1 import java.util.*;
   2 import java.io.*;
   3 
   4 public class PerfRedux {
   5 	
   6     static TimeRecord   currentRecord;
   7 
   8     static int 	 	  gran;  
   9     static FileWriter 	  out;
  10 
  11     public static void main(String[] args) {
  12 
  13 	 String	currentString;   
  14 	 String	finalReportString;
  15  
  16        String   target;
  17        String   destination;
  18 
  19 
  20        try {
  21 	    target 		= (String) args[0];
  22 	    destination	= (String) args[1];
  23 	    gran   = Integer.parseInt(args[2]);
  24 	 } catch (Exception e) {
  25 	    System.out.println("ERROR! Malformed command line arguements");
  26 	    return;	
  27 	 }	 
  28 
  29 	 // Build the first time record
  30 	 currentRecord = new TimeRecord(0, gran-1);
  31 
  32 	 // Open files and start read loop
  33 	 try { 
  34 
  35 	    out     = new FileWriter(destination);
  36 	
  37 	    FileReader 	  theFile = new FileReader(target);
  38 	    BufferedReader  in      = new BufferedReader(theFile);
  39 
  40 	    currentString = in.readLine();
  41 	    while( currentString != null ) {
  42 	       
  43 		 handleLine(currentString); 
  44 
  45 	       currentString = in.readLine();
  46 	    }
  47 
  48 	    if (currentRecord != null) {
  49 
  50 		 // code to clear out last time record
  51  		finalReportString = currentRecord.report();
  52 		out.write(finalReportString, 0, finalReportString.length());
  53   
  54 	    }
  55 
  56 	    in.close();
  57 	    out.close();
  58       
  59 	} catch (FileNotFoundException e) {  
  60 	      System.out.println("ERROR! Could not find FILE: " + target);
  61 	} catch (IOException e) { 
  62 		System.out.println("ERROR! General IO Error");
  63 	}
  64 
  65    }  // end main()
  66 
  67    private static void  handleLine(String  line) {
  68 
  69 	StringBuffer  timeString = new StringBuffer();
  70 	int 		  rover = 0;
  71 	char		  tempChar;
  72 
  73 	System.out.println("HANDLE : " + line);
  74 
  75 	// if we bust a bounds here anywhere, then the line is not a valid put.  
  76 	// catch the exception and move on.
  77 	try  {
  78 
  79          // Discard if does not start with time
  80 	   if ( !Character.isDigit(line.charAt(0)) ) return;
  81 
  82 	   // Peal off important elements.  Return if any indicate this is not a put record.
  83 	   tempChar = line.charAt(rover);
  84 	   while (Character.isDigit(tempChar)) {
  85 	      timeString.append(tempChar);
  86 	      rover++;
  87 		tempChar = line.charAt(rover);
  88 	   }
  89 
  90 	   // Jump 3 chars.  If not a P, then ditch.
  91 	   rover += 3;
  92 	   if (line.charAt(rover) != 'P') {
  93 		System.out.println("DROP");
  94 		return;
  95 	   };
  96 
  97 	   // Ok.  I think we have a put line.  Go ahead and start building the entry
  98 	   TimeEntry te = new TimeEntry();
  99 	   te.time = Integer.parseInt(timeString.toString());
 100 
 101 	   // What was the result code?  Find a digit
 102 	   while ( !Character.isDigit(line.charAt(rover)) ) { rover++; }
 103 	
 104 	   te.result = Character.digit(line.charAt(rover), 10);
 105 	   rover++;
 106 
 107 	   // Find the latency
 108 	   while ( !Character.isDigit(line.charAt(rover)) ) { rover++; }
 109 	   StringBuffer  latencyString = new StringBuffer();
 110 	   tempChar = line.charAt(rover);
 111 	   while (Character.isDigit(tempChar)) {
 112 	      latencyString.append(tempChar);
 113 	      rover++;
 114 		tempChar = line.charAt(rover);
 115 	   }
 116 	   te.latency = Integer.parseInt(latencyString.toString());
 117 
 118 	   // Find the size
 119 	   while ( !Character.isDigit(line.charAt(rover)) ) { rover++; }
 120 
 121 	   StringBuffer  sizeString = new StringBuffer();
 122 	   tempChar = line.charAt(rover);
 123 	
 124 	   while (Character.isDigit(tempChar)) {
 125 	      sizeString.append(tempChar);
 126 	      rover++;
 127 		try { 
 128 		   tempChar = line.charAt(rover);  
 129 		} catch (StringIndexOutOfBoundsException es) {
 130 		   // This just means there is no white space at the end of the line.  technically,
 131 		   // it is ok.
 132 		   tempChar = 'x';  // something that ISNT a digit  :-)
 133 		}
 134 	   }
 135 		
 136 	   te.size = Integer.parseInt(sizeString.toString());
 137   
 138 	   // We have a whole record.  Try to put it in somewhere
 139 	   if (currentRecord.isIn(te)) {
 140 		System.out.println("Push");		
 141 		currentRecord.put(te);
 142 		
 143 	   } else {
 144 		// Not in that time zone.  report the current and build a new one
 145 		System.out.println("NEW");		
 146 
 147 		String outString = currentRecord.report();
 148 		out.write(outString, 0, outString.length());
 149 
 150 		int  newBase  = te.time - (te.time % gran);
 151 		currentRecord = new TimeRecord(newBase, (newBase + (gran-1)) );
 152 
 153 		if (!currentRecord.put(te)) {
 154 			System.out.println("Software detected fault:  couldnt stuff a brand-new TimeRecord"); 
 155 		}
 156 	   }
 157   	   
 158 	} catch (Exception e) { };
 159 
 160    } // end handeLine()
 161 
 162 }
 163