/*
 * @(#)TimerUtils.java	1.1 06/02/28
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package corba.framework ;

import java.util.Map ;
import java.util.ArrayList ;

import java.io.File ;
import java.io.PrintStream ;
import java.io.PrintWriter ;

import com.sun.corba.ee.spi.orbutil.newtimer.Timer;
import com.sun.corba.ee.spi.orbutil.newtimer.Statistics;
import com.sun.corba.ee.spi.orbutil.newtimer.TimerEvent;
import com.sun.corba.ee.spi.orbutil.newtimer.Controllable;
import com.sun.corba.ee.spi.orbutil.newtimer.TimerManager;
import com.sun.corba.ee.spi.orbutil.newtimer.TimerFactory;
import com.sun.corba.ee.spi.orbutil.newtimer.TimerEventController;
import com.sun.corba.ee.spi.orbutil.newtimer.LogEventHandler;


public class TimerUtils {
    private TimerUtils() {} 

    public static void dumpLogToFile( TimerFactory tf, LogEventHandler log, 
	File file ) {
	
	PrintStream ps = null ;
	try {
	    ps = new PrintStream( file ) ;

	    // Dump the timer and timer group names to the file in numerical order
	    // Time group names are not used, but this will be compatible
	    // with the log event processor.
	    for (int ctr=0; ctr<tf.numberOfIds(); ctr++) {
		Controllable con = tf.getControllable( ctr ) ;
		ps.println( "BEGIN " + con.name() ) ;
		ps.println( "END " + con.name() ) ;
	    }

	    ps.println( "#####" ) ;

	    // Dump the timer info
	    for ( TimerEvent event : log ) {
		int id = event.timer().id() ;
		if (event.type() == TimerEvent.TimerEventType.ENTER)
		    id = 2*id ;
		else // EXIT event
		    id = 2*id + 1 ;
		ps.println( id + " " + event.time() ) ;
	    }
	} catch (Exception exc) {
	    System.out.println( "Error in dumping " + log + " to file " + file
		+ ": " + exc ) ;
	    exc.printStackTrace() ;
	} finally {
	    if (ps != null)
		ps.close() ;
	}
    }

    private static class Connector {
	public String name ;
	public long count ;
	public double min ;
	public double max ;
	public double average ;
	public double standardDeviation ;
    
	public Connector( String name, long count, double min,
	    double max, double average, double standardDeviation ) {

	    this.name = name ;
	    this.count = count ;
	    this.min = min ;
	    this.max = max ;
	    this.average = average ;
	    this.standardDeviation = standardDeviation ;
	}
    }

    private static String concat( String[] strs ) {
	StringBuilder sb = new StringBuilder() ;
	for( String str : strs ) {
	    sb.append( str ) ;
	    sb.append( '\n' ) ;
	}
	return sb.toString() ;
    }

    /** Write the Timer data in the Map to the named file with the given
     * title.
     */
    public static void writeHtmlTable( Map<Timer, Statistics> data,
	String fname, String title ) {

	// open a file and a printWriter here
	PrintWriter pw = null ;
	try {
	    pw = new PrintWriter( fname ) ;
            pw.println( 
       "<html>"+
       "<head>"+
       "  <title>" + title + "</title>"+
       "</head>"+
       "<body>"+
       "<h1>"+ title +"</h1>"+
       "<table border=1 cellpadding=2 cellspacing=2>"+
       "    <tr>"+
       "      <td>name</td>"+
       "      <td>count</td>"+
       "      <td>min</td>"+
       "      <td>max</td>"+
       "      <td>average</td>"+
       "      <td>std deviation</td>"+
       "    </tr>");

	   for (Timer timer : data.keySet() ) {
	       Statistics stats = data.get( timer ) ;
            pw.println( 
	"    <tr>"+
	"      <td>"+timer.name()+"</td>"+
	"      <td>"+stats.count()+"</td>"+
	"      <td>"+stats.min()+"</td>"+
	"      <td>"+stats.max()+"</td>"+
	"      <td>"+stats.average()+"</td>"+
	"      <td>"+stats.standardDeviation()+"</td>"+
	"    </tr>");
	   }
           pw.println(
    	"</table>"+
	"</body>"+
	"</html>");

	} catch (Exception exc) {
	    throw new RuntimeException( exc ) ;
	} finally {
	    if (pw != null)
		pw.close() ;
	}

    }
}