/*
* JBoss, Home of Professional Open Source
* Copyright 2010, Red Hat, Inc., and individual contributors
* 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.solder.config.xml.parser.namespace;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.jboss.solder.config.xml.model.AnnotationXmlItem;
import org.jboss.solder.config.xml.model.ClassXmlItem;
import org.jboss.solder.config.xml.model.MethodXmlItem;
import org.jboss.solder.config.xml.model.ParameterXmlItem;
import org.jboss.solder.config.xml.model.PropertyXmlItem;
import org.jboss.solder.config.xml.model.XmlItem;
import org.jboss.solder.config.xml.model.XmlItemType;
import org.jboss.solder.config.xml.parser.SaxNode;
import org.jboss.solder.config.xml.util.TypeOccuranceInformation;
import org.jboss.solder.properties.Property;
import org.jboss.solder.properties.query.NamedPropertyCriteria;
import org.jboss.solder.properties.query.PropertyQueries;
import org.jboss.solder.properties.query.PropertyQuery;
import org.jboss.solder.reflection.Reflections;
public class PackageNamespaceElementResolver implements NamespaceElementResolver {
private final String pack;
private final Map<String, Class<?>> cache = new HashMap<String, Class<?>>();
private final Set<String> notFound = new HashSet<String>();
public PackageNamespaceElementResolver(String pack) {
this.pack = pack + ".";
}
public XmlItem getItemForNamespace(SaxNode node, XmlItem parent) {
String name = node.getName();
if (notFound.contains(name)) {
return null;
}
try {
Class<?> c;
if (cache.containsKey(name)) {
c = cache.get(name);
} else {
c = getClass().getClassLoader().loadClass(pack + name);
cache.put(name, c);
}
if (c.isAnnotation()) {
return new AnnotationXmlItem(parent, c, node.getInnerText(), node.getAttributes(), node.getDocument(), node.getLineNo());
} else {
// if it is a method or constructor parameter
if (parent != null && parent.getType() == XmlItemType.PARAMETERS) {
return new ParameterXmlItem(parent, c, node.getDocument(), node.getLineNo());
} else {
return new ClassXmlItem(parent, c, node.getAttributes(), node.getDocument(), node.getLineNo());
}
}
} catch (ClassNotFoundException e) {
} catch (NoClassDefFoundError e) // this can get thrown when there is a
// case insensitive file system
{
} catch (LinkageError e) {
// this may be thrown by jboss modules instead of NoClassDefFoundError
}
if (parent != null) {
// if the item can be a method of a FIELD
if (TypeOccuranceInformation.isTypeInSet(parent.getAllowedItem(), XmlItemType.METHOD) || TypeOccuranceInformation.isTypeInSet(parent.getAllowedItem(), XmlItemType.FIELD)) {
return resolveMethodOrField(name, parent, node);
} else {
notFound.add(name);
}
} else {
notFound.add(name);
}
return null;
}
public static XmlItem resolveMethodOrField(String name, XmlItem parent, SaxNode node) {
Class<?> p = parent.getJavaClass();
boolean methodFound = Reflections.methodExists(p, name);
PropertyQuery<Object> query = PropertyQueries.createQuery(parent.getJavaClass());
query.addCriteria(new NamedPropertyCriteria(name));
Property<Object> property = query.getFirstWritableResult();
if (methodFound && property != null) {
// if there is both a method and a field of the same name
// we look for the <parameters> element
for (SaxNode child : node.getChildren()) {
if (child.getName().equals(XmlItemType.PARAMETERS.getElementName())) {
property = null;
}
}
if (property != null) {
methodFound = false;
}
}
if (methodFound) {
return new MethodXmlItem(parent, name, node.getDocument(), node.getLineNo());
} else if (property != null) {
// ensure the property is accessible
property.setAccessible();
return new PropertyXmlItem(parent, property, node.getInnerText(), null, node.getDocument(), node.getLineNo());
}
return null;
}
}