org.elasticsearch.persistent.RemovePersistentTaskAction Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* 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.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.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.threadpool.ThreadPool;
import org.elasticsearch.transport.TransportService;
import java.io.IOException;
import java.util.Objects;
public class RemovePersistentTaskAction extends ActionType {
public static final RemovePersistentTaskAction INSTANCE = new RemovePersistentTaskAction();
public static final String NAME = "cluster:admin/persistent/remove";
private RemovePersistentTaskAction() {
super(NAME, PersistentTaskResponse::new);
}
public static class Request extends MasterNodeRequest {
private String taskId;
public Request() {}
public Request(StreamInput in) throws IOException {
super(in);
taskId = in.readString();
}
public Request(String taskId) {
this.taskId = taskId;
}
public void setTaskId(String taskId) {
this.taskId = taskId;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
out.writeString(taskId);
}
@Override
public ActionRequestValidationException validate() {
return null;
}
@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);
}
@Override
public int hashCode() {
return Objects.hash(taskId);
}
}
public static class RequestBuilder extends MasterNodeOperationRequestBuilder {
protected RequestBuilder(ElasticsearchClient client, RemovePersistentTaskAction action) {
super(client, action, new Request());
}
public final RequestBuilder setTaskId(String taskId) {
request.setTaskId(taskId);
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(RemovePersistentTaskAction.NAME, transportService, clusterService, threadPool, actionFilters,
Request::new, indexNameExpressionResolver);
this.persistentTasksClusterService = persistentTasksClusterService;
}
@Override
protected String executor() {
return ThreadPool.Names.MANAGEMENT;
}
@Override
protected PersistentTaskResponse read(StreamInput in) throws IOException {
return new PersistentTaskResponse(in);
}
@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(final Request request, ClusterState state,
final ActionListener listener) {
persistentTasksClusterService.removePersistentTask(
request.taskId, ActionListener.delegateFailure(listener,
(delegatedListener, task) -> delegatedListener.onResponse(new PersistentTaskResponse(task))));
}
}
}