Creating a branch for the equinox work.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@694816 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 87 insertions, 0 deletions

diff --git a/branches/sca-equinox/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java b/branches/sca-equinox/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java
new file mode 100644
index 0000000000..4cd227717c
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+++ b/branches/sca-equinox/modules/implementation-das/src/main/java/org/apache/tuscany/sca/implementation/das/provider/DASInvoker.java
@@ -0,0 +1,87 @@
+/*
+ * 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.das.provider;
+
+import java.lang.reflect.InvocationTargetException;
+
+import org.apache.tuscany.sca.data.engine.DataAccessEngine;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+
+
+/**
+ * Implements a target invoker for DAS component implementations.
+ * 
+ * The target invoker is responsible for dispatching invocations to the particular
+ * component implementation logic. The current component implementation will
+ * dispatch calls to the DAS APIs to retrieve the requested data from the back-end store
+ * 
+ * @version $Rev$ $Date$
+ */
+public class DASInvoker implements Invoker {
+    private final Operation operation;
+    private final DataAccessEngine dataAccessEngine;
+    
+    public DASInvoker(Operation operation, DataAccessEngine dataAccessEngine) {
+        this.operation = operation;
+        this.dataAccessEngine = dataAccessEngine;
+    }
+    
+    public Message invoke(Message msg) {
+        try {
+            Object[] args = msg.getBody();
+            Object resp = doTheWork(args);
+            msg.setBody(resp);
+        } catch (InvocationTargetException e) {
+            msg.setFaultBody(e.getCause());
+        }
+        return msg;
+    }
+
+    public Object doTheWork(Object[] args) throws InvocationTargetException {
+        //check annotation
+//        try {
+//            Method methodDeclaration = this.getClass().getMethod(operation.getName(), null);
+//            methodDeclaration.getAnnotation(org.apache.tuscany.sca.implementation.das.annotations.Command.class);
+//        } catch (Exception e) {
+//            //ignore
+//        }
+        
+        //check if static way
+        if (operation.getName().equals("executeCommand")) {
+            String commandName, xPath;
+            
+            //simple execute command by name
+            if( args.length == 1){
+                commandName = (String) args[0];
+                return this.dataAccessEngine.executeCommand(commandName);
+            } else {
+                commandName = (String) args[0];
+                xPath = (String) args[1];
+                
+                return this.dataAccessEngine.executeCommand(commandName, xPath);
+            }
+        } else { // dynamic mapping to command
+            
+            return this.dataAccessEngine.executeCommand(operation.getName());
+        }
+    }
+}