/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.neethi.builders.xml;
import java.util.HashMap;
import java.util.Map;
import javax.xml.namespace.QName;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.apache.neethi.Assertion;
import org.apache.neethi.AssertionBuilderFactory;
import org.apache.neethi.Constants;
import org.apache.neethi.Policy;
import org.apache.neethi.builders.AssertionBuilder;
import org.apache.neethi.builders.PolicyContainingPrimitiveAssertion;
import org.apache.neethi.builders.PrimitiveAssertion;
public class XMLPrimitiveAssertionBuilder implements AssertionBuilder<Element> {
public Assertion build(Element element, AssertionBuilderFactory factory)
throws IllegalArgumentException {
Node nd = element.getFirstChild();
int count = 0;
int policyCount = 0;
Element policyEl = null;
while (nd != null) {
if (nd instanceof Element) {
count++;
Element el = (Element)nd;
if (Constants.isPolicyElement(el.getNamespaceURI(), el.getLocalName())) {
policyEl = el;
policyCount++;
}
}
nd = nd.getNextSibling();
}
Map<QName, String> atts = new HashMap<QName, String>();
NamedNodeMap attrs = element.getAttributes();
if (attrs != null) {
for (int x = 0; x < attrs.getLength(); x++) {
Attr attr = (Attr)attrs.item(x);
atts.put(new QName(attr.getNamespaceURI(), attr.getLocalName()), attr.getValue());
}
}
if (count == 0) {
return newPrimitiveAssertion(element, atts.isEmpty() ? null : atts);
} else if (policyCount == 1 && count == 1) {
Policy policy = factory.getPolicyEngine().getPolicy(policyEl);
return newPolicyContainingAssertion(element, atts.isEmpty() ? null : atts, policy);
}
return new XmlPrimitiveAssertion(element);
}
protected QName getQName(Element element) {
if (element.getPrefix() == null) {
return new QName(element.getNamespaceURI(), element.getLocalName());
}
return new QName(element.getNamespaceURI(), element.getLocalName(), element.getPrefix());
}
public Assertion newPrimitiveAssertion(Element element, Map<QName, String> atts) {
return new PrimitiveAssertion(getQName(element),
isOptional(element), isIgnorable(element),
atts,
element.getTextContent());
}
public Assertion newPolicyContainingAssertion(Element element, Map<QName, String> atts, Policy policy) {
return new PolicyContainingPrimitiveAssertion(getQName(element),
isOptional(element), isIgnorable(element),
policy);
}
public static boolean isOptional(Element el) {
Attr optional = el.getAttributeNodeNS(Constants.URI_POLICY_13_NS, Constants.ATTR_OPTIONAL);
if (optional == null) {
optional = el.getAttributeNodeNS(Constants.URI_POLICY_15_NS, Constants.ATTR_OPTIONAL);
}
if (optional == null) {
optional = el.getAttributeNodeNS(Constants.URI_POLICY_15_DEPRECATED_NS, Constants.ATTR_OPTIONAL);
}
return optional == null ? false : Boolean.parseBoolean(optional.getValue());
}
public static boolean isIgnorable(Element el) {
Attr ignorable = el.getAttributeNodeNS(Constants.URI_POLICY_15_NS, Constants.ATTR_IGNORABLE);
if (ignorable == null) {
ignorable = el.getAttributeNodeNS(Constants.URI_POLICY_15_DEPRECATED_NS,
Constants.ATTR_IGNORABLE);
}
return ignorable == null ? false : Boolean.parseBoolean(ignorable.getValue());
}
public QName[] getKnownElements() {
return new QName[] {new QName("UnknownElement")};
}
}