Examples with ClassReader org.apache.xbean.asm6.ClassReader used on opensource projects

Example 11 with ClassReader

use of org.apache.xbean.asm6.ClassReader in project component-runtime by Talend.

the class PluginGenerator method createChainPlugin.

public File createChainPlugin(final File dir, final String plugin) {
    final File target = new File(dir, plugin);
    try (final JarOutputStream outputStream = new JarOutputStream(new FileOutputStream(target))) {
        final String packageName = toPackage(target.getParentFile().getParentFile().getName()).replace(".", "/");
        final String sourcePackage = "org/talend/test";
        final String fromPack = sourcePackage.replace('/', '.');
        final String toPack = packageName.replace('.', '/');
        final File root = new File(jarLocation(getClass()), sourcePackage);
        ofNullable(root.listFiles()).map(Stream::of).orElseGet(Stream::empty).filter(c -> c.getName().endsWith(".class")).forEach(clazz -> {
            try (final InputStream is = new FileInputStream(clazz)) {
                final ClassReader reader = new ClassReader(is);
                final ClassWriter writer = new ClassWriter(COMPUTE_FRAMES);
                reader.accept(new ClassRemapper(writer, new Remapper() {

                    @Override
                    public String map(final String key) {
                        return key.replace(sourcePackage, toPack).replace(fromPack, packageName);
                    }
                }), EXPAND_FRAMES);
                outputStream.putNextEntry(new JarEntry(toPack + '/' + clazz.getName()));
                outputStream.write(writer.toByteArray());
            } catch (final IOException e) {
                fail(e.getMessage());
            }
        });
    } catch (final IOException e) {
        throw new IllegalStateException(e);
    }
    return target;
}

Example 12 with ClassReader

use of org.apache.xbean.asm6.ClassReader in project component-runtime by Talend.

the class PluginGenerator method createChainPlugin.

public File createChainPlugin(final File dir, final String plugin) {
    final File target = new File(dir, plugin);
    try (final JarOutputStream outputStream = new JarOutputStream(new FileOutputStream(target))) {
        final String packageName = toPackage(target.getParentFile().getParentFile().getName()).replace(".", "/");
        final String sourcePackage = "org/talend/test";
        final String fromPack = sourcePackage.replace('/', '.');
        final String toPack = packageName.replace('.', '/');
        final File root = new File(jarLocation(getClass()), sourcePackage);
        ofNullable(root.listFiles()).map(Stream::of).orElseGet(Stream::empty).filter(c -> c.getName().endsWith(".class")).forEach(clazz -> {
            try (final InputStream is = new FileInputStream(clazz)) {
                final ClassReader reader = new ClassReader(is);
                final ClassWriter writer = new ClassWriter(COMPUTE_FRAMES);
                reader.accept(new ClassRemapper(writer, new Remapper() {

                    @Override
                    public String map(final String key) {
                        return key.replace(sourcePackage, toPack).replace(fromPack, packageName);
                    }
                }), EXPAND_FRAMES);
                outputStream.putNextEntry(new JarEntry(toPack + '/' + clazz.getName()));
                outputStream.write(writer.toByteArray());
            } catch (final IOException e) {
                fail(e.getMessage());
            }
        });
    } catch (final IOException e) {
        throw new IllegalStateException(e);
    }
    return target;
}

Example 13 with ClassReader

use of org.apache.xbean.asm6.ClassReader in project component-runtime by Talend.

the class RepositoryModelBuilderTest method createChainPlugin.

private File createChainPlugin(final File dir, final String plugin) {
    final File target = new File(dir, plugin);
    try (final JarOutputStream outputStream = new JarOutputStream(new FileOutputStream(target))) {
        final String packageName = toPackage(target.getParentFile().getParentFile().getName()).replace(".", "/");
        final String sourcePackage = "org/talend/test";
        final String fromPack = sourcePackage.replace('/', '.');
        final String toPack = packageName.replace('.', '/');
        final File root = new File(jarLocation(getClass()), sourcePackage);
        ofNullable(root.listFiles()).map(Stream::of).orElseGet(Stream::empty).filter(c -> c.getName().endsWith(".class")).forEach(clazz -> {
            try (final InputStream is = new FileInputStream(clazz)) {
                final ClassReader reader = new ClassReader(is);
                final ClassWriter writer = new ClassWriter(COMPUTE_FRAMES);
                reader.accept(new ClassRemapper(writer, new Remapper() {

                    @Override
                    public String map(final String key) {
                        return key.replace(sourcePackage, toPack).replace(fromPack, packageName);
                    }
                }), EXPAND_FRAMES);
                outputStream.putNextEntry(new JarEntry(toPack + '/' + clazz.getName()));
                outputStream.write(writer.toByteArray());
            } catch (final IOException e) {
                fail(e.getMessage());
            }
        });
    } catch (final IOException e) {
        throw new IllegalStateException(e);
    }
    return target;
}

Example 14 with ClassReader

use of org.apache.xbean.asm6.ClassReader in project jodd by oblac.

the class ProxyAspectData method getCachedAdviceClassReader.

/**
	 * Returns class reader for advice.
	 */
private ClassReader getCachedAdviceClassReader(Class<? extends ProxyAdvice> advice) {
    if (adviceClassReaderCache == null) {
        adviceClassReaderCache = new HashMap<>();
    }
    ClassReader adviceReader = adviceClassReaderCache.get(advice);
    if (adviceReader == null) {
        adviceReader = createAdviceClassReader(advice);
        adviceClassReaderCache.put(advice, adviceReader);
    }
    return adviceReader;
}

Example 15 with ClassReader

use of org.apache.xbean.asm6.ClassReader in project jodd by oblac.

the class Paramo method resolveParameters.

/**
	 * Resolves method parameters from a method or constructor.
	 * Returns an empty array when target does not contain any parameter.
	 * No caching is involved in this process, i.e. class bytecode
	 * is examined every time this method is called.
	 */
public static MethodParameter[] resolveParameters(AccessibleObject methodOrCtor) {
    Class[] paramTypes;
    Class declaringClass;
    String name;
    if (methodOrCtor instanceof Method) {
        Method method = (Method) methodOrCtor;
        paramTypes = method.getParameterTypes();
        name = method.getName();
        declaringClass = method.getDeclaringClass();
    } else {
        Constructor constructor = (Constructor) methodOrCtor;
        paramTypes = constructor.getParameterTypes();
        declaringClass = constructor.getDeclaringClass();
        name = CTOR_METHOD;
    }
    if (paramTypes.length == 0) {
        return MethodParameter.EMPTY_ARRAY;
    }
    InputStream stream;
    try {
        stream = ClassLoaderUtil.getClassAsStream(declaringClass);
    } catch (IOException ioex) {
        throw new ParamoException("Failed to read class bytes: " + declaringClass.getName(), ioex);
    }
    if (stream == null) {
        throw new ParamoException("Class not found: " + declaringClass);
    }
    try {
        ClassReader reader = new ClassReader(stream);
        MethodFinder visitor = new MethodFinder(declaringClass, name, paramTypes);
        reader.accept(visitor, 0);
        return visitor.getResolvedParameters();
    } catch (IOException ioex) {
        throw new ParamoException(ioex);
    } finally {
        StreamUtil.close(stream);
    }
}