| /** |
| * 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.runtime.library.shuffle.common; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.LinkedBlockingQueue; |
| |
| import org.apache.hadoop.yarn.api.records.ApplicationId; |
| import org.apache.tez.runtime.library.common.InputAttemptIdentifier; |
| |
| /** |
| * Represents a Host with respect to the MapReduce ShuffleHandler. |
| * |
| * srcPhysicalIndex / partition is part of this since that only knows how to |
| * serve ine partition at a time. |
| */ |
| public class InputHost { |
| |
| private final String host; |
| private final int port; |
| private final int srcPhysicalIndex; |
| private final String identifier; |
| |
| private final BlockingQueue<InputAttemptIdentifier> inputs = new LinkedBlockingQueue<InputAttemptIdentifier>(); |
| |
| public static String createIdentifier(String host, int port) { |
| return (host + ":" + String.valueOf(port)); |
| } |
| |
| public InputHost(String hostName, int port, ApplicationId appId, int srcPhysicalIndex) { |
| this.host = hostName; |
| this.port = port; |
| this.srcPhysicalIndex = srcPhysicalIndex; |
| this.identifier = createIdentifier(hostName, port); |
| } |
| |
| public String getHost() { |
| return this.host; |
| } |
| |
| public int getPort() { |
| return this.port; |
| } |
| |
| public String getIdentifier() { |
| return this.identifier; |
| } |
| |
| public int getSrcPhysicalIndex() { |
| return this.srcPhysicalIndex; |
| } |
| |
| public int getNumPendingInputs() { |
| return inputs.size(); |
| } |
| |
| public void addKnownInput(InputAttemptIdentifier srcAttempt) { |
| inputs.add(srcAttempt); |
| } |
| |
| public List<InputAttemptIdentifier> clearAndGetPendingInputs() { |
| List<InputAttemptIdentifier> inputsCopy = new ArrayList<InputAttemptIdentifier>( |
| inputs.size()); |
| inputs.drainTo(inputsCopy); |
| return inputsCopy; |
| } |
| |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + ((host == null) ? 0 : host.hashCode()); |
| result = prime * result + port; |
| result = prime * result + srcPhysicalIndex; |
| return result; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) { |
| return true; |
| } |
| if (obj == null) { |
| return false; |
| } |
| if (getClass() != obj.getClass()) { |
| return false; |
| } |
| InputHost other = (InputHost) obj; |
| if (host == null) { |
| if (other.host != null) { |
| return false; |
| } |
| } else if (!host.equals(other.host)) |
| return false; |
| if (port != other.port) { |
| return false; |
| } |
| if (srcPhysicalIndex != other.srcPhysicalIndex) { |
| return false; |
| } |
| return true; |
| } |
| |
| public String toDetailedString() { |
| return "InputHost [host=" + host + ", port=" + port + ",srcPhysicalIndex=" + srcPhysicalIndex |
| + ", inputs=" + inputs + "]"; |
| } |
| |
| @Override |
| public String toString() { |
| return "InputHost [host=" + host + ", port=" + port + ", srcPhysicalIndex=" + srcPhysicalIndex |
| + "]"; |
| } |
| } |