| /* |
| * 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.platform; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Map; |
| import org.apache.ignite.Ignite; |
| 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.GridKernalContext; |
| import org.apache.ignite.internal.IgniteEx; |
| import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtLocalPartition; |
| import org.apache.ignite.internal.processors.cache.distributed.dht.topology.GridDhtPartitionTopology; |
| import org.apache.ignite.resources.IgniteInstanceResource; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Task to get Java thread names. |
| */ |
| public class PlatformIsPartitionReservedTask extends ComputeTaskAdapter<Object[], Boolean> { |
| /** {@inheritDoc} */ |
| @NotNull @Override public Map<? extends ComputeJob, ClusterNode> map(List<ClusterNode> subgrid, |
| @Nullable Object[] arg) { |
| //noinspection OptionalGetWithoutIsPresent |
| ClusterNode localNode = subgrid.stream().filter(ClusterNode::isLocal).findFirst().get(); |
| |
| return Collections.singletonMap( |
| new PlatformIsPartitionReservedJob((String)arg[0], (Integer)arg[1]), localNode); |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Boolean reduce(List<ComputeJobResult> results) { |
| return results.get(0).getData(); |
| } |
| |
| /** |
| * Job. |
| */ |
| private static class PlatformIsPartitionReservedJob extends ComputeJobAdapter { |
| /** */ |
| private final String cacheName; |
| |
| /** */ |
| private final int part; |
| |
| /** */ |
| @SuppressWarnings("unused") |
| @IgniteInstanceResource |
| private Ignite ignite; |
| |
| /** |
| * Constructor. |
| * |
| * @param cacheName Cache name. |
| * @param part Partition. |
| */ |
| public PlatformIsPartitionReservedJob(String cacheName, Integer part) { |
| this.cacheName = cacheName; |
| this.part = part; |
| } |
| |
| /** {@inheritDoc} */ |
| @Nullable @Override public Boolean execute() { |
| GridKernalContext ctx = ((IgniteEx)ignite).context(); |
| |
| GridDhtPartitionTopology top = ctx.cache().cache(cacheName).context().topology(); |
| |
| GridDhtLocalPartition locPart = top.localPartition(part, top.readyTopologyVersion(), false); |
| |
| assert locPart != null; |
| |
| return locPart.reservations() > 0; |
| } |
| } |
| } |