/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.ignite.internal.client;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteLogger;
import org.apache.ignite.compute.ComputeJob;
import org.apache.ignite.compute.ComputeJobAdapter;
import org.apache.ignite.compute.ComputeJobResult;
import org.apache.ignite.compute.ComputeJobResultPolicy;
import org.apache.ignite.compute.ComputeTaskSplitAdapter;
import org.apache.ignite.internal.util.typedef.G;
import org.apache.ignite.resources.IgniteInstanceResource;
import org.apache.ignite.resources.LoggerResource;
import static org.apache.ignite.compute.ComputeJobResultPolicy.FAILOVER;
import static org.apache.ignite.compute.ComputeJobResultPolicy.WAIT;
/**
* Stop node task, applicable arguments:
* <ul>
* <li>node id (as string) to stop or</li>
* <li>node type (see start nodes task).</li>
* </ul>
*/
public class ClientStopNodeTask extends ComputeTaskSplitAdapter<String, Integer> {
/** */
@LoggerResource
private transient IgniteLogger log;
/** */
@IgniteInstanceResource
private transient Ignite ignite;
/** {@inheritDoc} */
@Override protected Collection<? extends ComputeJob> split(int gridSize, String arg) {
Collection<ComputeJob> jobs = new ArrayList<>();
for (int i = 0; i < gridSize; i++)
jobs.add(new StopJob(arg));
return jobs;
}
/** {@inheritDoc} */
@Override public ComputeJobResultPolicy result(ComputeJobResult res, List<ComputeJobResult> rcvd) {
ComputeJobResultPolicy superRes = super.result(res, rcvd);
// Deny failover.
if (superRes == FAILOVER)
superRes = WAIT;
return superRes;
}
/** {@inheritDoc} */
@Override public Integer reduce(List<ComputeJobResult> results) {
int stoppedCnt = 0;
for (ComputeJobResult res : results)
if (!res.isCancelled())
stoppedCnt+=(Integer)res.getData();
return stoppedCnt;
}
/**
* Stop node job it is executed on.
*/
private static class StopJob extends ComputeJobAdapter {
/** */
private final String gridType;
/** */
@LoggerResource
private IgniteLogger log;
/** */
@IgniteInstanceResource
private Ignite ignite;
/** */
private StopJob(String gridType) {
this.gridType = gridType;
}
/** {@inheritDoc} */
@Override public Object execute() {
log.info(">>> Stop node [nodeId=" + ignite.cluster().localNode().id() + ", name='" + ignite.name() + "']");
String prefix = ClientStartNodeTask.getConfig(gridType).getIgniteInstanceName() + " (";
if (!ignite.name().startsWith(prefix)) {
int stoppedCnt = 0;
for (Ignite g : G.allGrids())
if (g.name().startsWith(prefix)) {
try {
log.info(">>> Grid stopping [nodeId=" + g.cluster().localNode().id() +
", name='" + g.name() + "']");
G.stop(g.name(), true);
stoppedCnt++;
}
catch (IllegalStateException e) {
log.warning("Failed to stop grid.", e);
}
}
return stoppedCnt;
}
return 0;
}
}
}