| /* |
| * 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.processors.affinity; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.UUID; |
| import org.apache.ignite.IgniteException; |
| import org.apache.ignite.cache.affinity.AffinityFunction; |
| import org.apache.ignite.cache.affinity.AffinityFunctionContext; |
| import org.apache.ignite.cluster.ClusterNode; |
| |
| /** |
| * Affinity function for {@link org.apache.ignite.cache.CacheMode#LOCAL} caches. |
| */ |
| public class LocalAffinityFunction implements AffinityFunction { |
| /** */ |
| private static final long serialVersionUID = 0L; |
| |
| /** {@inheritDoc} */ |
| @Override public List<List<ClusterNode>> assignPartitions(AffinityFunctionContext affCtx) { |
| ClusterNode locNode = null; |
| |
| for (ClusterNode n : affCtx.currentTopologySnapshot()) { |
| if (n.isLocal()) { |
| locNode = n; |
| |
| break; |
| } |
| } |
| |
| if (locNode == null) |
| throw new IgniteException("Local node is not included into affinity nodes for 'LOCAL' cache"); |
| |
| List<List<ClusterNode>> res = new ArrayList<>(partitions()); |
| |
| for (int part = 0; part < partitions(); part++) |
| res.add(Collections.singletonList(locNode)); |
| |
| return Collections.unmodifiableList(res); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void reset() { |
| // No-op. |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int partitions() { |
| return 1; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int partition(Object key) { |
| return 0; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void removeNode(UUID nodeId) { |
| // No-op. |
| } |
| } |