1 files changed, 156 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java
new file mode 100644
index 0000000000..642aa81179
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java
@@ -0,0 +1,156 @@
+/*
+ * 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.wsdl.extensions.ExtensibilityElement;
+import javax.wsdl.extensions.UnknownExtensibilityElement;
+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.Operation;
+import org.apache.tuscany.sca.interfacedef.wsdl.RequiresExt;
+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;
+import org.w3c.dom.Element;
+
+/**
+ * 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/200912", "requires");
+    
+    private static final QName CALLBACK_ATTRIBUTE 		= new QName("http://docs.oasis-open.org/ns/opencsa/sca/200912", "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);
+            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));
+    }
+
+    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) {
+        
+        // process @requires attribute
+        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();
+
+                // Add each intent to the list
+                Intent intent = policyFactory.createIntent();
+                intent.setName(intentName);
+
+                wsdlInterface.getRequiredIntents().add(intent);
+            }
+        }
+        
+        // process <sca:requires/> element
+        for(Object object : portType.getExtensibilityElements()){
+            ExtensibilityElement element = (ExtensibilityElement)object;
+            
+            if (element.getElementType().equals(POLICY_REQUIRES)){
+                RequiresExt requires = ((RequiresExt)element);
+                
+                for (QName intentName : requires.getIntents()){
+                    Intent intent = policyFactory.createIntent();
+                    intent.setName(intentName);
+
+                    wsdlInterface.getRequiredIntents().add(intent);
+                }
+            }
+        }
+    }
+    
+}