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TransportCreateSnapshotAction.java
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TransportCreateSnapshotAction.java
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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.create;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.ActionListener;
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.SnapshotInfo;
import org.elasticsearch.snapshots.SnapshotsService;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Transport action for create snapshot operation
*/
public class TransportCreateSnapshotAction extends TransportMasterNodeOperationAction<CreateSnapshotRequest, CreateSnapshotResponse> {
private final SnapshotsService snapshotsService;
@Inject
public TransportCreateSnapshotAction(Settings settings, TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, SnapshotsService snapshotsService) {
super(settings, transportService, clusterService, threadPool);
this.snapshotsService = snapshotsService;
}
@Override
protected String executor() {
return ThreadPool.Names.SNAPSHOT;
}
@Override
protected String transportAction() {
return CreateSnapshotAction.NAME;
}
@Override
protected CreateSnapshotRequest newRequest() {
return new CreateSnapshotRequest();
}
@Override
protected CreateSnapshotResponse newResponse() {
return new CreateSnapshotResponse();
}
@Override
protected ClusterBlockException checkBlock(CreateSnapshotRequest request, ClusterState state) {
return state.blocks().indexBlockedException(ClusterBlockLevel.METADATA, "");
}
@Override
protected void masterOperation(final CreateSnapshotRequest request, ClusterState state, final ActionListener<CreateSnapshotResponse> listener) throws ElasticsearchException {
SnapshotsService.SnapshotRequest snapshotRequest =
new SnapshotsService.SnapshotRequest("create_snapshot[" + request.snapshot() + "]", request.snapshot(), request.repository())
.indices(request.indices())
.indicesOptions(request.indicesOptions())
.partial(request.partial())
.settings(request.settings())
.includeGlobalState(request.includeGlobalState())
.masterNodeTimeout(request.masterNodeTimeout());
snapshotsService.createSnapshot(snapshotRequest, new SnapshotsService.CreateSnapshotListener() {
@Override
public void onResponse() {
if (request.waitForCompletion()) {
snapshotsService.addListener(new SnapshotsService.SnapshotCompletionListener() {
SnapshotId snapshotId = new SnapshotId(request.repository(), request.snapshot());
@Override
public void onSnapshotCompletion(SnapshotId snapshotId, SnapshotInfo snapshot) {
if (this.snapshotId.equals(snapshotId)) {
listener.onResponse(new CreateSnapshotResponse(snapshot));
snapshotsService.removeListener(this);
}
}
@Override
public void onSnapshotFailure(SnapshotId snapshotId, Throwable t) {
if (this.snapshotId.equals(snapshotId)) {
listener.onFailure(t);
snapshotsService.removeListener(this);
}
}
});
} else {
listener.onResponse(new CreateSnapshotResponse());
}
}
@Override
public void onFailure(Throwable t) {
listener.onFailure(t);
}
});
}
}