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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.impl;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.Vector;
import javax.wsdl.PortType;
import javax.xml.namespace.QName;
import org.apache.tuscany.sca.contribution.resolver.ModelResolver;
import org.apache.tuscany.sca.core.FactoryExtensionPoint;
import org.apache.tuscany.sca.interfacedef.ConversationSequence;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLDefinition;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLFactory;
import org.apache.tuscany.sca.interfacedef.wsdl.WSDLInterface;
import org.apache.tuscany.sca.interfacedef.wsdl.xml.WSDLInterfaceProcessor;
import org.apache.tuscany.sca.monitor.Monitor;
import org.apache.tuscany.sca.policy.Intent;
import org.apache.tuscany.sca.policy.PolicyFactory;
import org.apache.tuscany.sca.xsd.XSDFactory;
/**
* Introspector for creating WSDLInterface definitions from WSDL PortTypes.
*
* @version $Rev$ $Date$
*/
public class WSDLInterfaceIntrospectorImpl {
private static final QName POLICY_REQUIRES = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "requires");
private static final QName POLICY_CONVERSATIONAL = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "conversational");
public static final QName POLICY_END_CONVERSATION = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "endsConversation");
private static final QName CALLBACK_ATTRIBUTE = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200903", "callback" );
private WSDLFactory wsdlFactory;
private XSDFactory xsdFactory;
private PolicyFactory policyFactory;
public WSDLInterfaceIntrospectorImpl(FactoryExtensionPoint modelFactories, WSDLFactory wsdlFactory) {
this.xsdFactory = modelFactories.getFactory(XSDFactory.class);
this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
this.wsdlFactory = wsdlFactory;
}
// FIXME: Do we want to deal with document-literal wrapped style based on the JAX-WS Specification?
private List<Operation> introspectOperations(PortType portType, WSDLDefinition wsdlDefinition, ModelResolver resolver, Monitor monitor) throws InvalidWSDLException {
List<Operation> operations = new ArrayList<Operation>();
for (Object o : portType.getOperations()) {
javax.wsdl.Operation wsdlOp = (javax.wsdl.Operation)o;
Operation operation = getOperation(wsdlOp, wsdlDefinition, resolver, xsdFactory, monitor);
if(isEndConversation(wsdlOp)) {
operation.setConversationSequence(ConversationSequence.CONVERSATION_END);
}
operations.add(operation);
}
return operations;
}
public void introspectPortType(WSDLInterface wsdlInterface, PortType portType, WSDLDefinition wsdlDefinition, ModelResolver resolver, Monitor monitor) throws InvalidWSDLException {
processIntents(wsdlInterface, portType);
WSDLInterface callback = processCallbackAttribute( portType, resolver, monitor );
wsdlInterface.setPortType(portType);
wsdlInterface.setCallbackInterface(callback);
wsdlInterface.getOperations().addAll(introspectOperations(portType, wsdlDefinition, resolver, monitor));
wsdlInterface.setConversational(isConversational(portType));
}
public static Operation getOperation(javax.wsdl.Operation wsdlOp,
WSDLDefinition wsdlDefinition,
ModelResolver resolver,
XSDFactory xsdFactory,
Monitor monitor) throws InvalidWSDLException {
WSDLOperationIntrospectorImpl op = new WSDLOperationIntrospectorImpl(xsdFactory, wsdlOp, wsdlDefinition, null, resolver, monitor);
return op.getOperation();
}
/**
* Process an extension @callback attribute on a WSDL portType declaration
* - the callback attribute must contain the QName of another portType
* @param portType the portType
* @return
*/
private WSDLInterface processCallbackAttribute( PortType portType, ModelResolver resolver, Monitor monitor ) {
Object o = portType.getExtensionAttribute(CALLBACK_ATTRIBUTE);
if(o != null && o instanceof QName) {
WSDLInterface wsdlInterface = wsdlFactory.createWSDLInterface();
wsdlInterface.setUnresolved(true);
wsdlInterface.setName( (QName)o );
wsdlInterface = WSDLInterfaceProcessor.resolveWSDLInterface( wsdlInterface, resolver, monitor, wsdlFactory );
return wsdlInterface;
} else {
return null;
} // end if
} // end method processCallbackAttribute
private void processIntents(WSDLInterface wsdlInterface, PortType portType) {
Object o;
try {
o = portType.getExtensionAttribute(POLICY_REQUIRES);
} catch (NoSuchMethodError e) {
// That method does not exist on older WSDL4J levels
o = null;
}
if(o != null && o instanceof Vector) {
Vector<QName> policyAttributes = (Vector<QName>) o;
Enumeration<QName> policyItents = policyAttributes.elements();
while(policyItents.hasMoreElements()) {
QName intentName = policyItents.nextElement();
//ignores conversational, as it will have it's own
//attribute in the wsdl interface model
if(! intentName.equals(POLICY_CONVERSATIONAL)) {
// Add each intent to the list
Intent intent = policyFactory.createIntent();
intent.setName(intentName);
wsdlInterface.getRequiredIntents().add(intent);
}
}
}
}
private boolean isConversational(PortType portType) {
boolean conversational = false;
Object o;
try {
o = portType.getExtensionAttribute(POLICY_REQUIRES);
} catch (NoSuchMethodError e) {
// That method does not exist on older WSDL4J levels
o =null;
}
if(o != null && o instanceof Vector) {
Vector<QName> policyAttributes = (Vector<QName>) o;
if(policyAttributes.contains(POLICY_CONVERSATIONAL)) {
return true;
}
}
return conversational;
}
private boolean isEndConversation(javax.wsdl.Operation operation) {
boolean endConversation = false;
Object o;
try {
o = operation.getExtensionAttribute(POLICY_END_CONVERSATION);
} catch (NoSuchMethodError e) {
// That method does not exist on older WSDL4J levels
o = null;
}
if(o != null && o instanceof String) {
endConversation = Boolean.valueOf((String)o);
}
return endConversation;
}
}
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