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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2.1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.2.1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java new file mode 100644 index 0000000000..7750c31967 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/TuscanyServletFilter.java @@ -0,0 +1,101 @@ +/* + * 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.Enumeration; + +import javax.servlet.Filter; +import javax.servlet.FilterConfig; +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; + +/** + * A servlet filter that forwards service requests to the servlets registered with + * the Tuscany ServletHost. + */ +public class TuscanyServletFilter implements Filter { + private static final long serialVersionUID = 1L; + //private static final Logger logger = Logger.getLogger(WebAppServletHost.class.getName()); + + private WebAppServletHost servletHost; + + public void init(final FilterConfig config) throws ServletException { + // TODO: must be a better way to get this than using a static + servletHost = WebAppServletHost.getInstance(); + + // Initialize the servlet host + servletHost.init(new ServletConfig() { + public String getInitParameter(String name) { + return config.getInitParameter(name); + } + + public Enumeration getInitParameterNames() { + return config.getInitParameterNames(); + } + + public ServletContext getServletContext() { + return config.getServletContext(); + } + + public String getServletName() { + return config.getFilterName(); + } + }); + } + + public void destroy() { + WebAppServletHost.getInstance().destroy(); + } + + public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain) + throws IOException, ServletException { + + // 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); + + } + } + +} |