/*
* Copyright 2012 Tacit Knowledge.
*
* 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 com.tacitknowledge.flip.spring.config;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import com.tacitknowledge.flip.Environment;
import com.tacitknowledge.flip.FeatureServiceDirectFactory;
import com.tacitknowledge.flip.spring.FlipSpringAspect;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.RuntimeBeanNameReference;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;
/**
* Parses the <code><flip:feature-service /></code> declaration in
* Spring XML based context.
*
* This Spring Context tag could contain <code>environment</code> attribute
* which references to {@link Environment} bean. Also it could contain
* <code><context-providers></code> tag with nested Context Providers beans
* declarations or references to them. In the same style you can set up
* the property readers in <code><property-readers></code>. And in nested tag
* <code><properties></code> with nested <code>bean:prop</code> elements.
*
* @author Serghei Soloviov <ssoloviov@tacitknowledge.com>
*/
public class FeatureServiceHandlerParser extends AbstractBeanDefinitionParser {
@Override
protected AbstractBeanDefinition parseInternal(Element element, ParserContext parserContext) {
BeanDefinitionBuilder factoryBuilder = BeanDefinitionBuilder.rootBeanDefinition(FeatureServiceDirectFactory.class);
RootBeanDefinition factoryBean = (RootBeanDefinition) factoryBuilder.getBeanDefinition();
parserContext.getRegistry().registerBeanDefinition(FlipSpringAspect.FEATURE_SERVICE_FACTORY_BEAN_NAME, factoryBean);
MutablePropertyValues factoryPropertyValues = new MutablePropertyValues();
factoryBean.setPropertyValues(factoryPropertyValues);
String environmentBean = element.getAttribute("environment");
if (environmentBean != null && !environmentBean.isEmpty()) {
factoryPropertyValues.addPropertyValue("environment", new RuntimeBeanNameReference(environmentBean));
}
Element contextProvidersElement = DomUtils.getChildElementByTagName(element, "context-providers");
if (contextProvidersElement != null) {
List contextProvidersList = parserContext.getDelegate().parseListElement(contextProvidersElement, factoryBean);
if (contextProvidersList != null && !contextProvidersList.isEmpty()) {
factoryPropertyValues.addPropertyValue("contextProviders", contextProvidersList);
}
}
Element propertyReadersElement = DomUtils.getChildElementByTagName(element, "property-readers");
if (propertyReadersElement != null && propertyReadersElement.hasChildNodes()) {
List propertyReadersList = parserContext.getDelegate().parseListElement(propertyReadersElement, factoryBean);
if (propertyReadersList != null && !propertyReadersList.isEmpty()) {
factoryPropertyValues.addPropertyValue("propertyReaders", propertyReadersList);
}
}
Element propertiesElement = DomUtils.getChildElementByTagName(element, "properties");
if (propertiesElement != null && propertiesElement.hasChildNodes()) {
Properties properties = parserContext.getDelegate().parsePropsElement(propertiesElement);
if (properties != null && !properties.isEmpty()) {
factoryPropertyValues.addPropertyValue("properties", properties);
}
}
BeanDefinitionBuilder featureServiceBuilder = BeanDefinitionBuilder.genericBeanDefinition();
BeanDefinition featureServiceRawBean = featureServiceBuilder.getRawBeanDefinition();
featureServiceRawBean.setFactoryBeanName(FlipSpringAspect.FEATURE_SERVICE_FACTORY_BEAN_NAME);
featureServiceRawBean.setFactoryMethodName("createFeatureService");
parserContext.getRegistry().registerBeanDefinition(FlipSpringAspect.FEATURE_SERVICE_BEAN_NAME, featureServiceBuilder.getBeanDefinition());
return null;
}
}