| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| package org.apache.tools.ant.taskdefs.optional.sitraka.bytecode; |
| |
| import java.io.*; |
| |
| import org.apache.tools.ant.taskdefs.optional.depend.constantpool.ConstantPool; |
| import org.apache.tools.ant.taskdefs.optional.depend.constantpool.ClassCPInfo; |
| import org.apache.tools.ant.taskdefs.optional.sitraka.bytecode.attributes.*; |
| |
| |
| /** |
| * Object representing a class. |
| * |
| * @author <a href="sbailliez@imediation.com">Stephane Bailliez</a> |
| */ |
| public class ClassFile { |
| |
| protected ConstantPool constantPool; |
| |
| protected InterfaceList interfaces; |
| |
| protected FieldInfoList fields; |
| |
| protected MethodInfoList methods; |
| |
| protected String sourceDir; |
| |
| protected String sourceFile; |
| |
| protected int access_flags; |
| |
| protected int this_class; |
| |
| protected int super_class; |
| |
| protected boolean isSynthetic; |
| |
| protected boolean isDeprecated; |
| |
| public ClassFile(InputStream is) throws IOException { |
| DataInputStream dis = new DataInputStream(is); |
| constantPool = new ConstantPool(); |
| |
| int magic = dis.readInt(); // 0xCAFEBABE |
| int minor = dis.readShort(); |
| int major = dis.readShort(); |
| |
| constantPool.read(dis); |
| constantPool.resolve(); |
| |
| access_flags = dis.readShort(); |
| this_class = dis.readShort(); |
| super_class = dis.readShort(); |
| |
| interfaces = new InterfaceList(constantPool); |
| interfaces.read(dis); |
| //System.out.println(interfaces.toString()); |
| |
| fields = new FieldInfoList(constantPool); |
| fields.read(dis); |
| //System.out.println(fields.toString()); |
| |
| methods = new MethodInfoList(constantPool); |
| methods.read(dis); |
| //System.out.println(methods.toString()); |
| |
| AttributeInfoList attributes = new AttributeInfoList(constantPool); |
| attributes.read(dis); |
| SourceFile srcFile = (SourceFile)attributes.getAttribute(AttributeInfo.SOURCE_FILE); |
| if (srcFile != null){ |
| sourceFile = srcFile.getValue(); |
| } |
| SourceDir srcDir = (SourceDir)attributes.getAttribute(AttributeInfo.SOURCE_DIR); |
| if (srcDir != null){ |
| sourceDir = srcDir.getValue(); |
| } |
| isSynthetic = attributes.getAttribute(AttributeInfo.SYNTHETIC) != null; |
| isDeprecated = attributes.getAttribute(AttributeInfo.DEPRECATED) != null; |
| } |
| |
| public int getAccess(){ |
| return access_flags; |
| } |
| public InterfaceList getInterfaces(){ |
| return interfaces; |
| } |
| public String getSourceFile(){ |
| return sourceFile; |
| } |
| public String getSourceDir(){ |
| return sourceDir; |
| } |
| public boolean isSynthetic() { |
| return isSynthetic; |
| } |
| public boolean isDeprecated() { |
| return isDeprecated; |
| } |
| public MethodInfoList getMethods(){ |
| return methods; |
| } |
| public FieldInfoList getFields(){ |
| return fields; |
| } |
| public String getSuperName(){ |
| return Utils.getUTF8Value(constantPool, super_class); |
| } |
| public String getFullName(){ |
| return ((ClassCPInfo)constantPool.getEntry(this_class)).getClassName().replace('/','.'); |
| } |
| public String getName(){ |
| String name = getFullName(); |
| int pos = name.lastIndexOf('.'); |
| if (pos == -1){ |
| return ""; |
| } |
| return name.substring(pos + 1); |
| } |
| public String getPackage(){ |
| String name = getFullName(); |
| int pos = name.lastIndexOf('.'); |
| if (pos == -1){ |
| return ""; |
| } |
| return name.substring(0, pos); |
| } |
| |
| /** dirty test method, move it into a testcase */ |
| public static void main(String[] args) throws Exception { |
| System.out.println("loading classfile..."); |
| InputStream is = ClassLoader.getSystemResourceAsStream("java/util/Vector.class"); |
| ClassFile clazzfile = new ClassFile(is); |
| System.out.println("Class name: " + clazzfile.getName()); |
| MethodInfoList methods = clazzfile.getMethods(); |
| for (int i = 0; i < methods.length(); i++){ |
| MethodInfo method = methods.getMethod(i); |
| System.out.println("Method: " + method.getFullSignature()); |
| System.out.println("line: " + method.getNumberOfLines()); |
| LineNumberTable lnt = method.getCode().getLineNumberTable(); |
| } |
| } |
| |
| } |
| |
| |
| |
| |
| |