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/*
* 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.jboss.ws.extensions.policy;
// $Id: PolicyFactory.java 3959 2007-07-20 14:44:19Z heiko.braun@jboss.com $
import java.io.IOException;
import java.util.Iterator;
import javax.xml.namespace.QName;
import org.jboss.ws.WSException;
import org.jboss.wsf.common.DOMUtils;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
/**
* A factory for Policy construction
*
* @author Thomas.Diesler@jboss.org
* @since 13-Nov-2005
*/
public class PolicyFactory
{
// PolicyFactory Singelton
private static PolicyFactory factory = new PolicyFactory();
// Hide constructor
private PolicyFactory()
{
}
public static PolicyFactory newInstance()
{
return factory;
}
public Policy createPolicy(String strPolicy)
{
try
{
return createPolicy(DOMUtils.parse(strPolicy));
}
catch (IOException ex)
{
throw new IllegalArgumentException("Cannot parse: " + strPolicy, ex);
}
}
public Policy createPolicy(Element elPolicy)
{
// Work with a cloned copy, so parsing does not effect in input node
elPolicy = (Element)elPolicy.cloneNode(true);
Policy policy = new Policy();
policy.setTargetNamespace(DOMUtils.getAttributeValue(elPolicy, "TargetNamespace"));
policy.setBaseURI(DOMUtils.getAttributeValue(elPolicy, "xml:base"));
policy.setID(DOMUtils.getAttributeValue(elPolicy, new QName(Policy.URI_SECURITY_UTILITY, "Id")));
// Register namespaces
NamedNodeMap attribs = elPolicy.getAttributes();
for (int i = 0; i < attribs.getLength(); i++)
{
Attr attr = (Attr)attribs.item(i);
String attrName = attr.getName();
String attrValue = attr.getValue();
if (attrName.startsWith("xmlns:"))
{
String prefix = attrName.substring(6);
policy.getNamespaceRegistry().registerURI(attrValue, prefix);
}
}
// Parse wsp:ExactlyOne
QName oneQName = new QName(Policy.URI_POLICY, "ExactlyOne");
Element elExactlyOne = DOMUtils.getFirstChildElement(elPolicy, oneQName);
if (elExactlyOne == null)
throw new WSException("Cannot find child element: " + oneQName);
// Parse wsp:All
QName allQName = new QName(Policy.URI_POLICY, "All");
Element elAll = DOMUtils.getFirstChildElement(elExactlyOne, allQName);
if (elAll == null)
throw new WSException("Cannot find child element: " + allQName);
Iterator it = DOMUtils.getChildElements(elExactlyOne, allQName);
while (it.hasNext())
{
elAll = (Element)it.next();
PolicyAlternative all = PolicyAlternative.parse(elAll);
policy.addPolicyAlternative(all);
}
return policy;
}
}
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