From 0f36bb2440a4909034da5dd28397134fb9ade808 Mon Sep 17 00:00:00 2001
From: Zach S-B <zachsb@outlook.com>
Date: Wed, 25 Aug 2021 14:56:52 +1000
Subject: [PATCH] Coverted from array to linked list

---
 Scheduler.java | 72 +++++++++++++++++++++++++-------------------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/Scheduler.java b/Scheduler.java
index e2709d1..5f74b39 100644
--- a/Scheduler.java
+++ b/Scheduler.java
@@ -3,15 +3,14 @@ import java.io.*;
 
 public class Scheduler {
     //Address of File name relative to code. Replace with request for filename?
-    String fileName = "datafiles/datafile1.txt";
+    String fileName = "datafiles/datafile2.txt";
     
-    //Initialise Processes. Assumes max of 10.
-    Process[] p = new Process[10];
-    private int processCount = -1;
+    LinkedList<Process> processList = new LinkedList<Process>();
+    LinkedList<Integer> randomNum = new LinkedList<>();
 
-    //Initialise Array for Random numbers. Assumes max of 50.
-    int[] randomNum = new int[50];
-    int randomNumLength = -1;
+
+    //Initialise Dispatcher time variable
+    int disp;
 
     /**
      * Main. Runs the program
@@ -27,37 +26,32 @@ public class Scheduler {
     public void run()
     {
         readFile(fileName); //Read the file
-
+        
         //Test Print
-        System.out.println("Begin Process List:");
-        for (int i = 0; i <= processCount; i++)
-        {
-            System.out.print("ID: ");
-            System.out.println(p[i].getId());
+        System.out.println("DISP: " + disp + "\n");
 
-            System.out.print("Arrive: ");
-            System.out.println(p[i].getArrive());
-            
-            System.out.print("ExecSize: ");
-            System.out.println(p[i].getExecSize());
-            
-            System.out.print("Tickets: ");
-            System.out.println(p[i].getTickets());      
-            
+        System.out.println("Begin Process List:");
+        
+        for (int i = 0; i < processList.size() ; i++)
+        {
+            System.out.println("ID: " + processList.get(i).getId());
+            System.out.println("Arrive: " + processList.get(i).getArrive());
+            System.out.println("ExecSize: " + processList.get(i).getExecSize());
+            System.out.println("Tickets: " + processList.get(i).getTickets());  
             System.out.println();      
         }
-        System.out.println("End Process List.");
+        System.out.println("End Process List.\n");
 
         System.out.println("Begin Random:");
-        for (int i = 0; i <= randomNumLength; i++)
+        for (int i = 0; i < randomNum.size(); i++)
         {
-            System.out.println(randomNum[i]);
+            System.out.println(randomNum.get(i));
         }
         System.out.println("End Random.");
 
     }
 
-    /**
+/**
      * readFile. Reads the file given, creating processes as needed to save details.
      * @param fileNameInput address of the file to be read in.
      */
@@ -82,15 +76,20 @@ public class Scheduler {
                     System.out.println("End of File Reached");
                     break;
                 }
+
+                else if(line.startsWith("DISP"))
+                {
+                    disp =Integer.parseInt(line.substring(6));
+                }
                 
                 //If the Line starts with "ID:", create a new process
-                if(line.startsWith("ID:"))
+                else if(line.startsWith("ID:"))
                 {
                     //Create new proccess
-                    processCount++; //Increment the number of processes.
-                    p[processCount] = new Process();
+                    Process temp = new Process();
 
-                    p[processCount].setId(line.substring(4));   //Set the id of the proccess to whatever remains of the line after the "ID: "
+
+                    temp.setId(line.substring(4));   //Set the id of the proccess to whatever remains of the line after the "ID: "
 
                     //As we've read in the ID, we shall assume the following lines (until "END") are all part of the process definition.
                     while(fileReader.hasNextLine())
@@ -104,18 +103,18 @@ public class Scheduler {
                         
                         else if(line.startsWith("Arrive:"))
                         {   
-                            p[processCount].setArrive(Integer.parseInt(line.substring(8))); 
+                            temp.setArrive(Integer.parseInt(line.substring(8))); 
                         }
 
                         else if(line.startsWith("ExecSize:"))
                         {   
                             
-                            p[processCount].setSize(Integer.parseInt(line.substring(10))); 
+                            temp.setSize(Integer.parseInt(line.substring(10))); 
                         }                        
                         
                         else if(line.startsWith("Tickets:"))
                         {   
-                            p[processCount].setTickets(Integer.parseInt(line.substring(9))); 
+                            temp.setTickets(Integer.parseInt(line.substring(9))); 
                         }    
 
                         else 
@@ -123,6 +122,8 @@ public class Scheduler {
                             //Delete process?
                         }
                     }
+
+                    processList.add(temp);
                 }
                 
                 //If we read the line "BEGINRANDOM", we've started the random numbers section. Until the "ENDRANDOM" line,
@@ -140,8 +141,7 @@ public class Scheduler {
                         }
                         else
                         {
-                            randomNumLength++;
-                            randomNum[randomNumLength] = Integer.parseInt(line);
+                            randomNum.add(Integer.parseInt(line));
                         }
                     }
                 }
@@ -154,5 +154,5 @@ public class Scheduler {
             System.out.println("File not found.");
             //e.printStackTrace();  //Optional, shows more data.
         }
-    }
+    }    
 }
\ No newline at end of file