code: /**
  Copyright (c) 2007-2013 Alysson Bessani, Eduardo Alchieri, Paulo Sousa, and the authors indicated in the @author tags
  
  Licensed 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 bftsmart.reconfiguration.views;
  
  import java.io.Serializable;
  import java.util.Arrays;
  import java.net.InetSocketAddress;
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   *
   * @author eduardo
   */
  public class View implements Serializable {
  	
  	private static final long serialVersionUID = 4052550874674512359L;
  	
  	private int id;
   	private int f;
   	private int[] processes;
   	private Map<Integer,InetSocketAddress> addresses;
  
   	public View(int id, int[] processes, int f, InetSocketAddress[] addresses){
   		this.id = id;
   		this.processes = processes;
   		this.addresses = new HashMap<Integer, InetSocketAddress>();
  
   		for(int i = 0; i < this.processes.length;i++)
   			this.addresses.put(processes[i],addresses[i]);
   		Arrays.sort(this.processes);
   		this.f = f;
   	}
  
   	public boolean isMember(int id){
   		for(int i = 0; i < this.processes.length;i++){
   			if(this.processes[i] == id){
   				return true;
   			}
   		}
   		return false;
   	}
  
  
   	public int getPos(int id){
   		for(int i = 0; i < this.processes.length;i++){
   			if(this.processes[i] == id){
   				return i;
   			}
   		}
   		return -1;
   	}
  
   	public int getId() {
   		return id;
   	}
  
   	public int getF() {
   		return f;
   	}
  
   	public int getN(){
   		return this.processes.length;
   	}
  
   	public int[] getProcesses() {
   		return processes;
   	}
  
   	@Override
   	public String toString(){
   		String ret = "ID:"+id+"; F:"+f+"; Processes:";
   		for(int i = 0; i < processes.length;i++){
   			ret = ret+processes[i]+"("+addresses.get(processes[i])+"),";
   		}
  
   		return ret;
   	}
   	public InetSocketAddress getAddress(int id) {
   		return addresses.get(id);
   	}
          
      @Override
      public boolean equals(Object obj) {
          if (obj instanceof View) {
              View v = (View) obj;
  //            return (this.addresses.equals(v.addresses) &&
              return (this.addresses.keySet().equals(v.addresses.keySet()) &&
                      Arrays.equals(this.processes, v.processes)
                      && this.id == v.id && this.f == v.f);
              
          }
          return false;
      }
      
      public int hashCode() {
          int hash = 1;
          hash = hash * 31 + this.id;
          hash = hash * 31 + this.f;
          if (this.processes != null) {
              for (int i = 0; i < this.processes.length; i++) hash = hash * 31 + this.processes[i];
          } else {
              hash = hash * 31 + 0;
          }
          hash = hash * 31 + this.addresses.hashCode();
          return hash;
      }
  }
  