Ejemplo n.º 1
0
  public static void main(String[] args) {
    Date start = new Date();
    if (args.length < 3) {
      System.out.println("Wrong number of arguments:\n" + USAGE);
      return;
    }

    // get # threads
    int tc = Integer.parseInt(args[0]);
    String outfile = args[1];

    // make a threadsafe queue of all files to process
    ConcurrentLinkedQueue<String> files = new ConcurrentLinkedQueue<String>();
    for (int i = 2; i < args.length; i++) {
      files.add(args[i]);
    }

    // hastable for results
    Hashtable<String, Integer> results = new Hashtable<String, Integer>(HASH_SIZE, LF);

    // spin up the threads
    Thread[] workers = new Thread[tc];
    for (int i = 0; i < tc; i++) {
      workers[i] = new Worker(files, results);
      workers[i].start();
    }

    // wait for them to finish
    try {
      for (int i = 0; i < tc; i++) {
        workers[i].join();
      }
    } catch (Exception e) {
      System.out.println("Caught Exception: " + e.getMessage());
    }

    // terminal output
    Date end = new Date();
    System.out.println(end.getTime() - start.getTime() + " total milliseconds");
    System.out.println(results.size() + " unique words");

    // sort results for easy comparison/verification
    List<Map.Entry<String, Integer>> sorted_results =
        new ArrayList<Map.Entry<String, Integer>>(results.entrySet());
    Collections.sort(sorted_results, new KeyComp());
    // file output
    try {
      PrintStream out = new PrintStream(outfile);
      for (int i = 0; i < sorted_results.size(); i++) {
        out.println(sorted_results.get(i).getKey() + "\t" + sorted_results.get(i).getValue());
      }
    } catch (Exception e) {
      System.out.println("Caught Exception: " + e.getMessage());
    }
  }
Ejemplo n.º 2
0
 public void printTableLine(PrintStream ps, int idx) {
   String[] line = table.get(idx);
   for (int i = 0; i < line.length; i++) {
     ps.print(String.format("%s%s", i > 0 ? "\t" : "", line[i]));
   }
 }
Ejemplo n.º 3
0
 public void printHeaderLine(PrintStream ps) {
   for (int i = 0; i < header.size(); i++) {
     ps.print(String.format("%s%s", i > 0 ? "\t" : "", header.get(i)));
   }
 }