| /** |
| * 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.tez.engine.api.impl; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.hadoop.io.Text; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.tez.dag.records.TezTaskAttemptID; |
| |
| |
| public class TezHeartbeatRequest implements Writable { |
| |
| private String containerIdentifier; |
| private List<TezEvent> events; |
| private TezTaskAttemptID currentTaskAttemptID; |
| private int startIndex; |
| private int maxEvents; |
| private long requestId; |
| |
| public TezHeartbeatRequest() { |
| } |
| |
| public TezHeartbeatRequest(long requestId, List<TezEvent> events, |
| String containerIdentifier, TezTaskAttemptID taskAttemptID, |
| int startIndex, int maxEvents) { |
| this.containerIdentifier = containerIdentifier; |
| this.requestId = requestId; |
| this.events = Collections.unmodifiableList(events); |
| this.startIndex = startIndex; |
| this.maxEvents = maxEvents; |
| this.currentTaskAttemptID = taskAttemptID; |
| } |
| |
| public String getContainerIdentifier() { |
| return containerIdentifier; |
| } |
| |
| public List<TezEvent> getEvents() { |
| return events; |
| } |
| |
| public int getStartIndex() { |
| return startIndex; |
| } |
| |
| public int getMaxEvents() { |
| return maxEvents; |
| } |
| |
| public long getRequestId() { |
| return requestId; |
| } |
| |
| public TezTaskAttemptID getCurrentTaskAttemptID() { |
| return currentTaskAttemptID; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| if (events != null) { |
| out.writeBoolean(true); |
| out.writeInt(events.size()); |
| for (TezEvent e : events) { |
| e.write(out); |
| } |
| } else { |
| out.writeBoolean(false); |
| } |
| if (currentTaskAttemptID != null) { |
| out.writeBoolean(true); |
| currentTaskAttemptID.write(out); |
| } else { |
| out.writeBoolean(false); |
| } |
| out.writeInt(startIndex); |
| out.writeInt(maxEvents); |
| out.writeLong(requestId); |
| Text.writeString(out, containerIdentifier); |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| if (in.readBoolean()) { |
| int eventsCount = in.readInt(); |
| events = new ArrayList<TezEvent>(eventsCount); |
| for (int i = 0; i < eventsCount; ++i) { |
| TezEvent e = new TezEvent(); |
| e.readFields(in); |
| events.add(e); |
| } |
| } |
| if (in.readBoolean()) { |
| currentTaskAttemptID = new TezTaskAttemptID(); |
| currentTaskAttemptID.readFields(in); |
| } else { |
| currentTaskAttemptID = null; |
| } |
| startIndex = in.readInt(); |
| maxEvents = in.readInt(); |
| requestId = in.readLong(); |
| containerIdentifier = Text.readString(in); |
| } |
| |
| @Override |
| public String toString() { |
| return "{ " |
| + " containerId=" + containerIdentifier |
| + ", requestId=" + requestId |
| + ", startIndex=" + startIndex |
| + ", maxEventsToGet=" + maxEvents |
| + ", taskAttemptId" + currentTaskAttemptID |
| + ", eventCount=" + (events != null ? events.size() : 0) |
| + " }"; |
| } |
| } |