/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.deployment.xml;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.TreeSet;
import javax.xml.namespace.NamespaceContext;
import javax.xml.namespace.QName;
import org.jboss.beans.metadata.plugins.AbstractAnnotationMetaData;
import org.jboss.beans.metadata.plugins.AbstractBeanMetaData;
import org.jboss.beans.metadata.plugins.AbstractConstructorMetaData;
import org.jboss.beans.metadata.plugins.AbstractDemandMetaData;
import org.jboss.beans.metadata.plugins.AbstractDependencyValueMetaData;
import org.jboss.beans.metadata.plugins.AbstractLifecycleMetaData;
import org.jboss.beans.metadata.spi.AnnotationMetaData;
import org.jboss.beans.metadata.api.model.AutowireType;
import org.jboss.beans.metadata.spi.ConstructorMetaData;
import org.jboss.beans.metadata.spi.DemandMetaData;
import org.jboss.beans.metadata.spi.ParameterMetaData;
import org.jboss.dependency.spi.ControllerMode;
import org.jboss.spring.annotations.SpringBean;
import org.jboss.spring.metadata.AbstractConstructorArg;
import org.jboss.xb.binding.sunday.unmarshalling.DefaultElementHandler;
import org.jboss.xb.binding.sunday.unmarshalling.ElementBinding;
import org.xml.sax.Attributes;
/**
*
* @author <a href="mailto:ales.justin@jboss.com">Ales Justin</a>
*/
public class SpringBeanHandler extends DefaultElementHandler
{
/**
* The beans handler
*/
public static final SpringBeanHandler HANDLER = new SpringBeanHandler();
/**
* The delimiter pattern
*/
public static final String DELIMITER_PATTERN = "[,; ]";
public Object startElement(Object parent, QName name, ElementBinding element)
{
AbstractBeanMetaData bean = new AbstractBeanMetaData();
Set<AnnotationMetaData> annotations = bean.getAnnotations();
if(annotations == null)
{
annotations = new HashSet<AnnotationMetaData>();
bean.setAnnotations(annotations);
}
// It's a bit of a hack, but it's a transparent one
AbstractAnnotationMetaData springAnnotation = new AbstractAnnotationMetaData();
springAnnotation.setAnnotation("@" + SpringBean.class.getName());
annotations.add(springAnnotation);
return bean;
}
public void attributes(Object o, QName elementName, ElementBinding element, Attributes attrs, NamespaceContext nsCtx)
{
AbstractBeanMetaData bean = (AbstractBeanMetaData) o;
for (int i = 0; i < attrs.getLength(); ++i)
{
String localName = attrs.getLocalName(i);
if ("id".equals(localName))
bean.setName(attrs.getValue(i));
else if ("name".equals(localName))
{
String name = attrs.getValue(i);
String[] names = name.split(DELIMITER_PATTERN);
bean.setAliases(new TreeSet<Object>(Arrays.asList(names)));
}
else if ("class".equals(localName))
bean.setBean(attrs.getValue(i));
else if ("init-method".equals(localName))
bean.setCreate(new AbstractLifecycleMetaData(attrs.getValue(i)));
else if ("lazy-init".equals(localName) && Boolean.parseBoolean(attrs.getValue(i)) == true)
bean.setMode(ControllerMode.ON_DEMAND);
else if ("parent".equals(localName))
bean.setParent(attrs.getValue(i));
else if ("abstract".equals(localName))
bean.setAbstract(Boolean.parseBoolean(attrs.getValue(i)));
else if ("autowire".equals(localName))
bean.setAutowireType(AutowireType.getInstance(attrs.getValue(i)));
else if ("autowire-candidate".equals(localName))
bean.setAutowireCandidate(Boolean.parseBoolean(attrs.getValue(i)));
else if ("destroy-method".equals(localName))
bean.setDestroy(new AbstractLifecycleMetaData(attrs.getValue(i)));
else if ("depends-on".equals(localName))
{
Set<DemandMetaData> demands = bean.getDemands();
if (demands == null)
{
demands = new HashSet<DemandMetaData>();
bean.setDemands(demands);
}
String[] values = attrs.getValue(i).split(DELIMITER_PATTERN);
for(String name : values)
demands.add(new AbstractDemandMetaData(name));
}
else if ("factory-method".equals(localName) || "factory-bean".equals(localName))
{
AbstractConstructorMetaData constructor = (AbstractConstructorMetaData) bean.getConstructor();
if (constructor == null)
{
constructor = new AbstractConstructorMetaData();
bean.setConstructor(constructor);
}
if ("factory-method".equals(localName))
constructor.setFactoryMethod(attrs.getValue(i));
if ("factory-bean".equals(localName))
constructor.setFactory(new AbstractDependencyValueMetaData(attrs.getValue(i)));
}
}
}
public Object endElement(Object object, QName qName, ElementBinding elementBinding)
{
AbstractBeanMetaData beanMetaData = (AbstractBeanMetaData) object;
ConstructorMetaData constructor = beanMetaData.getConstructor();
if (constructor != null)
{
List<ParameterMetaData> parameters = constructor.getParameters();
if (parameters != null && parameters.size() > 1)
{
orderParameters(parameters);
}
}
return beanMetaData;
}
protected void orderParameters(List<ParameterMetaData> parameters)
{
ParameterMetaData[] pmds = new ParameterMetaData[parameters.size()];
for(ParameterMetaData pmd : parameters)
{
int index = pmd.getIndex();
// lets first try to set those with explicit index
if (pmd instanceof AbstractConstructorArg && ((AbstractConstructorArg)pmd).isExplicitIndex())
{
if (pmds[index] != null)
throw new IllegalArgumentException("Argument with index: " + index + " already set!");
pmds[index] = pmd;
}
}
int index = 0;
for(ParameterMetaData pmd : parameters)
{
// then just put the others in the free places
if ((pmd instanceof AbstractConstructorArg && ((AbstractConstructorArg)pmd).isExplicitIndex() == false))
{
while(pmds[index] != null) index++;
pmds[index] = pmd;
}
index++;
}
// todo clone md
parameters.clear();
parameters.addAll(Arrays.asList(pmds));
}
}