Examples with DALChangeListener com.cosylab.CDB.DALChangeListener used on opensource projects

Example 6 with DALChangeListener

use of com.cosylab.CDB.DALChangeListener in project ACS by ACS-Community.

the class MyTestCBvoid method testActivateOffShoot.

public void testActivateOffShoot() throws Exception {
    // activate callback object
    MyTestCBvoid cb = new MyTestCBvoid(m_logger);
    m_logger.info("MyTestCBvoid instantiated...");
    CBvoid cbvoid = alma.ACS.CBvoidHelper.narrow(getContainerServices().activateOffShoot(cb));
    m_logger.info("MyTestCBvoid activated.");
    // activate dal listener object
    m_logger.info("activating dal listener offshoot...");
    DALChangeListenerPOA dalListenerSrv = new MyTestDALChangeListener();
    OffShoot offshoot2 = getContainerServices().activateOffShoot(dalListenerSrv);
    DALChangeListener dalListenerRef = DALChangeListenerHelper.narrow(offshoot2);
    m_logger.info("done activating dal listener offshoot.");
    // check if dal listener works...
    m_logger.info("calling dal listener...");
    dalListenerRef.object_changed("happyCurl");
    m_logger.info("done calling dal listener.");
    // check if callback works...
    RWdouble brightness = null;
    Lamp lamp = LampHelper.narrow(getContainerServices().getComponent(m_lampCurl));
    assertNotNull("reference to Lamp component not null", lamp);
    brightness = lamp.brightness();
    assertNotNull("brightness property of lamp not null", brightness);
    CBDescIn desc = new CBDescIn();
    m_logger.info("m_desc instantiated...");
    m_logger.info("before setting callback...");
    brightness.set_async(7.345, cbvoid, desc);
    m_logger.finer("callback set...");
//todo: do something and get feedback from the callback object		
//		m_logger.finer("changing value (sync)...");
//		brightness.set_sync(8.456);
}

Example 7 with DALChangeListener

use of com.cosylab.CDB.DALChangeListener in project ACS by ACS-Community.

the class HibernateWDALImpl method clearCache.

protected void clearCache(String curl) {
    // NOTICE: this really does not reload the data from DB...
    // first take care of our own map
    m_logger.info("clear_cache(curl): clearCache1");
    object_changed(curl);
    m_logger.info("clear_cache(curl): clearCache2");
    // then notify all registered listeners
    synchronized (listenedCurls) {
        boolean needToSave = false;
        ArrayList<Integer> listeners = listenedCurls.get(curl);
        m_logger.info("clear_cache(curl): clearCache3");
        if (listeners == null) {
            return;
        }
        ArrayList<Integer> invalidListeners = new ArrayList<Integer>();
        m_logger.info("clear_cache(curl): clearCache4");
        for (int i = 0; i < listeners.size(); i++) {
            DALChangeListener listener = null;
            synchronized (regListeners) {
                listener = regListeners.get(listeners.get(i));
            }
            try {
                //System.out.println("Calling " + listener + " ...");
                listener.object_changed(curl);
            //System.out.println("Done " + listener);
            } catch (RuntimeException e) {
                // silent here because who knows what happend with clients
                invalidListeners.add(listeners.get(i));
            }
        }
        m_logger.info("clear_cache(curl): clearCache5");
        // now remove invalid listeners if any
        for (int i = 0; i < invalidListeners.size(); i++) {
            listeners.remove(invalidListeners.get(i));
            synchronized (regListeners) {
                regListeners.remove(invalidListeners.get(i));
            }
            needToSave = true;
        }
        m_logger.info("clear_cache(curl): clearCache6");
        if (needToSave) {
            cleanListenedCurls();
            saveListeners();
        }
        m_logger.info("clear_cache(curl): clearCache7");
    }
}

Example 8 with DALChangeListener

use of com.cosylab.CDB.DALChangeListener in project ACS by ACS-Community.

the class HibernateWDALImpl method cleanListenedCurls.

/**
	 * Cleans listened curls from invalid listeners
	 * to avoid repeatedly calling invalid listeners
	 */
protected void cleanListenedCurls() {
    Iterator iter = listenedCurls.keySet().iterator();
    while (iter.hasNext()) {
        String curl = (String) iter.next();
        ArrayList listeners = (ArrayList) listenedCurls.get(curl);
        if (listeners == null)
            continue;
        for (int i = 0; i < listeners.size(); i++) {
            DALChangeListener listener = null;
            synchronized (regListeners) {
                listener = (DALChangeListener) regListeners.get(listeners.get(i));
            }
            if (listener == null) {
                listeners.remove(i);
                i--;
            }
        }
    }
}