/*
* 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.gateway.blobstore;
import org.elasticsearch.ElasticSearchException;
import org.elasticsearch.common.blobstore.BlobPath;
import org.elasticsearch.common.blobstore.BlobStore;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.gateway.Gateway;
import org.elasticsearch.gateway.blobstore.BlobStoreGateway;
import org.elasticsearch.gateway.none.NoneGateway;
import org.elasticsearch.index.AbstractIndexComponent;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.gateway.IndexGateway;
import org.elasticsearch.index.settings.IndexSettings;
/**
*
*/
public abstract class BlobStoreIndexGateway extends AbstractIndexComponent implements IndexGateway {
private final BlobStoreGateway gateway;
private final BlobStore blobStore;
private final BlobPath indexPath;
protected ByteSizeValue chunkSize;
protected BlobStoreIndexGateway(Index index, @IndexSettings Settings indexSettings, Gateway gateway) {
super(index, indexSettings);
if (gateway.type().equals(NoneGateway.TYPE)) {
logger.warn("index gateway is configured, but no cluster level gateway configured, cluster level metadata will be lost on full shutdown");
}
this.gateway = (BlobStoreGateway) gateway;
this.blobStore = this.gateway.blobStore();
this.chunkSize = componentSettings.getAsBytesSize("chunk_size", this.gateway.chunkSize());
this.indexPath = this.gateway.basePath().add("indices").add(index.name());
}
@Override
public String toString() {
return type() + "://" + blobStore + "/" + indexPath;
}
public BlobStore blobStore() {
return blobStore;
}
public ByteSizeValue chunkSize() {
return this.chunkSize;
}
public BlobPath shardPath(int shardId) {
return indexPath.add(Integer.toString(shardId));
}
public static BlobPath shardPath(BlobPath basePath, String index, int shardId) {
return basePath.add("indices").add(index).add(Integer.toString(shardId));
}
@Override
public void close(boolean delete) throws ElasticSearchException {
if (delete) {
blobStore.delete(indexPath);
}
}
}