Examples with IDLEntity org.omg.CORBA.portable.IDLEntity used on opensource projects

Example 6 with IDLEntity

use of org.omg.CORBA.portable.IDLEntity in project ACS by ACS-Community.

the class NCPublisher method publishEvent.

/**
	 * Takes the given Java object and tries to pack it into a CORBA Any and
	 * publish it to the notification channel. 
	 * This will fail if the parameter is not
	 * CORBA-generated from a user-defined IDL struct. In simple terms, trying
	 * to publish native Java types is impossible because they have no CORBA
	 * mapping to say Python or C++ types.
	 * 
	 * @param customStruct
	 *            An instance of the IDL struct (Java class) to be published.
	 * @throws AcsJPublishEventFailureEx If <code>customStruct</code> is not an IDL struct,
	 *            for which it must be a subclass of IDLEntity.
	 * @throws AcsJException
	 *            There are an enormous amount of possibilities pertaining to
	 *            why an AcsJException would be thrown by publishEvent.
	 */
@Override
public void publishEvent(T customStruct) throws AcsJException {
    // Let's first verify that the use of generics between base class and here is OK also for the DDS side. 
    if (!(customStruct instanceof IDLEntity)) {
        String msg = "ACS is using Corba NC as the underlying pub/sub framework. Event data must be IDL-defined structs that inherit from org.omg.CORBA.portable.IDLEntity.";
        AcsJPublishEventFailureEx ex = new AcsJPublishEventFailureEx();
        ex.setFailureDescription(msg);
        ex.setChannelName(channelName);
        ex.setEventName(customStruct.getClass().getName());
        throw ex;
    }
    IDLEntity customStructEntity = (IDLEntity) customStruct;
    String typeName = customStructEntity.getClass().getSimpleName();
    // Event to send 
    // Header: domain_name = "ALMA", type_name = simple name of IDL struct, event_name = ""
    StructuredEvent event = getCORBAEvent(typeName, "");
    // Send event meta data (client name, timestamp, counter) in the accompanying EventDescription object,
    // which we transmit as the Any field 'remainder_of_body'.
    event.remainder_of_body = services.getAdvancedContainerServices().getAny();
    EventDescription descrip = new EventDescription(services.getName(), alma.acs.util.UTCUtility.utcJavaToOmg(System.currentTimeMillis()), count.getAndIncrement());
    EventDescriptionHelper.insert(event.remainder_of_body, descrip);
    // In the 'filterable_data' field, we send our IDL struct coded as an Any
    event.filterable_data = new Property[1];
    event.filterable_data[0] = new Property(alma.acscommon.DEFAULTDATANAME.value, anyAide.complexObjectToCorbaAny(customStructEntity));
    // Check the queue for events from previous failures.
    synchronized (eventQueueSync) {
        if (eventQueue != null) {
            CircularQueue<T>.Data<T> tmp;
            try {
                while ((tmp = eventQueue.pop()) != null) {
                    publishCORBAEvent(tmp.corbaData, tmp.userData);
                }
            } catch (Exception ex) {
                Level lev = (isTraceEventsEnabled ? Level.INFO : Level.FINEST);
                logger.log(lev, "Failed to flush event queue.", ex);
            // go on and try to send the new event, to at least have it inserted into the queue.
            }
        }
    }
    try {
        publishCORBAEvent(event, customStruct);
    } catch (AcsJCORBAProblemEx ex) {
        String info = ex.getInfo();
        if (false == info.contains("org.omg.CORBA.TRANSIENT")) {
            throw ex;
        }
    }
}

Example 7 with IDLEntity

use of org.omg.CORBA.portable.IDLEntity in project ACS by ACS-Community.

the class NCSubscriberAdminReuseTest method runConcurrentSubscribersCreation.

private void runConcurrentSubscribersCreation(int numRealSubscribersDefinedTotal) throws Exception {
    m_logger.info("Setting up " + numRealSubscribersDefinedTotal + " concurrent subscriber creations...");
    final List<AcsEventSubscriber<IDLEntity>> subscribers = Collections.synchronizedList(new ArrayList<AcsEventSubscriber<IDLEntity>>());
    // Create all the tasks first
    ThreadBurstExecutorService executor = new ThreadBurstExecutorService(getContainerServices().getThreadFactory());
    for (int i = 0; i < numRealSubscribersDefinedTotal; i++) {
        Runnable r = new Runnable() {

            public void run() {
                try {
                    // create subscriber, and add it to the list
                    subscribers.add(getContainerServices().createNotificationChannelSubscriber(CHANNEL_NAME, IDLEntity.class));
                } catch (Exception e) {
                    m_logger.log(Level.WARNING, "Failed to create a subscriber.", e);
                }
            }
        };
        try {
            executor.submit(r, 100, TimeUnit.SECONDS);
        } catch (InterruptedException e1) {
            fail("Failed to submit the subscriber creator thread to the executor service");
        }
    }
    // and now run'em all at the same time! (concurrently)
    m_logger.info("Will run " + numRealSubscribersDefinedTotal + " concurrent subscriber creations...");
    try {
        boolean startOK = executor.executeAllAndWait(100, TimeUnit.SECONDS);
        assertTrue("Not all subscribers started within the alotted 100 seconds window.", startOK);
    } catch (InterruptedException e) {
        fail("Got InterruptedException while running all my threads");
    }
    // After all the show, we should have all requested subscribers in the local list
    assertEquals(numRealSubscribersDefinedTotal, subscribers.size());
    m_logger.info("Successfully created " + numRealSubscribersDefinedTotal + " subscribers semi-concurrently. Will now check their NC admin links...");
    // Check if these subscribers are distributed correctly over several admin objects,
    // allowing for some overbooking due to concurrent requests (see comment about concurrency in c'tor of NCSubscriber)
    final int allowedAdminOverbooking = 2;
    int numRealSubscribersFoundTotal = 0;
    int[] adminIDs = channel.get_all_consumeradmins();
    for (int i = 0; i < adminIDs.length; i++) {
        int adminID = adminIDs[i];
        String msgBase = "Subscriber admin #" + (i + 1) + " (of " + adminIDs.length + ") ";
        try {
            int subs = channel.get_consumeradmin(adminID).push_suppliers().length;
            // minus 1 for the 'management' subscriber
            int numRealSubscribersThisAdmin = subs - 1;
            m_logger.info(msgBase + "has " + numRealSubscribersThisAdmin + " proxy objects (subscribers) attached.");
            if (i < adminIDs.length - 1) {
                // This is not the last of the admin objects. It should be  filled to the brim with proxies.
                assertThat(msgBase + "should be full with " + NCSubscriber.PROXIES_PER_ADMIN + " proxies.", numRealSubscribersThisAdmin, greaterThanOrEqualTo(NCSubscriber.PROXIES_PER_ADMIN));
                assertThat(msgBase + "has more proxies than allowed by 'allowedAdminOverbooking'=" + allowedAdminOverbooking + ", which may be OK.", numRealSubscribersThisAdmin, lessThanOrEqualTo(NCSubscriber.PROXIES_PER_ADMIN + allowedAdminOverbooking));
            } else {
                // We should be at the last of the admin objects, which may be only partially filled
                assertThat(msgBase + "has more proxies than allowed by 'allowedAdminOverbooking'=" + allowedAdminOverbooking + ", which may be OK.", numRealSubscribersThisAdmin, lessThanOrEqualTo(NCSubscriber.PROXIES_PER_ADMIN + allowedAdminOverbooking));
                assertThat(msgBase + "should contain all remaining proxies.", numRealSubscribersThisAdmin, equalTo(numRealSubscribersDefinedTotal - numRealSubscribersFoundTotal));
            }
            numRealSubscribersFoundTotal += numRealSubscribersThisAdmin;
        } catch (AdminNotFound ex) {
            fail("Can't get information about consumer admin #" + (i + 1) + " (ID=" + adminID + "): " + ex.toString());
        }
    }
    destroyConsumers();
}

Example 8 with IDLEntity

use of org.omg.CORBA.portable.IDLEntity in project ACS by ACS-Community.

the class AnyAide method objectToCorbaAny.

/**
	 * Converts a generic Java object to a CORBA Any. May fail.
	 * 
	 * @param obj
	 *            Object to be converted to a CORBA any
	 * @return A CORBA any with obj's data embedded within it.
	 * @throws AcsJException
	 *             Thrown if there's some problem converting the object to an
	 *             any. TODO: make sure this works with enumerations.
	 */
public Any objectToCorbaAny(Object obj) throws AcsJException {
    if (obj != null && obj.getClass().isArray()) {
        return internalArrayToCorbaAny(obj);
    }
    Any retVal = m_containerServices.getAdvancedContainerServices().getAny();
    // null case
    if (obj == null) {
        retVal.insert_Object(null);
    } else // check against string
    if (obj instanceof String) {
        retVal.insert_string((String) obj);
    } else // check against double
    if (obj instanceof Double) {
        double value = ((Double) obj).doubleValue();
        retVal.insert_double(value);
    } else // check against long - CORBA long long and unsigned long long
    if (obj instanceof Long) {
        long value = ((Long) obj).longValue();
        retVal.insert_longlong(value);
    } else // check against integer - CORBA long or unsigned long
    if (obj instanceof Integer) {
        int value = ((Integer) obj).intValue();
        retVal.insert_long(value);
    } else // check against float
    if (obj instanceof Float) {
        float value = ((Float) obj).floatValue();
        retVal.insert_float(value);
    } else if (obj instanceof IDLEntity) {
        // and that this method will work.
        return complexObjectToCorbaAny((IDLEntity) obj);
    } else {
        Throwable cause = new Throwable("Bad arg of type " + obj.getClass().getName());
        throw new AcsJBadParameterEx(cause);
    }
    return retVal;
}

Example 9 with IDLEntity

use of org.omg.CORBA.portable.IDLEntity in project ACS by ACS-Community.

the class EventSupplierImpl method initialize.

/** Sets up the NCPublisher.
	 * @param containerServices Services to components.
	 * @throws ComponentLifecycleException Not thrown.
	 */
public void initialize(ContainerServices containerServices) throws ComponentLifecycleException {
    super.initialize(containerServices);
    try {
        //Instantiate our supplier
        AcsEventPublisher<IDLEntity> pubIF = containerServices.createNotificationChannelPublisher("blar", IDLEntity.class);
        // For special testing, we cast to the expected publisher impl class (normally not needed)
        m_supplier = (NCPublisher<IDLEntity>) pubIF;
        m_logger.info("NCPublisher for 'blar' channel created.");
    } catch (Exception e) {
        throw new ComponentLifecycleException(e);
    }
}