org.synyx.hera.si.config.DynamicServiceActivatorParser.java Source code

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Here is the source code for org.synyx.hera.si.config.DynamicServiceActivatorParser.java

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/*
 * Copyright 2011 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.synyx.hera.si.config;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.config.xml.AbstractConsumerEndpointParser;
import org.springframework.util.StringUtils;
import org.synyx.hera.core.support.PluginRegistryFactoryBean;
import org.synyx.hera.si.PluginRegistryAwareMessageHandler;
import org.w3c.dom.Element;

/**
 * {@link BeanDefinitionParser} to create {@link PluginRegistryAwareMessageHandler} beans.
 *
 * @author Oliver Gierke
 */
public class DynamicServiceActivatorParser extends AbstractConsumerEndpointParser {

    /*
     * (non-Javadoc)
     * @see org.springframework.integration.config.xml.AbstractConsumerEndpointParser#parseHandler(org.w3c.dom.Element, org.springframework.beans.factory.xml.ParserContext)
     */
    @Override
    protected BeanDefinitionBuilder parseHandler(Element element, ParserContext parserContext) {

        Object source = parserContext.extractSource(element);

        String pluginType = element.getAttribute("plugin-type");
        String method = element.getAttribute("method");

        BeanDefinitionBuilder builder = BeanDefinitionBuilder
                .rootBeanDefinition(PluginRegistryAwareMessageHandler.class);
        builder.addConstructorArgValue(getRegistryBeanDefinition(pluginType, source));
        builder.addConstructorArgValue(pluginType);
        builder.addConstructorArgValue(method);

        String delimiter = element.getAttribute("delimiter");

        if (StringUtils.hasText(delimiter)) {
            builder.addPropertyValue("delimiterExpression", delimiter);
        }

        String invocationArguments = element.getAttribute("invocation-arguments");

        if (StringUtils.hasText(invocationArguments)) {
            builder.addPropertyValue("invocationArgumentsExpression", invocationArguments);
        }

        AbstractBeanDefinition definition = builder.getBeanDefinition();
        definition.setSource(source);

        return builder;
    }

    /**
     * Creates a {@link BeanDefinition} for a {@link PluginRegistryFactoryBean}.
     * 
     * @param pluginType
     * @param source
     * @return
     */
    private AbstractBeanDefinition getRegistryBeanDefinition(String pluginType, Object source) {

        BeanDefinitionBuilder builder = BeanDefinitionBuilder.rootBeanDefinition(PluginRegistryFactoryBean.class);
        builder.addPropertyValue("type", pluginType);

        AbstractBeanDefinition definition = builder.getBeanDefinition();
        definition.setSource(source);
        return definition;
    }
}