Examples with JavaClass org.apache.bcel.classfile.JavaClass used on opensource projects

Example 11 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project jop by jop-devel.

the class OldAppInfo method iterate.

/**
	 * Iterate over all classes and run the visitor.
	 * 
	 * @param v
	 */
public void iterate(Visitor v) {
    Iterator<? extends OldClassInfo> it = cliMap.values().iterator();
    while (it.hasNext()) {
        JavaClass clz = it.next().clazz;
        new DescendingVisitor(clz, v).visit();
    }
}

Example 12 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project jop by jop-devel.

the class OldClassInfo method genClassInfoMap.

/**
	 * Create ClassInfos and the map from class names to ClassInfo
	 * @param jc
	 * @return
	 */
Map<String, ? extends OldClassInfo> genClassInfoMap(JavaClass[] jc, OldAppInfo ai) {
    Map<String, OldClassInfo> map = new HashMap<String, OldClassInfo>();
    for (int i = 0; i < jc.length; ++i) {
        OldClassInfo cli = newClassInfo(jc[i], ai);
        map.put(cli.clazz.getClassName(), cli);
    }
    // second iteration over all class infos for additional information setting
    CliVisitor v = newCliVisitor(map);
    Iterator<? extends OldClassInfo> it = map.values().iterator();
    while (it.hasNext()) {
        JavaClass clz = it.next().clazz;
        new DescendingVisitor(clz, v).visit();
    }
    return map;
}

Example 13 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project jop by jop-devel.

the class ConstantPoolReferenceFinder method findPoolReferences.

////////////////////////////////////////////////////////////////
// Find/replace references, member names, Pool entries
////////////////////////////////////////////////////////////////
public static Set<Integer> findPoolReferences(ClassInfo classInfo, boolean checkMembers) {
    JavaClass javaClass = classInfo.compile();
    Set<Integer> ids = findPoolReferences(classInfo, javaClass);
    if (checkMembers) {
        for (Field field : javaClass.getFields()) {
            FieldInfo fieldInfo = classInfo.getFieldInfo(field.getName());
            ids.addAll(findPoolReferences(fieldInfo, field));
        }
        for (Method method : javaClass.getMethods()) {
            MethodInfo methodInfo = classInfo.getMethodInfo(method.getName() + method.getSignature());
            ids.addAll(findPoolReferences(methodInfo, method));
        }
    }
    return ids;
}

Example 14 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project jop by jop-devel.

the class ClassWriter method write.

public void write(String writeDir) throws IOException {
    AppInfo appInfo = AppInfo.getSingleton();
    if (logger.isInfoEnabled()) {
        logger.info("Start writing classes to '" + writeDir + "' ..");
    }
    File classDir = new File(writeDir);
    if (classDir.exists()) {
        if (classDir.isFile()) {
            throw new IOException("Output directory '" + classDir + "' is a file.");
        }
    } else if (!classDir.mkdirs()) {
        throw new IOException("Could not create output directory " + classDir);
    }
    for (ClassInfo cls : appInfo.getClassInfos()) {
        if (logger.isDebugEnabled()) {
            logger.debug("Writing class: " + cls.getClassName());
        }
        JavaClass jc = cls.compile();
        String filename = classDir + File.separator + cls.getClassName().replace(".", File.separator) + ".class";
        File file = new File(filename);
        String parent = file.getParent();
        if (parent != null) {
            File pDir = new File(parent);
            //noinspection ResultOfMethodCallIgnored
            pDir.mkdirs();
        }
        BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(file));
        DataOutputStream stream = new DataOutputStream(out);
        jc.dump(stream);
        stream.close();
    }
    if (logger.isInfoEnabled()) {
        logger.info(appInfo.getClassInfos().size() + " classes written.");
    }
}

Example 15 with JavaClass

use of org.apache.bcel.classfile.JavaClass in project android-classyshark by google.

the class RootBuilder method fillFromJar.

private ClassNode fillFromJar(File file) {
    if (JayceReader.isJackAndJillArchive(file)) {
        return fillFromJayce(file);
    }
    ClassNode rootNode = new ClassNode(file.getName());
    try {
        JarFile theJar = new JarFile(file);
        Enumeration<? extends JarEntry> en = theJar.entries();
        while (en.hasMoreElements()) {
            JarEntry entry = en.nextElement();
            if (entry.getName().endsWith(".class")) {
                ClassParser cp = new ClassParser(theJar.getInputStream(entry), entry.getName());
                JavaClass jc = cp.parse();
                ClassInfo classInfo = new ClassInfo(jc.getClassName(), jc.getMethods().length);
                rootNode.add(classInfo);
            }
        }
    } catch (IOException e) {
        System.err.println("Error reading file: " + file + ". " + e.getMessage());
        e.printStackTrace(System.err);
    }
    return rootNode;
}