Examples with ClassFile org.hotswap.agent.javassist.bytecode.ClassFile used on opensource projects

Example 11 with ClassFile

use of org.hotswap.agent.javassist.bytecode.ClassFile in project HotswapAgent by HotswapProjects.

the class FieldInitLink method subtypeOf.

public boolean subtypeOf(CtClass clazz) throws NotFoundException {
    int i;
    String cname = clazz.getName();
    if (this == clazz || getName().equals(cname))
        return true;
    ClassFile file = getClassFile2();
    String supername = file.getSuperclass();
    if (supername != null && supername.equals(cname))
        return true;
    String[] ifs = file.getInterfaces();
    int num = ifs.length;
    for (i = 0; i < num; ++i) if (ifs[i].equals(cname))
        return true;
    if (supername != null && classPool.get(supername).subtypeOf(clazz))
        return true;
    for (i = 0; i < num; ++i) if (classPool.get(ifs[i]).subtypeOf(clazz))
        return true;
    return false;
}

Example 12 with ClassFile

use of org.hotswap.agent.javassist.bytecode.ClassFile in project HotswapAgent by HotswapProjects.

the class ClassPathAnnotationScanner method scanPlugins.

/**
 * Run the scan - search path for files containing annotation.
 *
 * @param classLoader classloader to resolve path
 * @param path        path to scan {@link org.hotswap.agent.util.scanner.Scanner#scan(ClassLoader, String, ScannerVisitor)}
 * @return list of class names containing the annotation
 * @throws IOException scan exception.
 */
public List<String> scanPlugins(ClassLoader classLoader, String path) throws IOException {
    final List<String> files = new LinkedList<String>();
    scanner.scan(classLoader, path, new ScannerVisitor() {

        @Override
        public void visit(InputStream file) throws IOException {
            ClassFile cf;
            try {
                DataInputStream dstream = new DataInputStream(file);
                cf = new ClassFile(dstream);
            } catch (IOException e) {
                throw new IOException("Stream not a valid classFile", e);
            }
            if (hasAnnotation(cf))
                files.add(cf.getName());
        }
    });
    return files;
}

Example 13 with ClassFile

use of org.hotswap.agent.javassist.bytecode.ClassFile in project HotswapAgent by HotswapProjects.

the class FactoryHelper method writeFile0.

private static void writeFile0(ClassFile cf, String directoryName) throws CannotCompileException, IOException {
    String classname = cf.getName();
    String filename = directoryName + File.separatorChar + classname.replace('.', File.separatorChar) + ".class";
    int pos = filename.lastIndexOf(File.separatorChar);
    if (pos > 0) {
        String dir = filename.substring(0, pos);
        if (!dir.equals("."))
            new File(dir).mkdirs();
    }
    DataOutputStream out = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(filename)));
    try {
        cf.write(out);
    } catch (IOException e) {
        throw e;
    } finally {
        out.close();
    }
}

Example 14 with ClassFile

use of org.hotswap.agent.javassist.bytecode.ClassFile in project HotswapAgent by HotswapProjects.

the class Dump method main.

/**
 * Main method.
 *
 * @param args           <code>args[0]</code> is the class file name.
 */
public static void main(String[] args) throws Exception {
    if (args.length != 1) {
        System.err.println("Usage: java Dump <class file name>");
        return;
    }
    DataInputStream in = new DataInputStream(new FileInputStream(args[0]));
    ClassFile w = new ClassFile(in);
    PrintWriter out = new PrintWriter(System.out, true);
    out.println("*** constant pool ***");
    w.getConstPool().print(out);
    out.println();
    out.println("*** members ***");
    ClassFilePrinter.print(w, out);
}

Example 15 with ClassFile

use of org.hotswap.agent.javassist.bytecode.ClassFile in project HotswapAgent by HotswapProjects.

the class AnnotationImpl method getDefault.

private Object getDefault(String name, Method method) throws ClassNotFoundException, RuntimeException {
    String classname = annotation.getTypeName();
    if (pool != null) {
        try {
            CtClass cc = pool.get(classname);
            ClassFile cf = cc.getClassFile2();
            MethodInfo minfo = cf.getMethod(name);
            if (minfo != null) {
                AnnotationDefaultAttribute ainfo = (AnnotationDefaultAttribute) minfo.getAttribute(AnnotationDefaultAttribute.tag);
                if (ainfo != null) {
                    MemberValue mv = ainfo.getDefaultValue();
                    return mv.getValue(classLoader, pool, method);
                }
            }
        } catch (NotFoundException e) {
            throw new RuntimeException("cannot find a class file: " + classname);
        }
    }
    throw new RuntimeException("no default value: " + classname + "." + name + "()");
}