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

Example 1 with ClassReader

use of org.apache.xbean.asm6.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.asm6.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.asm6.ClassReader in project apex-core by apache.

the class FastClassIndexReaderTest method testIndexReader.

@Test
public void testIndexReader() throws IOException {
    String javahome = System.getProperty("java.home");
    String jdkJar = javahome + "/lib/rt.jar";
    JarFile jar = new JarFile(jdkJar);
    java.util.Enumeration<JarEntry> entriesEnum = jar.entries();
    while (entriesEnum.hasMoreElements()) {
        JarEntry jarEntry = entriesEnum.nextElement();
        if (jarEntry.getName().endsWith("class")) {
            InputStream ins = jar.getInputStream(jarEntry);
            ClassReader classReader = new ClassReader(ins);
            ClassNodeType classN = new ClassNodeType();
            classReader.accept(classN, ClassReader.SKIP_CODE);
            CompactClassNode ccn = CompactUtil.compactClassNode(classN);
            ins.close();
            ins = jar.getInputStream(jarEntry);
            FastClassIndexReader fastClassIndexReader = new FastClassIndexReader(ins);
            Assert.assertEquals("The wrong class is " + classN.name, classN.name, fastClassIndexReader.getName());
            Assert.assertEquals("The wrong class is " + classN.name, classN.superName, fastClassIndexReader.getSuperName());
            Assert.assertEquals("The wrong class is " + classN.name, !ASMUtil.isAbstract(classN.access) && ASMUtil.isPublic(classN.access) && ccn.getDefaultConstructor() != null, fastClassIndexReader.isInstantiable());
            Assert.assertArrayEquals("The wrong class is " + classN.name, classN.interfaces.toArray(), fastClassIndexReader.getInterfaces());
        }
    }
}

Example 4 with ClassReader

use of org.apache.xbean.asm6.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 5 with ClassReader

use of org.apache.xbean.asm6.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;
}