/*
* Tencent is pleased to support the open source community by making Tinker available.
*
* Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
*
* Licensed under the BSD 3-Clause License (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/BSD-3-Clause
*
* 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.taobao.common.dexpatcher.algorithms.patch;
import com.taobao.common.dexpatcher.struct.DexPatchFile;
import com.taobao.common.dexpatcher.struct.SmallPatchedDexItemFile;
import com.taobao.dex.Dex;
import com.taobao.dex.StringData;
import com.taobao.dex.TableOfContents;
import com.taobao.dex.io.DexDataBuffer;
import com.taobao.dx.util.IndexMap;
/**
* Created by tangyinsheng on 2016/7/4.
*/
public class StringDataSectionPatchAlgorithm extends DexSectionPatchAlgorithm<StringData> {
private TableOfContents.Section patchedStringDataTocSec = null;
private TableOfContents.Section patchedStringIdTocSec = null;
private Dex.Section patchedStringDataSec = null;
private Dex.Section patchedStringIdSec = null;
public StringDataSectionPatchAlgorithm(
DexPatchFile patchFile,
Dex oldDex,
Dex patchedDex,
IndexMap oldToFullPatchedIndexMap,
IndexMap fullPatchedToSmallPatchedIndexMap,
final SmallPatchedDexItemFile extraInfoFile
) {
this(
patchFile,
oldDex,
patchedDex,
oldToFullPatchedIndexMap,
fullPatchedToSmallPatchedIndexMap,
new SmallPatchedDexItemChooser() {
@Override
public boolean isPatchedItemInSmallPatchedDex(
String oldDexSign, int patchedItemIndex
) {
return extraInfoFile.isStringInSmallPatchedDex(
oldDexSign, patchedItemIndex
);
}
}
);
}
public StringDataSectionPatchAlgorithm(
DexPatchFile patchFile,
Dex oldDex,
Dex patchedDex,
IndexMap oldToFullPatchedIndexMap,
IndexMap fullPatchedToSmallPatchedIndexMap,
SmallPatchedDexItemChooser spdItemChooser
) {
super(
patchFile,
oldDex,
oldToFullPatchedIndexMap,
fullPatchedToSmallPatchedIndexMap,
spdItemChooser
);
if (patchedDex != null) {
this.patchedStringDataTocSec = patchedDex.getTableOfContents().stringDatas;
this.patchedStringIdTocSec = patchedDex.getTableOfContents().stringIds;
this.patchedStringDataSec = patchedDex.openSection(this.patchedStringDataTocSec);
this.patchedStringIdSec = patchedDex.openSection(this.patchedStringIdTocSec);
}
}
@Override
protected TableOfContents.Section getTocSection(Dex dex) {
return dex.getTableOfContents().stringDatas;
}
@Override
protected StringData nextItem(DexDataBuffer section) {
return section.readStringData();
}
@Override
protected int getItemSize(StringData item) {
return item.byteCountInDex();
}
@Override
protected int getFullPatchSectionBase() {
if (this.patchFile != null) {
return this.patchFile.getPatchedStringDataSectionOffset();
} else {
return getTocSection(this.oldDex).off;
}
}
@Override
protected int writePatchedItem(StringData patchedItem) {
int off = this.patchedStringDataSec.writeStringData(patchedItem);
this.patchedStringIdSec.writeInt(off);
++this.patchedStringDataTocSec.size;
++this.patchedStringIdTocSec.size;
return off;
}
@Override
protected void updateIndexOrOffset(IndexMap indexMap, int oldIndex, int oldOffset, int newIndex, int newOffset) {
if (oldIndex != newIndex) {
indexMap.mapStringIds(oldIndex, newIndex);
}
}
@Override
protected void markDeletedIndexOrOffset(IndexMap indexMap, int deletedIndex, int deletedOffset) {
indexMap.markStringIdDeleted(deletedIndex);
}
}