/*
 * $Author: bhevans $
 * $Date: 1996/05/26 22:46:21 $
 * $Source: /home/phoenix/cscstd/ijkl/jlarsen/box/RCS/Printer.java,v $
 * $Revision: 1.1 $
 * $Log: Printer.java,v $
# Revision 1.1  1996/05/26  22:46:21  bhevans
# Initial revision
#
 */

package com.nanosoft.pcm.machine;
import com.nanosoft.pcm.machine.*;
import java.util.*;
import java.io.*;

/**
 * The printer class is the dumb class which 
 * prints any class derived from Log.
 * @author $Author: bhevans $
 * @version $Revision: 1.1 $
 * @see ReportGenerator
 * @see Log
 */
public
class Printer extends Object {
   private String machineId;     // unique ALPHA-NUM identifier
   private String machineName;   // machine name / location
	private PrintStream Output;   // ouput stream
	private Queue data;           // general data storage

	/**
	 * @param ID    The machine's id number
	 * @param Name  The machine's location
	 * @param output The printstream which to print.
	 */
   public Printer(String ID, String Name, PrintStream output) {
      machineId = ID;
      machineName = Name;
		Output = output;
   }

	/**
	 * Output goes to System.err
	 * @param ID    The machine's id number
	 * @param Name  The machine's location
	 */
   public Printer(String ID, String Name) {
      machineId = ID;
      machineName = Name;
		Output = System.err;
   }

	/**
	 * Precondition: The log must be assembled correctly 

	 * Notes: destroys the log's body 

	 * This method prints any log.
	 * @param aLog The log which to print
	 */
	public void printLog (Log aLog) {
	  this.printHeader(aLog);  
	  this.printString(aLog);  
	  this.printFooter(aLog);  
	}

	/** 
	 * @param aLog the log from which to gram the header string
	 */
   private void printHeader(Log aLog) {
	// GRAB HEADER PORTION FROM LOG
      Output.println("-- ================================= --");
      Output.println("-- " + machineId + "  " + machineName);
		Output.print(aLog.headerString() );
		Output.println("-- ");
      Output.flush();
   }

	/** 
	 * Notes: destroys the log's body
	 * @param aLog the log from which to grab the body string
	 */
   private void printString(Log aLog) {
	// GRAB BODY PORTION FROM LOG
		while ( ! aLog.isEmpty() ) {
        Output.print(aLog.dataString() );
		}
   }

	/** 
	 * @param aLog the log from which to grab the footer string
	 */
   private void printFooter(Log aLog) {
	// GRAB FOOTER PORTION FROM LOG
		Output.println("-- ");
      Output.print(aLog.footerString() );
      Output.println("-- ================================= --");
      Output.flush();
   }

}