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/*
* 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.tuscany.sca.binding.ws.axis2.policy.configuration;
import static javax.xml.stream.XMLStreamConstants.END_ELEMENT;
import static javax.xml.stream.XMLStreamConstants.START_ELEMENT;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMFactory;
import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
import org.apache.tuscany.sca.contribution.processor.ContributionResolveException;
import org.apache.tuscany.sca.contribution.processor.ContributionWriteException;
import org.apache.tuscany.sca.contribution.processor.ProcessorContext;
import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
/**
*
* @version $Rev$ $Date$
*/
public class Axis2ConfigParamPolicyProcessor implements StAXArtifactProcessor<Axis2ConfigParamPolicy> {
public static final QName AXIS2_CONFIG_PARAM_POLICY_QNAME = Axis2ConfigParamPolicy.NAME;
public static final String PARAMETER = "parameter";
public QName getArtifactType() {
return AXIS2_CONFIG_PARAM_POLICY_QNAME;
}
public Axis2ConfigParamPolicyProcessor(FactoryExtensionPoint modelFactories) {
}
public Axis2ConfigParamPolicy read(XMLStreamReader reader, ProcessorContext context) throws ContributionReadException, XMLStreamException {
Axis2ConfigParamPolicy policy = new Axis2ConfigParamPolicy();
int event = reader.getEventType();
QName name = null;
OMElement parameterElement = null;
String paramName = null;
while (reader.hasNext()) {
event = reader.getEventType();
switch (event) {
case START_ELEMENT : {
name = reader.getName();
if ( PARAMETER.equals(name.getLocalPart()) ) {
paramName = reader.getAttributeValue(null, "name");
parameterElement = loadElement(reader);
policy.getParamElements().put(paramName, parameterElement);
}
break;
}
}
if ( event == END_ELEMENT ) {
if ( AXIS2_CONFIG_PARAM_POLICY_QNAME.equals(reader.getName()) ) {
break;
}
}
//Read the next element
if (reader.hasNext()) {
reader.next();
}
}
return policy;
}
public void write(Axis2ConfigParamPolicy arg0, XMLStreamWriter arg1, ProcessorContext context) throws ContributionWriteException,
XMLStreamException {
}
public Class<Axis2ConfigParamPolicy> getModelType() {
return Axis2ConfigParamPolicy.class;
}
public void resolve(Axis2ConfigParamPolicy arg0, ModelResolver arg1, ProcessorContext context) throws ContributionResolveException {
}
private OMElement loadElement(XMLStreamReader reader) throws XMLStreamException {
OMFactory fac = OMAbstractFactory.getOMFactory();
OMElement head = fac.createOMElement(reader.getName());
OMElement current = head;
while (true) {
switch (reader.next()) {
case XMLStreamConstants.START_ELEMENT:
//since the axis2 code checks against a no namespace we need to generate accordingly
QName name = new QName(reader.getName().getLocalPart());
OMElement child = fac.createOMElement(name, current);
int count = reader.getNamespaceCount();
for (int i = 0; i < count; i++) {
String prefix = reader.getNamespacePrefix(i);
String ns = reader.getNamespaceURI(i);
child.declareNamespace(ns, prefix);
}
if(!"".equals(name.getNamespaceURI())) {
child.declareNamespace(name.getNamespaceURI(), name.getPrefix());
}
// add the attributes for this element
count = reader.getAttributeCount();
for (int i = 0; i < count; i++) {
String ns = reader.getAttributeNamespace(i);
String prefix = reader.getAttributePrefix(i);
String qname = reader.getAttributeLocalName(i);
String value = reader.getAttributeValue(i);
if (ns != null) {
child.addAttribute(qname, value, fac.createOMNamespace(ns, prefix));
child.declareNamespace(ns, prefix);
} else {
child.addAttribute(qname, value, null);
}
}
current = child;
break;
case XMLStreamConstants.CDATA:
fac.createOMText(current, reader.getText());
break;
case XMLStreamConstants.CHARACTERS:
fac.createOMText(current, reader.getText());
break;
case XMLStreamConstants.END_ELEMENT:
if ( current == head ) {
return head;
} else {
current = (OMElement)current.getParent();
}
}
}
}
}
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