/*
* 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.action.admin.cluster.repositories.get;
import com.google.common.collect.ImmutableList;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.TransportMasterNodeReadOperationAction;
import org.elasticsearch.cluster.ClusterService;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.MetaData;
import org.elasticsearch.cluster.metadata.RepositoriesMetaData;
import org.elasticsearch.cluster.metadata.RepositoryMetaData;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.repositories.RepositoryMissingException;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Transport action for get repositories operation
*/
public class TransportGetRepositoriesAction extends TransportMasterNodeReadOperationAction<GetRepositoriesRequest, GetRepositoriesResponse> {
@Inject
public TransportGetRepositoriesAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, ActionFilters actionFilters) {
super(settings, GetRepositoriesAction.NAME, transportService, clusterService, threadPool, actionFilters);
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected GetRepositoriesRequest newRequest() {
return new GetRepositoriesRequest();
}
@Override
protected GetRepositoriesResponse newResponse() {
return new GetRepositoriesResponse();
}
@Override
protected ClusterBlockException checkBlock(GetRepositoriesRequest request, ClusterState state) {
return state.blocks().indexBlockedException(ClusterBlockLevel.METADATA, "");
}
@Override
protected void masterOperation(final GetRepositoriesRequest request, ClusterState state, final ActionListener<GetRepositoriesResponse> listener) throws ElasticsearchException {
MetaData metaData = state.metaData();
RepositoriesMetaData repositories = metaData.custom(RepositoriesMetaData.TYPE);
if (request.repositories().length == 0 || (request.repositories().length == 1 && "_all".equals(request.repositories()[0]))) {
if (repositories != null) {
listener.onResponse(new GetRepositoriesResponse(repositories.repositories()));
} else {
listener.onResponse(new GetRepositoriesResponse(ImmutableList.<RepositoryMetaData>of()));
}
} else {
if (repositories != null) {
ImmutableList.Builder<RepositoryMetaData> repositoryListBuilder = ImmutableList.builder();
for (String repository : request.repositories()) {
RepositoryMetaData repositoryMetaData = repositories.repository(repository);
if (repositoryMetaData == null) {
listener.onFailure(new RepositoryMissingException(repository));
return;
}
repositoryListBuilder.add(repositoryMetaData);
}
listener.onResponse(new GetRepositoriesResponse(repositoryListBuilder.build()));
} else {
listener.onFailure(new RepositoryMissingException(request.repositories()[0]));
}
}
}
}