org.elasticsearch.index.store.StoreModule Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon 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 org.elasticsearch.common.inject.AbstractModule;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.store.distributor.Distributor;
import org.elasticsearch.index.store.distributor.LeastUsedDistributor;
import org.elasticsearch.index.store.distributor.RandomWeightedDistributor;
/**
*
*/
public class StoreModule extends AbstractModule {
private final Settings settings;
private final IndexStore indexStore;
private Class distributor;
public StoreModule(Settings settings, IndexStore indexStore) {
this.indexStore = indexStore;
this.settings = settings;
}
public void setDistributor(Class distributor) {
this.distributor = distributor;
}
@Override
protected void configure() {
bind(DirectoryService.class).to(indexStore.shardDirectory()).asEagerSingleton();
bind(Store.class).asEagerSingleton();
if (distributor == null) {
distributor = loadDistributor(settings);
}
bind(Distributor.class).to(distributor).asEagerSingleton();
}
private Class loadDistributor(Settings settings) {
final Class distributor;
final String type = settings.get("index.store.distributor");
if ("least_used".equals(type)) {
distributor = LeastUsedDistributor.class;
} else if ("random".equals(type)) {
distributor = RandomWeightedDistributor.class;
} else {
distributor = settings.getAsClass("index.store.distributor", LeastUsedDistributor.class,
"org.elasticsearch.index.store.distributor.", "Distributor");
}
return distributor;
}
}