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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.interfacedef.wsdl.xml;
import java.io.PrintWriter;
import javax.wsdl.Definition;
import javax.wsdl.WSDLException;
import javax.wsdl.extensions.ExtensibilityElement;
import javax.wsdl.extensions.ExtensionDeserializer;
import javax.wsdl.extensions.ExtensionRegistry;
import javax.wsdl.extensions.ExtensionSerializer;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.interfacedef.wsdl.BPELPartnerLinkTypeExt;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* A WSDL extension processor for extension elements introduced by BPEL - in particular
* the <partnerLinkType.../> elements
*
* Handles both BPEL 1.1 and BPEL 2.0 version of the <partnerLinkType/>
* @version $Rev$ $Date$
*/
public class BPELExtensionHandler implements ExtensionSerializer, ExtensionDeserializer {
private final String localName = "partnerLinkType";
private final String roleName = "role";
/**
* Marshals the BPEL partner link type extension element to XML
* See (@link javax.wsdl.extensions.ExtensionSerializer)
*/
@SuppressWarnings("unchecked")
public void marshall(Class parentType, QName elementType, ExtensibilityElement theElement,
PrintWriter writer, Definition def, ExtensionRegistry extReg)
throws WSDLException {
// The format of the Partner Link Type in XML is as follows:
// <foo:partnerLinkType name="bar">
// <foo:role name="somename" portType="xyz:portTypeName"/>
// <foo:role name="othername" portType="xyz:portTypeName2"/>
// <foo:partnerLinkType>
BPELPartnerLinkTypeExt thePLinkType = (BPELPartnerLinkTypeExt) theElement;
QName theType = thePLinkType.getElementType();
writer.println("<" + theType.toString() +
" name=\"" + thePLinkType.getName() + "\">");
for( int i = 0; i < 2; i++ ) {
if( thePLinkType.getRoleName( i ) != null ) {
writer.println( "<" + theType.getPrefix() + ":role"
+ " name=\"" + thePLinkType.getRoleName(i) + "\" portType=\""
+ thePLinkType.getRolePortType(i) + "\">");
} // end if
} // end for
writer.println("</" + theType.toString() + ">");
} // end marshall
/**
* Unmarshals the BPEL partner link type element from XML
* See (@link javax.wsdl.extensions.ExtensionDeserializer)
* The format of the Partner Link Type in XML is as follows:
* <foo:partnerLinkType name="bar">
* <foo:role name="somename" portType="xyz:portTypeName"/>
* <foo:role name="othername" portType="xyz:portTypeName2"/>
* <foo:partnerLinkType>
*
* One role is mandatory, the second is optional.
*/
@SuppressWarnings("unchecked")
public ExtensibilityElement unmarshall(Class theClass, QName elementType,
Element theElement, Definition def, ExtensionRegistry extReg)
throws WSDLException {
// Check that this elementType really is a partnerLinkType element
if( !elementType.getLocalPart().equals(localName) ) return null;
BPELPartnerLinkTypeExt theExtension = new BPELPartnerLinkTypeExt();
theExtension.setElementType(elementType);
theExtension.setName( theElement.getAttribute("name") );
// Fetch the child "role" elements
NodeList theRoles = theElement.getElementsByTagNameNS("*", roleName);
for ( int i=0; i < theRoles.getLength(); i++ ) {
if( i > 1 ) break;
Element roleNode = (Element)theRoles.item(i);
String roleName = roleNode.getAttribute("name");
String portType = roleNode.getAttribute("portType");
if (portType == null || portType.length() == 0) {
// Fetch the child "portType" element
NodeList portTypesNodes = roleNode.getElementsByTagNameNS("*", "portType");
for (int p = 0; p < portTypesNodes.getLength(); p++) {
Element portTypeNode = (Element)portTypesNodes.item(p);
portType = portTypeNode.getAttribute("name");
break;
}
}
// The PortType attribute is a QName in prefix:localName format - convert to a QName
QName rolePortType = getQNameValue( def, portType );
theExtension.setRole( i, roleName, rolePortType );
} // end for
return theExtension;
} // end unmarshall
/**
* Returns a QName from a string.
* @param definition - a WSDL Definition
* @param value - the String from which to form the QName in the form "pref:localName"
* @return
*/
protected QName getQNameValue(Definition definition, String value) {
if (value != null && definition != null) {
int index = value.indexOf(':');
String prefix = index == -1 ? "" : value.substring(0, index);
String localName = index == -1 ? value : value.substring(index + 1);
String ns = definition.getNamespace(prefix);
if (ns == null) {
ns = "";
}
return new QName(ns, localName, prefix);
} else {
return null;
}
} // end getQNameValue
} // end BPELExtensionHandler
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