| /* |
| * 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.rocketmq.spring.support; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.springframework.messaging.converter.ByteArrayMessageConverter; |
| import org.springframework.messaging.converter.CompositeMessageConverter; |
| import org.springframework.messaging.converter.MappingJackson2MessageConverter; |
| import org.springframework.messaging.converter.MessageConverter; |
| import org.springframework.messaging.converter.StringMessageConverter; |
| import org.springframework.util.ClassUtils; |
| |
| /** |
| * @see MessageConverter |
| * @see CompositeMessageConverter |
| */ |
| public class RocketMQMessageConverter { |
| |
| private static final boolean JACKSON_PRESENT; |
| private static final boolean FASTJSON_PRESENT; |
| |
| static { |
| ClassLoader classLoader = RocketMQMessageConverter.class.getClassLoader(); |
| JACKSON_PRESENT = |
| ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) && |
| ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader); |
| FASTJSON_PRESENT = ClassUtils.isPresent("com.alibaba.fastjson.JSON", classLoader) && |
| ClassUtils.isPresent("com.alibaba.fastjson.support.config.FastJsonConfig", classLoader); |
| } |
| |
| private final CompositeMessageConverter messageConverter; |
| |
| public RocketMQMessageConverter() { |
| List<MessageConverter> messageConverters = new ArrayList<>(); |
| ByteArrayMessageConverter byteArrayMessageConverter = new ByteArrayMessageConverter(); |
| byteArrayMessageConverter.setContentTypeResolver(null); |
| messageConverters.add(byteArrayMessageConverter); |
| messageConverters.add(new StringMessageConverter()); |
| if (JACKSON_PRESENT) { |
| messageConverters.add(new MappingJackson2MessageConverter()); |
| } |
| if (FASTJSON_PRESENT) { |
| try { |
| messageConverters.add( |
| (MessageConverter)ClassUtils.forName( |
| "com.alibaba.fastjson.support.spring.messaging.MappingFastJsonMessageConverter", |
| ClassUtils.getDefaultClassLoader()).newInstance()); |
| } catch (ClassNotFoundException | IllegalAccessException | InstantiationException ignored) { |
| //ignore this exception |
| } |
| } |
| messageConverter = new CompositeMessageConverter(messageConverters); |
| } |
| |
| public MessageConverter getMessageConverter() { |
| return messageConverter; |
| } |
| |
| } |