1 /** 2 * Copyright 2007 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.tonicsystems.jarjar; 18 19 import com.tonicsystems.jarjar.util.*; 20 import java.io.*; 21 import java.util.*; 22 23 abstract public class AbstractDepHandler implements DepHandler 24 { 25 protected final int level; 26 private final Set<List<Object>> seenIt = new HashSet<List<Object>>(); 27 28 protected AbstractDepHandler(int level) { 29 this.level = level; 30 } 31 32 public void handle(PathClass from, PathClass to) throws IOException { 33 List<Object> pair; 34 if (level == LEVEL_JAR) { 35 pair = createPair(from.getClassPath(), to.getClassPath()); 36 } else { 37 pair = createPair(from.getClassName(), to.getClassName()); 38 } 39 if (!seenIt.contains(pair)) { 40 seenIt.add(pair); 41 handle(pair.get(0).toString(), pair.get(1).toString()); 42 } 43 } 44 45 abstract protected void handle(String from, String to) throws IOException; 46 47 public void handleStart() throws IOException { } 48 public void handleEnd() throws IOException { } 49 50 private static List<Object> createPair(Object o1, Object o2) { 51 List<Object> list = new ArrayList<Object>(2); 52 list.add(o1); 53 list.add(o2); 54 return list; 55 } 56 } 57
