BufferedSqsClientBeanDefinitionUtils.java

/*
 * Copyright 2013-2014 the original author or authors.
 *
 * Licensed 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.springframework.cloud.aws.messaging.config.xml;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.cloud.aws.core.config.xml.XmlWebserviceConfigurationUtils;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;

/**
 * @author Alain Sahli
 * @author Agim Emruli
 */
public final class BufferedSqsClientBeanDefinitionUtils {

    public static final String SQS_CLIENT_CLASS_NAME = "com.amazonaws.services.sqs.AmazonSQSAsyncClient";
    static final String BUFFERED_SQS_CLIENT_CLASS_NAME = "com.amazonaws.services.sqs.buffered.AmazonSQSBufferedAsyncClient";

    private BufferedSqsClientBeanDefinitionUtils() {
        // Avoid instantiation
    }

    static String getCustomAmazonSqsClientOrDecoratedDefaultSqsClientBeanName(Element element, ParserContext parserContext) {
        String amazonSqsClientBeanName = XmlWebserviceConfigurationUtils.getCustomClientOrDefaultClientBeanName(element, parserContext, "amazon-sqs", SQS_CLIENT_CLASS_NAME);
        if (!StringUtils.hasText(element.getAttribute("amazon-sqs"))) {
            BeanDefinition clientBeanDefinition = parserContext.getRegistry().getBeanDefinition(amazonSqsClientBeanName);
            if (!clientBeanDefinition.getBeanClassName().equals(BUFFERED_SQS_CLIENT_CLASS_NAME)) {
                BeanDefinitionBuilder bufferedClientBeanDefinitionBuilder = BeanDefinitionBuilder.rootBeanDefinition(BUFFERED_SQS_CLIENT_CLASS_NAME);
                bufferedClientBeanDefinitionBuilder.addConstructorArgValue(clientBeanDefinition);
                parserContext.getRegistry().removeBeanDefinition(amazonSqsClientBeanName);
                parserContext.getRegistry().registerBeanDefinition(amazonSqsClientBeanName, bufferedClientBeanDefinitionBuilder.getBeanDefinition());
            }
        }
        return amazonSqsClientBeanName;
    }
}