MemberIdsSection.java revision 4dfe64e94f153ccd8db56bea7b8cdfb02e5bba08
1/* 2 * Copyright (C) 2007 The Android Open Source Project 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 17package com.android.dx.dex.file; 18 19import com.android.dx.util.DexException; 20import java.util.Formatter; 21import java.util.Map; 22import java.util.TreeMap; 23import java.util.concurrent.atomic.AtomicInteger; 24 25/** 26 * Member (field or method) refs list section of a {@code .dex} file. 27 */ 28public abstract class MemberIdsSection extends UniformItemSection { 29 /** The largest addressable member is 0xffff, in the dex spec as field@CCCC or meth@CCCC. */ 30 private static final int MAX_MEMBERS = 0x10000; 31 32 /** 33 * Constructs an instance. The file offset is initially unknown. 34 * 35 * @param name {@code null-ok;} the name of this instance, for annotation 36 * purposes 37 * @param file {@code non-null;} file that this instance is part of 38 */ 39 public MemberIdsSection(String name, DexFile file) { 40 super(name, file, 4); 41 } 42 43 /** {@inheritDoc} */ 44 @Override 45 protected void orderItems() { 46 int idx = 0; 47 48 if (items().size() > MAX_MEMBERS) { 49 throw new DexException(tooManyMembersMessage()); 50 } 51 52 for (Object i : items()) { 53 ((MemberIdItem) i).setIndex(idx); 54 idx++; 55 } 56 } 57 58 private String tooManyMembersMessage() { 59 Map<String, AtomicInteger> membersByPackage = new TreeMap<String, AtomicInteger>(); 60 for (Object member : items()) { 61 String packageName = ((MemberIdItem) member).getDefiningClass().getPackageName(); 62 AtomicInteger count = membersByPackage.get(packageName); 63 if (count == null) { 64 count = new AtomicInteger(); 65 membersByPackage.put(packageName, count); 66 } 67 count.incrementAndGet(); 68 } 69 70 Formatter formatter = new Formatter(); 71 String memberType = this instanceof MethodIdsSection ? "methods" : "fields"; 72 formatter.format("Too many %s: %d; max is %d. By package:", 73 memberType, items().size(), MAX_MEMBERS); 74 for (Map.Entry<String, AtomicInteger> entry : membersByPackage.entrySet()) { 75 formatter.format("%n%6d %s", entry.getValue().get(), entry.getKey()); 76 } 77 return formatter.toString(); 78 } 79} 80