| /* |
| * 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; |
| |
| import java.io.Serializable; |
| 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.cluster.ClusterTopologyException; |
| import org.apache.ignite.compute.ComputeJobAdapter; |
| import org.apache.ignite.compute.ComputeJobResult; |
| import org.apache.ignite.compute.ComputeJobResultPolicy; |
| import org.apache.ignite.compute.ComputeTaskFuture; |
| import org.apache.ignite.compute.ComputeTaskSplitAdapter; |
| import org.apache.ignite.resources.LoggerResource; |
| import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; |
| import org.apache.ignite.testframework.junits.common.GridCommonTest; |
| import org.junit.Test; |
| |
| /** |
| * Test for task failover. |
| */ |
| @GridCommonTest(group = "Kernal Self") |
| public class GridTaskFailoverSelfTest extends GridCommonAbstractTest { |
| /** Don't change it value. */ |
| public static final int SPLIT_COUNT = 2; |
| |
| /** */ |
| public GridTaskFailoverSelfTest() { |
| super(false); |
| } |
| |
| /** |
| * @throws Exception If test failed. |
| */ |
| @Test |
| public void testFailover() throws Exception { |
| Ignite ignite = startGrid(); |
| |
| try { |
| ignite.compute().localDeployTask(GridFailoverTestTask.class, GridFailoverTestTask.class.getClassLoader()); |
| |
| ComputeTaskFuture<?> fut = ignite.compute().execute(GridFailoverTestTask.class.getName(), null); |
| |
| assert fut != null; |
| |
| fut.get(); |
| |
| assert false : "Should never be reached due to exception thrown."; |
| } |
| catch (ClusterTopologyException e) { |
| info("Received correct exception: " + e); |
| } |
| finally { |
| stopGrid(); |
| } |
| } |
| |
| /** */ |
| @SuppressWarnings({"PublicInnerClass"}) |
| public static class GridFailoverTestTask extends ComputeTaskSplitAdapter<Serializable, Integer> { |
| /** */ |
| @LoggerResource |
| private IgniteLogger log; |
| |
| /** {@inheritDoc} */ |
| @Override public Collection<ComputeJobAdapter> split(int gridSize, Serializable arg) { |
| if (log.isInfoEnabled()) |
| log.info("Splitting job [job=" + this + ", gridSize=" + gridSize + ", arg=" + arg + ']'); |
| |
| Collection<ComputeJobAdapter> jobs = new ArrayList<>(SPLIT_COUNT); |
| |
| for (int i = 0; i < SPLIT_COUNT; i++) |
| jobs.add(new ComputeJobAdapter() { |
| @Override public Serializable execute() { |
| if (log.isInfoEnabled()) |
| log.info("Computing job [job=" + this + ']'); |
| |
| return null; |
| } |
| }); |
| |
| return jobs; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public ComputeJobResultPolicy result(ComputeJobResult res, List<ComputeJobResult> received) { |
| if (res.getException() != null) |
| throw res.getException(); |
| |
| return ComputeJobResultPolicy.FAILOVER; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Integer reduce(List<ComputeJobResult> results) { |
| if (log.isInfoEnabled()) |
| log.info("Reducing job [job=" + this + ", results=" + results + ']'); |
| |
| int res = 0; |
| |
| for (ComputeJobResult result : results) |
| res += (Integer)result.getData(); |
| |
| return res; |
| } |
| } |
| } |