org.elasticsearch.repositories.uri.URLRepository Maven / Gradle / Ivy
/*
* 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.repositories.uri;
import com.google.common.collect.ImmutableList;
import org.elasticsearch.cluster.metadata.SnapshotId;
import org.elasticsearch.common.blobstore.BlobPath;
import org.elasticsearch.common.blobstore.BlobStore;
import org.elasticsearch.common.blobstore.url.URLBlobStore;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.index.snapshots.IndexShardRepository;
import org.elasticsearch.repositories.RepositoryException;
import org.elasticsearch.repositories.RepositoryName;
import org.elasticsearch.repositories.RepositorySettings;
import org.elasticsearch.repositories.blobstore.BlobStoreRepository;
import org.elasticsearch.threadpool.ThreadPool;
import java.io.IOException;
import java.net.URL;
/**
* Read-only URL-based implementation of the BlobStoreRepository
*
* This repository supports the following settings
*
* - {@code url}
- URL to the root of repository. This is mandatory parameter.
* - {@code concurrent_streams}
- Number of concurrent read/write stream (per repository on each node). Defaults to 5.
*
*/
public class URLRepository extends BlobStoreRepository {
public final static String TYPE = "url";
private final URLBlobStore blobStore;
private final BlobPath basePath;
private boolean listDirectories;
/**
* Constructs new read-only URL-based repository
*
* @param name repository name
* @param repositorySettings repository settings
* @param indexShardRepository shard repository
* @throws IOException
*/
@Inject
public URLRepository(RepositoryName name, RepositorySettings repositorySettings, ThreadPool threadPool, IndexShardRepository indexShardRepository) throws IOException {
super(name.getName(), repositorySettings, indexShardRepository);
URL url;
String path = repositorySettings.settings().get("url", componentSettings.get("url"));
if (path == null) {
throw new RepositoryException(name.name(), "missing url");
} else {
url = new URL(path);
}
listDirectories = repositorySettings.settings().getAsBoolean("list_directories", componentSettings.getAsBoolean("list_directories", true));
blobStore = new URLBlobStore(componentSettings, threadPool, url);
basePath = BlobPath.cleanPath();
}
/**
* {@inheritDoc}
*/
@Override
protected BlobStore blobStore() {
return blobStore;
}
@Override
protected BlobPath basePath() {
return basePath;
}
@Override
public ImmutableList snapshots() {
if (listDirectories) {
return super.snapshots();
} else {
try {
return readSnapshotList();
} catch (IOException ex) {
throw new RepositoryException(repositoryName, "failed to get snapshot list in repository", ex);
}
}
}
}