runtime/org.argeo.slc.server/src/main/java/org/argeo/slc/web/mvc/provisioning/BundleJarInterceptor.java

   1 /*
   2  * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.argeo.slc.web.mvc.provisioning;
  18
  19 import java.util.StringTokenizer;
  20
  21 import javax.servlet.http.HttpServletRequest;
  22 import javax.servlet.http.HttpServletResponse;
  23
  24 import org.argeo.slc.SlcException;
  25 import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
  26
  27 public class BundleJarInterceptor extends HandlerInterceptorAdapter {
  28
  29         @Override
  30         public boolean preHandle(HttpServletRequest request,
  31                         HttpServletResponse response, Object handler) throws Exception {
  32                 String path = request.getPathInfo();
  33                 StringTokenizer stS = new StringTokenizer(path, "/");
  34                 String fileName = null;
  35                 while (stS.hasMoreTokens()) {
  36                         String token = stS.nextToken();
  37                         if (!stS.hasMoreTokens()) {
  38                                 fileName = token;
  39                         }
  40                 }
  41
  42                 int ind_ = fileName.indexOf('-');
  43                 String moduleName;
  44                 if (ind_ > -1)
  45                         moduleName = fileName.substring(0, ind_);
  46                 else
  47                         throw new SlcException("Cannot determine version for " + fileName);
  48
  49                 String versionAndExtension = fileName.substring(ind_ + 1);
  50                 int indExt = versionAndExtension.lastIndexOf('.');
  51                 String moduleVersion = versionAndExtension.substring(0, indExt);
  52
  53                 request.setAttribute("moduleName", moduleName);
  54                 request.setAttribute("moduleVersion", moduleVersion);
  55
  56                 return true;
  57         }
  58 }