Broker.java

/**
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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.kafka;

import java.io.Serializable;

import com.google.common.base.Objects;

public class Broker implements Serializable, Comparable<Broker> {
  private static final long serialVersionUID = -6048110738442996492L;
  public String host;
  public int port;

  // for kryo compatibility
  private Broker() {

  }

  public Broker(String host, int port) {
    this.host = host;
    this.port = port;
  }

  public Broker(String host) {
    this(host, 9092);
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(host, port);
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) {
      return true;
    }
    if (obj == null || getClass() != obj.getClass()) {
      return false;
    }
    final Broker other = (Broker) obj;
    return Objects.equal(this.host, other.host) && Objects.equal(this.port, other.port);
  }

  @Override
  public String toString() {
    return host + ":" + port;
  }

  public static Broker fromString(String host) {
    Broker hp;
    String[] spec = host.split(":");
    if (spec.length == 1) {
      hp = new Broker(spec[0]);
    } else if (spec.length == 2) {
      hp = new Broker(spec[0], Integer.parseInt(spec[1]));
    } else {
      throw new IllegalArgumentException("Invalid host specification: " + host);
    }
    return hp;
  }


  @Override
  public int compareTo(Broker o) {
    if (this.host.equals(o.host)) {
      return this.port - o.port;
    } else {
      return this.host.compareTo(o.host);
    }
  }
}