1 files changed, 84 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java
new file mode 100644
index 0000000000..976eb2c0dd
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-script-runtime/src/main/java/org/apache/tuscany/sca/implementation/script/provider/ScriptInvoker.java
@@ -0,0 +1,84 @@
+/*
+ * 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.script.provider;
+
+import javax.script.Invocable;
+import javax.script.ScriptEngine;
+import javax.script.ScriptException;
+
+import org.apache.axiom.om.OMElement;
+import org.apache.bsf.xml.XMLHelper;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+
+/**
+ * Perform the actual script invocation
+ *
+ * @version $Rev$ $Date$
+ */
+public class ScriptInvoker implements Invoker {
+
+    private ScriptEngine scriptEngine;
+    private XMLHelper xmlHelper;
+    private Operation operation;
+
+    public ScriptInvoker(ScriptEngine scriptEngine, XMLHelper xmlHelper, Operation operation) {
+        this.scriptEngine = scriptEngine;
+        this.xmlHelper = xmlHelper;
+        this.operation = operation;
+    }
+
+    private Object doInvoke(Object[] objects, Operation op) throws ScriptException {
+        if (xmlHelper != null) {
+            objects[0] = xmlHelper.toScriptXML((OMElement)objects[0]);
+        }
+
+        Operation oper = operation;  // static setting
+        if (oper.getName() == null) {  // if no static setting
+            oper = op;  // use dynamic setting
+        }
+        Object response;
+        try {
+            response = ((Invocable)scriptEngine).invokeFunction(oper.getName(), objects);
+        } catch (ScriptException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new ScriptException(e);
+        }
+
+        if (xmlHelper != null) {
+            response = xmlHelper.toOMElement(response);
+        }
+
+        return response;
+    }
+
+    public Message invoke(Message msg) {
+        try {
+            Object resp = doInvoke((Object[])msg.getBody(), msg.getOperation());
+            msg.setBody(resp);
+        } catch (ScriptException e) {
+            msg.setFaultBody(e.getCause());
+        }
+        return msg;
+    }
+
+}