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This OSGi bundle wraps ${pkgArtifactId} ${pkgVersion} jar file.
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.store.ram;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.store.RAMFile;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.settings.IndexSettings;
import org.elasticsearch.index.shard.ShardId;
import org.elasticsearch.index.store.DirectoryService;
import org.elasticsearch.index.store.DirectoryUtils;
import java.io.FileNotFoundException;
import java.io.IOException;
/**
*/
public final class RamDirectoryService extends DirectoryService {
@Inject
public RamDirectoryService(ShardId shardId, @IndexSettings Settings indexSettings) {
super(shardId, indexSettings);
}
@Override
public long throttleTimeInNanos() {
return 0;
}
@Override
public Directory[] build() {
return new Directory[]{new CustomRAMDirectory()};
}
@Override
public void renameFile(Directory dir, String from, String to) throws IOException {
CustomRAMDirectory leaf = DirectoryUtils.getLeaf(dir, CustomRAMDirectory.class);
assert leaf != null;
leaf.renameTo(from, to);
}
static class CustomRAMDirectory extends RAMDirectory {
public synchronized void renameTo(String from, String to) throws IOException {
RAMFile fromFile = fileMap.get(from);
if (fromFile == null)
throw new FileNotFoundException(from);
RAMFile toFile = fileMap.get(to);
if (toFile != null) {
sizeInBytes.addAndGet(-fileLength(to));
}
fileMap.put(to, fromFile);
fileMap.remove(from);
}
@Override
public String toString() {
return "ram";
}
}
}