= (" + getMethodReturnVarType(returnClass) + ") ";
                                map.put(METHOD_ONFAIL, getOnFailString(returnClass, javaClass));
                                map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclare(returnClass));
                                map.put("%METHOD_RETURN_STORE%", retStore);
                                map.put("%METHOD_RETURN_GET%",
                                        getMethodReturnGet(tabs, returnClass, javaClass));
                                pw.println();
                                String paramDecls = getCppParamDeclarations(paramClasses, javaClass);
                                String argsToAdd = method.getParameterTypes().length > 0
                                        ? "," + paramDecls.substring(1, paramDecls.length() - 1)
                                        : "";
                                pw.println("JNIEXPORT " + getCppType(returnClass, javaClass) + " JNICALL Java_"
                                        + nativeClassName + "_" + method.getName()
                                        + "(JNIEnv *env, jobject jthis" + argsToAdd + ") {");
                                tabs = TAB_STRING;
                                processTemplate(pw, map, "cpp_native_wrap.cpp", tabs);
                                tabs = tabs.substring(TAB_STRING.length());
                                pw.println("}");
                                pw.println();
                            }
                        }
                        pw.println("JNIEXPORT void JNICALL Java_" + nativeClassName
                                + "_nativeDelete(JNIEnv *env, jobject jthis) {");
                        tabs += TAB_STRING;
                        map.put(METHOD_ONFAIL, getOnFailString(void.class, javaClass));
                        processTemplate(pw, map, "cpp_native_delete.cpp", tabs);
                        tabs = tabs.substring(TAB_STRING.length());
                        pw.println(tabs + "}");
                        pw.println();
                    }
                    pw.println("#ifdef __cplusplus");
                    pw.println("} // end extern \"C\"");
                    pw.println("#endif");
                    map.put("%MAX_METHOD_COUNT%", Integer.toString(max_method_count + 1));
                    processTemplate(pw, map, "cpp_start_register_native.cpp", tabs);
                    for (Entry<String, Class> e : nativesClassMap.entrySet()) {
                        final Class javaClass = e.getValue();
                        final String nativeClassName = e.getKey();
                        map.put(CLASS_NAME, nativeClassName);
                        map.put(FULL_CLASS_NAME, nativeClassName);
                        map.put("%BASE_CLASS_FULL_NAME%",
                                "::" + namespace + "::" + getModifiedClassName(javaClass).replace(".", "::"));
                        map.put(OBJECT_CLASS_FULL_NAME, "::" + namespace + "::java::lang::Object");
                        processTemplate(pw, map, "cpp_start_register_native_class.cpp", tabs);
                        tabs += TAB_STRING;
                        Method methods[] = javaClass.getDeclaredMethods();
                        int method_number = 0;
                        for (int j = 0; j < methods.length; j++) {
                            Method method = methods[j];
                            int modifiers = method.getModifiers();
                            if (!Modifier.isPublic(modifiers)) {
                                continue;
                            }
                            if (Modifier.isAbstract(modifiers) && Modifier.isPublic(modifiers)
                                    && !Modifier.isStatic(modifiers)
                                    //                                        && !method.isDefault()
                                    && !method.isSynthetic()) {
                                map.put("%METHOD_NUMBER%", Integer.toString(method_number));
                                map.put(METHOD_NAME, method.getName());

                                map.put(JNI_SIGNATURE, "(" + getJNIParamSignature(method.getParameterTypes())
                                        + ")" + classToJNISignature(method.getReturnType()));
                                processTemplate(pw, map, "cpp_register_native_item.cpp", tabs);
                                method_number++;
                            }
                        }
                        map.put("%METHOD_NUMBER%", Integer.toString(method_number));
                        map.put(METHOD_NAME, "nativeDelete");
                        map.put(JNI_SIGNATURE, "()V");
                        processTemplate(pw, map, "cpp_register_native_item.cpp", tabs);
                        map.put("%NUM_NATIVE_METHODS%", Integer.toString(method_number));
                        processTemplate(pw, map, "cpp_end_register_native_class.cpp", tabs);
                        tabs = tabs.substring(TAB_STRING.length());
                    }
                    processTemplate(pw, map, "cpp_end_register_native.cpp", tabs);
                } else {
                    pw.println("// No Native classes : registerNativMethods not needed.");
                    pw.println("static void registerNativeMethods(JNIEnv *env) {}");
                }

            } else {
                processTemplate(pw, map, CPP_TEMPLATE_ENDCPP, tabs);
            }
        }
        if (null != nativesClassMap) {
            tabs = "";
            for (Entry<String, Class> e : nativesClassMap.entrySet()) {
                String nativeClassName = e.getKey();
                File nativeClassHeaderFile = new File(
                        namespace.toLowerCase() + "_" + nativeClassName.toLowerCase() + ".h");
                map.put("%NATIVE_CLASS_HEADER%", nativeClassHeaderFile.getName());
                map.put(CLASS_NAME, nativeClassName);
                if (nativeClassHeaderFile.exists()) {
                    if (verbose) {
                        System.out.println("skipping " + nativeClassHeaderFile.getCanonicalPath()
                                + " since it already exists.");
                    }
                } else {
                    try (PrintWriter pw = new PrintWriter(new FileWriter(nativeClassHeaderFile))) {
                        processTemplate(pw, map, "header_native_imp.h", tabs);
                    }
                }
                File nativeClassCppFile = new File(
                        namespace.toLowerCase() + "_" + nativeClassName.toLowerCase() + ".cpp");
                if (nativeClassCppFile.exists()) {
                    if (verbose) {
                        System.out.println("skipping " + nativeClassCppFile.getCanonicalPath()
                                + " since it already exists.");
                    }
                } else {
                    try (PrintWriter pw = new PrintWriter(new FileWriter(nativeClassCppFile))) {
                        processTemplate(pw, map, "cpp_native_imp_start.cpp", tabs);
                        Class javaClass = e.getValue();
                        Method methods[] = javaClass.getDeclaredMethods();
                        int method_number = 0;
                        for (int j = 0; j < methods.length; j++) {
                            Method method = methods[j];
                            int modifiers = method.getModifiers();
                            if (!Modifier.isPublic(modifiers)) {
                                continue;
                            }
                            if (Modifier.isAbstract(modifiers) && Modifier.isPublic(modifiers)
                                    && !Modifier.isStatic(modifiers)
                                    //                                        && !method.isDefault()
                                    && !method.isSynthetic()) {
                                Class[] paramClasses = method.getParameterTypes();
                                //                                    String methodArgs = getCppParamNames(paramClasses);
                                String paramDecls = getCppParamDeclarations(paramClasses, javaClass);
                                String methodArgs = method.getParameterTypes().length > 0
                                        ? paramDecls.substring(1, paramDecls.length() - 1)
                                        : "";
                                map.put(METHOD_ARGS, methodArgs);
                                map.put(METHOD_NAME, method.getName());
                                Class returnClass = method.getReturnType();
                                String retStore = isVoid(returnClass) ? ""
                                        : "retVal= (" + getMethodReturnVarType(returnClass) + ") ";
                                map.put(METHOD_ONFAIL, getOnFailString(returnClass, javaClass));
                                map.put("%RETURN_TYPE%", getCppType(returnClass, javaClass));
                                map.put("%RETURN_VAR_DECLARE%", getMethodReturnVarDeclare(returnClass));
                                map.put("%METHOD_RETURN_STORE%", retStore);
                                map.put("%METHOD_RETURN_GET%",
                                        getMethodReturnGet(tabs, returnClass, javaClass));
                                processTemplate(pw, map, "cpp_native_imp_stub.cpp", tabs);
                            }
                        }
                        processTemplate(pw, map, "cpp_native_imp_end.cpp", tabs);
                    }
                }
            }
        }
    }

    main_completed = true;
}

---

From source file:org.apache.openjpa.enhance.PCEnhancer.java

/**
 * Adds the <code>pcCopyKeyFieldsFromObjectId</code> methods
 * to classes using application identity.
 *///w  w  w .ja v  a2  s  .c  om
private void addCopyKeyFieldsFromObjectIdMethod(boolean fieldManager) throws NoSuchMethodException {
    // public void pcCopyKeyFieldsFromObjectId (ObjectIdFieldConsumer fc,
    //   Object oid)
    String[] args = (fieldManager) ? new String[] { OIDFCTYPE.getName(), Object.class.getName() }
            : new String[] { Object.class.getName() };
    BCMethod method = _pc.declareMethod(PRE + "CopyKeyFieldsFromObjectId", void.class.getName(), args);
    Code code = method.getCode(true);

    // call superclass method
    if (_meta.getPCSuperclass() != null && !getCreateSubclass()) {
        loadManagedInstance(code, false);
        for (int i = 0; i < args.length; i++)
            code.aload().setParam(i);
        code.invokespecial().setMethod(getType(_meta.getPCSuperclassMetaData()).getName(),
                PRE + "CopyKeyFieldsFromObjectId", void.class.getName(), args);
    }

    if (fieldManager)
        code.aload().setParam(1);
    else
        code.aload().setParam(0);

    if (!_meta.isOpenJPAIdentity() && _meta.isObjectIdTypeShared()) {
        // oid = ((ObjectId) id).getId ();
        code.checkcast().setType(ObjectId.class);
        code.invokevirtual().setMethod(ObjectId.class, "getId", Object.class, null);
    }

    // <oid type> cast = (<oid type>) oid;
    int id = code.getNextLocalsIndex();
    Class oidType = _meta.getObjectIdType();
    code.checkcast().setType(oidType);
    code.astore().setLocal(id);

    // fs.store<type>Field (<index>, id.<field>); or...
    // this.<field> = id.<field>
    // or for single field identity: id.getId ()
    FieldMetaData[] fmds = getCreateSubclass() ? _meta.getFields() : _meta.getDeclaredFields();
    String name;
    Class type;
    Class unwrapped;
    Field field;
    Method getter;
    for (int i = 0; i < fmds.length; i++) {
        if (!fmds[i].isPrimaryKey())
            continue;

        name = fmds[i].getName();
        type = fmds[i].getObjectIdFieldType();
        if (!fieldManager && fmds[i].getDeclaredTypeCode() == JavaTypes.PC) {
            // if (sm == null) return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            JumpInstruction ifins = code.ifnonnull();
            code.vreturn();
            // sm.getPCPrimaryKey(oid, i + pcInheritedFieldCount); 
            ifins.setTarget(loadManagedInstance(code, false));
            code.dup(); // leave orig on stack to set value into
            code.getfield().setField(SM, SMTYPE);
            code.aload().setLocal(id);
            code.constant().setValue(i);
            code.getstatic().setField(INHERIT, int.class);
            code.iadd();
            code.invokeinterface().setMethod(StateManager.class, "getPCPrimaryKey", Object.class,
                    new Class[] { Object.class, int.class });
            code.checkcast().setType(fmds[i].getDeclaredType());
        } else {
            unwrapped = (fmds[i].getDeclaredTypeCode() == JavaTypes.PC) ? type
                    : unwrapSingleFieldIdentity(fmds[i]);
            if (fieldManager) {
                code.aload().setParam(0);
                code.constant().setValue(i);
                code.getstatic().setField(INHERIT, int.class);
                code.iadd();
            } else
                loadManagedInstance(code, false);

            if (unwrapped != type) {
                code.anew().setType(type);
                code.dup();
            }
            code.aload().setLocal(id);
            if (_meta.isOpenJPAIdentity()) {
                if (oidType == ObjectId.class) {
                    code.invokevirtual().setMethod(oidType, "getId", Object.class, null);
                    if (!fieldManager && type != Object.class)
                        code.checkcast().setType(fmds[i].getDeclaredType());
                } else if (oidType == DateId.class) {
                    code.invokevirtual().setMethod(oidType, "getId", Date.class, null);
                    if (!fieldManager && type != Date.class)
                        code.checkcast().setType(fmds[i].getDeclaredType());
                } else {
                    code.invokevirtual().setMethod(oidType, "getId", unwrapped, null);
                    if (unwrapped != type)
                        code.invokespecial().setMethod(type, "<init>", void.class, new Class[] { unwrapped });
                }
            } else if (isFieldAccess(fmds[i])) {
                field = Reflection.findField(oidType, name, true);
                if (Modifier.isPublic(field.getModifiers()))
                    code.getfield().setField(field);
                else {
                    boolean usedFastOid = false;
                    if (_optimizeIdCopy) {
                        // If fastOids, ignore access type and try to use a public getter
                        getter = Reflection.findGetter(oidType, name, false);
                        if (getter != null && Modifier.isPublic(getter.getModifiers())) {
                            usedFastOid = true;
                            code.invokevirtual().setMethod(getter);
                        }
                    }
                    if (!usedFastOid) {
                        // Reflection.getXXX(oid, Reflection.findField(...));
                        code.classconstant().setClass(oidType);
                        code.constant().setValue(name);
                        code.constant().setValue(true);
                        code.invokestatic().setMethod(Reflection.class, "findField", Field.class,
                                new Class[] { Class.class, String.class, boolean.class });
                        code.invokestatic().setMethod(getReflectionGetterMethod(type, Field.class));
                        if (!type.isPrimitive() && type != Object.class)
                            code.checkcast().setType(type);
                    }
                }
            } else {
                getter = Reflection.findGetter(oidType, name, true);
                if (Modifier.isPublic(getter.getModifiers()))
                    code.invokevirtual().setMethod(getter);
                else {
                    // Reflection.getXXX(oid, Reflection.findGetter(...));
                    code.classconstant().setClass(oidType);
                    code.constant().setValue(name);
                    code.constant().setValue(true);
                    code.invokestatic().setMethod(Reflection.class, "findGetter", Method.class,
                            new Class[] { Class.class, String.class, boolean.class });
                    code.invokestatic().setMethod(getReflectionGetterMethod(type, Method.class));
                    if (!type.isPrimitive() && type != Object.class)
                        code.checkcast().setType(type);
                }
            }
        }

        if (fieldManager)
            code.invokeinterface().setMethod(getFieldConsumerMethod(type));
        else
            addSetManagedValueCode(code, fmds[i]);
    }
    code.vreturn();

    code.calculateMaxStack();
    code.calculateMaxLocals();
}

---

From source file:com.codename1.impl.android.AndroidImplementation.java

private static void allowPatch(HttpURLConnection connection) {
    if (enabledPatch) {
        return;// w ww  . j  a  va2s. c  o  m
    }
    if (patchFailed) {
        connection.setRequestProperty("X-HTTP-Method-Override", "PATCH");
        return;
    }
    try {
        Field methodsField = HttpURLConnection.class.getDeclaredField("methods");

        Field modifiersField = Field.class.getDeclaredField("modifiers");
        modifiersField.setAccessible(true);
        modifiersField.setInt(methodsField, methodsField.getModifiers() & ~Modifier.FINAL);

        methodsField.setAccessible(true);

        String[] oldMethods = (String[]) methodsField.get(null);
        Set<String> methodsSet = new LinkedHashSet<String>(Arrays.asList(oldMethods));
        methodsSet.addAll(Arrays.asList("PATCH"));
        String[] newMethods = methodsSet.toArray(new String[0]);

        methodsField.set(null/*static field*/, newMethods);
        enabledPatch = true;
    } catch (NoSuchFieldException e) {
        patchFailed = true;
        connection.setRequestProperty("X-HTTP-Method-Override", "PATCH");
    } catch (IllegalAccessException ee) {
        patchFailed = true;
        connection.setRequestProperty("X-HTTP-Method-Override", "PATCH");
    }
}

---

From source file:org.apache.openjpa.enhance.PCEnhancer.java

/**
 * Adds the <code>pcCopyKeyFieldsToObjectId</code> methods
 * to classes using application identity.
 *//*from  ww  w .ja  v  a 2  s.  co m*/
private void addCopyKeyFieldsToObjectIdMethod(boolean fieldManager) throws NoSuchMethodException {
    // public void pcCopyKeyFieldsToObjectId (ObjectIdFieldSupplier fs,
    //   Object oid)
    String[] args = (fieldManager) ? new String[] { OIDFSTYPE.getName(), Object.class.getName() }
            : new String[] { Object.class.getName() };
    BCMethod method = _pc.declareMethod(PRE + "CopyKeyFieldsToObjectId", void.class.getName(), args);
    Code code = method.getCode(true);

    // single field identity always throws exception
    if (_meta.isOpenJPAIdentity()) {
        throwException(code, INTERNEXCEP);

        code.calculateMaxStack();
        code.calculateMaxLocals();
        return;
    }

    // call superclass method
    if (_meta.getPCSuperclass() != null && !getCreateSubclass()) {
        loadManagedInstance(code, false);
        for (int i = 0; i < args.length; i++)
            code.aload().setParam(i);
        code.invokespecial().setMethod(getType(_meta.getPCSuperclassMetaData()).getName(),
                PRE + "CopyKeyFieldsToObjectId", void.class.getName(), args);
    }

    // Object id = oid;
    if (fieldManager)
        code.aload().setParam(1);
    else
        code.aload().setParam(0);

    if (_meta.isObjectIdTypeShared()) {
        // oid = ((ObjectId) id).getId ();
        code.checkcast().setType(ObjectId.class);
        code.invokevirtual().setMethod(ObjectId.class, "getId", Object.class, null);
    }

    // <oid type> id = (<oid type>) oid;
    int id = code.getNextLocalsIndex();
    Class oidType = _meta.getObjectIdType();
    code.checkcast().setType(oidType);
    code.astore().setLocal(id);

    // int inherited = pcInheritedFieldCount;
    int inherited = 0;
    if (fieldManager) {
        code.getstatic().setField(INHERIT, int.class);
        inherited = code.getNextLocalsIndex();
        code.istore().setLocal(inherited);
    }

    // id.<field> = fs.fetch<type>Field (<index>); or...
    // id.<field> = pc.<field>;
    FieldMetaData[] fmds = getCreateSubclass() ? _meta.getFields() : _meta.getDeclaredFields();
    Class<?> type;
    String name;
    Field field;
    Method setter;
    boolean reflect;
    // If optimizeIdCopy is enabled and not a field manager method, try to
    // optimize the copyTo by using a public constructor instead of reflection
    if (_optimizeIdCopy) {
        ArrayList<Integer> pkfields = optimizeIdCopy(oidType, fmds);
        if (pkfields != null) {
            // search for a constructor on the IdClass that can be used
            // to construct the IdClass
            int parmOrder[] = getIdClassConstructorParmOrder(oidType, pkfields, fmds);
            if (parmOrder != null) {
                // If using a field manager, values must be loaded into locals so they can be properly ordered
                // as constructor parameters.
                int[] localIndexes = new int[fmds.length];
                if (fieldManager) {
                    for (int k = 0; k < fmds.length; k++) {
                        if (!fmds[k].isPrimaryKey())
                            continue;
                        code.aload().setParam(0);
                        code.constant().setValue(k);
                        code.iload().setLocal(inherited);
                        code.iadd();
                        code.invokeinterface()
                                .setMethod(getFieldSupplierMethod(fmds[k].getObjectIdFieldType()));
                        localIndexes[k] = code.getNextLocalsIndex();
                        storeLocalValue(code, localIndexes[k], fmds[k].getObjectIdFieldTypeCode());
                    }
                }

                // found a matching constructor.  parm array is constructor parm order
                code.anew().setType(oidType);
                code.dup();
                // build the parm list in order
                Class<?>[] clsArgs = new Class<?>[parmOrder.length];
                for (int i = 0; i < clsArgs.length; i++) {
                    int parmIndex = parmOrder[i];
                    clsArgs[i] = fmds[parmIndex].getObjectIdFieldType();
                    if (!fieldManager) {
                        loadManagedInstance(code, false);
                        addGetManagedValueCode(code, fmds[parmIndex]);
                    } else {
                        // Load constructor parameters in appropriate order
                        loadLocalValue(code, localIndexes[parmIndex],
                                fmds[parmIndex].getObjectIdFieldTypeCode());
                        if (fmds[parmIndex].getObjectIdFieldTypeCode() == JavaTypes.OBJECT
                                && !fmds[parmIndex].getDeclaredType().isEnum()) {
                            code.checkcast().setType(ObjectId.class);
                            code.invokevirtual().setMethod(ObjectId.class, "getId", Object.class, null);
                        }
                        // if the type of this field meta data is
                        // non-primitive and non-string, be sure to cast
                        // to the appropriate type.
                        if (!clsArgs[i].isPrimitive() && !clsArgs[i].getName().equals(String.class.getName()))
                            code.checkcast().setType(clsArgs[i]);
                    }
                }
                // invoke the public constructor to create a new local id
                code.invokespecial().setMethod(oidType, "<init>", void.class, clsArgs);
                int ret = code.getNextLocalsIndex();
                code.astore().setLocal(ret);

                // swap out the app id with the new one
                code.aload().setLocal(fieldManager ? 2 : 1);
                code.checkcast().setType(ObjectId.class);
                code.aload().setLocal(ret);
                code.invokestatic().setMethod(ApplicationIds.class, "setAppId", void.class,
                        new Class[] { ObjectId.class, Object.class });
                code.vreturn();

                code.calculateMaxStack();
                code.calculateMaxLocals();
                return;
            }
        }
    }

    for (int i = 0; i < fmds.length; i++) {
        if (!fmds[i].isPrimaryKey())
            continue;
        code.aload().setLocal(id);

        name = fmds[i].getName();
        type = fmds[i].getObjectIdFieldType();
        if (isFieldAccess(fmds[i])) {
            setter = null;
            field = Reflection.findField(oidType, name, true);
            reflect = !Modifier.isPublic(field.getModifiers());
            if (reflect) {
                code.classconstant().setClass(oidType);
                code.constant().setValue(name);
                code.constant().setValue(true);
                code.invokestatic().setMethod(Reflection.class, "findField", Field.class,
                        new Class[] { Class.class, String.class, boolean.class });
            }
        } else {
            field = null;
            setter = Reflection.findSetter(oidType, name, type, true);
            reflect = !Modifier.isPublic(setter.getModifiers());
            if (reflect) {
                code.classconstant().setClass(oidType);
                code.constant().setValue(name);
                code.classconstant().setClass(type);
                code.constant().setValue(true);
                code.invokestatic().setMethod(Reflection.class, "findSetter", Method.class,
                        new Class[] { Class.class, String.class, Class.class, boolean.class });
            }
        }

        if (fieldManager) {
            code.aload().setParam(0);
            code.constant().setValue(i);
            code.iload().setLocal(inherited);
            code.iadd();
            code.invokeinterface().setMethod(getFieldSupplierMethod(type));
            if (fmds[i].getObjectIdFieldTypeCode() == JavaTypes.OBJECT && !fmds[i].getDeclaredType().isEnum()) {
                code.checkcast().setType(ObjectId.class);
                code.invokevirtual().setMethod(ObjectId.class, "getId", Object.class, null);
            }

            // if the type of this field meta data is
            // non-primitive and non-string, be sure to cast
            // to the appropriate type.
            if (!reflect && !type.isPrimitive() && !type.getName().equals(String.class.getName()))
                code.checkcast().setType(type);
        } else {
            loadManagedInstance(code, false);
            addGetManagedValueCode(code, fmds[i]);

            // get id/pk from pc instance
            if (fmds[i].getDeclaredTypeCode() == JavaTypes.PC)
                addExtractObjectIdFieldValueCode(code, fmds[i]);
        }

        if (reflect && field != null) {
            code.invokestatic().setMethod(Reflection.class, "set", void.class,
                    new Class[] { Object.class, Field.class, (type.isPrimitive()) ? type : Object.class });
        } else if (reflect) {
            code.invokestatic().setMethod(Reflection.class, "set", void.class,
                    new Class[] { Object.class, Method.class, (type.isPrimitive()) ? type : Object.class });
        } else if (field != null)
            code.putfield().setField(field);
        else
            code.invokevirtual().setMethod(setter);
    }
    code.vreturn();

    code.calculateMaxStack();
    code.calculateMaxLocals();
}

---

From source file:com.clark.func.Functions.java

/**
 * Read a static Field.//from www.  jav a  2 s  . c o  m
 * 
 * @param field
 *            to read
 * @param forceAccess
 *            whether to break scope restrictions using the
 *            <code>setAccessible</code> method.
 * @return the field value
 * @throws IllegalArgumentException
 *             if the field is null or not static
 * @throws IllegalAccessException
 *             if the field is not made accessible
 */
public static Object readStaticField(Field field, boolean forceAccess) throws IllegalAccessException {
    if (field == null) {
        throw new IllegalArgumentException("The field must not be null");
    }
    if (!Modifier.isStatic(field.getModifiers())) {
        throw new IllegalArgumentException("The field '" + field.getName() + "' is not static");
    }
    return readField(field, (Object) null, forceAccess);
}

---

From source file:com.clark.func.Functions.java

/**
 * Write a static Field.//from w  w  w.  j a va2  s. co  m
 * 
 * @param field
 *            to write
 * @param value
 *            to set
 * @param forceAccess
 *            whether to break scope restrictions using the
 *            <code>setAccessible</code> method. <code>False</code> will
 *            only match public fields.
 * @throws IllegalArgumentException
 *             if the field is null or not static
 * @throws IllegalAccessException
 *             if the field is not made accessible or is final
 */
public static void writeStaticField(Field field, Object value, boolean forceAccess)
        throws IllegalAccessException {
    if (field == null) {
        throw new IllegalArgumentException("The field must not be null");
    }
    if (!Modifier.isStatic(field.getModifiers())) {
        throw new IllegalArgumentException("The field '" + field.getName() + "' is not static");
    }
    writeField(field, (Object) null, value, forceAccess);
}

---

From source file:com.clark.func.Functions.java

/**
 * Gets an accessible <code>Field</code> by name breaking scope if
 * requested. Superclasses/interfaces will be considered.
 * /*from  www. ja v a 2 s .c o  m*/
 * @param cls
 *            the class to reflect, must not be null
 * @param fieldName
 *            the field name to obtain
 * @param forceAccess
 *            whether to break scope restrictions using the
 *            <code>setAccessible</code> method. <code>False</code> will
 *            only match public fields.
 * @return the Field object
 * @throws IllegalArgumentException
 *             if the class or field name is null
 */
public static Field getField(final Class<?> cls, String fieldName, boolean forceAccess) {
    if (cls == null) {
        throw new IllegalArgumentException("The class must not be null");
    }
    if (fieldName == null) {
        throw new IllegalArgumentException("The field name must not be null");
    }
    // Sun Java 1.3 has a bugged implementation of getField hence we write
    // the
    // code ourselves

    // getField() will return the Field object with the declaring class
    // set correctly to the class that declares the field. Thus requesting
    // the
    // field on a subclass will return the field from the superclass.
    //
    // priority order for lookup:
    // searchclass private/protected/package/public
    // superclass protected/package/public
    // private/different package blocks access to further superclasses
    // implementedinterface public

    // check up the superclass hierarchy
    for (Class<?> acls = cls; acls != null; acls = acls.getSuperclass()) {
        try {
            Field field = acls.getDeclaredField(fieldName);
            // getDeclaredField checks for non-public scopes as well
            // and it returns accurate results
            if (!Modifier.isPublic(field.getModifiers())) {
                if (forceAccess) {
                    field.setAccessible(true);
                } else {
                    continue;
                }
            }
            return field;
        } catch (NoSuchFieldException ex) {
            // ignore
        }
    }
    // check the public interface case. This must be manually searched for
    // incase there is a public supersuperclass field hidden by a
    // private/package
    // superclass field.
    Field match = null;
    for (Iterator<Class<?>> intf = getAllInterfaces(cls).iterator(); intf.hasNext();) {
        try {
            Field test = ((Class<?>) intf.next()).getField(fieldName);
            if (match != null) {
                throw new IllegalArgumentException(
                        "Reference to field " + fieldName + " is ambiguous relative to " + cls
                                + "; a matching field exists on two or more implemented interfaces.");
            }
            match = test;
        } catch (NoSuchFieldException ex) {
            // ignore
        }
    }
    return match;
}

---

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