io.datarouter.filesystem.snapshot.compress.CompressedBlocks Maven / Gradle / Ivy
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/*
* Copyright © 2009 HotPads ([email protected])
*
* 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 io.datarouter.filesystem.snapshot.compress;
import java.util.List;
import io.datarouter.bytes.ByteTool;
import io.datarouter.scanner.Scanner;
public class CompressedBlocks{
public final List blocks;
public final int count;
public final int totalLength;
public CompressedBlocks(List blocks){
this.blocks = blocks;
this.count = blocks.size();
this.totalLength = blocks.stream()
.mapToInt(block -> block.totalLength)
.sum();
}
public Scanner chunkScanner(){
return Scanner.of(blocks)
.map(block -> block.chunks)
.concat(Scanner::of);
}
public byte[] concat(){
return Scanner.of(blocks)
.map(block -> block.chunks)
.concat(Scanner::of)
.listTo(ByteTool::concat);
}
}