| /* |
| * 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.giraph.comm.requests; |
| |
| import org.apache.giraph.master.MasterGlobalCommHandler; |
| import org.apache.giraph.partition.PartitionStats; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * Request for sending partition stats from workers to master |
| */ |
| public class PartitionStatsRequest extends WritableRequest |
| implements MasterRequest { |
| /** Partition stats */ |
| private List<PartitionStats> partitionStats; |
| |
| /** |
| * Constructor |
| * |
| * @param partitionStats Partition stats to send |
| */ |
| public PartitionStatsRequest(Collection<PartitionStats> partitionStats) { |
| this.partitionStats = new ArrayList<>(partitionStats); |
| } |
| |
| /** Constructor for reflection */ |
| public PartitionStatsRequest() { |
| } |
| |
| @Override |
| public void doRequest(MasterGlobalCommHandler commHandler) { |
| commHandler.receivedPartitionStats(partitionStats); |
| } |
| |
| @Override |
| public RequestType getType() { |
| return RequestType.PARTITION_STATS_REQUEST; |
| } |
| |
| @Override |
| void writeRequest(DataOutput output) throws IOException { |
| output.writeInt(partitionStats.size()); |
| for (PartitionStats partitionStat : partitionStats) { |
| partitionStat.write(output); |
| } |
| } |
| |
| @Override |
| void readFieldsRequest(DataInput input) throws IOException { |
| int size = input.readInt(); |
| partitionStats = new ArrayList<>(size); |
| for (int i = 0; i < size; i++) { |
| PartitionStats newPartitionStats = new PartitionStats(); |
| newPartitionStats.readFields(input); |
| partitionStats.add(newPartitionStats); |
| } |
| } |
| } |