Esempio n. 1
0
 /** On network error, create ExceptionEvent and delever it to all listeners on all events. */
 protected void processNetworkError(Exception ex) {
   Hashtable tmpRequestList = new Hashtable();
   tmpRequestList.putAll(_requestList);
   int[] ids = _msgQueue.getMessageIDs();
   if (ids != null) {
     for (int i = 0; i < ids.length; i++) {
       tmpRequestList.remove(Integer.toString(ids[i]));
     }
   }
   Collection reqList = tmpRequestList.values();
   for (Iterator iter = reqList.iterator(); iter.hasNext(); ) {
     Request request = (Request) iter.next();
     dispatchException(ex, request);
   }
 }
Esempio n. 2
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  /**
   * Reset error searches. Clear cache only if true is passed to argument
   *
   * @param clearCaches
   */
  protected void resetErrorSearches(boolean clearCaches) {

    Hashtable tmpReqList = new Hashtable();
    tmpReqList.putAll(_requestList);

    int[] ids = _msgQueue.getMessageIDs();
    if (ids != null) {
      for (int i = 0; i < ids.length; i++) {
        String reqID = Integer.toString(ids[i]);
        tmpReqList.remove(reqID);
      }
    }
    Collection reqList = tmpReqList.values();
    for (Iterator iter = reqList.iterator(); iter.hasNext(); ) {
      Request req = (Request) iter.next();
      _requestList.remove(req.getRequestID());
    }
    _retryInterval = getPropertyIntValue(EVENT_CONNECTION_RETRY_INTERVAL, _retryInterval);
    RetryTask task = new RetryTask(tmpReqList);
    task.clearCache(clearCaches);
    SystemTimer.getTimer()
        .schedule(task, new Date(((System.currentTimeMillis() + _retryInterval) / 1000) * 1000));
  }
Esempio n. 3
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  /**
   * Main monitor thread loop. Wait for persistent search change notifications
   *
   * @supported.api
   */
  public void run() {
    try {
      if (debugger.messageEnabled()) {
        debugger.message(
            "EventService.run(): Event Thread is running! "
                + "No Idle timeout Set: "
                + _idleTimeOut
                + " minutes.");
      }

      boolean successState = true;
      LDAPMessage message = null;
      while (successState) {
        try {
          if (debugger.messageEnabled()) {
            debugger.message("EventService.run(): Waiting for " + "response");
          }
          synchronized (this) {
            if (_requestList.isEmpty()) {
              wait();
            }
          }
          message = _msgQueue.getResponse();
          successState = processResponse(message);
        } catch (LDAPInterruptedException ex) {
          if (_shutdownCalled) {
            break;
          } else {
            if (debugger.warningEnabled()) {
              debugger.warning("EventService.run() " + "LDAPInterruptedException received:", ex);
            }
          }
        } catch (LDAPException ex) {
          if (_shutdownCalled) {
            break;
          } else {
            int resultCode = ex.getLDAPResultCode();
            if (debugger.warningEnabled()) {
              debugger.warning("EventService.run() LDAPException " + "received:", ex);
            }
            _retryErrorCodes = getPropertyRetryErrorCodes(EVENT_CONNECTION_ERROR_CODES);

            // Catch special error codition in
            // LDAPSearchListener.getResponse
            String msg = ex.getLDAPErrorMessage();
            if ((resultCode == LDAPException.OTHER)
                && (msg != null)
                && msg.equals("Invalid response")) {
              // We should not try to resetError and retry
              processNetworkError(ex);
            } else {
              if (_retryErrorCodes.contains("" + resultCode)) {
                resetErrorSearches(true);
              } else { // Some other network error
                processNetworkError(ex);
              }
            }
          }
        }
      } // end of while loop
    } catch (InterruptedException ex) {
      if (!_shutdownCalled) {
        if (debugger.warningEnabled()) {
          debugger.warning("EventService.run(): Interrupted exception" + " caught.", ex);
        }
      }
    } catch (RuntimeException ex) {
      if (debugger.warningEnabled()) {
        debugger.warning("EventService.run(): Runtime exception " + "caught.", ex);
      }
      // rethrow the Runtime exception to let the container handle the
      // exception.
      throw ex;
    } catch (Exception ex) {
      if (debugger.warningEnabled()) {
        debugger.warning("EventService.run(): Unknown exception " + "caught.", ex);
      }
      // no need to rethrow.
    } catch (Throwable t) {
      // Catching Throwable to prevent the thread from exiting.
      if (debugger.warningEnabled()) {
        debugger.warning(
            "EventService.run(): Unknown exception " + "caught. Sleeping for a while.. ", t);
      }
      // rethrow the Error to let the container handle the error.
      throw new Error(t);
    } finally {
      synchronized (this) {
        if (!_shutdownCalled) {
          // try to restart the monitor thread.
          _monitorThread = null;
          startMonitorThread();
        }
      }
    }
  } // end of thread
Esempio n. 4
0
  /**
   * Adds a listener to the directory.
   *
   * @supported.api
   */
  protected synchronized String addListener(
      SSOToken token,
      IDSEventListener listener,
      String base,
      int scope,
      String filter,
      int operations)
      throws LDAPException, EventException {

    if (_shutdownCalled) {
      throw new EventException(i18n.getString(IUMSConstants.DSCFG_CONNECTFAIL));
    }

    LDAPConnection lc = null;
    try {
      // Check for SMS listener and use "sms" group if present
      if ((listener.getClass().getName().equals("com.sun.identity.sm.ldap.LDAPEventManager"))
          && (cm.getServerGroup("sms") != null)) {
        lc = cm.getNewConnection("sms", LDAPUser.Type.AUTH_ADMIN);

      } else {
        lc = cm.getNewAdminConnection();
      }
    } catch (LDAPServiceException le) {
      throw new EventException(i18n.getString(IUMSConstants.DSCFG_CONNECTFAIL), le);
    }

    LDAPSearchConstraints cons = lc.getSearchConstraints();

    // Create Persistent Search Control object
    LDAPPersistSearchControl psearchCtrl =
        new LDAPPersistSearchControl(operations, CHANGES_ONLY, RETURN_CONTROLS, IS_CRITICAL);

    // Add LDAPControl array to the search constraint object
    cons.setServerControls(psearchCtrl);
    cons.setBatchSize(1);

    // Listeners can not read attributes from the event.
    // Request only javaClassName to be able to determine object type
    String[] attrs = new String[] {"objectclass"};
    LDAPSearchListener searchListener = null;
    // Set (asynchronous) persistent search request in the DS
    try {
      if (debugger.messageEnabled()) {
        debugger.message(
            "EventService.addListener() - Submiting "
                + "Persistent Search on: "
                + base
                + " for listener: "
                + listener);
      }
      searchListener = lc.search(base, scope, filter, attrs, false, null, cons);
    } catch (LDAPException le) {
      if ((lc != null) && lc.isConnected()) {
        try {
          lc.disconnect();
        } catch (Exception ex) {
          // ignored
        }
      }
      debugger.error(
          "EventService.addListener() - Failed to set " + "Persistent Search" + le.getMessage());
      throw le;
    }

    int[] outstandingRequests = searchListener.getMessageIDs();
    int id = outstandingRequests[outstandingRequests.length - 1];

    String reqID = Integer.toString(id);
    long startTime = System.currentTimeMillis();
    Request request =
        new Request(
            id, reqID, token, base, scope, filter, attrs, operations, listener, lc, startTime);
    _requestList.put(reqID, request);

    // Add this search request to the m_msgQueue so it can be
    // processed by the monitor thread
    if (_msgQueue == null) {
      _msgQueue = searchListener;
    } else {
      _msgQueue.merge(searchListener);
    }

    if (!_isThreadStarted) {
      startMonitorThread();
    } else {
      if (_requestList.size() == 1) {
        notify();
      }
    }

    if (debugger.messageEnabled()) {
      outstandingRequests = _msgQueue.getMessageIDs();
      debugger.message(
          "EventService.addListener(): merged Listener: "
              + " requestID: "
              + reqID
              + " & Request: "
              + request
              + " on to message Queue. No. of current outstanding "
              + "requests = "
              + outstandingRequests.length);
    }

    // Create new (EventService) Thread, if one doesn't exist.
    return reqID;
  }