| /** |
| * 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.storm.nimbus; |
| |
| import java.io.Serializable; |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.Map; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| import org.apache.storm.Config; |
| import org.apache.storm.utils.ObjectReader; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class NimbusInfo implements Serializable { |
| private static final long serialVersionUID = 2161446155116099333L; |
| private static final Logger LOG = LoggerFactory.getLogger(NimbusInfo.class); |
| private static final Pattern HOST_PORT_PATTERN = Pattern.compile("^(.*):([0-9]+)$"); |
| private String host; |
| private int port; |
| private boolean isLeader; |
| |
| public NimbusInfo(String host, int port, boolean isLeader) { |
| if (host == null) { |
| throw new NullPointerException("Host cannot be null"); |
| } |
| if (port < 0) { |
| throw new IllegalArgumentException("Port cannot be negative"); |
| } |
| this.host = host; |
| this.port = port; |
| this.isLeader = isLeader; |
| } |
| |
| public static NimbusInfo parse(String nimbusInfo) { |
| Matcher m = HOST_PORT_PATTERN.matcher(nimbusInfo); |
| if (!m.matches()) { |
| throw new RuntimeException("nimbusInfo should have format of host:port, invalid string " + nimbusInfo); |
| } |
| return new NimbusInfo(m.group(1), Integer.valueOf(m.group(2)), false); |
| } |
| |
| public static NimbusInfo fromConf(Map<String, Object> conf) { |
| try { |
| String host = InetAddress.getLocalHost().getCanonicalHostName(); |
| if (conf.containsKey(Config.STORM_LOCAL_HOSTNAME)) { |
| host = (String) conf.get(Config.STORM_LOCAL_HOSTNAME); |
| LOG.info("Overriding nimbus host to storm.local.hostname -> {}", host); |
| } else { |
| LOG.info("Nimbus figures out its name to {}", host); |
| } |
| |
| int port = ObjectReader.getInt(conf.get(Config.NIMBUS_THRIFT_PORT), 6627); |
| return new NimbusInfo(host, port, false); |
| |
| } catch (UnknownHostException e) { |
| throw new RuntimeException("Something wrong with network/dns config, host cant figure out its name", e); |
| } |
| } |
| |
| public String toHostPortString() { |
| return String.format("%s:%s", host, port); |
| } |
| |
| public boolean isLeader() { |
| return isLeader; |
| } |
| |
| public void setLeader(boolean isLeader) { |
| this.isLeader = isLeader; |
| } |
| |
| public int getPort() { |
| return port; |
| } |
| |
| public String getHost() { |
| return host; |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (!(o instanceof NimbusInfo)) { |
| return false; |
| } |
| |
| NimbusInfo that = (NimbusInfo) o; |
| |
| if (isLeader != that.isLeader) { |
| return false; |
| } |
| if (port != that.port) { |
| return false; |
| } |
| return host.equals(that.host); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = host.hashCode(); |
| result = 31 * result + port; |
| result = 31 * result + (isLeader ? 1 : 0); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return "NimbusInfo{" |
| + "host='" + host + '\'' |
| + ", port=" + port |
| + ", isLeader=" + isLeader |
| + '}'; |
| } |
| } |