/* | |
* 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.w3c.dom.Element; | |
import org.w3c.dom.NodeList; | |
/** | |
* A WSDL extension processor for extension elements introduced by BPEL - in particular | |
* the <partnerLinkType.../> elements | |
* | |
* @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.getPrefix() + ":" + localName + | |
" name=\"" + thePLinkType.getName() + "\">"); | |
for( int i = 0; i < 2; i++ ) { | |
if( thePLinkType.getRoleName( i ) != null ) { | |
writer.println( "<" + theType.getPrefix() + ":" + roleName | |
+ " name=\"" + thePLinkType.getRoleName(i) + "\" portType=\"" | |
+ thePLinkType.getRolePortType(i).getPrefix() + ":" | |
+ thePLinkType.getRolePortType(i).getLocalPart() + "\"/>"); | |
} // end if | |
} // end for | |
writer.println("</" + theType.getPrefix() + ":" + localName + ">"); | |
} // 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(getQNameValue(def, theElement.getTagName())); | |
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 |