1 files changed, 103 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java b/sca-java-2.x/tags/2.0.1-RC1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java
new file mode 100644
index 0000000000..f058e03788
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java
@@ -0,0 +1,103 @@
+/*
+ * 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.host.webapp;
+
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterConfig;
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.tuscany.sca.host.http.ServletHost;
+
+/**
+ * A Servlet filter that forwards service requests to the Servlets registered with
+ * the Tuscany ServletHost.
+ *
+ * @version $Rev$ $Date$
+ */
+public class TuscanyServletFilter implements Filter {
+    private static final long serialVersionUID = 1L;
+    private Logger logger = Logger.getLogger(TuscanyServletFilter.class.getName());
+
+    private transient WebContextConfigurator configurator;
+    private transient ServletHost servletHost;
+
+    public TuscanyServletFilter() {
+        super();
+    }
+
+    public void init(final FilterConfig config) throws ServletException {
+        try {
+            configurator = WebAppHelper.getConfigurator(config);
+            WebAppHelper.init(configurator);
+            servletHost = WebAppHelper.getServletHost();
+        } catch (Throwable e) {
+            logger.log(Level.SEVERE, e.getMessage(), e);
+            configurator.getServletContext().log(e.getMessage(), e);
+            throw new ServletException(e);
+        }
+    }
+
+    public void destroy() {
+        WebAppHelper.stop(configurator);
+        servletHost = null;
+    }
+
+    public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain)
+        throws IOException, ServletException {
+        try {
+            // Get the Servlet path
+            HttpServletRequest httpRequest = (HttpServletRequest)request;
+            String path = httpRequest.getPathInfo();
+            if (path == null) {
+                path = httpRequest.getServletPath();
+            }
+            if (path == null) {
+                path = "/";
+            }
+
+            // Get a request dispatcher for the Servlet mapped to that path
+            RequestDispatcher dispatcher = servletHost.getRequestDispatcher(path);
+            if (dispatcher != null) {
+
+                // Let the dispatcher forward the request to the Servlet 
+                dispatcher.forward(request, response);
+
+            } else {
+
+                // Proceed down the filter chain
+                chain.doFilter(request, response);
+
+            }
+        } catch (Throwable e) {
+            logger.log(Level.SEVERE, e.getMessage(), e);
+            configurator.getServletContext().log(e.getMessage(), e);
+            throw new ServletException(e);
+        }
+    }
+
+}