Examples with ClassReader org.apache.xbean.asm5.ClassReader used on opensource projects

Example 1 with ClassReader

use of org.apache.xbean.asm5.ClassReader in project jodd by oblac.

the class TargetClassInfoReader method visitEnd.

/**
	 * Stores signatures for all super public methods not already overridden by target class.
	 * All this methods will be accepted for proxyfication.
	 */
@Override
public void visitEnd() {
    // prepare class annotations
    if (classAnnotations != null) {
        annotations = classAnnotations.toArray(new AnnotationInfo[classAnnotations.size()]);
        classAnnotations = null;
    }
    List<String> superList = new ArrayList<>();
    Set<String> allInterfaces = new HashSet<>();
    if (nextInterfaces != null) {
        allInterfaces.addAll(nextInterfaces);
    }
    // check all public super methods that are not overridden in superclass
    while (nextSupername != null) {
        InputStream inputStream = null;
        ClassReader cr = null;
        try {
            inputStream = ClassLoaderUtil.getClassAsStream(nextSupername, classLoader);
            cr = new ClassReader(inputStream);
        } catch (IOException ioex) {
            throw new ProxettaException("Unable to inspect super class: " + nextSupername, ioex);
        } finally {
            StreamUtil.close(inputStream);
        }
        superList.add(nextSupername);
        // remember the super class reader
        superClassReaders.add(cr);
        cr.accept(new SuperClassVisitor(), 0);
        if (cr.getInterfaces() != null) {
            Collections.addAll(allInterfaces, cr.getInterfaces());
        }
    }
    superClasses = superList.toArray(new String[superList.size()]);
    // check all interface methods that are not overridden in super-interface
    for (String next : allInterfaces) {
        InputStream inputStream = null;
        ClassReader cr = null;
        try {
            inputStream = ClassLoaderUtil.getClassAsStream(next, classLoader);
            cr = new ClassReader(inputStream);
        } catch (IOException ioex) {
            throw new ProxettaException("Unable to inspect super interface: " + next, ioex);
        } finally {
            StreamUtil.close(inputStream);
        }
        // remember the super class reader
        superClassReaders.add(cr);
        cr.accept(new SuperClassVisitor(), 0);
    }
}

Example 2 with ClassReader

use of org.apache.xbean.asm5.ClassReader in project jodd by oblac.

the class ProxettaBuilder method process.

/**
	 * Reads the target and creates destination class.
	 */
protected void process() {
    if (targetInputStream == null) {
        throw new ProxettaException("Target missing");
    }
    // create class reader
    ClassReader classReader;
    try {
        classReader = new ClassReader(targetInputStream);
    } catch (IOException ioex) {
        throw new ProxettaException("Error reading class input stream", ioex);
    }
    // reads information
    TargetClassInfoReader targetClassInfoReader = new TargetClassInfoReader(proxetta.getClassLoader());
    classReader.accept(targetClassInfoReader, 0);
    this.destClassWriter = new ClassWriter(ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
    // create proxy
    if (log.isDebugEnabled()) {
        log.debug("processing: " + classReader.getClassName());
    }
    WorkData wd = process(classReader, targetClassInfoReader);
    // store important data
    proxyApplied = wd.proxyApplied;
    proxyClassName = wd.thisReference.replace('/', '.');
}

Example 3 with ClassReader

use of org.apache.xbean.asm5.ClassReader in project tomee by apache.

the class PersistenceContextAnnFactory method addAnnotations.

public void addAnnotations(final Class c) throws OpenEJBException {
    if (!useAsm) {
        return;
    }
    if (processed.contains(c.getName())) {
        return;
    }
    try {
        final URL u = c.getResource("/" + c.getName().replace('.', '/') + ".class");
        final ClassReader r = new ClassReader(IO.read(u));
        r.accept(new PersistenceContextReader(contexts), ClassReader.SKIP_DEBUG);
    } catch (final IOException e) {
        throw new OpenEJBException("Unable to read class " + c.getName());
    }
    processed.add(c.getName());
}

Example 4 with ClassReader

use of org.apache.xbean.asm5.ClassReader in project tomee by apache.

the class TempClassLoader method isAnnotationClass.

/**
 * Fast-parse the given class bytecode to determine if it is an
 * annotation class.
 */
private static boolean isAnnotationClass(final byte[] bytes) {
    final IsAnnotationVisitor isAnnotationVisitor = new IsAnnotationVisitor();
    final ClassReader classReader = new ClassReader(bytes);
    classReader.accept(isAnnotationVisitor, ClassReader.SKIP_DEBUG);
    return isAnnotationVisitor.isAnnotation;
}

Example 5 with ClassReader

use of org.apache.xbean.asm5.ClassReader in project tomee by apache.

the class AnnotationFinder method readClassDef.

private void readClassDef(String className, final ClassVisitor visitor) {
    classes++;
    if (!className.endsWith(".class")) {
        className = className.replace('.', '/') + ".class";
    }
    try {
        final URL resource = classLoader.getResource(className);
        if (resource != null) {
            InputStream in = resource.openStream();
            in = new BufferedInputStream(in);
            try {
                final ClassReader classReader = new ClassReader(in);
                classReader.accept(visitor, ASM_FLAGS);
            } finally {
                in.close();
            }
        } else {
            new Exception("Could not load " + className).printStackTrace();
        }
    } catch (final IOException e) {
        e.printStackTrace();
    }
}