-Added more testing code for best fit

BestFitAlgorithm.java

@@ -4,31 +4,36 @@
  *  11/9/2012
  */
 
+import java.lang.reflect.Method;
 import java.util.ArrayList;
 
 public class BestFitAlgorithm implements baseAlgorithm{
     
     int memoryBlock[];
-   
+    private Job[] jobArray = new Job[memoryManagement.JOBAMOUNT+10];
+    ArrayList<Integer> candidates;
     
     public BestFitAlgorithm(int memorySize)
     {
         //Initialize memory block to whatever the size is
         memoryBlock = new int[memorySize];
+        System.out.println("The size of the memory is: " + memoryBlock.length);
     }
     
     public int getBestSizeIndex(int jobSize)
     {
-        int bestSize;
+        int bestSize; //The most suitable block size for the job
-        int bestSizeIndex;
+        int bestSizeIndex; //The most suitable block size starting index for the job
         
-        ArrayList<Integer> candidates = new ArrayList<Integer>(); //Dynamically resizable array list for allocation candidates (interleaved with index and memory size)
+        System.out.println("The size of the job is: " + jobSize);
+        
+        candidates = new ArrayList<Integer>(); //Dynamically resizable array list for allocation candidates (interleaved with index and memory size)
 
             int counter = 0; //Counter for measuring unallocated memory
-            //Scan through memory block and get free blocks
+            //Scan through memory block and get free blocks. Add candidates for allocation to array list
             for(int i = 0; i < memoryBlock.length; i++)
             {
-                //If position in memory block here is 0, iterate from that index and count up sequential 0's
+                //If position in memory block here is 0, iterate from that index and count up sequential 0's (free space)
                 if(memoryBlock[i] == 0)
                 {
                     for(int j = i; j < memoryBlock.length - i; j++)
@@ -38,17 +43,28 @@ public class BestFitAlgorithm implements baseAlgorithm{
                             counter++;
                         }
                     }
-                    if(counter >= jobSize)
+                    if(counter == jobSize)
                     {
                         candidates.add(i); //Store index
                         candidates.add(counter); //Store size of free memory chunk
                     }
+                    else if(counter >= jobSize)
+                    {
+                        candidates.add(i); //Store index
+                        candidates.add(counter); //Store size of free memory chunk
+                    }
+                    //System.out.println("The size of the counter is: " + counter);
                     counter = 0;
                 }
             }
+            for(int i = 0; i < candidates.size(); i++)
+            {
+                System.out.println("Candidate index: " + candidates.get(i));
+                System.out.println("Candidate size: " + candidates.get(i+1));
+            }
             
             //Iterate through candidate sizes
-            bestSizeIndex = 0; //Initialize best index to first spot in array list
+            bestSizeIndex = candidates.get(0).intValue(); //Initialize best index to first spot in array list
             
             bestSize = candidates.get(1).intValue(); //Initialize bestSize to first space size in candidate 
             
@@ -59,6 +75,7 @@ public class BestFitAlgorithm implements baseAlgorithm{
                 if(candidates.get(i).intValue() == jobSize)
                 {
                     bestSizeIndex = i - 1;
+                    System.out.println("The best size index is: " +  bestSizeIndex);
                     return bestSizeIndex; //You're done. Return the value.
                 }
                 //If the current size is less than the previous best size, make this the new best size
@@ -66,12 +83,15 @@ public class BestFitAlgorithm implements baseAlgorithm{
                 {
                     bestSize = candidates.get(i+1).intValue();
                     bestSizeIndex = i - 1;
+                    System.out.println("The best size index is: " +  bestSizeIndex);
                 }
             }
+            System.out.println("The best size is: " +  bestSize);
             
-        //If the best size is less than the job size, run this again
+        //No candidates
         if(candidates.isEmpty())
         {
+            System.out.println("No best size index");
             return -1;
         }
         
@@ -81,13 +101,26 @@ public class BestFitAlgorithm implements baseAlgorithm{
     @Override
     public void allocate(int jobID, int jobSize, int jobTime)
     {
+        try
+        {
+            Method deallocateMethod = this.getClass().getMethod("deallocate", new Class[]{int.class, int.class});
+
+            //checks to see if the job will fit in memory
+            if(jobSize>memoryBlock.length)
+            {
+                    System.out.println("This job is too large");
+                    System.exit(0);
+            }
+
             int bestSizeIndex = getBestSizeIndex(jobSize);
 
             //No candidates found
             if(bestSizeIndex == -1) 
             {
+                System.out.println("No candidates found...attempting to compact");
                 //Try compacting, then attempt to get an index again
                 compact();
+
                 bestSizeIndex = getBestSizeIndex(jobSize);
 
                 //Compacting still didn't produce an appropriate block
@@ -103,6 +136,20 @@ public class BestFitAlgorithm implements baseAlgorithm{
                 {
                     memoryBlock[i] = jobID;
                 }
+                
+                System.out.println("Successfully allocated!");
+                
+                for(int i = 0; i < memoryBlock.length; i++)
+                {
+                    System.out.println("Job at position " + i + "in memoryblock: " + memoryBlock[i]);
+                }
+            }
+
+        }   
+        
+        catch (Exception e)
+        {
+            System.out.println("Could not allocate job with ID " + jobID);
         }
     }
     

FirstFit.java

@@ -60,7 +60,7 @@ class FirstFit implements baseAlgorithm
 		if(jobSize>memSize)
 		{
 			System.out.println("\n\n*********************************************************"+
-										"         THIS JOB IS TO LARGE TO FIT INTO MEMORY"+
+										"         THIS JOB IS TOO LARGE TO FIT INTO MEMORY"+
 										"*********************************************************");
 			System.exit(0);
 		}

memoryManagement.java

@@ -71,6 +71,9 @@ public class memoryManagement{
 			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 threaded allocation algorithm...");
 		timeStart = System.currentTimeMillis();
@@ -84,15 +87,23 @@ public class memoryManagement{
 		System.out.println("complete");
 		System.out.println("Elapsed time for threaded allocation algorithm to complete " + jobLength +                                           
               " jobs is " + timeEnd + " milliseconds");
+                
+                
+                
+                
+                
 		//***Best Fit (David Weber)***
                 timeStart = System.currentTimeMillis();
                 for(int i = 0; i < jobLength - 1; i++){
-			//David_Weber_BestFit.allocate(id[i], size[i], time[i]);
+			David_Weber_BestFit.allocate(id[i], size[i], time[i]);
 		}
                 timeEnd = System.currentTimeMillis() - timeStart;
                 System.out.println("complete");
 		System.out.println("Elapsed time for threaded best fit allocation algorithm to complete " + jobLength + " jobs is " + timeEnd + " milliseconds");
                 
+                
+                
+                /*
                 //***Worst Fit (David Weber)***
                 timeStart = System.currentTimeMillis();
                 for(int i = 0; i < jobLength - 1; i++){
@@ -101,6 +112,7 @@ public class memoryManagement{
                 timeEnd = System.currentTimeMillis() - timeStart;
                 System.out.println("complete");
 		System.out.println("Elapsed time for threaded worst fit allocation algorithm to complete " + jobLength + " jobs is " + timeEnd + " milliseconds");
+                */
                 
                 //Put other algorithms here.