org.apache.camel.component.springrabbit.AllowNullBodyMessageConverter Maven / Gradle / Ivy

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/*
 * 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.springrabbit;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageProperties;
import org.springframework.amqp.support.converter.MessageConversionException;
import org.springframework.amqp.support.converter.MessageConverter;

public class AllowNullBodyMessageConverter implements MessageConverter {

    private final MessageConverter converter;

    public AllowNullBodyMessageConverter(MessageConverter converter) {
        this.converter = converter;
    }

    @Override
    public Message toMessage(Object object, MessageProperties messageProperties) throws MessageConversionException {
        if (object == null) {
            // cannot use null so use an empty array
            byte[] empty = new byte[0];
            return new Message(empty, messageProperties);
        }
        return converter.toMessage(object, messageProperties);
    }

    @Override
    public Object fromMessage(Message message) throws MessageConversionException {
        return converter.fromMessage(message);
    }
}