| /** |
| * 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.directvm; |
| |
| import org.apache.camel.AsyncCallback; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Message; |
| import org.apache.camel.spi.HeaderFilterStrategy; |
| import org.apache.camel.support.DefaultAsyncProducer; |
| |
| /** |
| * The Direct-VM producer. |
| */ |
| public class DirectVmProducer extends DefaultAsyncProducer { |
| |
| private DirectVmEndpoint endpoint; |
| |
| public DirectVmProducer(DirectVmEndpoint endpoint) { |
| super(endpoint); |
| this.endpoint = endpoint; |
| } |
| |
| @Override |
| public boolean process(Exchange exchange, AsyncCallback callback) { |
| // send to consumer |
| DirectVmConsumer consumer = endpoint.getComponent().getConsumer(endpoint); |
| |
| if (consumer == null) { |
| if (endpoint.isFailIfNoConsumers()) { |
| exchange.setException(new DirectVmConsumerNotAvailableException("No consumers available on endpoint: " + endpoint, exchange)); |
| } else { |
| log.debug("message ignored, no consumers available on endpoint: {}", endpoint); |
| } |
| callback.done(true); |
| return true; |
| } |
| |
| final HeaderFilterStrategy headerFilterStrategy = endpoint.getHeaderFilterStrategy(); |
| |
| // Only clone the Exchange if we actually need to filter out properties or headers. |
| final Exchange submitted = (!endpoint.isPropagateProperties() || headerFilterStrategy != null) ? exchange.copy() : exchange; |
| |
| // Clear properties in the copy if we are not propagating them. |
| if (!endpoint.isPropagateProperties()) { |
| submitted.getProperties().clear(); |
| } |
| |
| // Filter headers by Header Filter Strategy if there is one set. |
| if (headerFilterStrategy != null) { |
| submitted.getIn().getHeaders().entrySet().removeIf(e -> headerFilterStrategy.applyFilterToCamelHeaders(e.getKey(), e.getValue(), submitted)); |
| } |
| |
| return consumer.getAsyncProcessor().process(submitted, done -> { |
| Message msg = submitted.hasOut() ? submitted.getOut() : submitted.getIn(); |
| |
| if (headerFilterStrategy != null) { |
| msg.getHeaders().entrySet().removeIf(e -> headerFilterStrategy.applyFilterToExternalHeaders(e.getKey(), e.getValue(), submitted)); |
| } |
| |
| if (exchange != submitted) { |
| // only need to copy back if they are different |
| exchange.setException(submitted.getException()); |
| exchange.getOut().copyFrom(msg); |
| } |
| |
| if (endpoint.isPropagateProperties()) { |
| exchange.getProperties().putAll(submitted.getProperties()); |
| } |
| |
| callback.done(done); |
| }); |
| } |
| |
| } |