1 files changed, 110 insertions, 0 deletions
diff --git a/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScriptInstance.java b/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScriptInstance.java
new file mode 100644
index 0000000000..f368a453d3
--- /dev/null
+++ b/sandbox/old/contrib/implementation-javascript/container/src/main/java/org/apache/tuscany/container/javascript/rhino/RhinoScriptInstance.java
@@ -0,0 +1,110 @@
+/*
+ * 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.container.javascript.rhino;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import org.mozilla.javascript.Context;
+import org.mozilla.javascript.Function;
+import org.mozilla.javascript.Scriptable;
+import org.mozilla.javascript.UniqueTag;
+
+/**
+ * An invokeable instance of a JavaScript script.
+ */
+public class RhinoScriptInstance {
+
+    private Scriptable scriptScope;
+
+    private Scriptable instanceScope;
+
+    private Map<String, Class> responseClasses;
+
+    public RhinoScriptInstance(Scriptable scriptScope, Scriptable instanceScope, Map<String, Object> context, Map<String, Class> responseClasses) {
+        this.scriptScope = scriptScope;
+        this.instanceScope = instanceScope;
+        this.responseClasses = responseClasses;
+        if (this.responseClasses == null) {
+            this.responseClasses = new HashMap<String, Class>();
+        }
+        addContexts(instanceScope, context);
+    }
+    
+    public Object invokeFunction(String functionName, Object[] args) {
+        return invokeFunction(functionName, args, null);
+    }
+
+    public Object invokeFunction(String functionName, Object[] args, Class respClass) {
+        RhinoFunctionInvoker invoker = createRhinoFunctionInvoker(functionName, respClass);
+        return invoker.invoke(args);
+    }
+
+    public RhinoFunctionInvoker createRhinoFunctionInvoker(String functionName) {
+        return createRhinoFunctionInvoker(functionName, null);
+    }
+
+    
+    public RhinoFunctionInvoker createRhinoFunctionInvoker(String functionName, Class responseClass) {
+        Function function = getFunction(functionName);
+        //Class responseClass = responseClasses.get(functionName);
+        RhinoFunctionInvoker invoker = new RhinoFunctionInvoker(instanceScope, function, responseClass);
+        return invoker;
+    }
+
+    /**
+     * Add the context to the scope. This will make the objects available to a script by using the name it was added with.
+     */
+    protected void addContexts(Scriptable scope, Map contexts) {
+        if (contexts != null) {
+            Context.enter();
+            try {
+                for (Iterator i = contexts.keySet().iterator(); i.hasNext();) {
+                    String name = (String) i.next();
+                    Object value = contexts.get(name);
+                    if (value != null) {
+                        scope.put(name, scope, Context.toObject(value, scope));
+                    }
+                }
+            } finally {
+                Context.exit();
+            }
+        }
+    }
+
+    /**
+     * Get the Rhino Function object for the named script function
+     */
+    protected Function getFunction(String functionName) {
+
+        Object handleObj = scriptScope.get(functionName, instanceScope);
+        if (UniqueTag.NOT_FOUND.equals(handleObj)) {
+            // Bit of a hack so E4X scripts don't need to define a function for every operation
+            handleObj = scriptScope.get("process", instanceScope);
+        }
+        if (!(handleObj instanceof Function)) {
+            throw new RuntimeException("script function '" + functionName + "' is undefined or not a function");
+        }
+
+        return (Function) handleObj;
+    }
+
+}
+