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* 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.snapshots.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.TransportMasterNodeOperationAction;
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.SnapshotId;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.snapshots.Snapshot;
import org.elasticsearch.snapshots.SnapshotInfo;
import org.elasticsearch.snapshots.SnapshotsService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Transport Action for get snapshots operation
*/
public class TransportGetSnapshotsAction extends TransportMasterNodeOperationAction<GetSnapshotsRequest, GetSnapshotsResponse> {
private final SnapshotsService snapshotsService;
@Inject
public TransportGetSnapshotsAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, SnapshotsService snapshotsService, ActionFilters actionFilters) {
super(settings, GetSnapshotsAction.NAME, transportService, clusterService, threadPool, actionFilters);
this.snapshotsService = snapshotsService;
}
@Override
protected String executor() {
return ThreadPool.Names.SNAPSHOT;
}
@Override
protected GetSnapshotsRequest newRequest() {
return new GetSnapshotsRequest();
}
@Override
protected GetSnapshotsResponse newResponse() {
return new GetSnapshotsResponse();
}
@Override
protected ClusterBlockException checkBlock(GetSnapshotsRequest request, ClusterState state) {
return state.blocks().indexBlockedException(ClusterBlockLevel.METADATA, "");
}
@Override
protected void masterOperation(final GetSnapshotsRequest request, ClusterState state, final ActionListener<GetSnapshotsResponse> listener) throws ElasticsearchException {
SnapshotId[] snapshotIds = new SnapshotId[request.snapshots().length];
for (int i = 0; i < snapshotIds.length; i++) {
snapshotIds[i] = new SnapshotId(request.repository(), request.snapshots()[i]);
}
try {
ImmutableList.Builder<SnapshotInfo> snapshotInfoBuilder = ImmutableList.builder();
if (snapshotIds.length > 0) {
for (SnapshotId snapshotId : snapshotIds) {
snapshotInfoBuilder.add(new SnapshotInfo(snapshotsService.snapshot(snapshotId)));
}
} else {
ImmutableList<Snapshot> snapshots = snapshotsService.snapshots(request.repository());
for (Snapshot snapshot : snapshots) {
snapshotInfoBuilder.add(new SnapshotInfo(snapshot));
}
}
listener.onResponse(new GetSnapshotsResponse(snapshotInfoBuilder.build()));
} catch (Throwable t) {
listener.onFailure(t);
}
}
}