| /* |
| * 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.tests.p2p; |
| |
| import java.io.Serializable; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.UUID; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.IgniteLogger; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.compute.ComputeJob; |
| import org.apache.ignite.compute.ComputeJobAdapter; |
| import org.apache.ignite.compute.ComputeJobResult; |
| import org.apache.ignite.compute.ComputeTaskAdapter; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.resources.IgniteInstanceResource; |
| import org.apache.ignite.resources.LoggerResource; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Task for testing job stealing. |
| */ |
| public class JobStealingTask extends ComputeTaskAdapter<Object, Map<UUID, Integer>> { |
| /** Number of jobs to spawn from task. */ |
| private static final int N_JOBS = 4; |
| |
| /** Grid. */ |
| @IgniteInstanceResource |
| private Ignite ignite; |
| |
| /** Logger. */ |
| @LoggerResource |
| private IgniteLogger log; |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("ForLoopReplaceableByForEach") |
| @Override public Map<? extends ComputeJob, ClusterNode> map(List<ClusterNode> subgrid, |
| @Nullable Object arg) { |
| assert !subgrid.isEmpty(); |
| |
| Map<ComputeJobAdapter, ClusterNode> map = U.newHashMap(subgrid.size()); |
| |
| // Put all jobs onto one node. |
| for (int i = 0; i < N_JOBS; i++) |
| map.put(new GridJobStealingJob(5000L), subgrid.get(0)); |
| |
| return map; |
| } |
| |
| /** {@inheritDoc} */ |
| @SuppressWarnings("SuspiciousMethodCalls") |
| @Override public Map<UUID, Integer> reduce(List<ComputeJobResult> results) { |
| Map<UUID, Integer> ret = U.newHashMap(results.size()); |
| |
| for (ComputeJobResult res : results) { |
| if (log.isInfoEnabled()) |
| log.info("Job result: " + res.getData()); |
| |
| UUID resUuid = (UUID)res.getData(); |
| |
| ret.put(resUuid, |
| ret.containsKey(resUuid) ? ret.get(resUuid) + 1 : 1); |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * Job stealing job. |
| */ |
| private static final class GridJobStealingJob extends ComputeJobAdapter { |
| /** Injected grid. */ |
| @IgniteInstanceResource |
| private Ignite ignite; |
| |
| /** Logger. */ |
| @LoggerResource |
| private IgniteLogger log; |
| |
| /** |
| * @param arg Job argument. |
| */ |
| GridJobStealingJob(Long arg) { |
| super(arg); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Serializable execute() { |
| if (log.isInfoEnabled()) |
| log.info("Started job on node: " + ignite.cluster().localNode().id()); |
| |
| try { |
| Long sleep = argument(0); |
| |
| assert sleep != null; |
| |
| Thread.sleep(sleep); |
| } |
| catch (InterruptedException e) { |
| if (log.isInfoEnabled()) |
| log.info("Job got interrupted on node: " + ignite.cluster().localNode().id()); |
| |
| throw new IgniteException("Job got interrupted.", e); |
| } |
| finally { |
| if (log.isInfoEnabled()) |
| log.info("Job finished on node: " + ignite.cluster().localNode().id()); |
| } |
| |
| return ignite.cluster().localNode().id(); |
| } |
| } |
| } |