| /** |
| * 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.vertx; |
| |
| import io.vertx.core.AsyncResult; |
| import io.vertx.core.Handler; |
| import io.vertx.core.eventbus.EventBus; |
| import io.vertx.core.eventbus.Message; |
| import org.apache.camel.AsyncCallback; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.InvalidPayloadRuntimeException; |
| import org.apache.camel.impl.DefaultAsyncProducer; |
| import org.apache.camel.util.ExchangeHelper; |
| import org.apache.camel.util.MessageHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import static org.apache.camel.component.vertx.VertxHelper.getVertxBody; |
| |
| public class VertxProducer extends DefaultAsyncProducer { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(VertxProducer.class); |
| |
| public VertxProducer(VertxEndpoint endpoint) { |
| super(endpoint); |
| } |
| |
| @Override |
| public VertxEndpoint getEndpoint() { |
| return (VertxEndpoint) super.getEndpoint(); |
| } |
| |
| @Override |
| public boolean process(Exchange exchange, AsyncCallback callback) { |
| EventBus eventBus = getEndpoint().getEventBus(); |
| if (eventBus == null) { |
| exchange.setException(new IllegalStateException("EventBus is not started or not configured")); |
| callback.done(true); |
| return true; |
| } |
| |
| String address = getEndpoint().getAddress(); |
| |
| boolean reply = ExchangeHelper.isOutCapable(exchange); |
| boolean pubSub = getEndpoint().isPubSub(); |
| |
| Object body = getVertxBody(exchange); |
| if (body != null) { |
| if (reply) { |
| LOG.debug("Sending to: {} with body: {}", address, body); |
| eventBus.send(address, body, new CamelReplyHandler(exchange, callback)); |
| return false; |
| } else { |
| if (pubSub) { |
| LOG.debug("Publishing to: {} with body: {}", address, body); |
| eventBus.publish(address, body); |
| } else { |
| LOG.debug("Sending to: {} with body: {}", address, body); |
| eventBus.send(address, body); |
| } |
| callback.done(true); |
| return true; |
| } |
| } |
| |
| exchange.setException(new InvalidPayloadRuntimeException(exchange, String.class)); |
| callback.done(true); |
| return true; |
| } |
| |
| private static final class CamelReplyHandler implements Handler<AsyncResult<Message<Object>>> { |
| |
| private final Exchange exchange; |
| private final AsyncCallback callback; |
| |
| private CamelReplyHandler(Exchange exchange, AsyncCallback callback) { |
| this.exchange = exchange; |
| this.callback = callback; |
| } |
| |
| @Override |
| public void handle(AsyncResult<Message<Object>> event) { |
| try { |
| // preserve headers |
| MessageHelper.copyHeaders(exchange.getIn(), exchange.getOut(), false); |
| Throwable e = event.cause(); |
| if (e != null) { |
| exchange.setException(e); |
| } else { |
| exchange.getOut().setBody(event.result().body()); |
| } |
| } finally { |
| callback.done(false); |
| } |
| } |
| |
| } |
| } |