| /* |
| * 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.platform.cache.affinity; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import org.apache.ignite.binary.BinaryRawReader; |
| import org.apache.ignite.cache.affinity.AffinityFunctionContext; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.internal.binary.BinaryRawWriterEx; |
| import org.apache.ignite.internal.cluster.IgniteClusterEx; |
| import org.apache.ignite.internal.processors.affinity.GridAffinityFunctionContextImpl; |
| import org.apache.ignite.internal.processors.platform.PlatformContext; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * Affinity serialization functions. |
| */ |
| public class PlatformAffinityUtils { |
| /** |
| * Writes the affinity function context. |
| * @param affCtx Affinity context. |
| * @param writer Writer. |
| * @param ctx Platform context. |
| */ |
| public static void writeAffinityFunctionContext(AffinityFunctionContext affCtx, BinaryRawWriterEx writer, |
| PlatformContext ctx) { |
| assert affCtx != null; |
| assert writer != null; |
| assert ctx != null; |
| |
| ctx.writeNodes(writer, affCtx.currentTopologySnapshot()); |
| |
| writer.writeInt(affCtx.backups()); |
| writer.writeLong(affCtx.currentTopologyVersion().topologyVersion()); |
| writer.writeInt(affCtx.currentTopologyVersion().minorTopologyVersion()); |
| |
| ctx.writeEvent(writer, affCtx.discoveryEvent()); |
| |
| // Write previous assignment |
| List<List<ClusterNode>> prevAssignment = ((GridAffinityFunctionContextImpl)affCtx).prevAssignment(); |
| |
| if (prevAssignment == null) |
| writer.writeInt(-1); |
| else { |
| writer.writeInt(prevAssignment.size()); |
| |
| for (List<ClusterNode> part : prevAssignment) |
| ctx.writeNodes(writer, part); |
| } |
| } |
| |
| /** |
| * Writes the partition assignment to a stream. |
| * |
| * @param partitions Partitions. |
| * @param writer Writer. |
| */ |
| public static void writePartitionAssignment(Collection<List<ClusterNode>> partitions, BinaryRawWriterEx writer, |
| PlatformContext ctx) { |
| assert partitions != null; |
| assert writer != null; |
| |
| writer.writeInt(partitions.size()); |
| |
| for (List<ClusterNode> part : partitions) |
| ctx.writeNodes(writer, part); |
| } |
| |
| /** |
| * Reads the partition assignment. |
| * |
| * @param reader Reader. |
| * @param ctx Platform context. |
| * @return Partitions. |
| */ |
| @NotNull |
| public static List<List<ClusterNode>> readPartitionAssignment(BinaryRawReader reader, PlatformContext ctx) { |
| assert reader != null; |
| assert ctx != null; |
| |
| int partCnt = reader.readInt(); |
| |
| List<List<ClusterNode>> res = new ArrayList<>(partCnt); |
| |
| IgniteClusterEx cluster = ctx.kernalContext().grid().cluster(); |
| |
| for (int i = 0; i < partCnt; i++) { |
| int partSize = reader.readInt(); |
| |
| List<ClusterNode> part = new ArrayList<>(partSize); |
| |
| for (int j = 0; j < partSize; j++) |
| part.add(cluster.node(reader.readUuid())); |
| |
| res.add(part); |
| } |
| |
| return res; |
| } |
| } |