| /* |
| * 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.kamelet; |
| |
| import org.apache.camel.AsyncCallback; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.support.DefaultAsyncProducer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| final class KameletProducer extends DefaultAsyncProducer { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(KameletProducer.class); |
| |
| private volatile KameletConsumer consumer; |
| private int stateCounter; |
| |
| private final KameletEndpoint endpoint; |
| private final KameletComponent component; |
| private final String key; |
| private final boolean block; |
| private final long timeout; |
| |
| public KameletProducer(KameletEndpoint endpoint, String key) { |
| super(endpoint); |
| this.endpoint = endpoint; |
| this.component = endpoint.getComponent(); |
| this.key = key; |
| this.block = endpoint.isBlock(); |
| this.timeout = endpoint.getTimeout(); |
| } |
| |
| @Override |
| public void process(Exchange exchange) throws Exception { |
| if (consumer == null || stateCounter != component.getStateCounter()) { |
| stateCounter = component.getStateCounter(); |
| consumer = component.getConsumer(key, block, timeout); |
| } |
| if (consumer == null) { |
| if (endpoint.isFailIfNoConsumers()) { |
| throw new KameletConsumerNotAvailableException("No consumers available on endpoint: " + endpoint, exchange); |
| } else { |
| LOG.debug("message ignored, no consumers available on endpoint: {}", endpoint); |
| } |
| } else { |
| consumer.getProcessor().process(exchange); |
| } |
| } |
| |
| @Override |
| public boolean process(Exchange exchange, AsyncCallback callback) { |
| try { |
| if (consumer == null || stateCounter != component.getStateCounter()) { |
| stateCounter = component.getStateCounter(); |
| consumer = component.getConsumer(key, block, timeout); |
| } |
| if (consumer == null) { |
| if (endpoint.isFailIfNoConsumers()) { |
| exchange.setException(new KameletConsumerNotAvailableException( |
| "No consumers available on endpoint: " + endpoint, exchange)); |
| } else { |
| LOG.debug("message ignored, no consumers available on endpoint: {}", endpoint); |
| } |
| callback.done(true); |
| return true; |
| } else { |
| return consumer.getAsyncProcessor().process(exchange, callback); |
| } |
| } catch (Exception e) { |
| exchange.setException(e); |
| callback.done(true); |
| return true; |
| } |
| } |
| |
| } |