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Elasticsearch subproject :server
/*
* 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.persistent;
import org.elasticsearch.action.ActionListener;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.action.ActionType;
import org.elasticsearch.action.support.ActionFilters;
import org.elasticsearch.action.support.master.MasterNodeOperationRequestBuilder;
import org.elasticsearch.action.support.master.MasterNodeRequest;
import org.elasticsearch.action.support.master.TransportMasterNodeAction;
import org.elasticsearch.client.internal.ElasticsearchClient;
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.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.tasks.Task;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.Objects;
import static org.elasticsearch.action.ValidateActions.addValidationError;
public class UpdatePersistentTaskStatusAction extends ActionType {
public static final UpdatePersistentTaskStatusAction INSTANCE = new UpdatePersistentTaskStatusAction();
public static final String NAME = "cluster:admin/persistent/update_status";
private UpdatePersistentTaskStatusAction() {
super(NAME, PersistentTaskResponse::new);
}
public static class Request extends MasterNodeRequest {
private String taskId;
private long allocationId = -1L;
private PersistentTaskState state;
public Request() {}
public Request(StreamInput in) throws IOException {
super(in);
taskId = in.readString();
allocationId = in.readLong();
state = in.readOptionalNamedWriteable(PersistentTaskState.class);
}
public Request(String taskId, long allocationId, PersistentTaskState state) {
this.taskId = taskId;
this.allocationId = allocationId;
this.state = state;
}
public void setTaskId(String taskId) {
this.taskId = taskId;
}
public void setAllocationId(long allocationId) {
this.allocationId = allocationId;
}
public void setState(PersistentTaskState state) {
this.state = state;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(taskId);
out.writeLong(allocationId);
out.writeOptionalNamedWriteable(state);
}
@Override
public ActionRequestValidationException validate() {
ActionRequestValidationException validationException = null;
if (this.taskId == null) {
validationException = addValidationError("task id must be specified", validationException);
}
if (this.allocationId == -1L) {
validationException = addValidationError("allocationId must be specified", validationException);
}
// We cannot really check if status has the same type as task because we don't have access
// to the task here. We will check it when we try to update the task
return validationException;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Request request = (Request) o;
return Objects.equals(taskId, request.taskId) && allocationId == request.allocationId && Objects.equals(state, request.state);
}
@Override
public int hashCode() {
return Objects.hash(taskId, allocationId, state);
}
}
public static class RequestBuilder extends MasterNodeOperationRequestBuilder<
UpdatePersistentTaskStatusAction.Request,
PersistentTaskResponse,
UpdatePersistentTaskStatusAction.RequestBuilder> {
protected RequestBuilder(ElasticsearchClient client, UpdatePersistentTaskStatusAction action) {
super(client, action, new Request());
}
public final RequestBuilder setTaskId(String taskId) {
request.setTaskId(taskId);
return this;
}
public final RequestBuilder setState(PersistentTaskState state) {
request.setState(state);
return this;
}
}
public static class TransportAction extends TransportMasterNodeAction {
private final PersistentTasksClusterService persistentTasksClusterService;
@Inject
public TransportAction(
TransportService transportService,
ClusterService clusterService,
ThreadPool threadPool,
ActionFilters actionFilters,
PersistentTasksClusterService persistentTasksClusterService,
IndexNameExpressionResolver indexNameExpressionResolver
) {
super(
UpdatePersistentTaskStatusAction.NAME,
transportService,
clusterService,
threadPool,
actionFilters,
Request::new,
indexNameExpressionResolver,
PersistentTaskResponse::new,
ThreadPool.Names.MANAGEMENT
);
this.persistentTasksClusterService = persistentTasksClusterService;
}
@Override
protected ClusterBlockException checkBlock(Request request, ClusterState state) {
// Cluster is not affected but we look up repositories in metadata
return state.blocks().globalBlockedException(ClusterBlockLevel.METADATA_WRITE);
}
@Override
protected final void masterOperation(
Task ignoredTask,
final Request request,
final ClusterState state,
final ActionListener listener
) {
persistentTasksClusterService.updatePersistentTaskState(
request.taskId,
request.allocationId,
request.state,
listener.map(PersistentTaskResponse::new)
);
}
}
}