Example usage for java.util Stack empty

Introduction

In this page you can find the example usage for java.util Stack empty.

Prototype

public boolean empty() 

Source Link

Document

Tests if this stack is empty.

Usage

From source file:MainClass.java

public static void main(String args[]) {
    Stack s = new Stack();
    s.push("A");//from ww  w. j a v a 2 s .  com
    s.push("B");
    s.push("C");

    System.out.println(s.pop());
    System.out.println(s.empty());
}

---

From source file:Main.java

public static void main(String args[]) {
    Stack<String> s = new Stack<String>();
    s.push("A");//  w w  w . j av  a2 s. com
    s.push("B");
    s.push("C");

    System.out.println(s.pop());
    System.out.println(s.empty());
}

---

From source file:Main.java

public static void main(String args[]) {

    Stack st = new Stack();

    // populating stack
    st.push("Java");
    st.push("Source");
    st.push("from java2s.com");

    System.out.println("Is stack empty: " + st.empty());
}

---

From source file:ExceptionalTest.java

public static void main(String[] args) {
    int i = 0;//  w  ww  . j a v a  2 s. co m
    int ntry = 10000000;
    Stack<String> s = new Stack<String>();
    long s1;
    long s2;

    // test a stack for emptiness ntry times
    System.out.println("Testing for empty stack");
    s1 = new Date().getTime();
    for (i = 0; i <= ntry; i++)
        if (!s.empty())
            s.pop();
    s2 = new Date().getTime();
    System.out.println((s2 - s1) + " milliseconds");

    // pop an empty stack ntry times and catch the resulting exception
    System.out.println("Catching EmptyStackException");
    s1 = new Date().getTime();
    for (i = 0; i <= ntry; i++) {
        try {
            s.pop();
        } catch (EmptyStackException e) {
        }
    }
    s2 = new Date().getTime();
    System.out.println((s2 - s1) + " milliseconds");
}

---

From source file:StringReverse.java

public static void main(String[] argv) {
    //+//w  w w  .ja  v  a2s .c o m
    String s = "Father Charles Goes Down And Ends Battle";

    // Put it in the stack frontwards
    Stack myStack = new Stack();
    StringTokenizer st = new StringTokenizer(s);
    while (st.hasMoreTokens())
        myStack.push(st.nextElement());

    // Print the stack backwards
    System.out.print('"' + s + '"' + " backwards by word is:\n\t\"");
    while (!myStack.empty()) {
        System.out.print(myStack.pop());
        System.out.print(' ');
    }
    System.out.println('"');
    //-
}

---

From source file:Stacks.java

public static void main(String[] args) {
    Stack stack = new Stack();
    for (int i = 0; i < 10; i++)
        stack.push(new Integer(i));
    System.out.println("stack = " + stack);
    // Treating a stack as a Vector:
    stack.addElement("The last line");
    System.out.println("element 5 = " + stack.elementAt(5));
    System.out.println("popping elements:");
    while (!stack.empty())
        System.out.println(stack.pop());
}

---

From source file:StackExample.java

public static void main(String args[]) {
    Stack s = new Stack();
    s.push("Java");
    s.push("Source");
    s.push("and");

    System.out.println("Next: " + s.peek());
    s.push("Support");
    System.out.println(s.pop());/*  w  w w .j a  v  a 2  s  .  c om*/
    s.push(".");
    int count = s.search("Java");
    while (count != -1 && count > 1) {
        s.pop();
        count--;
    }
    System.out.println(s.pop());
    System.out.println(s.empty());
}

---

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

public static void main(String[] args) throws IOException, ClassNotFoundException {
    main_completed = false;/* ww  w  . j av a  2  s  .c o m*/

    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:Main.java

/**
 * Sorts objects in the given collection into different types by Class.
 * @param <E> the element type//  w  w w .j  a  v  a2  s  .  c  o m
 * @param objects a Collection of objects
 * @param inherit if true, objects are put into all their class's superclasses as well, except
 * Object - the original Collection can be used in that case
 * @return a Map from Class to List of objects in that class
 */
public static <E> Map<Class<?>, List<E>> groupByClass(Collection<E> objects, boolean inherit) {
    Map<Class<?>, List<E>> retval = new HashMap<Class<?>, List<E>>();
    for (E o : objects) {
        Class<?> c = o.getClass();
        if (inherit) {
            Set<Class<?>> done = new HashSet<Class<?>>();
            done.add(Object.class);
            Stack<Class<?>> todo = new Stack<Class<?>>();
            todo.push(c);
            while (!todo.empty()) {
                c = todo.pop();
                if ((c != null) && !done.contains(c)) {
                    done.add(c);
                    List<E> l = retval.get(c);
                    if (l == null) {
                        l = new ArrayList<E>();
                        retval.put(c, l);
                    }
                    l.add(o);
                    todo.push(c.getSuperclass());
                    Class<?>[] classes = c.getInterfaces();
                    for (int i = 0; i < classes.length; i++) {
                        todo.push(classes[i]);
                    }
                }
            }
        } else {
            List<E> l = retval.get(c);
            if (l == null) {
                l = new ArrayList<E>();
                retval.put(c, l);
            }
            l.add(o);
        }
    }
    return retval;
}

---

From source file:Main.java

/**
 * Check of the balanced tags sup/sub/*from  w  w w.  j  a  va 2 s. co  m*/
 * 
 * @param snippet
 * @return <code>true</code> if balanced, <code>false</code> otherwise
 */
public static boolean isBalanced(String snippet) {
    if (snippet == null)
        return true; // ????

    Stack<String> s = new Stack<String>();
    Matcher m = SUBS_OR_SUPS.matcher(snippet);
    while (m.find()) {
        String tag = m.group(1);
        if (tag.toLowerCase().startsWith("su")) {
            s.push(tag);
        } else {
            if (s.empty() || !tag.equals("/" + s.pop())) {
                return false;
            }
        }
    }

    return s.empty();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• »