/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.spring.factory;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.util.naming.Util;
import org.jboss.logging.Logger;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.beans.factory.xml.BeanDefinitionParserDelegate;
import org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* Named bean definition parser.
*
* @author <a href="mailto:ales.justin@genera-lynx.com">Ales Justin</a>
*/
public class NamedXmlBeanDefinitionParser extends DefaultBeanDefinitionDocumentReader implements Nameable, Instantiable
{
protected static Logger log = Logger.getLogger(NamedXmlBeanDefinitionParser.class);
public static final String BEAN_FACTORY_ELEMENT = "BeanFactory=\\(([^)]+)\\)";
public static final String PARENT_BEAN_FACTORY_ELEMENT = "ParentBeanFactory=\\(([^)]+)\\)";
public static final String INSTANTIATION_ELEMENT = "Instantiate=\\(([^)]+)\\)";
private ConfigurableBeanFactory beanFactory;
private String beanFactoryName;
private boolean instantiate;
public NamedXmlBeanDefinitionParser(ConfigurableBeanFactory beanFactory)
{
this.beanFactory = beanFactory;
}
protected void preProcessXml(Element root) throws BeanDefinitionStoreException
{
NodeList nl = root.getChildNodes();
for (int i = 0; i < nl.getLength(); i++)
{
Node node = nl.item(i);
if (node instanceof Element)
{
Element ele = (Element) node;
if (BeanDefinitionParserDelegate.DESCRIPTION_ELEMENT.equals(node.getNodeName()))
{
String nodeValue = ele.getFirstChild().getNodeValue();
if (log.isTraceEnabled())
log.trace("Bean names [description tag]: " + nodeValue);
Matcher bfm = parse(nodeValue, BEAN_FACTORY_ELEMENT);
if (bfm.find())
{
beanFactoryName = bfm.group(1);
}
Matcher pbfm = parse(nodeValue, PARENT_BEAN_FACTORY_ELEMENT);
if (pbfm.find())
{
String parentBeanFactoryName = pbfm.group(1);
try
{
beanFactory.setParentBeanFactory((BeanFactory) Util.lookup(parentBeanFactoryName, BeanFactory.class));
}
catch (Exception e)
{
throw new BeanDefinitionStoreException("Failure during parent bean factory JNDI lookup: " + parentBeanFactoryName, e);
}
}
Matcher inst = parse(nodeValue, INSTANTIATION_ELEMENT);
if (inst.find())
{
instantiate = Boolean.parseBoolean(inst.group(1));
}
}
}
}
}
public String getName()
{
return beanFactoryName;
}
public boolean doInstantiate()
{
return instantiate;
}
private static Matcher parse(String value, String regexp)
{
Pattern pattern = Pattern.compile(regexp);
return pattern.matcher(value);
}
}