itcs3146-project/memoryManagement.java
2012-09-25 21:29:00 -04:00

83 lines
2.8 KiB
Java

/*Memory Management Program
* Used to test the algorithm and print out results.
*/
import java.io.File;
//import java.io.PrintWriter;
import java.util.Random;
import java.util.Scanner;
import java.util.StringTokenizer;
public class memoryManagement{
public static void main(String args[])throws Exception{
final int JOBAMOUNT = 1000;
File file = new File("null");
Scanner keyboard = new Scanner(System.in);
Scanner fileScan;
StringTokenizer token;
//PrintWriter output = new PrintWriter(new File("out.txt"));
Random rand = new Random();
String read = null;
int jobLength = 0, tempSize, tempTime;
long timeStart, timeEnd;
//******Add your algorithm class here******//
//Algorithm alg = new Algorithm();
Job[] jobs = new Job[JOBAMOUNT];
//Gets a file name, else creates five random jobs
do{
System.out.println("Type filename to load jobs from a file or just press enter for random jobs");
read = keyboard.nextLine();
file = new File(read + ".txt");
if(!read.equals("") && !file.exists())
System.out.println("File not found, try again");
}while(!read.equals("") && !file.exists());
//Create random jobs or read from the file and create jobs
if(read.equals("")){
System.out.print("Creating "+JOBAMOUNT+" random jobs...");
jobLength = JOBAMOUNT;
for(int i = 0; i < jobLength; i++)
jobs[i] = new Job(rand.nextInt(1000)+1,rand.nextInt(100)+1); //Job(size, time)
System.out.println("complete");
}
else{
System.out.print("File found, reading file...");
fileScan = new Scanner(file);
for(jobLength = 0; fileScan.hasNextLine() ; jobLength++){
token = new StringTokenizer(fileScan.nextLine(),",");
tempSize = Integer.parseInt(token.nextToken());
tempTime = Integer.parseInt(token.nextToken());
jobs[jobLength] = new Job(tempSize, tempTime);
}
fileScan.close();
System.out.println("complete");
System.out.println(jobLength+" jobs found on file");
}
//Send jobs to algorithm, time is calculated and printed out after completion
System.out.print("Sending jobs to algorithm...");
timeStart = System.currentTimeMillis();
for(int i = 0; i < jobLength; i++){
//alg.allocate(jobs[i]); //Uncomment this line to get your algorithm to work
}
timeEnd = System.currentTimeMillis() - timeStart;
System.out.println("complete");
System.out.println("Elapsed time for algorithm to complete "+ jobLength+" jobs is "+timeEnd+" milliseconds");
/*
//This will be updated to print out timing information and other useful info
System.out.print("Writing gathered data to file...");
for(int i = 0; i < jobLength; i++)
output.println(jobs[i]);
System.out.println("complete");
*/
System.out.println("Completed Successfully");
//output.close();
}
}