1 files changed, 105 insertions, 0 deletions
diff --git a/branches/sca-java-1.1/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java b/branches/sca-java-1.1/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java
new file mode 100644
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+++ b/branches/sca-java-1.1/modules/implementation-widget/src/main/java/org/apache/tuscany/sca/implementation/widget/WidgetImplementationIntrospector.java
@@ -0,0 +1,105 @@
+/*
+ * 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.implementation.widget;
+
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+import org.apache.tuscany.sca.assembly.Reference;
+
+public class WidgetImplementationIntrospector {
+    private static final String WEB_REFERENCE_ANNOTATION = "//@Reference";
+    
+    private AssemblyFactory assemblyFactory;
+    private WidgetImplementation widgetImplementation;
+    
+    public WidgetImplementationIntrospector(AssemblyFactory assemblyFactory, WidgetImplementation widgetImplementation) {
+        this.widgetImplementation = widgetImplementation;
+        this.assemblyFactory = assemblyFactory;
+    }
+    
+    
+    /**
+     * Introspect the References of a given htmlWidget
+     * @return
+     */
+    public List<Reference> getReferences() {
+        List<Reference> references = new ArrayList<Reference>();
+        URL htmlWidget = widgetImplementation.getLocationURL();
+        
+        try {
+            Scanner scanner = new Scanner(htmlWidget.openStream());
+            while(scanner.hasNextLine()) {
+                String line = scanner.nextLine();
+                if(line.contains(WEB_REFERENCE_ANNOTATION)) {
+                    //process the next line, as it has the reference info
+                    if(scanner.hasNextLine()) {
+                        Reference reference = processReferenceScript(scanner.nextLine());
+                        if(reference != null){
+                            references.add(reference);
+                        }
+                        
+                    }
+                }
+            }
+            
+        } catch(Exception e) {
+            
+        }
+        
+        return references;
+        
+    }
+    
+    /**
+     * Process Reference declaration in JavaScript code
+     * Supported ways :
+     *    //@Reference
+     *    var catalog = new Reference("catalog");
+     *    
+     *    //@Reference
+     *    catalog = new Reference("catalog");
+     *    
+     * @param scriptContent
+     * @return
+     */
+    private Reference processReferenceScript(String scriptContent) {
+        Reference reference = null;
+        String referenceName = null;
+        
+        String tokens[] = scriptContent.split("=");
+        tokens = tokens[0].split(" ");
+        referenceName = tokens[tokens.length -1];
+        
+        if(referenceName != null) {
+            reference = assemblyFactory.createReference();
+            reference.setName(referenceName);            
+        }
+        
+        return reference;
+    }
+    
+    
+
+
+}