Example usage for org.objectweb.asm.tree ClassNode ClassNode

Introduction

In this page you can find the example usage for org.objectweb.asm.tree ClassNode ClassNode.

Prototype

public ClassNode() 

Source Link

Document

Constructs a new ClassNode .

Usage

From source file:org.qkit.core.asm.adapters.AddInterfaceAdapter.java

License:Open Source License

public AddInterfaceAdapter(final ClassVisitor cv, final String... interfacesToAdd) {
    super(ASM4, new ClassNode());
    next = cv;/*from ww  w. ja  va  2s .c  o  m*/

    this.interfacesToAdd = interfacesToAdd;
}

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From source file:org.qkit.core.asm.adapters.AddMethodAdapter.java

License:Open Source License

public AddMethodAdapter(final ClassVisitor cv, final String fieldName, final String fieldDescriptor,
        final String getterName, final int varInsn, final int retInsn) {
    super(ASM4, new ClassNode());
    next = cv;//from ww  w. ja v  a  2  s  .  co  m

    this.fieldName = fieldName;
    this.getterName = getterName;
    this.varInsn = varInsn;
    this.retInsn = retInsn;
    this.fieldDescriptor = fieldDescriptor;
}

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From source file:org.qkit.core.asm.adapters.ChangeMethodNameAdapter.java

License:Open Source License

public ChangeMethodNameAdapter(final ClassVisitor cv, String targetMethodName, String wantedMethodName) {
    super(ASM4, new ClassNode());
    next = cv;/*from w w  w .j a  v a  2  s  .c o  m*/
    this.targetMethodName = targetMethodName;
    this.wantedMethodName = wantedMethodName;
}

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From source file:org.qkit.core.asm.adapters.ChangeSuperclassAdapter.java

License:Open Source License

public ChangeSuperclassAdapter(final ClassVisitor cv, final String superClass) {
    super(ASM4, new ClassNode());
    next = cv;//w  w  w. j  a  v a 2 s .c o  m

    this.superClass = superClass;
}

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From source file:org.qkit.core.updater.JarConstruct.java

License:Open Source License

/**
 * Loads all classes from the given JAR file and stores them into a HashMap for future use.
 *
 * @return True if it was successful, False if it was not.
 *///from   w w  w. ja va 2s .  c o m
@SuppressWarnings("resource")
public boolean loadClasses() {
    short count = 0;

    try {
        //Startup
        p("---------------------------------------------------------------------");
        p("--------------------      Jar Loader     ----------------------------");
        p("File: " + jarPath);

        p("JC Hash: " + getClass().hashCode());

        JarFile jf;

        //Referencing the JAR file.
        if (jarUrl != null) {

            System.out.println(jarUrlPath.toString());

            //Connect to the JAR directly online
            JarURLConnection u = (JarURLConnection) jarUrlPath.openConnection();

            //Get the JarFile representation from the JarURLConnection
            jf = u.getJarFile();

        } else {

            //If the if statement leads here, then the JAR is being run locally
            jf = new JarFile(jarPath);

        }

        //Make sure that a non-null value was passed in from either constructor
        assert jarPath != null || jarUrl != null : "Jar loader failure!";

        //Print out the size of the JarFile
        p("JarFile Size = " + jf.size());
        p("-----------------------------------------------------------------");

        //Referencing the entries.
        Enumeration<? extends JarEntry> en = jf.entries();

        //Looping through the elements (the entries).
        while (en.hasMoreElements()) {

            //The entry to work with.
            JarEntry entry = en.nextElement();

            //Grabbing solely the class files
            if (entry.getName().endsWith(".class")) {

                //Count out the entries
                ++count;

                //Print out the entry
                p("Entry " + count + ") " + entry.getName());
                p(" -> Decompressed Size = " + entry.getSize() + " Bytes" + "\n");

                //ClassReader retrieves the bytes from a given entry.
                ClassReader cr = new ClassReader(jf.getInputStream(entry));

                //Creating a new ClassNode to act as a representative of a class.
                ClassNode cn = new ClassNode();

                //Delegating all method calls and data from ClassReader to ClassNode.
                //Think of it as data from 'cr' are being entrusted or put into 'cn' (such as the class bytes).
                cr.accept(cn, 0);

                //Put it into the local package's HashMap as a ClassNode.
                loadedClassNodes.put(cn.name, cn);
            }
        }

        System.out.println(count + " classes were loaded and stored!");
        p("-----------------------------------------------------------------");
        p("-----------------------------------------------------------------");

        ConsoleLogger.printlnInfo("Load successful.");

    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }
    return true;
}

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From source file:org.rascalmpl.library.lang.java.m3.internal.JarConverter.java

License:Open Source License

@SuppressWarnings("unchecked")
public void convert(ISourceLocation jarLoc, IEvaluatorContext ctx) {

    this.loc = jarLoc;
    this.jarFile = extractJarName(jarLoc);
    this.ClassFile = extractClassName(jarLoc);
    this.LogPath = this.ClassFile.replace(".class", "");
    String packageName;//  www  .j a v a 2  s. c  o m

    // System.out.println(this.ClassFile);
    packageName = LogPath.substring(0, LogPath.lastIndexOf("/"));
    if (this.LogPath.contains("$")) {
        this.LogPath = LogPath.replace("$", "/");
    }
    try {
        ClassReader cr = new ClassReader(URIResolverRegistry.getInstance().getInputStream(jarLoc));
        ClassNode cn = new ClassNode();

        cr.accept(cn, ClassReader.SKIP_DEBUG);

        this.className = cn.name.replace("$", "/");
        classIsEnum = false;
        if ((cn.access & Opcodes.ACC_INTERFACE) != 0)
            classScheme = "java+interface";
        else if ((cn.access & Opcodes.ACC_ENUM) != 0) {
            classScheme = "java+enum";
            classIsEnum = true;
        } else
            this.classScheme = "java+class";

        this.insert(this.containment, values.sourceLocation(classScheme, "", "/" + className),
                values.sourceLocation("java+compilationUnit", "", "/jar:///" + jarFile));
        this.insert(this.containment, values.sourceLocation("java+package", "", "/" + packageName),
                values.sourceLocation("java+compilationUnit", "", "/jar:///" + jarFile));
        this.insert(this.containment, values.sourceLocation("java+compilationUnit", "", "/jar:///" + jarFile),
                values.sourceLocation("java+class", "", "/" + LogPath));

        // <|java+package:///Main|,|java+compilationUnit:///src/Main/BaseInt.java|>,

        this.insert(this.declarations, values.sourceLocation(classScheme, "", "/" + className),
                values.sourceLocation(jarFile + "!" + ClassFile));

        if (cn.superName != null && !(cn.superName.equalsIgnoreCase("java/lang/Object")
                || cn.superName.equalsIgnoreCase("java/lang/Enum"))) {
            this.insert(this.extendsRelations, values.sourceLocation(classScheme, "", "/" + className),
                    values.sourceLocation(classScheme, "", cn.superName));
        }

        for (int fs = 0; fs < 15; fs++) {
            if ((cn.access & (0x0001 << fs)) != 0) {
                IConstructor cons = mapFieldAccesCode(0x0001 << fs, CLASSE);
                if (cons != null)
                    this.insert(this.modifiers, values.sourceLocation(classScheme, "", "/" + className), cons);
            }
        }

        // Deprecated method emit type annotation dependency Deprecated.
        if ((cn.access & 0x20000) == 0x20000)
            this.insert(this.annotations, values.sourceLocation(classScheme, "", "/" + className),
                    values.sourceLocation("java+interface", "", "/java/lang/Deprecated"));

        // @implements={<|java+class:///m3startv2/viaInterface|,|java+interface:///m3startv2/m3Interface|>},
        for (int i = 0; i < cn.interfaces.size(); ++i) {
            String iface = (String) cn.interfaces.get(i);
            // System.out.println(iface);
            this.insert(this.implementsRelations, values.sourceLocation(classScheme, "", "/" + className),
                    values.sourceLocation("java+interface", "", "/" + iface));
        }

        for (int fs = 0; fs < cn.innerClasses.size(); fs++) {
            InnerClassNode a = (InnerClassNode) cn.innerClasses.get(fs);
            String parsedName = a.name.replace("$", "/");
            this.insert(this.containment, values.sourceLocation(classScheme, "", "/" + className),
                    values.sourceLocation(classScheme, "", "/" + parsedName));
        }

        emitMethods(cn.methods);
        emitFields(cn.fields);

    } catch (IOException e) {
        e.printStackTrace();
    } catch (URISyntaxException e) {
        throw new RuntimeException("Should not happen", e);
    }
}

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From source file:org.rascalmpl.library.lang.jvm.transform.Rascalify.java

License:Open Source License

@SuppressWarnings("unchecked")
public static void deserializeToDisk(ISourceLocation source, ISourceLocation destination, IString moduleName) {
    try {//from w w w . j a v  a2 s.c o m
        ClassNode cn = new ClassNode();
        ClassReader cr = new ClassReader(_resolver.getInputStream(source.getURI()));
        cr.accept(cn, 0);

        OutputStreamWriter writer = new OutputStreamWriter(
                _resolver.getOutputStream(destination.getURI(), false));
        writer.write("module " + moduleName.getValue() + "\n\n");
        writer.write("import experiments::JVMBytecode::Opcodes;\n");
        writer.write("import experiments::JVMBytecode::SerializeClass;\n\n");
        writer.write("public Class generate" + moduleName.getValue() + "Class() {\n");
        writer.write("\treturn class(" + cn.version + ", " + cn.access + ", \"" + escape(cn.name) + "\", "
                + checkNull(cn.signature) + ", " + checkNull(cn.superName) + ",\n\t\t");
        writeStrings(writer, cn.interfaces);
        writer.write(", " + checkNull(cn.sourceFile) + ", " + checkNull(cn.sourceDebug) + ", "
                + checkNull(cn.outerClass) + ", " + checkNull(cn.outerMethod) + ", "
                + checkNull(cn.outerMethodDesc) + ",\n\t\t");
        writerInnerClasses(cn, writer);
        writer.write(",\n\t\t");
        writeFields(cn, writer);
        writer.write(",\n\t\t");
        writeMethods(cn, writer);
        writer.write("\n\t);\n");
        writer.write("}");
        writer.close();
    } catch (FileNotFoundException e) {
        throw RuntimeExceptionFactory.pathNotFound(source, null, null);
    } catch (IOException e) {
        throw RuntimeExceptionFactory.io(ValueFactoryFactory.getValueFactory().string(e.getMessage()), null,
                null);
    }
}

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From source file:org.sonar.java.bytecode.loader.SquidClassLoaderTest.java

License:Open Source License

@Test
public void test_loading_class() {
    SquidClassLoader classLoader = new SquidClassLoader(
            Collections.singletonList(new File("target/test-classes")));
    String className = getClass().getCanonicalName();
    byte[] bytes = classLoader.getBytesForClass(className);
    assertThat(bytes).isNotNull();/*from   w w  w  . j  a v  a2 s .  co m*/
    ClassReader cr = new ClassReader(bytes);
    ClassNode classNode = new ClassNode();
    cr.accept(classNode, 0);
    assertThat(classNode.name).isEqualTo("org/sonar/java/bytecode/loader/SquidClassLoaderTest");
}

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From source file:org.sonar.java.bytecode.loader.SquidClassLoaderTest.java

License:Open Source License

@Test
public void test_loading_java9_class() throws Exception {
    SquidClassLoader classLoader = new SquidClassLoader(
            Collections.singletonList(new File("src/test/files/bytecode/java9/bin")));
    byte[] bytes = classLoader.getBytesForClass("org.test.Hello9");
    assertThat(bytes).isNotNull();//from ww  w  .j  a  v a2  s  .  c  o m
    ClassReader cr = new ClassReader(bytes);
    ClassNode classNode = new ClassNode();
    cr.accept(classNode, 0);
    assertThat(classNode.version).isEqualTo(Opcodes.V9);
    classLoader.close();
}

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From source file:org.sonar.java.bytecode.loader.SquidClassLoaderTest.java

License:Open Source License

@Test
public void test_loading_java10_class() throws Exception {
    SquidClassLoader classLoader = new SquidClassLoader(
            Collections.singletonList(new File("src/test/files/bytecode/java10/bin")));
    byte[] bytes = classLoader.getBytesForClass("org.foo.A");
    assertThat(bytes).isNotNull();//w  ww.  j  av a 2  s. c  om
    ClassReader cr = new ClassReader(bytes);
    ClassNode classNode = new ClassNode();
    cr.accept(classNode, 0);
    assertThat(classNode.version).isEqualTo(Opcodes.V10);
    classLoader.close();
}

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