/*
 * Request.java
 *
 * Request data and operations 
 *
 *  Created by: Arthur L. Blais
 *              Visteon/Ford Microelectronics Inc.
 *              Colorado Springs, CO
 *
 *  Date: Fri Sep 24 08:43:13 MDT 1999
 *
 ****************************************************************************
 *
 *   Class Methods
 *
 *
 ****************************************************************************
 */
 
import java.util.Random;
import java.io.*;

public class Request {

  private long requestNumber;           // request number
  private int client;                   // client sending request
  private int server;                   // server processing request
  private long requestTime;             // clock time of the request
  private long receiveTime;             // time server receives request
  private long startTime;               // clock time of server response
  private long completeTime;            // clock time of completed request
  private long size;                    // size of the request (bytes)


  // constructor
  public Request( int c, long n ) {

    requestNumber = n;
    client = c;
    server = -1;
  }  

  /**
   * getRequestNumber
   *
   */
  long getRequestNumber() {
    return requestNumber;
  }

  /**
   * setClient
   */
  void setClient( int i ) {
     client = i;
  }

  /**
   * getClient
   */
  int getClient() {
    return client;
  }

  /**
    * setServer
    */
  void setServer( int s ) {
    server = s;
  }

  /**
    * getServer
    */
  int getServer() {
    return server;
  }

  /** 
   * setRequestTime
   */
  void setRequestTime( long t ) {
    requestTime = t;
  }

  /** 
   * getRequestTime
   */
  long getRequestTime() {
    return requestTime;
  }

  /**
    * setReceiveTime
    */
  void setReceiveTime( long t ) {
    receiveTime = t;
  }

  /**
    * getReceiveTime
    */
  long getReceiveTime() {
    return receiveTime;
  }

  /**
   * setStartTime
   */
  void setStartTime( long t ) {
    startTime = t;
  }

  /** 
   * getStartTime
   */
  long getStartTime() {
    return startTime;
  }

  /**
   * setCompleteTime
   */
  void setCompleteTime( long t ) {
    completeTime = t;
  }

  /**
   * getCompleteTime
   */
  long getCompleteTime() {
    return completeTime;
  }

  /**
   * setSize
   */
  void setSize( long s ) {
    size = s;
  }

  /**
   * getSize
   */
  long getSize() {
    return size;
  }

  /**
    * getExecutionTime
    *
    *  return the execution time of the request
    */
  long getExecutionTime() {
    return ( completeTime - startTime );
   }

  /**
    * getWaitTime
    *
    * return the time it takes for the client to start receiving
    * a response to its request
    */
  long getWaitTime() {
    return ( startTime - requestTime );
  }

  /**
    * queueWaitTime
    *
    * return the time the request spends in the queue
    */
  long queueWaitTime() {
    return ( startTime - receiveTime );
  }

  void printStats( FileWriter f ) throws IOException {

    String tab = "\t";
    String output = client + tab + requestNumber + tab + server + tab +
                    requestTime + tab + receiveTime + tab + startTime + tab + 
                    completeTime + tab + size + "\n";

    if ( f != null ) {

      f.write( output );
      f.flush();
    }
    else {
      System.out.println( output );
    }
    
  }

}