/**
* Copyright 2014 National University of Ireland, Galway.
*
* This file is part of the SIREn project. Project and contact information:
*
* https://github.com/rdelbru/SIREn
*
* 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 org.sindice.siren.index.codecs.siren10;
import java.io.IOException;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.IOContext;
import org.sindice.siren.index.codecs.block.BlockCompressor;
import org.sindice.siren.index.codecs.block.BlockDecompressor;
import org.sindice.siren.index.codecs.block.BlockIndexInput;
import org.sindice.siren.index.codecs.block.BlockIndexOutput;
/**
* This class creates {@link BlockIndexOutput} and {@link BlockIndexInput}
* for the SIREn 1.0 postings format.
*/
public class Siren10BlockStreamFactory {
private final int blockSize;
private BlockCompressor docsBlockCompressor;
private BlockDecompressor docsBlockDecompressor;
private BlockCompressor freqBlockCompressor;
private BlockDecompressor freqBlockDecompressor;
private BlockCompressor nodBlockCompressor;
private BlockDecompressor nodBlockDecompressor;
private BlockCompressor posBlockCompressor;
private BlockDecompressor posBlockDecompressor;
public Siren10BlockStreamFactory(final int blockSize) {
this.blockSize = blockSize;
}
public void setDocsBlockCompressor(final BlockCompressor compressor) {
this.docsBlockCompressor = compressor;
}
public void setDocsBlockDecompressor(final BlockDecompressor decompressor) {
this.docsBlockDecompressor = decompressor;
}
public void setFreqBlockCompressor(final BlockCompressor compressor) {
this.freqBlockCompressor = compressor;
}
public void setFreqBlockDecompressor(final BlockDecompressor decompressor) {
this.freqBlockDecompressor = decompressor;
}
public void setNodBlockCompressor(final BlockCompressor compressor) {
this.nodBlockCompressor = compressor;
}
public void setNodBlockDecompressor(final BlockDecompressor decompressor) {
this.nodBlockDecompressor = decompressor;
}
public void setPosBlockCompressor(final BlockCompressor compressor) {
this.posBlockCompressor = compressor;
}
public void setPosBlockDecompressor(final BlockDecompressor decompressor) {
this.posBlockDecompressor = decompressor;
}
public DocsFreqBlockIndexOutput createDocsFreqOutput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new DocsFreqBlockIndexOutput(
dir.createOutput(fileName, context),
blockSize,
docsBlockCompressor, freqBlockCompressor);
}
public DocsFreqBlockIndexInput openDocsFreqInput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new DocsFreqBlockIndexInput(
dir.openInput(fileName, context),
docsBlockDecompressor, freqBlockDecompressor);
}
public NodBlockIndexOutput createNodOutput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new NodBlockIndexOutput(
dir.createOutput(fileName, context),
blockSize,
nodBlockCompressor);
}
public NodBlockIndexInput openNodInput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new NodBlockIndexInput(
dir.openInput(fileName, context),
nodBlockDecompressor);
}
public PosBlockIndexOutput createPosOutput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new PosBlockIndexOutput(
dir.createOutput(fileName, context),
blockSize,
posBlockCompressor);
}
public PosBlockIndexInput openPosInput(final Directory dir,
final String fileName,
final IOContext context)
throws IOException {
return new PosBlockIndexInput(
dir.openInput(fileName, context),
posBlockDecompressor);
}
}