| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.lucene.codecs.compressing.dummy; |
| |
| import java.io.IOException; |
| |
| import org.apache.lucene.codecs.compressing.CompressingCodec; |
| import org.apache.lucene.codecs.compressing.CompressionMode; |
| import org.apache.lucene.codecs.compressing.Compressor; |
| import org.apache.lucene.codecs.compressing.Decompressor; |
| import org.apache.lucene.store.DataInput; |
| import org.apache.lucene.store.DataOutput; |
| import org.apache.lucene.util.ArrayUtil; |
| import org.apache.lucene.util.BytesRef; |
| |
| /** CompressionCodec that does not compress data, useful for testing. */ |
| // In its own package to make sure the oal.codecs.compressing classes are |
| // visible enough to let people write their own CompressionMode |
| public class DummyCompressingCodec extends CompressingCodec { |
| |
| public static final CompressionMode DUMMY = new CompressionMode() { |
| |
| @Override |
| public Compressor newCompressor() { |
| return DUMMY_COMPRESSOR; |
| } |
| |
| @Override |
| public Decompressor newDecompressor() { |
| return DUMMY_DECOMPRESSOR; |
| } |
| |
| @Override |
| public String toString() { |
| return "DUMMY"; |
| } |
| |
| }; |
| |
| private static final Decompressor DUMMY_DECOMPRESSOR = new Decompressor() { |
| |
| @Override |
| public void decompress(DataInput in, int originalLength, |
| int offset, int length, BytesRef bytes) throws IOException { |
| assert offset + length <= originalLength; |
| if (bytes.bytes.length < originalLength) { |
| bytes.bytes = new byte[ArrayUtil.oversize(originalLength, 1)]; |
| } |
| in.readBytes(bytes.bytes, 0, offset + length); |
| bytes.offset = offset; |
| bytes.length = length; |
| } |
| |
| @Override |
| public Decompressor clone() { |
| return this; |
| } |
| |
| }; |
| |
| private static final Compressor DUMMY_COMPRESSOR = new Compressor() { |
| |
| @Override |
| public void compress(byte[] bytes, int off, int len, DataOutput out) throws IOException { |
| out.writeBytes(bytes, off, len); |
| } |
| |
| @Override |
| public void close() throws IOException {}; |
| |
| }; |
| |
| /** Constructor that allows to configure the chunk size. */ |
| public DummyCompressingCodec(int chunkSize, int maxDocsPerChunk, boolean withSegmentSuffix, int blockSize) { |
| super("DummyCompressingStoredFieldsData", |
| withSegmentSuffix ? "DummyCompressingStoredFields" : "", |
| DUMMY, chunkSize, maxDocsPerChunk, blockSize); |
| } |
| |
| /** Default constructor. */ |
| public DummyCompressingCodec() { |
| this(1 << 14, 128, false, 10); |
| } |
| |
| } |