ContextResourceLoaderBeanDefinitionParser.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.context.config.xml;

import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.xml.AbstractSimpleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.core.Conventions;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;

import static org.springframework.cloud.aws.core.config.xml.XmlWebserviceConfigurationUtils.getCustomClientOrDefaultClientBeanName;

/**
 * Parser for the {@code <aws-context:context-resource-loader />} element.
 *
 * @author Agim Emruli
 * @author Alain Sahli
 * @since 1.0
 */
@SuppressWarnings({"UnusedDeclaration", "WeakerAccess"})
public class ContextResourceLoaderBeanDefinitionParser extends AbstractSimpleBeanDefinitionParser {

    private static final String AMAZON_S3_CLIENT_CLASS_NAME = "com.amazonaws.services.s3.AmazonS3Client";
    private static final String RESOURCE_LOADER_BEAN_POST_PROCESSOR = "org.springframework.cloud.aws.context.support.io.ResourceLoaderBeanPostProcessor";

    @Override
    protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
        builder.addConstructorArgReference(getCustomClientOrDefaultClientBeanName(element, parserContext, "amazon-s3", AMAZON_S3_CLIENT_CLASS_NAME));

        if (StringUtils.hasText(element.getAttribute("task-executor"))) {
            builder.addPropertyReference(Conventions.attributeNameToPropertyName("task-executor"),
                    element.getAttribute("task-executor"));
        }
    }

    @Override
    protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext) throws BeanDefinitionStoreException {
        return BeanDefinitionReaderUtils.generateBeanName(definition, parserContext.getRegistry(), false);
    }

    @Override
    protected String getBeanClassName(Element element) {
        return RESOURCE_LOADER_BEAN_POST_PROCESSOR;
    }
}