| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.routebox.seda; |
| |
| import java.util.concurrent.BlockingQueue; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.camel.AsyncCallback; |
| import org.apache.camel.AsyncProcessor; |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.ProducerTemplate; |
| import org.apache.camel.ShutdownRunningTask; |
| import org.apache.camel.component.routebox.RouteboxConsumer; |
| import org.apache.camel.component.routebox.RouteboxServiceSupport; |
| import org.apache.camel.component.routebox.strategy.RouteboxDispatcher; |
| import org.apache.camel.impl.LoggingExceptionHandler; |
| import org.apache.camel.impl.converter.AsyncProcessorTypeConverter; |
| import org.apache.camel.spi.ExceptionHandler; |
| import org.apache.camel.spi.ShutdownAware; |
| import org.apache.camel.util.AsyncProcessorHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class RouteboxSedaConsumer extends RouteboxServiceSupport implements RouteboxConsumer, Runnable, ShutdownAware { |
| private static final transient Logger LOG = LoggerFactory.getLogger(RouteboxSedaConsumer.class); |
| protected AsyncProcessor processor; |
| protected ProducerTemplate producer; |
| |
| public RouteboxSedaConsumer(RouteboxSedaEndpoint endpoint, Processor processor) { |
| super(endpoint); |
| this.setProcessor(AsyncProcessorTypeConverter.convert(processor)); |
| this.producer = endpoint.getConfig().getInnerProducerTemplate(); |
| } |
| |
| @Override |
| protected void doStart() throws Exception { |
| ((RouteboxSedaEndpoint)getRouteboxEndpoint()).onStarted(this); |
| doStartInnerContext(); |
| |
| // Create a URI link from the primary context to routes in the new inner context |
| int poolSize = getRouteboxEndpoint().getConfig().getThreads(); |
| setExecutor(getRouteboxEndpoint().getCamelContext().getExecutorServiceStrategy() |
| .newFixedThreadPool(this, getRouteboxEndpoint().getEndpointUri(), poolSize)); |
| for (int i = 0; i < poolSize; i++) { |
| getExecutor().execute(this); |
| } |
| } |
| |
| @Override |
| protected void doStop() throws Exception { |
| ((RouteboxSedaEndpoint)getRouteboxEndpoint()).onStopped(this); |
| // Shutdown the executor |
| getRouteboxEndpoint().getCamelContext().getExecutorServiceStrategy().shutdown(getExecutor()); |
| setExecutor(null); |
| |
| doStopInnerContext(); |
| } |
| |
| public void run() { |
| BlockingQueue<Exchange> queue = ((RouteboxSedaEndpoint)getRouteboxEndpoint()).getQueue(); |
| while (queue != null && isRunAllowed()) { |
| try { |
| final Exchange exchange = queue.poll(getRouteboxEndpoint().getConfig().getPollInterval(), TimeUnit.MILLISECONDS); |
| dispatchToInnerRoute(queue, exchange); |
| } catch (InterruptedException e) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Sleep interrupted, are we stopping? {}", isStopping() || isStopped()); |
| } |
| continue; |
| } |
| } |
| } |
| |
| private void dispatchToInnerRoute(BlockingQueue<Exchange> queue, final Exchange exchange) throws InterruptedException { |
| Exchange result; |
| |
| if (exchange != null) { |
| if (isRunAllowed()) { |
| try { |
| LOG.debug("Dispatching to inner route: {}", exchange); |
| RouteboxDispatcher dispatcher = new RouteboxDispatcher(producer); |
| result = dispatcher.dispatchAsync(getRouteboxEndpoint(), exchange); |
| AsyncProcessorHelper.process(processor, result, new AsyncCallback() { |
| public void done(boolean doneSync) { |
| // noop |
| } |
| }); |
| } catch (Exception e) { |
| getExceptionHandler().handleException("Error processing exchange", exchange, e); |
| } |
| } else { |
| if (LOG.isWarnEnabled()) { |
| LOG.warn("This consumer is stopped during polling an exchange, so putting it back on the seda queue: " + exchange); |
| } |
| queue.put(exchange); |
| } |
| } |
| } |
| |
| public Endpoint getEndpoint() { |
| return getRouteboxEndpoint(); |
| } |
| |
| public boolean deferShutdown(ShutdownRunningTask shutdownRunningTask) { |
| return false; |
| } |
| |
| public int getPendingExchangesSize() { |
| // TODO: Get size of queue |
| return 0; |
| } |
| |
| public void prepareShutdown() { |
| } |
| |
| public void setProcessor(AsyncProcessor processor) { |
| this.processor = processor; |
| } |
| |
| public AsyncProcessor getProcessor() { |
| return processor; |
| } |
| |
| } |