Ejemplo n.º 1
0
 public void run() {
   try {
     sel.close();
   } catch (Throwable th) {
     throw new Error(th);
   }
 }
Ejemplo n.º 2
0
 public void run() {
   for (; ; ) {
     try {
       int n = sel.select();
       if (n > 0) processSelectedKeys();
       processPendingTargets();
       if (shutdown) {
         sel.close();
         return;
       }
     } catch (IOException x) {
       x.printStackTrace();
     }
   }
 }
Ejemplo n.º 3
0
  void close() {
    try {
      if (mySelector != null) mySelector.close();
    } catch (IOException e) {
    }
    mySelector = null;

    // run down open connections and sockets.
    Iterator<ServerSocketChannel> i = Acceptors.values().iterator();
    while (i.hasNext()) {
      try {
        i.next().close();
      } catch (IOException e) {
      }
    }

    // 29Sep09: We create an ArrayList of the existing connections, then iterate over
    // that to call unbind on them. This is because an unbind can trigger a reconnect,
    // which will add to the Connections HashMap, causing a ConcurrentModificationException.
    // XXX: The correct behavior here would be to latch the various reactor methods to return
    // immediately if the reactor is shutting down.
    ArrayList<EventableChannel> conns = new ArrayList<EventableChannel>();
    Iterator<EventableChannel> i2 = Connections.values().iterator();
    while (i2.hasNext()) {
      EventableChannel ec = i2.next();
      if (ec != null) {
        conns.add(ec);
      }
    }
    Connections.clear();

    ListIterator<EventableChannel> i3 = conns.listIterator(0);
    while (i3.hasNext()) {
      EventableChannel ec = i3.next();
      eventCallback(ec.getBinding(), EM_CONNECTION_UNBOUND, null);
      ec.close();

      EventableSocketChannel sc = (EventableSocketChannel) ec;
      if (sc != null && sc.isAttached()) DetachedConnections.add(sc);
    }

    ListIterator<EventableSocketChannel> i4 = DetachedConnections.listIterator(0);
    while (i4.hasNext()) {
      EventableSocketChannel ec = i4.next();
      ec.cleanup();
    }
    DetachedConnections.clear();
  }
Ejemplo n.º 4
0
  /**
   * Operates in a loop, accepting new connections and ensuring that requests on those connections
   * are handled properly.
   */
  @Override
  public void run() {
    setName(handlerName);
    boolean listening = false;
    boolean starting = true;

    while (!shutdownRequested) {
      // If this connection handler is not enabled, then just sleep
      // for a bit and check again.
      if (!enabled) {
        if (listening) {
          cleanUpSelector();
          listening = false;

          logger.info(NOTE_CONNHANDLER_STOPPED_LISTENING, handlerName);
        }

        if (starting) {
          // This may happen if there was an initialisation error
          // which led to disable the connector.
          // The main thread is waiting for the connector to listen
          // on its port, which will not occur yet,
          // so notify here to allow the server startup to complete.
          synchronized (waitListen) {
            starting = false;
            waitListen.notify();
          }
        }

        StaticUtils.sleep(1000);
        continue;
      }

      // If we have gotten here, then we are about to start listening
      // for the first time since startup or since we were previously
      // disabled. Make sure to start with a clean selector and then
      // create all the listeners.
      try {
        cleanUpSelector();

        int numRegistered = registerChannels();

        // At this point, the connection Handler either started
        // correctly or failed to start but the start process
        // should be notified and resume its work in any cases.
        synchronized (waitListen) {
          waitListen.notify();
        }

        // If none of the listeners were created successfully, then
        // consider the connection handler disabled and require
        // administrative action before trying again.
        if (numRegistered == 0) {
          logger.error(ERR_LDAP_CONNHANDLER_NO_ACCEPTORS, currentConfig.dn());

          enabled = false;
          continue;
        }

        listening = true;

        // Enter a loop, waiting for new connections to arrive and
        // then accepting them as they come in.
        boolean lastIterationFailed = false;
        while (enabled && !shutdownRequested) {
          try {
            serveIncomingConnections();

            lastIterationFailed = false;
          } catch (Exception e) {
            logger.traceException(e);
            logger.error(
                ERR_CONNHANDLER_CANNOT_ACCEPT_CONNECTION,
                friendlyName,
                currentConfig.dn(),
                getExceptionMessage(e));

            if (lastIterationFailed) {
              // The last time through the accept loop we also
              // encountered a failure. Rather than enter a potential
              // infinite loop of failures, disable this acceptor and
              // log an error.
              LocalizableMessage message =
                  ERR_CONNHANDLER_CONSECUTIVE_ACCEPT_FAILURES.get(
                      friendlyName, currentConfig.dn(), stackTraceToSingleLineString(e));
              logger.error(message);

              DirectoryServer.sendAlertNotification(
                  this, ALERT_TYPE_LDAP_CONNECTION_HANDLER_CONSECUTIVE_FAILURES, message);

              cleanUpSelector();
              enabled = false;
            } else {
              lastIterationFailed = true;
            }
          }
        }

        if (shutdownRequested) {
          cleanUpSelector();
          selector.close();
          listening = false;
          enabled = false;
        }

      } catch (Exception e) {
        logger.traceException(e);

        // This is very bad because we failed outside the loop. The
        // only thing we can do here is log a message, send an alert,
        // and disable the selector until an administrator can figure
        // out what's going on.
        LocalizableMessage message =
            ERR_LDAP_CONNHANDLER_UNCAUGHT_ERROR.get(
                currentConfig.dn(), stackTraceToSingleLineString(e));
        logger.error(message);

        DirectoryServer.sendAlertNotification(
            this, ALERT_TYPE_LDAP_CONNECTION_HANDLER_UNCAUGHT_ERROR, message);

        cleanUpSelector();
        enabled = false;
      }
    }
  }