Add code to read <requires> elements from WSDL and enable the test that ensure that mayProvides intents are matched between references and services. This has implications for existing tests in that we now have to ensure that any mayProvides intent that is considered to be the default (a concept that the spec doesn't consider) is present in the intent list for the policy subject in question.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1186027 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 204 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/RequiresExt.java b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/RequiresExt.java
new file mode 100644
index 0000000000..e72aa98420
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/RequiresExt.java
@@ -0,0 +1,56 @@
+/*

+ * 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;

+

+import java.util.ArrayList;

+import java.util.List;

+

+import javax.wsdl.extensions.ExtensibilityElement;

+import javax.xml.namespace.QName;

+

+/**

+ * A class to serve as the extensibility element for policy requires elements

+ */

+public class RequiresExt implements ExtensibilityElement {

+

+	private QName elementType = null;

+	private List<QName> intents = new ArrayList<QName>();

+

+	// -- methods required by the Extensibility Element interface

+	public QName getElementType() {

+		return elementType;

+	}

+

+	public Boolean getRequired() {

+		return true;

+	}

+

+	public void setElementType(QName theName ) {

+		elementType = theName;

+	}

+

+	public void setRequired(Boolean required) {

+		// intentionally left blank

+	}

+

+	// -- other methods

+	public List<QName> getIntents(){

+	    return intents;

+	}

+}

diff --git a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java
index dd19407abe..642aa81179 100644
--- a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java
+++ b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/impl/WSDLInterfaceIntrospectorImpl.java
@@ -25,11 +25,14 @@ 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;
@@ -38,6 +41,7 @@ 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.
@@ -108,6 +112,8 @@ public class WSDLInterfaceIntrospectorImpl {
     } // end method processCallbackAttribute
     
     private void processIntents(WSDLInterface wsdlInterface, PortType portType) {
+        
+        // process @requires attribute
         Object o;
         try {
             o =  portType.getExtensionAttribute(POLICY_REQUIRES);
@@ -128,7 +134,22 @@ public class WSDLInterfaceIntrospectorImpl {
 
                 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);
+                }
+            }
         }
     }
     
diff --git a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/PolicyExtensionHandler.java b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/PolicyExtensionHandler.java
new file mode 100644
index 0000000000..937be6a57f
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/PolicyExtensionHandler.java
@@ -0,0 +1,119 @@
+/*

+ * 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.RequiresExt;

+import org.w3c.dom.Element;

+

+/**

+ * A WSDL extension processor for extension policy elements of the form:

+ * 

+ * <sca:requires intents="sca:SOAP.v1_1"/>

+ * 

+ */

+public class PolicyExtensionHandler implements ExtensionSerializer, ExtensionDeserializer {

+

+	/**

+	 * Marshals the requires 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 {

+

+		RequiresExt requires = (RequiresExt) theElement;

+		QName theType = requires.getElementType();

+

+		writer.println("<" + theType.toString() +

+				       " intents=\"");

+		

+		for(QName intentName : requires.getIntents()){

+		    writer.println(intentName + " ");

+		}

+		        

+		writer.println("\">");

+	} 

+

+	/**

+	 * Unmarshals the requires extension element from XML

+	 */

+	@SuppressWarnings("unchecked")

+	public ExtensibilityElement unmarshall(Class theClass, 

+	                                       QName elementType,

+			                               Element theElement, 

+			                               Definition def, 

+			                               ExtensionRegistry extReg)

+			throws WSDLException {

+

+		// Check that this elementType really is a requires element

+		if( !elementType.getLocalPart().equals("requires") ){

+		    return null;

+		}

+		

+		RequiresExt requires = new RequiresExt();

+		requires.setElementType(elementType);

+		

+		String intents = theElement.getAttribute("intents");

+        String[] intentArray = intents.split(" +");

+        

+        for (int i=0; i < intentArray.length; i++){

+            String intentNameString = intentArray[i];

+            QName intentQName = getQNameValue( def, intentNameString);

+            requires.getIntents().add(intentQName);

+        }

+        

+		return requires;

+	} 

+

+    /**

+     * 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;

+        }

+    }

+}

diff --git a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/WSDLModelResolver.java b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/WSDLModelResolver.java
index fdb562b1b7..354cca8392 100644
--- a/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/WSDLModelResolver.java
+++ b/sca-java-2.x/trunk/modules/interface-wsdl/src/main/java/org/apache/tuscany/sca/interfacedef/wsdl/xml/WSDLModelResolver.java
@@ -103,6 +103,7 @@ public class WSDLModelResolver implements ModelResolver {
     
     // ---- SCA Policy WSDL Attachments    
     public static final QName Q_POLICY_ATTRIBUTE_EXTENSION = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200912", "requires");
+    public static final QName Q_POLICY_ELEMENT_EXTENSION = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200912", "requires");
     public static final QName Q_POLICY_END_CONVERSATION_ATTRIBUTE_EXTENSION = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200912", "endsConversation");
     // ---- SCA Callback WSDL Extension
     public static final QName Q_CALLBACK_ATTRIBUTE_EXTENSION = new QName("http://docs.oasis-open.org/ns/opencsa/sca/200912", "callback" );
@@ -134,6 +135,7 @@ public class WSDLModelResolver implements ModelResolver {
         this.xsdFactory = modelFactories.getFactory(XSDFactory.class);
 
         wsdlExtensionRegistry = this.wsdl4jFactory.newPopulatedExtensionRegistry();
+        
         // REVIEW: [rfeng] Disable the schema extension for WSDL4J to avoid aggressive loading 
         ExtensionDeserializer deserializer = new UnknownExtensionDeserializer();
         ExtensionSerializer serializer = new UnknownExtensionSerializer();
@@ -141,11 +143,17 @@ public class WSDLModelResolver implements ModelResolver {
             wsdlExtensionRegistry.registerSerializer(Types.class, schema, serializer);
             wsdlExtensionRegistry.registerDeserializer(Types.class, schema, deserializer);
         }
+        
         // ---- Policy WSDL Extensions
         try {
             wsdlExtensionRegistry.registerExtensionAttributeType(PortType.class, Q_POLICY_ATTRIBUTE_EXTENSION, AttributeExtensible.LIST_OF_QNAMES_TYPE);
             wsdlExtensionRegistry.registerExtensionAttributeType(Operation.class, Q_POLICY_END_CONVERSATION_ATTRIBUTE_EXTENSION, AttributeExtensible.STRING_TYPE);
             wsdlExtensionRegistry.registerExtensionAttributeType(PortType.class, Q_CALLBACK_ATTRIBUTE_EXTENSION, AttributeExtensible.QNAME_TYPE);
+            
+            serializer = new PolicyExtensionHandler();
+            deserializer = new PolicyExtensionHandler();
+            wsdlExtensionRegistry.registerSerializer(PortType.class, Q_POLICY_ELEMENT_EXTENSION, serializer);
+            wsdlExtensionRegistry.registerDeserializer(PortType.class, Q_POLICY_ELEMENT_EXTENSION, deserializer);
         } catch (NoSuchMethodError e) {
             // That method does not exist on older WSDL4J levels
         }