org.elasticsearch.action.admin.cluster.snapshots.restore.TransportRestoreSnapshotAction Maven / Gradle / Ivy
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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.restore;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.TransportMasterNodeAction;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.cluster.block.ClusterBlockException;
import org.elasticsearch.cluster.block.ClusterBlockLevel;
import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.snapshots.RestoreService;
import org.elasticsearch.snapshots.RestoreService.RestoreCompletionResponse;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
/**
* Transport action for restore snapshot operation
*/
public class TransportRestoreSnapshotAction extends TransportMasterNodeAction {
private final RestoreService restoreService;
@Inject
public TransportRestoreSnapshotAction(TransportService transportService, ClusterService clusterService,
ThreadPool threadPool, RestoreService restoreService, ActionFilters actionFilters,
IndexNameExpressionResolver indexNameExpressionResolver) {
super(RestoreSnapshotAction.NAME, transportService, clusterService, threadPool, actionFilters,
RestoreSnapshotRequest::new,indexNameExpressionResolver);
this.restoreService = restoreService;
}
@Override
protected String executor() {
return ThreadPool.Names.SNAPSHOT;
}
@Override
protected RestoreSnapshotResponse newResponse() {
return new RestoreSnapshotResponse();
}
@Override
protected ClusterBlockException checkBlock(RestoreSnapshotRequest request, ClusterState state) {
// Restoring a snapshot might change the global state and create/change an index,
// so we need to check for METADATA_WRITE and WRITE blocks
ClusterBlockException blockException = state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
if (blockException != null) {
return blockException;
}
return state.blocks().globalBlockedException(ClusterBlockLevel.WRITE);
}
@Override
protected void masterOperation(final RestoreSnapshotRequest request, final ClusterState state,
final ActionListener listener) {
restoreService.restoreSnapshot(request, new ActionListener() {
@Override
public void onResponse(RestoreCompletionResponse restoreCompletionResponse) {
if (restoreCompletionResponse.getRestoreInfo() == null && request.waitForCompletion()) {
RestoreClusterStateListener.createAndRegisterListener(clusterService, restoreCompletionResponse, listener);
} else {
listener.onResponse(new RestoreSnapshotResponse(restoreCompletionResponse.getRestoreInfo()));
}
}
@Override
public void onFailure(Exception t) {
listener.onFailure(t);
}
});
}
}