org.springmodules.cache.config.MethodMapInterceptorsParser.java Source code

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Here is the source code for org.springmodules.cache.config.MethodMapInterceptorsParser.java

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/* 
 * Created on Feb 26, 2006
 *
 * 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.
 *
 * Copyright @2006 the original author or authors.
 */
package org.springmodules.cache.config;

import org.w3c.dom.Element;

import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.ParserContext;

import org.springmodules.cache.interceptor.caching.MethodMapCachingInterceptor;
import org.springmodules.cache.interceptor.flush.MethodMapFlushingInterceptor;

/**
 * <p>
 * Template that handles the parsing of the XML tag "methodMapInterceptors".
 * Creates and registers instances of
 * <code>{@link MethodMapCachingInterceptor}</code> and
 * <code>{@link MethodMapFlushingInterceptor}</code> which can be used with
 * <code>{@link org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator}</code>
 * </p>
 * 
 * @author Alex Ruiz
 */
public final class MethodMapInterceptorsParser extends AbstractCacheSetupStrategyParser {

    private static final String CACHE_MODEL_KEY = "methodFQN";

    /**
     * @see AbstractCacheSetupStrategyParser#getCacheModelKey()
     */
    protected String getCacheModelKey() {
        return CACHE_MODEL_KEY;
    }

    /**
     * Creates and registers instances
     * <code>{@link MethodMapCachingInterceptor}</code> and
     * <code>{@link MethodMapFlushingInterceptor}</code> by parsing the given
     * XML element.
     * 
     * @param element
     *          the XML element to parse
     * @param parserContext
     *          the registry of bean definitions
     * @param propertySource
     *          contains common properties for the different cache setup
     *          strategies
     * 
     * @see AbstractCacheSetupStrategyParser#parseCacheSetupStrategy(Element,
     *      ParserContext, CacheSetupStrategyPropertySource)
     */
    protected void parseCacheSetupStrategy(Element element, ParserContext parserContext,
            CacheSetupStrategyPropertySource propertySource) {

        BeanDefinitionRegistry registry = parserContext.getRegistry();

        String cachingInterceptorId = element.getAttribute("cachingInterceptorId");
        registerCachingInterceptor(cachingInterceptorId, registry, propertySource);

        String flushingInterceptorId = element.getAttribute("flushingInterceptorId");
        registerFlushingInterceptor(flushingInterceptorId, registry, propertySource);
    }

    private void registerCachingInterceptor(String cachingInterceptorId, BeanDefinitionRegistry registry,
            CacheSetupStrategyPropertySource propertySource) {

        MutablePropertyValues propertyValues = new MutablePropertyValues();

        RootBeanDefinition cachingInterceptor = new RootBeanDefinition(MethodMapCachingInterceptor.class,
                propertyValues);

        propertyValues.addPropertyValue(propertySource.getCacheKeyGeneratorProperty());
        propertyValues.addPropertyValue(propertySource.getCacheProviderFacadeProperty());
        propertyValues.addPropertyValue(propertySource.getCachingListenersProperty());
        propertyValues.addPropertyValue(propertySource.getCachingModelsProperty());

        registry.registerBeanDefinition(cachingInterceptorId, cachingInterceptor);
    }

    private void registerFlushingInterceptor(String flushingInterceptorId, BeanDefinitionRegistry registry,
            CacheSetupStrategyPropertySource propertySource) {

        MutablePropertyValues propertyValues = new MutablePropertyValues();

        RootBeanDefinition flushingInterceptor = new RootBeanDefinition(MethodMapFlushingInterceptor.class,
                propertyValues);

        propertyValues.addPropertyValue(propertySource.getCacheProviderFacadeProperty());
        propertyValues.addPropertyValue(propertySource.getFlushingModelsProperty());

        registry.registerBeanDefinition(flushingInterceptorId, flushingInterceptor);
    }
}