001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.spring;
022    
023    import java.util.List;
024    
025    import org.springframework.beans.factory.support.BeanDefinitionBuilder;
026    import org.springframework.beans.factory.support.ManagedList;
027    import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
028    import org.springframework.beans.factory.xml.ParserContext;
029    import org.springframework.core.Conventions;
030    import org.springframework.util.StringUtils;
031    import org.springframework.util.xml.DomUtils;
032    import org.w3c.dom.Element;
033    
034    /**
035     * @author William Drai
036     */
037    public class ActiveMQTopicDestinationBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
038    
039        @Override
040        @SuppressWarnings("unchecked")
041        protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
042            builder.setLazyInit(false);
043            
044            mapOptionalAttributes(element, parserContext, builder, "id", "name", "connection-factory", "jndi-name", "destination-jndi-name",
045                            "acknowledge-mode", "transacted-sessions", "no-local", "session-selector", "broker-url", "create-broker", 
046                            "wait-for-start", "durable", "file-store-root");
047            
048            Object sourceElement = parserContext.extractSource(element);
049            ManagedList roles = new ManagedList();
050            roles.setSource(sourceElement);
051            List<Element> rolesElements = DomUtils.getChildElementsByTagName(element, "roles");
052            for (Element rolesElement : rolesElements) {
053                List<Element> valueElements = DomUtils.getChildElementsByTagName(rolesElement, "role");
054                for (Element valueElement : valueElements)
055                    roles.add(valueElement.getTextContent());
056            }
057            if (!roles.isEmpty())
058                    builder.addPropertyValue("roles", roles);        
059        }
060    
061        @Override
062        protected String getBeanClassName(Element element) {
063            return "org.granite.spring.ActiveMQTopicDestination";
064        }
065    
066        static void mapOptionalAttributes(Element element, ParserContext parserContext, BeanDefinitionBuilder builder, String... attrs) {
067            for (String attr : attrs) {
068                String value = element.getAttribute(attr);
069                if (StringUtils.hasText(value)) {
070                    String propertyName = Conventions.attributeNameToPropertyName(attr);
071                    if (validateProperty(element, parserContext, propertyName, attr)) {
072                        builder.addPropertyValue(propertyName, value);
073                    }
074                }
075            }
076        }
077    
078        private static boolean validateProperty(Element element, ParserContext parserContext, String propertyName, String attr) {
079            if (!StringUtils.hasText(propertyName)) {
080                parserContext.getReaderContext().error(
081                    "Illegal property name trying to convert from attribute '" + attr + "' : cannot be null or empty.",
082                    parserContext.extractSource(element));
083                return false;
084            }
085            return true;
086        }
087    }