DistSimHelloWorld - Revision history

Uhermann at 11:30, 19 February 2007

2007-02-19T11:30:27Z

← Older revision		Revision as of 11:30, 19 February 2007
Line 131:		Line 131:
	} // class: hello		} // class: hello
	----		----
	This simulation expects the database configuration as standard input. ~~This~~ is the convention when working with the DistSim framework. The input is loaded with		This simulation expects the database configuration as standard input which is the convention when working with the DistSim framework. The input is loaded with
	simulationProperties.load(System.in);		simulationProperties.load(System.in);
	It then creates a DbSaver object which does the actual work:		It then creates a DbSaver object which does the actual work:

Uhermann at 11:29, 19 February 2007

2007-02-19T11:29:43Z

← Older revision		Revision as of 11:29, 19 February 2007
Line 1:		Line 1:
	This class is a minimal simulation utilizing the OR-Mapping library. See below for a short description.		This class is a minimal simulation utilizing the OR-Mapping library. See below for a short description.
			----
	//////////////////////////////////////////////////		//////////////////////////////////////////////////
	// JIST (Java In Simulation Time) Project		// JIST (Java In Simulation Time) Project
Line 129:		Line 130:

	} // class: hello		} // class: hello
			----

	This simulation expects the database configuration as standard input. This is the convention when working with the DistSim framework. The input is loaded with		This simulation expects the database configuration as standard input. This is the convention when working with the DistSim framework. The input is loaded with
	simulationProperties.load(System.in);		simulationProperties.load(System.in);

Uhermann at 11:26, 19 February 2007

2007-02-19T11:26:07Z

@@ Line 1: / Line 1: @@
  //////////////////////////////////////////////////
  // JIST (Java In Simulation Time) Project
@@ Line 55: / Line 56: @@
  				saver.save(new Result(counter, greeting), "distsim-test");
  			} else
- 				saver.save(new Result(counter, greeting), "quicksim");
+ 				saver.quickSave(new Result(counter, greeting), "quicksim");
  			int pos = random.nextInt(greeting.length());
  			greeting = greeting.replace(greeting.charAt(pos), (char) random
@@ Line 128: / Line 129: @@
  } // class: hello

Uhermann at 17:02, 16 February 2007

2007-02-16T17:02:55Z

New page

//////////////////////////////////////////////////
// JIST (Java In Simulation Time) Project
//

// Copyright (C) 2004 by Cornell University
// All rights reserved.
// Refer to LICENSE for terms and conditions of use.

package jist.minisim;

import java.io.IOException;
import java.sql.SQLException;
import java.util.Properties;
import java.util.Random;

import jist.runtime.JistAPI;
import or_mapper.util.DBSaver;

class Result {
Result(int counter, String greeting) {
this.counter = counter;
this.greeting = greeting;
}
int counter;
String greeting;
}

/**
* Hello World with distsim.
*
* @author Rimon Barr <barr+jist@cs.cornell.edu> and Ulf Hermann
* @version $Id: hello.java,v 1.7 2004/06/09 18:54:16 barr Exp $
* @since JIST1.0
*/
public class DistsimTest implements JistAPI.Entity {

private Random random;

private String greeting;

private DBSaver saver;

private int counter;

/**
* Hello event.
*/
public void myEvent() {

counter = counter + 1;

try {
if (counter < 2) {
saver.save(new Result(counter, greeting), "distsim-test");
} else
saver.save(new Result(counter, greeting), "quicksim");
int pos = random.nextInt(greeting.length());
greeting = greeting.replace(greeting.charAt(pos), (char) random
.nextInt(128));
System.out.println("distsim mutters: " + counter);
} catch (Exception e) {
e.printStackTrace();
}
if (counter < 10)
JistAPI.sleep(1);
else {
try {
saver.finalize();
} catch (Throwable e1) {
e1.printStackTrace();
}
return;
}
myEvent();

// delay execution

/*try {
Thread.sleep(500);
} catch (InterruptedException e) {
}*/

}

/**
* Program entry point: show difference between Java and JiST execution
* models with a "hello world!" example.
*
* @param args
* command-line parameters
*/
public static void main(String[] args) {
System.out.println("starting simulation.");
DistsimTest t = new DistsimTest();
t.myEvent();
}

public DistsimTest() {
try {

random = new Random();
greeting = "Hello world!";
Properties simulationProperties = new Properties();

simulationProperties.load(System.in);
saver = new DBSaver("jdbc:mysql://"
+ simulationProperties.getProperty("results.host") + "/"
+ simulationProperties.getProperty("results.database"),
simulationProperties.getProperty("results.username"),
simulationProperties.getProperty("results.password"),
Integer.parseInt(simulationProperties
.getProperty("simulationId")));

} catch (IOException e) {
e.printStackTrace();
} catch (NumberFormatException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

} // class: hello