Beispiel #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());
    }
  }
  /**
   * The dependent service is available and the bundle will start.
   *
   * @param dependentService the UIService this activator is waiting.
   */
  @Override
  public void start(Object dependentService) {
    if (logger.isDebugEnabled()) logger.debug("Update checker [STARTED]");

    ConfigurationService cfg = getConfiguration();

    if (OSUtils.IS_WINDOWS) {
      updateService = new Update();

      bundleContext.registerService(UpdateService.class.getName(), updateService, null);

      // Register the "Check for Updates" menu item if
      // the "Check for Updates" property isn't disabled.
      if (!cfg.getBoolean(CHECK_FOR_UPDATES_MENU_DISABLED_PROP, false)) {
        // Register the "Check for Updates" menu item.
        CheckForUpdatesMenuItemComponent checkForUpdatesMenuItemComponent =
            new CheckForUpdatesMenuItemComponent(Container.CONTAINER_HELP_MENU);

        Hashtable<String, String> toolsMenuFilter = new Hashtable<String, String>();
        toolsMenuFilter.put(Container.CONTAINER_ID, Container.CONTAINER_HELP_MENU.getID());

        bundleContext.registerService(
            PluginComponent.class.getName(), checkForUpdatesMenuItemComponent, toolsMenuFilter);
      }

      // Check for software update upon startup if enabled.
      if (cfg.getBoolean(UPDATE_ENABLED, true)) updateService.checkForUpdates(false);
    }

    if (cfg.getBoolean(CHECK_FOR_UPDATES_DAILY_ENABLED_PROP, false)) {
      logger.info("Scheduled update checking enabled");

      // Schedule a "check for updates" task that will run once a day
      int hoursToWait = calcHoursToWait();
      Runnable updateRunnable =
          new Runnable() {
            public void run() {
              logger.debug("Performing scheduled update check");
              getUpdateService().checkForUpdates(false);
            }
          };

      mUpdateExecutor = Executors.newSingleThreadScheduledExecutor();
      mUpdateExecutor.scheduleAtFixedRate(
          updateRunnable, hoursToWait, 24 * 60 * 60, TimeUnit.SECONDS);
    }

    if (logger.isDebugEnabled()) logger.debug("Update checker [REGISTERED]");
  }
  /**
   * See <a href="http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html">
   * http://e-docs.bea.com/wls/docs100/javadocs/weblogic/common/T3StartupDef.html</a> for more
   * information.
   *
   * @param str Virtual name by which the class is registered as a {@code startupClass} in the
   *     {@code config.xml} file
   * @param params A hashtable that is made up of the name-value pairs supplied from the {@code
   *     startupArgs} property
   * @return Result string (log message).
   * @throws Exception Thrown if error occurred.
   */
  @SuppressWarnings({"unchecked", "CatchGenericClass"})
  @Override
  public String startup(String str, Hashtable params) throws Exception {
    GridLogger log = new GridJavaLogger(LoggingHelper.getServerLogger());

    cfgFile = (String) params.get(cfgFilePathParam);

    if (cfgFile == null) {
      throw new IllegalArgumentException("Failed to read property: " + cfgFilePathParam);
    }

    String workMgrName = (String) params.get(workMgrParam);

    URL cfgUrl = U.resolveGridGainUrl(cfgFile);

    if (cfgUrl == null)
      throw new ServerLifecycleException(
          "Failed to find Spring configuration file (path provided should be "
              + "either absolute, relative to GRIDGAIN_HOME, or relative to META-INF folder): "
              + cfgFile);

    GenericApplicationContext springCtx;

    try {
      springCtx = new GenericApplicationContext();

      XmlBeanDefinitionReader xmlReader = new XmlBeanDefinitionReader(springCtx);

      xmlReader.loadBeanDefinitions(new UrlResource(cfgUrl));

      springCtx.refresh();
    } catch (BeansException e) {
      throw new ServerLifecycleException(
          "Failed to instantiate Spring XML application context: " + e.getMessage(), e);
    }

    Map cfgMap;

    try {
      // Note: Spring is not generics-friendly.
      cfgMap = springCtx.getBeansOfType(GridConfiguration.class);
    } catch (BeansException e) {
      throw new ServerLifecycleException(
          "Failed to instantiate bean [type="
              + GridConfiguration.class
              + ", err="
              + e.getMessage()
              + ']',
          e);
    }

    if (cfgMap == null)
      throw new ServerLifecycleException(
          "Failed to find a single grid factory configuration in: " + cfgUrl);

    if (cfgMap.isEmpty())
      throw new ServerLifecycleException("Can't find grid factory configuration in: " + cfgUrl);

    try {
      ExecutorService execSvc = null;

      MBeanServer mbeanSrv = null;

      for (GridConfiguration cfg : (Collection<GridConfiguration>) cfgMap.values()) {
        assert cfg != null;

        GridConfigurationAdapter adapter = new GridConfigurationAdapter(cfg);

        // Set logger.
        if (cfg.getGridLogger() == null) adapter.setGridLogger(log);

        if (cfg.getExecutorService() == null) {
          if (execSvc == null)
            execSvc =
                workMgrName != null
                    ? new GridThreadWorkManagerExecutor(workMgrName)
                    : new GridThreadWorkManagerExecutor(J2EEWorkManager.getDefault());

          adapter.setExecutorService(execSvc);
        }

        if (cfg.getMBeanServer() == null) {
          if (mbeanSrv == null) {
            InitialContext ctx = null;

            try {
              ctx = new InitialContext();

              mbeanSrv = (MBeanServer) ctx.lookup("java:comp/jmx/runtime");
            } catch (Exception e) {
              throw new IllegalArgumentException(
                  "MBean server was not provided and failed to obtain " + "Weblogic MBean server.",
                  e);
            } finally {
              if (ctx != null) ctx.close();
            }
          }

          adapter.setMBeanServer(mbeanSrv);
        }

        Grid grid = G.start(adapter, springCtx);

        // Test if grid is not null - started properly.
        if (grid != null) gridNames.add(grid.name());
      }

      return getClass().getSimpleName() + " started successfully.";
    } catch (GridException e) {
      // Stop started grids only.
      for (String name : gridNames) G.stop(name, true);

      throw new ServerLifecycleException("Failed to start GridGain.", e);
    }
  }
Beispiel #4
0
  public void run() {
    // each file is processed into a local hash table and then merged with the global results
    // this will cause much less contention on the global table, but still avoids a sequential
    // update
    Hashtable<String, Integer> local_results =
        new Hashtable<String, Integer>(WordCountJ.HASH_SIZE, WordCountJ.LF);
    // grab a file to work on
    String cf;
    while ((cf = files.poll()) != null) {
      try {
        BufferedReader input = new BufferedReader(new FileReader(cf));
        String text;
        // well go line-by-line... maybe this is not the fastest
        while ((text = input.readLine()) != null) {
          // parse words
          Matcher matcher = pattern.matcher(text);
          while (matcher.find()) {
            String word = matcher.group(1);
            if (local_results.containsKey(word)) {
              local_results.put(word, 1 + local_results.get(word));
            } else {
              local_results.put(word, 1);
            }
          }
        }
        input.close();
      } catch (Exception e) {
        System.out.println(" caught a " + e.getClass() + "\n with message: " + e.getMessage());
        return;
      }
      // merge local hashmap with shared one,could have a
      // seperate thread do this but that might be cheating

      Iterator<Map.Entry<String, Integer>> updates = local_results.entrySet().iterator();
      while (updates.hasNext()) {
        Map.Entry<String, Integer> kv = updates.next();
        String k = kv.getKey();
        Integer v = kv.getValue();
        synchronized (results) {
          if (results.containsKey(k)) {
            results.put(k, v + results.get(k));
          } else {
            results.put(k, v);
          }
        }
      }
      local_results.clear();
    }
  }