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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;
import com.google.common.collect.ImmutableList;
import org.apache.lucene.store.MMapDirectory;
import org.apache.lucene.util.Constants;
import org.elasticsearch.common.inject.AbstractModule;
import org.elasticsearch.common.inject.Module;
import org.elasticsearch.common.inject.Modules;
import org.elasticsearch.common.inject.SpawnModules;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.store.fs.DefaultFsIndexStoreModule;
import org.elasticsearch.index.store.fs.MmapFsIndexStoreModule;
import org.elasticsearch.index.store.fs.NioFsIndexStoreModule;
import org.elasticsearch.index.store.fs.SimpleFsIndexStoreModule;
import org.elasticsearch.index.store.ram.RamIndexStoreModule;
/**
*
*/
public class IndexStoreModule extends AbstractModule implements SpawnModules {
private final Settings settings;
public static enum Type {
NIOFS {
public boolean match(String setting) {
return super.match(setting) || "nio_fs".equalsIgnoreCase(setting);
}
},
MMAPFS {
public boolean match(String setting) {
return super.match(setting) || "mmap_fs".equalsIgnoreCase(setting);
}
},
SIMPLEFS {
public boolean match(String setting) {
return super.match(setting) || "simple_fs".equalsIgnoreCase(setting);
}
},
RAM {
public boolean fsStore() {
return false;
}
},
MEMORY {
public boolean fsStore() {
return false;
}
},
FS,
DEFAULT,;
/**
* Returns true iff this store type is a filesystem based store.
*/
public boolean fsStore() {
return true;
}
/**
* Returns true iff this settings matches the type.
*/
public boolean match(String setting) {
return this.name().equalsIgnoreCase(setting);
}
}
public IndexStoreModule(Settings settings) {
this.settings = settings;
}
@Override
public Iterable spawnModules() {
Class indexStoreModule = NioFsIndexStoreModule.class;
if ((Constants.WINDOWS || Constants.SUN_OS || Constants.LINUX)
&& Constants.JRE_IS_64BIT && MMapDirectory.UNMAP_SUPPORTED) {
if (Constants.WINDOWS) {
indexStoreModule = MmapFsIndexStoreModule.class;
} else {
// on linux and friends we only mmap dedicated files
indexStoreModule = DefaultFsIndexStoreModule.class;
}
} else if (Constants.WINDOWS) {
indexStoreModule = SimpleFsIndexStoreModule.class;
}
String storeType = settings.get("index.store.type");
if (Type.RAM.name().equalsIgnoreCase(storeType)) {
indexStoreModule = RamIndexStoreModule.class;
} else if (Type.MEMORY.match(storeType)) {
indexStoreModule = RamIndexStoreModule.class;
} else if (Type.FS.match(storeType)) {
// nothing to set here ... (we default to fs)
} else if (Type.SIMPLEFS.match(storeType)) {
indexStoreModule = SimpleFsIndexStoreModule.class;
} else if (Type.NIOFS.match(storeType)) {
indexStoreModule = NioFsIndexStoreModule.class;
} else if (Type.MMAPFS.match(storeType)) {
indexStoreModule = MmapFsIndexStoreModule.class;
} else if (Type.DEFAULT.match(storeType)) {
indexStoreModule = DefaultFsIndexStoreModule.class;
} else if (storeType != null) {
indexStoreModule = settings.getAsClass("index.store.type", indexStoreModule, "org.elasticsearch.index.store.", "IndexStoreModule");
}
return ImmutableList.of(Modules.createModule(indexStoreModule, settings));
}
@Override
protected void configure() {
}
}