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/* |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2001 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, if |
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* any, must include the following acknowlegement: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowlegement may appear in the software itself, |
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* if and wherever such third-party acknowlegements normally appear. |
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* |
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* 4. The names "The Jakarta Project", "Ant", and "Apache Software |
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* Foundation" must not be used to endorse or promote products derived |
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* from this software without prior written permission. For written |
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* permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache" |
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* nor may "Apache" appear in their names without prior written |
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* permission of the Apache Group. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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package org.apache.tools.ant.util.depend; |
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import java.io.*; |
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import java.util.*; |
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import de.fub.bytecode.classfile.*; |
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import de.fub.bytecode.*; |
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public class Dependencies implements Visitor { |
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private boolean verbose = false; |
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private JavaClass javaClass; |
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private ConstantPool constantPool; |
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private Set dependencies = new HashSet(); |
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public void clearDependencies() { |
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dependencies.clear(); |
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} |
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public Set getDependencies() { |
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return dependencies; |
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} |
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public void visitCode(Code obj) {} |
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public void visitCodeException(CodeException obj) {} |
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public void visitConstantClass(ConstantClass obj) { |
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if (verbose) { |
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System.out.println("visit ConstantClass"); |
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System.out.println(obj.getConstantValue(constantPool)); |
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} |
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dependencies.add("" + obj.getConstantValue(constantPool)); |
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} |
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public void visitConstantDouble(ConstantDouble obj) {} |
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public void visitConstantFieldref(ConstantFieldref obj) {} |
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public void visitConstantFloat(ConstantFloat obj) {} |
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public void visitConstantInteger(ConstantInteger obj) {} |
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public void visitConstantInterfaceMethodref(ConstantInterfaceMethodref obj) {} |
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public void visitConstantLong(ConstantLong obj) {} |
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public void visitConstantMethodref(ConstantMethodref obj) {} |
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public void visitConstantNameAndType(ConstantNameAndType obj) {} |
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public void visitConstantPool(ConstantPool obj) { |
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if (verbose) |
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System.out.println("visit ConstantPool"); |
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this.constantPool = obj; |
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// visit constants |
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for(int idx = 0; idx < constantPool.getLength(); idx++) { |
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Constant c = constantPool.getConstant(idx); |
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if (c != null) { |
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c.accept(this); |
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} |
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} |
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} |
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public void visitConstantString(ConstantString obj) {} |
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public void visitConstantUtf8(ConstantUtf8 obj) {} |
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public void visitConstantValue(ConstantValue obj) {} |
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public void visitDeprecated(Deprecated obj) {} |
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public void visitExceptionTable(ExceptionTable obj) {} |
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public void visitField(Field obj) { |
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if (verbose) { |
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System.out.println("visit Field"); |
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System.out.println(obj.getSignature()); |
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} |
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addClasses(obj.getSignature()); |
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} |
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public void visitInnerClass(InnerClass obj) {} |
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public void visitInnerClasses(InnerClasses obj) {} |
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public void visitJavaClass(JavaClass obj) { |
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if (verbose) { |
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System.out.println("visit JavaClass"); |
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} |
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this.javaClass = obj; |
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dependencies.add(javaClass.getClassName().replace('.', '/')); |
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// visit constant pool |
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javaClass.getConstantPool().accept(this); |
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// visit fields |
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Field[] fields = obj.getFields(); |
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for(int i=0; i < fields.length; i++) { |
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fields[i].accept(this); |
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} |
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// visit methods |
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Method[] methods = obj.getMethods(); |
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for(int i=0; i < methods.length; i++) { |
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methods[i].accept(this); |
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} |
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} |
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public void visitLineNumber(LineNumber obj) {} |
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public void visitLineNumberTable(LineNumberTable obj) {} |
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public void visitLocalVariable(LocalVariable obj) {} |
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public void visitLocalVariableTable(LocalVariableTable obj) {} |
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public void visitMethod(Method obj) { |
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if (verbose) { |
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System.out.println("visit Method"); |
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System.out.println(obj.getSignature()); |
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} |
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String signature = obj.getSignature(); |
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int pos = signature.indexOf(")"); |
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addClasses(signature.substring(1, pos)); |
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addClasses(signature.substring(pos + 1)); |
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} |
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public void visitSourceFile(SourceFile obj) {} |
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public void visitSynthetic(Synthetic obj) {} |
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public void visitUnknown(Unknown obj) {} |
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public void visitStackMap(StackMap obj) {} |
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public void visitStackMapEntry(StackMapEntry obj) {} |
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void addClasses(String string) { |
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StringTokenizer tokens = new StringTokenizer(string, ";"); |
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while (tokens.hasMoreTokens()) { |
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addClass(tokens.nextToken()); |
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} |
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} |
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void addClass(String string) { |
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int pos = string.indexOf('L'); |
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if (pos != -1) { |
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dependencies.add(string.substring(pos+1)); |
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} |
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} |
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public static void main(String[] args) { |
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try { |
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Dependencies visitor = new Dependencies(); |
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Set set = new TreeSet(); |
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Set newSet = new HashSet(); |
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int o=0; |
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String arg = null; |
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if ("-base".equals(args[0])) { |
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arg = args[1]; |
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if (!arg.endsWith(File.separator)) { |
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arg = arg + File.separator; |
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} |
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o=2; |
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} |
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final String base = arg; |
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for (int i=o; i < args.length; i++) { |
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String fileName = args[i].substring(0, args[i].length() - ".class".length()); |
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if (base != null && fileName.startsWith(base)) |
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fileName = fileName.substring(base.length()); |
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newSet.add(fileName); |
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} |
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set.addAll(newSet); |
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do { |
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Iterator i = newSet.iterator(); |
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while (i.hasNext()) { |
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String fileName = i.next() + ".class"; |
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if (base != null) { |
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fileName = base + fileName; |
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} |
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JavaClass javaClass = new ClassParser(fileName).parse(); |
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javaClass.accept(visitor); |
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} |
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newSet.clear(); |
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newSet.addAll(visitor.getDependencies()); |
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visitor.clearDependencies(); |
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applyFilter(newSet, new Filter() { |
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public boolean accept(Object object) { |
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String fileName = object + ".class"; |
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if (base != null) |
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fileName = base + fileName; |
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return new File(fileName).exists(); |
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} |
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}); |
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newSet.removeAll(set); |
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set.addAll(newSet); |
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} |
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while (newSet.size() > 0); |
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Iterator i = set.iterator(); |
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while (i.hasNext()) { |
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System.out.println(i.next()); |
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} |
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} |
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catch (Exception e) { |
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System.err.println(e.getMessage()); |
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e.printStackTrace(System.err); |
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} |
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} |
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public static void applyFilter(Collection collection, Filter filter) { |
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Iterator i = collection.iterator(); |
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while (i.hasNext()) { |
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Object next = i.next(); |
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if (!filter.accept(next)) { |
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i.remove(); |
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} |
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} |
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} |
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} |
Conor MacNeill