org.springjutsu.validation.namespace.ValidationMVCAnnotationsDefinitionParser.java Source code

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Here is the source code for org.springjutsu.validation.namespace.ValidationMVCAnnotationsDefinitionParser.java

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/*
 * Copyright 2010-2013 Duplichien, Wicksell, Springjutsu.org
 *
 * 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.springjutsu.validation.namespace;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.BeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.web.servlet.handler.MappedInterceptor;
import org.springjutsu.validation.mvc.SuccessViewHandlerInterceptor;
import org.springjutsu.validation.mvc.ValidationFailureViewHandlerExceptionResolver;
import org.w3c.dom.Element;

/**
 * Parses the validation namespace "mvc-annotations" element
 * into all the beans and registrations required in order to configure
 * use of the @link{SuccessView} and @link{ValidationFailureView} annotations. 
 * @author Clark Duplichien
 *
 */
public class ValidationMVCAnnotationsDefinitionParser implements BeanDefinitionParser {

    /**
     * Do actual parsing.
     */
    public BeanDefinition parse(Element configNode, ParserContext context) {

        BeanDefinitionBuilder successViewHandlerBuilder = BeanDefinitionBuilder
                .genericBeanDefinition(SuccessViewHandlerInterceptor.class);
        BeanDefinitionBuilder validationFailureViewHandlerBuilder = BeanDefinitionBuilder
                .genericBeanDefinition(ValidationFailureViewHandlerExceptionResolver.class);
        BeanDefinitionBuilder successViewHandlerMapperBuilder = BeanDefinitionBuilder
                .genericBeanDefinition(MappedInterceptor.class);

        // Register them beans.
        registerInfrastructureBean(configNode, context, validationFailureViewHandlerBuilder);
        String successViewBeanName = registerInfrastructureBean(configNode, context, successViewHandlerBuilder);
        String[] successViewMappings = new String[] { "/**" };
        // Map success view handler
        successViewHandlerMapperBuilder.addConstructorArgValue(successViewMappings);
        successViewHandlerMapperBuilder.addConstructorArgReference(successViewBeanName);
        registerInfrastructureBean(configNode, context, successViewHandlerMapperBuilder);

        return null;
    }

    private String registerInfrastructureBean(Element element, ParserContext context,
            BeanDefinitionBuilder componentBuilder) {

        BeanDefinition definition = componentBuilder.getBeanDefinition();
        String entityName = context.getReaderContext().registerWithGeneratedName(definition);
        context.registerComponent(new BeanComponentDefinition(definition, entityName));
        return entityName;
    }

}