From b771a05508db61cb1748d2fed0eb92daf173ff92 Mon Sep 17 00:00:00 2001
From: rsivaram <rsivaram@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 16 Oct 2008 11:51:49 +0000
Subject: Copy modules for event prototype

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@705212 13f79535-47bb-0310-9956-ffa450edef68
---
 .../http/provider/HTTPGetListenerServlet.java      | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 sandbox/event/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPGetListenerServlet.java

(limited to 'sandbox/event/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPGetListenerServlet.java')

diff --git a/sandbox/event/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPGetListenerServlet.java b/sandbox/event/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPGetListenerServlet.java
new file mode 100644
index 0000000000..e20d420d49
--- /dev/null
+++ b/sandbox/event/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/provider/HTTPGetListenerServlet.java
@@ -0,0 +1,94 @@
+/*
+ * 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.binding.http.provider;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URLDecoder;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.invocation.MessageFactory;
+
+/**
+ * Servlet responsible for dispatching HTTP GET requests to the
+ * target component implementation.
+ *
+ * @version $Rev$ $Date$
+ */
+public class HTTPGetListenerServlet extends HttpServlet {
+    private static final long serialVersionUID = 2865466417329430610L;
+    
+    private MessageFactory messageFactory;
+    private Invoker getInvoker;
+    
+    /**
+     * Constructs a new HTTPServiceListenerServlet.
+     */
+    public HTTPGetListenerServlet(Invoker getInvoker, MessageFactory messageFactory) {
+        this.getInvoker = getInvoker;
+        this.messageFactory = messageFactory;
+    }
+
+    @Override
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        // Get the request path
+        String path = URLDecoder.decode(request.getRequestURI().substring(request.getServletPath().length()), "UTF-8");
+        if (path.length() ==0) {
+            
+            // Redirect to a URL ending with / to make relative hrefs work
+            // relative to the served resource.
+            response.sendRedirect(request.getRequestURL().append('/').toString());
+            return;
+        }
+
+        // Invoke the get operation on the service implementation
+        Message requestMessage = messageFactory.createMessage();
+        String id = path.substring(1);
+        requestMessage.setBody(new Object[] {id});
+        Message responseMessage = getInvoker.invoke(requestMessage);
+        if (responseMessage.isFault()) {
+            throw new ServletException((Throwable)responseMessage.getBody());
+        }
+        
+        // Write the response from the service implementation to the response
+        // output stream
+        InputStream is = (InputStream)responseMessage.getBody();
+        OutputStream os = response.getOutputStream(); 
+        byte[] buffer = new byte[2048];
+        for (;;) {
+            int n = is.read(buffer);
+            if (n <= 0)
+                break;
+            os.write(buffer, 0, n);
+        }
+        os.flush();
+        os.close();
+        
+    }
+
+}
-- 
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