org.elasticsearch.action.admin.cluster.snapshots.restore.TransportRestoreSnapshotAction Maven / Gradle / Ivy
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/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
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.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,
RestoreSnapshotResponse::new,
ThreadPool.Names.SAME
);
this.restoreService = restoreService;
}
@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, listener.delegateFailure((delegatedListener, restoreCompletionResponse) -> {
if (restoreCompletionResponse.getRestoreInfo() == null && request.waitForCompletion()) {
RestoreClusterStateListener.createAndRegisterListener(
clusterService,
restoreCompletionResponse,
delegatedListener,
threadPool.getThreadContext()
);
} else {
delegatedListener.onResponse(new RestoreSnapshotResponse(restoreCompletionResponse.getRestoreInfo()));
}
}));
}
}