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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed 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.
*/
package com.android.dx.dex.file;
import com.android.dex.DexException;
import java.util.Formatter;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.atomic.AtomicInteger;
/**
* Member (field or method) refs list section of a {@code .dex} file.
*/
public abstract class MemberIdsSection extends UniformItemSection {
/** The largest addressable member is 0xffff, in the dex spec as field@CCCC or meth@CCCC. */
private static final int MAX_MEMBERS = 0x10000;
/**
* Constructs an instance. The file offset is initially unknown.
*
* @param name {@code null-ok;} the name of this instance, for annotation
* purposes
* @param file {@code non-null;} file that this instance is part of
*/
public MemberIdsSection(String name, DexFile file) {
super(name, file, 4);
}
/** {@inheritDoc} */
@Override
protected void orderItems() {
int idx = 0;
if (items().size() > MAX_MEMBERS) {
throw new DexException(tooManyMembersMessage());
}
for (Object i : items()) {
((MemberIdItem) i).setIndex(idx);
idx++;
}
}
private String tooManyMembersMessage() {
Map<String, AtomicInteger> membersByPackage = new TreeMap<String, AtomicInteger>();
for (Object member : items()) {
String packageName = ((MemberIdItem) member).getDefiningClass().getPackageName();
AtomicInteger count = membersByPackage.get(packageName);
if (count == null) {
count = new AtomicInteger();
membersByPackage.put(packageName, count);
}
count.incrementAndGet();
}
Formatter formatter = new Formatter();
String memberType = this instanceof MethodIdsSection ? "methods" : "fields";
formatter.format("Too many %s: %d; max is %d. By package:",
memberType, items().size(), MAX_MEMBERS);
for (Map.Entry<String, AtomicInteger> entry : membersByPackage.entrySet()) {
formatter.format("%n%6d %s", entry.getValue().get(), entry.getKey());
}
return formatter.toString();
}
}
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