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author | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2009-10-30 08:29:42 +0000 |
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committer | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2009-10-30 08:29:42 +0000 |
commit | 4537071c7caf6b151c6984fad1e11dbf698f50b0 (patch) | |
tree | 19a47825293ff495d36322ae89c00d821e834649 /branches/sca-java-2.0-M4/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java | |
parent | fb3dd9a9095abc40027318b1712d0184f6d60e73 (diff) |
Create 2.0-M4 release branch
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@831226 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java b/branches/sca-java-2.0-M4/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java new file mode 100644 index 0000000000..76cce939ad --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/host-webapp/src/main/java/org/apache/tuscany/sca/host/webapp/WebAppRequestDispatcher.java @@ -0,0 +1,117 @@ +/* + * 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.StringTokenizer; + +import javax.servlet.RequestDispatcher; +import javax.servlet.Servlet; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletRequestWrapper; + +/** + * A Servlet request dispatcher that can be used to delegate requests to a + * Servlet registered with the Webapp Servlet host. + * + * @version $Rev$ $Date$ + */ +class WebAppRequestDispatcher implements RequestDispatcher { + private String servletPath; + private Servlet servlet; + + public WebAppRequestDispatcher(String mapping, Servlet servlet) { + if (mapping.endsWith("*")) { + mapping = mapping.substring(0, mapping.length()-1); + } + if (mapping.endsWith("/")) { + mapping = mapping.substring(0, mapping.length()-1); + } + this.servletPath = mapping; + this.servlet = servlet; + } + + /** + * Returns a request wrapper which will return the correct Servlet path + * and path info. + * + * @param request + * @return + */ + private HttpServletRequest createRequestWrapper(ServletRequest request) { + HttpServletRequest requestWrapper = new HttpServletRequestWrapper((HttpServletRequest)request) { + + @Override + public String getServletPath() { + return servletPath; + } + + @Override + public String getPathInfo() { + String path = super.getServletPath(); + if (path.length() == 0) { + path = super.getPathInfo(); + } + + // TODO: another context path hack, revisit when context path is sorted out + path = fiddlePath(path, servletPath); + + return path; + } + }; + return requestWrapper; + } + + /** + * Remove any path suffix thats part of the Servlet context path + */ + protected String fiddlePath(String path, String servletPath) { + if (path.startsWith(servletPath)) { + return path.substring(servletPath.length()); + } + StringTokenizer st = new StringTokenizer(path, "/"); + if (st.countTokens() == 1) { + return path; + } + String root = ""; + while (st.hasMoreTokens()){ + String s = st.nextToken(); + if (servletPath.endsWith((root + "/" + s))) { + root += "/" + s; + } else { + break; + } + } + String fiddlePath = path.substring(root.length()); + return fiddlePath; + } + + public void forward(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } + + public void include(ServletRequest request, ServletResponse response) throws ServletException, IOException { + servlet.service(createRequestWrapper(request), response); + } +} + |