ClassFileDumper.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.test.utility.classfile;

import java.io.IOException;
import java.io.PrintStream;

import org.eclipse.persistence.tools.workbench.utility.classfile.ClassFile;

/**
 * dump the contents of the specified class
 */
public class ClassFileDumper {

    public static void main(String[] args) throws IOException, ClassNotFoundException {
        ClassFileDumper dumper = new ClassFileDumper();
        dumper.dump("org.eclipse.persistence.internal.annotations.CBListener");
//        dumper.dump("classfile.jdk5.JDK5ClassFileTestClass");
//        dumper.dump("org.eclipse.persistence.internal.weaving.TransformerFactory$1");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$1$LocalClass1");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$1$LocalClass2");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$1");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$4");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$AnotherClass$DoubleNestedClass");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$AnotherClass");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$DeprecatedStaticInnerInterface");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$InnerClass1$NestedInnerClass");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$InnerClass1");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$InnerInterface1");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$StaticInnerClass");
//        dumper.dump("test.org.eclipse.persistence.tools.workbench.utility.classfile.ClassFileTestClass$StaticInnerInterface");
    }

    /**
     * find the byte codes for the specified class
     * and dump them to the console
     */
    public void dump(String className) throws IOException, ClassNotFoundException {
        this.dump(Class.forName(className));
    }

    /**
     * find the byte codes for the specified class
     * and dump them to the console
     */
    public void dump(Class javaClass) throws IOException {
        this.dump(ClassFile.forClass(javaClass));
    }

    /**
     * dump the specified class file to the console
     */
    public void dump(ClassFile classFile) {
        this.dump(classFile, System.out);
    }

    /**
     * dump the specified class file to the specified print stream
     */
    public void dump(ClassFile classFile, PrintStream printStream) {
        printStream.print(classFile.displayString());
        printStream.flush();
    }

}