mirror of
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73 lines
2.5 KiB
Java
Executable File
73 lines
2.5 KiB
Java
Executable File
/*
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* Copyright (C) 2022 github.com/REAndroid
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.reandroid.lib.arsc.chunk;
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import com.reandroid.lib.arsc.container.ExpandableBlockContainer;
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import com.reandroid.lib.arsc.header.HeaderBlock;
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import com.reandroid.lib.arsc.io.BlockReader;
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import java.io.IOException;
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public abstract class BaseChunk<T extends HeaderBlock> extends ExpandableBlockContainer {
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private final T mHeaderBlock;
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protected BaseChunk(T headerBlock, int initialChildesCount) {
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super(initialChildesCount+1);
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this.mHeaderBlock = headerBlock;
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addChild(headerBlock);
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}
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void setHeaderLoaded(HeaderBlock.HeaderLoaded headerLoaded){
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getHeaderBlock().setHeaderLoaded(headerLoaded);
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}
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public final T getHeaderBlock(){
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return mHeaderBlock;
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}
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@Override
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protected final void onRefreshed() {
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getHeaderBlock().refreshHeader();
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onChunkRefreshed();
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}
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protected abstract void onChunkRefreshed();
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public void onChunkLoaded(){
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}
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@Override
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public void onReadBytes(BlockReader reader) throws IOException {
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HeaderBlock headerBlock=reader.readHeaderBlock();
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checkInvalidChunk(headerBlock);
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BlockReader chunkReader = reader.create(
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reader.getPosition(),
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headerBlock.getChunkSize());
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super.onReadBytes(chunkReader);
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reader.offset(headerBlock.getChunkSize());
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chunkReader.close();
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onChunkLoaded();
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}
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void checkInvalidChunk(HeaderBlock headerBlock) throws IOException {
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ChunkType chunkType = headerBlock.getChunkType();
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if(chunkType==null || chunkType==ChunkType.NULL){
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throw new IOException("Invalid chunk: "+headerBlock);
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}
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}
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@Override
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public String toString(){
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StringBuilder builder=new StringBuilder();
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builder.append(getClass().getSimpleName());
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builder.append(": ");
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builder.append(getHeaderBlock());
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return builder.toString();
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}
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}
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