Examples with UTF8Buffer org.fusesource.hawtbuf.UTF8Buffer used on opensource projects

Example 1 with UTF8Buffer

use of org.fusesource.hawtbuf.UTF8Buffer in project camel by apache.

the class MQTTEndpoint method createConnection.

protected void createConnection() {
    connection = configuration.callbackConnection();
    connection.listener(new Listener() {

        public void onConnected() {
            connected = true;
            LOG.info("MQTT Connection connected to {}", configuration.getHost());
        }

        public void onDisconnected() {
            // no connected = false required here because the MQTT client should trigger its own reconnect;
            // setting connected = false would make the publish() method to launch a new connection while the original
            // one is still reconnecting, likely leading to duplicate messages as observed in CAMEL-9092;
            // if retries are exhausted and it desists, we should get a callback on onFailure, and then we can set
            // connected = false safely
            LOG.debug("MQTT Connection disconnected from {}", configuration.getHost());
        }

        public void onPublish(UTF8Buffer topic, Buffer body, Runnable ack) {
            if (!consumers.isEmpty()) {
                Exchange exchange = createExchange();
                exchange.getIn().setBody(body.toByteArray());
                exchange.getIn().setHeader(MQTTConfiguration.MQTT_SUBSCRIBE_TOPIC, topic.toString());
                for (MQTTConsumer consumer : consumers) {
                    consumer.processExchange(exchange);
                }
            }
            if (ack != null) {
                ack.run();
            }
        }

        public void onFailure(Throwable value) {
            // mark this connection as disconnected so we force re-connect
            connected = false;
            LOG.warn("Connection to " + configuration.getHost() + " failure due " + value.getMessage() + ". Forcing a disconnect to re-connect on next attempt.");
            connection.disconnect(new Callback<Void>() {

                public void onSuccess(Void value) {
                }

                public void onFailure(Throwable e) {
                    LOG.debug("Failed to disconnect from " + configuration.getHost() + ". This exception is ignored.", e);
                }
            });
        }
    });
}

Example 2 with UTF8Buffer

use of org.fusesource.hawtbuf.UTF8Buffer in project fabric8 by jboss-fuse.

the class ClientInvokerImpl method getMethodData.

private MethodData getMethodData(Method method) throws IOException {
    MethodData rc = null;
    synchronized (method_cache) {
        rc = method_cache.get(method);
    }
    if (rc == null) {
        StringBuilder sb = new StringBuilder();
        sb.append(method.getName());
        sb.append(",");
        Class<?>[] types = method.getParameterTypes();
        for (int i = 0; i < types.length; i++) {
            if (i != 0) {
                sb.append(",");
            }
            sb.append(encodeClassName(types[i]));
        }
        Buffer signature = new UTF8Buffer(sb.toString()).buffer();
        Serialization annotation = method.getAnnotation(Serialization.class);
        SerializationStrategy serializationStrategy;
        if (annotation != null) {
            serializationStrategy = serializationStrategies.get(annotation.value());
            if (serializationStrategy == null) {
                throw new RuntimeException("Could not find the serialization strategy named: " + annotation.value());
            }
        } else {
            serializationStrategy = ObjectSerializationStrategy.INSTANCE;
        }
        final InvocationStrategy strategy;
        if (AsyncInvocationStrategy.isAsyncMethod(method)) {
            strategy = AsyncInvocationStrategy.INSTANCE;
        } else {
            strategy = BlockingInvocationStrategy.INSTANCE;
        }
        rc = new MethodData(strategy, serializationStrategy, signature);
        synchronized (method_cache) {
            method_cache.put(method, rc);
        }
    }
    return rc;
}

Example 3 with UTF8Buffer

use of org.fusesource.hawtbuf.UTF8Buffer in project fabric8 by jboss-fuse.

the class ClientInvokerImpl method request.

protected Object request(ProxyInvocationHandler handler, final String address, final UTF8Buffer service, final ClassLoader classLoader, final Method method, final Object[] args) throws Exception {
    if (!running.get()) {
        throw new IllegalStateException("DOSGi Client stopped");
    }
    final long correlation = correlationGenerator.incrementAndGet();
    // Encode the request before we try to pass it onto
    // IO layers so that #1 we can report encoding error back to the caller
    // and #2 reduce CPU load done in the execution queue since it's
    // serially executed.
    DataByteArrayOutputStream baos = new DataByteArrayOutputStream((int) (handler.lastRequestSize * 1.10));
    // we don't know the size yet...
    baos.writeInt(0);
    baos.writeVarLong(correlation);
    writeBuffer(baos, service);
    MethodData methodData = getMethodData(method);
    writeBuffer(baos, methodData.signature);
    final ResponseFuture future = methodData.invocationStrategy.request(methodData.serializationStrategy, classLoader, method, args, baos);
    // toBuffer() is better than toByteArray() since it avoids an
    // array copy.
    final Buffer command = baos.toBuffer();
    // Update the field size.
    BufferEditor editor = command.buffer().bigEndianEditor();
    editor.writeInt(command.length);
    handler.lastRequestSize = command.length;
    queue().execute(new Runnable() {

        public void run() {
            try {
                TransportPool pool = transports.get(address);
                if (pool == null) {
                    pool = new InvokerTransportPool(address, queue());
                    transports.put(address, pool);
                    pool.start();
                }
                requests.put(correlation, future);
                pool.offer(command, correlation);
            } catch (Exception e) {
                LOGGER.info("Error while sending request", e);
                future.fail(e);
            }
        }
    });
    // TODO: make that configurable, that's only for tests
    return future.get(timeout, TimeUnit.MILLISECONDS);
}

Example 4 with UTF8Buffer

use of org.fusesource.hawtbuf.UTF8Buffer in project fabric8 by jboss-fuse.

the class BaseDataStreamMarshaller method looseMarshalThrowable.

protected void looseMarshalThrowable(OpenWireFormat wireFormat, Throwable o, DataByteArrayOutputStream dataOut) throws IOException {
    dataOut.writeBoolean(o != null);
    if (o != null) {
        String className = o instanceof OpenwireException ? ((OpenwireException) o).getClassName() : o.getClass().getName();
        looseMarshalString(new UTF8Buffer(className), dataOut);
        looseMarshalString(new UTF8Buffer(o.getMessage()), dataOut);
        if (wireFormat.isStackTraceEnabled()) {
            StackTraceElement[] stackTrace = o.getStackTrace();
            dataOut.writeShort(stackTrace.length);
            for (int i = 0; i < stackTrace.length; i++) {
                StackTraceElement element = stackTrace[i];
                looseMarshalString(new UTF8Buffer(element.getClassName()), dataOut);
                looseMarshalString(new UTF8Buffer(element.getMethodName()), dataOut);
                looseMarshalString(new UTF8Buffer(element.getFileName()), dataOut);
                dataOut.writeInt(element.getLineNumber());
            }
            looseMarshalThrowable(wireFormat, o.getCause(), dataOut);
        }
    }
}

Example 5 with UTF8Buffer

use of org.fusesource.hawtbuf.UTF8Buffer in project fabric8 by jboss-fuse.

the class BaseDataStreamMarshaller method tightUnmarsalThrowable.

protected Throwable tightUnmarsalThrowable(OpenWireFormat wireFormat, DataByteArrayInputStream dataIn, BooleanStream bs) throws IOException {
    if (bs.readBoolean()) {
        UTF8Buffer clazz = tightUnmarshalString(dataIn, bs);
        UTF8Buffer message = tightUnmarshalString(dataIn, bs);
        Throwable o = createThrowable(clazz, message);
        if (wireFormat.isStackTraceEnabled()) {
            if (STACK_TRACE_ELEMENT_CONSTRUCTOR != null) {
                StackTraceElement[] ss = new StackTraceElement[dataIn.readShort()];
                for (int i = 0; i < ss.length; i++) {
                    try {
                        ss[i] = (StackTraceElement) STACK_TRACE_ELEMENT_CONSTRUCTOR.newInstance(new Object[] { tightUnmarshalString(dataIn, bs), tightUnmarshalString(dataIn, bs), tightUnmarshalString(dataIn, bs), Integer.valueOf(dataIn.readInt()) });
                    } catch (IOException e) {
                        throw e;
                    } catch (Throwable e) {
                    }
                }
                o.setStackTrace(ss);
            } else {
                short size = dataIn.readShort();
                for (int i = 0; i < size; i++) {
                    tightUnmarshalString(dataIn, bs);
                    tightUnmarshalString(dataIn, bs);
                    tightUnmarshalString(dataIn, bs);
                    dataIn.readInt();
                }
            }
            o.initCause(tightUnmarsalThrowable(wireFormat, dataIn, bs));
        }
        return o;
    } else {
        return null;
    }
}