| /* |
| * 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.console.demo.task; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Random; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.IgniteInterruptedException; |
| 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.ComputeJobResultPolicy; |
| import org.apache.ignite.compute.ComputeTask; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Simple compute task to test task cancellation from Visor. |
| */ |
| public class DemoCancellableTask implements ComputeTask<Void, Void> { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public Map<? extends ComputeJob, ClusterNode> map(List<ClusterNode> subgrid, |
| @Nullable Void arg) throws IgniteException { |
| HashMap<ComputeJob, ClusterNode> map = U.newHashMap(1); |
| |
| map.put(new DemoCancellableJob(), subgrid.get(0)); |
| |
| return map; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public ComputeJobResultPolicy result(ComputeJobResult res, List<ComputeJobResult> rcvd) throws IgniteException { |
| return ComputeJobResultPolicy.WAIT; |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Void reduce(List<ComputeJobResult> results) throws IgniteException { |
| return null; |
| } |
| |
| /** |
| * Simple compute job to execute cancel action. |
| */ |
| private static class DemoCancellableJob extends ComputeJobAdapter { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** Random generator. */ |
| private static final Random rnd = new Random(); |
| |
| /** {@inheritDoc} */ |
| @Override public Object execute() throws IgniteException { |
| try { |
| Thread.sleep(1000 + rnd.nextInt(60000)); |
| } |
| catch (InterruptedException e) { |
| // Restore interrupt status |
| Thread.currentThread().interrupt(); |
| |
| throw new IgniteInterruptedException(e); |
| } |
| |
| return null; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(DemoCancellableJob.class, this); |
| } |
| } |
| } |