| package org.apache.maven.shared.dependency.analyzer.asm; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.apache.maven.shared.dependency.analyzer.ClassFileVisitor; |
| import org.objectweb.asm.ClassReader; |
| |
| /** |
| * |
| * |
| * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a> |
| * @version $Id$ |
| */ |
| public class DependencyClassFileVisitor |
| implements ClassFileVisitor |
| { |
| // fields ----------------------------------------------------------------- |
| |
| private final Set dependencies; |
| |
| // constructors ----------------------------------------------------------- |
| |
| public DependencyClassFileVisitor() |
| { |
| dependencies = new HashSet(); |
| } |
| |
| // ClassFileVisitor methods ----------------------------------------------- |
| |
| /* |
| * @see org.apache.maven.shared.dependency.analyzer.ClassFileVisitor#visitClass(java.lang.String, |
| * java.io.InputStream) |
| */ |
| public void visitClass( String className, InputStream in ) |
| { |
| try |
| { |
| ClassReader reader = new ClassReader( in ); |
| DependencyVisitor visitor = new DependencyVisitor(); |
| |
| reader.accept( visitor, 0 ); |
| |
| dependencies.addAll( visitor.getClasses() ); |
| } |
| catch ( IOException exception ) |
| { |
| exception.printStackTrace(); |
| } |
| catch (IndexOutOfBoundsException e) |
| { |
| //some bug inside ASM causes an IOB exception. Log it and move on? |
| //this happens when the class isn't valid. |
| System.out.println("Unable to process: "+ className); |
| } |
| } |
| |
| // public methods --------------------------------------------------------- |
| |
| public Set getDependencies() |
| { |
| return dependencies; |
| } |
| } |