Examples with Producer org.apache.camel.Producer used on opensource projects

Example 26 with Producer

use of org.apache.camel.Producer in project camel by apache.

the class DataSetEndpoint method createProducer.

@Override
public Producer createProducer() throws Exception {
    Producer answer = super.createProducer();
    long size = getDataSet().getSize();
    expectedMessageCount((int) size);
    return answer;
}

Example 27 with Producer

use of org.apache.camel.Producer in project camel by apache.

the class ProducerCache method doInProducer.

/**
     * Sends an exchange to an endpoint using a supplied callback, using the synchronous processing.
     * <p/>
     * If an exception was thrown during processing, it would be set on the given Exchange
     *
     * @param endpoint  the endpoint to send the exchange to
     * @param exchange  the exchange, can be <tt>null</tt> if so then create a new exchange from the producer
     * @param pattern   the exchange pattern, can be <tt>null</tt>
     * @param callback  the callback
     * @return the response from the callback
     * @see #doInAsyncProducer(org.apache.camel.Endpoint, org.apache.camel.Exchange, org.apache.camel.ExchangePattern, org.apache.camel.AsyncCallback, org.apache.camel.AsyncProducerCallback)
     */
public <T> T doInProducer(Endpoint endpoint, Exchange exchange, ExchangePattern pattern, ProducerCallback<T> callback) {
    T answer = null;
    // get the producer and we do not mind if its pooled as we can handle returning it back to the pool
    Producer producer = doGetProducer(endpoint, true);
    if (producer == null) {
        if (isStopped()) {
            LOG.warn("Ignoring exchange sent after processor is stopped: " + exchange);
            return null;
        } else {
            throw new IllegalStateException("No producer, this processor has not been started: " + this);
        }
    }
    try {
        // invoke the callback
        answer = callback.doInProducer(producer, exchange, pattern);
    } catch (Throwable e) {
        if (exchange != null) {
            exchange.setException(e);
        }
    } finally {
        if (producer instanceof ServicePoolAware) {
            // release back to the pool
            pool.release(endpoint, producer);
        } else if (!producer.isSingleton()) {
            // stop and shutdown non-singleton producers as we should not leak resources
            try {
                ServiceHelper.stopAndShutdownService(producer);
            } catch (Exception e) {
                // ignore and continue
                LOG.warn("Error stopping/shutting down producer: " + producer, e);
            }
        }
    }
    return answer;
}

Example 28 with Producer

use of org.apache.camel.Producer in project camel by apache.

the class ProducerCache method doInAsyncProducer.

/**
     * Sends an exchange to an endpoint using a supplied callback supporting the asynchronous routing engine.
     * <p/>
     * If an exception was thrown during processing, it would be set on the given Exchange
     *
     * @param endpoint         the endpoint to send the exchange to
     * @param exchange         the exchange, can be <tt>null</tt> if so then create a new exchange from the producer
     * @param pattern          the exchange pattern, can be <tt>null</tt>
     * @param callback         the asynchronous callback
     * @param producerCallback the producer template callback to be executed
     * @return (doneSync) <tt>true</tt> to continue execute synchronously, <tt>false</tt> to continue being executed asynchronously
     */
public boolean doInAsyncProducer(final Endpoint endpoint, final Exchange exchange, final ExchangePattern pattern, final AsyncCallback callback, final AsyncProducerCallback producerCallback) {
    Producer target;
    try {
        // get the producer and we do not mind if its pooled as we can handle returning it back to the pool
        target = doGetProducer(endpoint, true);
        if (target == null) {
            if (isStopped()) {
                LOG.warn("Ignoring exchange sent after processor is stopped: " + exchange);
                callback.done(true);
                return true;
            } else {
                exchange.setException(new IllegalStateException("No producer, this processor has not been started: " + this));
                callback.done(true);
                return true;
            }
        }
    } catch (Throwable e) {
        exchange.setException(e);
        callback.done(true);
        return true;
    }
    final Producer producer = target;
    // record timing for sending the exchange using the producer
    final StopWatch watch = eventNotifierEnabled && exchange != null ? new StopWatch() : null;
    try {
        if (eventNotifierEnabled && exchange != null) {
            EventHelper.notifyExchangeSending(exchange.getContext(), exchange, endpoint);
        }
        // invoke the callback
        AsyncProcessor asyncProcessor = AsyncProcessorConverterHelper.convert(producer);
        return producerCallback.doInAsyncProducer(producer, asyncProcessor, exchange, pattern, doneSync -> {
            try {
                if (eventNotifierEnabled && watch != null) {
                    long timeTaken = watch.stop();
                    EventHelper.notifyExchangeSent(exchange.getContext(), exchange, endpoint, timeTaken);
                }
                if (producer instanceof ServicePoolAware) {
                    pool.release(endpoint, producer);
                } else if (!producer.isSingleton()) {
                    try {
                        ServiceHelper.stopAndShutdownService(producer);
                    } catch (Exception e) {
                        LOG.warn("Error stopping/shutting down producer: " + producer, e);
                    }
                }
            } finally {
                callback.done(doneSync);
            }
        });
    } catch (Throwable e) {
        // ensure exceptions is caught and set on the exchange
        if (exchange != null) {
            exchange.setException(e);
        }
        callback.done(true);
        return true;
    }
}

Example 29 with Producer

use of org.apache.camel.Producer in project camel by apache.

the class ProducerCache method getCapacity.

/**
     * Gets the maximum cache size (capacity).
     * <p/>
     * Will return <tt>-1</tt> if it cannot determine this if a custom cache was used.
     *
     * @return the capacity
     */
public int getCapacity() {
    int capacity = -1;
    if (producers instanceof LRUCache) {
        LRUCache<String, Producer> cache = (LRUCache<String, Producer>) producers;
        capacity = cache.getMaxCacheSize();
    }
    return capacity;
}

Example 30 with Producer

use of org.apache.camel.Producer in project camel by apache.

the class ProducerCache method doGetProducer.

protected synchronized Producer doGetProducer(Endpoint endpoint, boolean pooled) {
    String key = endpoint.getEndpointUri();
    Producer answer = producers.get(key);
    if (pooled && answer == null) {
        // try acquire from connection pool
        answer = pool.acquire(endpoint);
    }
    if (answer == null) {
        // create a new producer
        try {
            answer = endpoint.createProducer();
            // add as service which will also start the service
            // (false => we and handling the lifecycle of the producer in this cache)
            getCamelContext().addService(answer, false);
        } catch (Exception e) {
            throw new FailedToCreateProducerException(endpoint, e);
        }
        // add producer to cache or pool if applicable
        if (pooled && answer instanceof ServicePoolAware) {
            LOG.debug("Adding to producer service pool with key: {} for producer: {}", endpoint, answer);
            answer = pool.addAndAcquire(endpoint, answer);
        } else if (answer.isSingleton()) {
            LOG.debug("Adding to producer cache with key: {} for producer: {}", endpoint, answer);
            producers.put(key, answer);
        }
    }
    if (answer != null) {
        // record statistics
        if (extendedStatistics) {
            statistics.onHit(key);
        }
    }
    return answer;
}