/*
* JBoss, Home of Professional Open Source
* Copyright 2005, 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.jbpm.configuration;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.jbpm.JbpmException;
import org.jbpm.util.XmlUtil;
import org.w3c.dom.Element;
public class BeanInfo extends AbstractObjectInfo {
private static final long serialVersionUID = 1L;
String className = null;
ConstructorInfo constructorInfo = null;
PropertyInfo[] propertyInfos = null;
public BeanInfo() {
}
public BeanInfo(Element beanElement, ObjectFactoryParser objectFactoryParser) {
super(beanElement, objectFactoryParser);
// parse constructor or factory
Element constructorElement = XmlUtil.element(beanElement, "constructor");
if (constructorElement!=null) {
constructorInfo = new ConstructorInfo(constructorElement, objectFactoryParser);
constructorInfo.beanInfo = this;
}
if (beanElement.hasAttribute("class")) {
className = beanElement.getAttribute("class");
} else if ( (constructorInfo.factoryRefName==null)
&& (constructorInfo.factoryClassName==null )
) {
throw new JbpmException("bean element must have a class attribute: "+XmlUtil.toString(beanElement));
}
// parse fields
List propertyInfoList = new ArrayList();
Iterator iter = XmlUtil.elementIterator(beanElement, "field");
while (iter.hasNext()) {
Element fieldElement = (Element) iter.next();
propertyInfoList.add(new FieldInfo(fieldElement, objectFactoryParser));
}
// parse properties
iter = XmlUtil.elementIterator(beanElement, "property");
while (iter.hasNext()) {
Element propertyElement = (Element) iter.next();
propertyInfoList.add(new PropertyInfo(propertyElement, objectFactoryParser));
}
propertyInfos = (PropertyInfo[]) propertyInfoList.toArray(new PropertyInfo[propertyInfoList.size()]);
}
public Object createObject(ObjectFactoryImpl objectFactory) {
Object object = null;
if (constructorInfo==null) {
if (className==null) throw new JbpmException("bean '"+getName()+"' doesn't have a class or constructor specified");
try {
Class clazz = objectFactory.classForName(className);
object = clazz.newInstance();
} catch (Exception e) {
throw new JbpmException("couldn't instantiate bean '"+getName()+"' of type '"+className+"'", e);
}
} else {
object = constructorInfo.createObject(objectFactory);
}
if (className==null) className = object.getClass().getName();
if (propertyInfos!=null) {
for (int i=0; i<propertyInfos.length; i++) {
propertyInfos[i].injectProperty(object, objectFactory);
}
}
return object;
}
public String getClassName() {
return className;
}
public void setClassName(String className) {
this.className = className;
}
}