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

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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 package org.argeo.slc.web.mvc.provisioning;
  17
  18 import java.util.StringTokenizer;
  19
  20 import javax.servlet.http.HttpServletRequest;
  21 import javax.servlet.http.HttpServletResponse;
  22
  23 import org.argeo.slc.SlcException;
  24 import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
  25
  26 public class BundleJarInterceptor extends HandlerInterceptorAdapter {
  27
  28         @Override
  29         public boolean preHandle(HttpServletRequest request,
  30                         HttpServletResponse response, Object handler) throws Exception {
  31                 String path = request.getPathInfo();
  32                 StringTokenizer stS = new StringTokenizer(path, "/");
  33                 String fileName = null;
  34                 while (stS.hasMoreTokens()) {
  35                         String token = stS.nextToken();
  36                         if (!stS.hasMoreTokens()) {
  37                                 fileName = token;
  38                         }
  39                 }
  40
  41                 int ind_ = fileName.indexOf('-');
  42                 String moduleName;
  43                 if (ind_ > -1)
  44                         moduleName = fileName.substring(0, ind_);
  45                 else
  46                         throw new SlcException("Cannot determine version for " + fileName);
  47
  48                 String versionAndExtension = fileName.substring(ind_ + 1);
  49                 int indExt = versionAndExtension.lastIndexOf('.');
  50                 String moduleVersion = versionAndExtension.substring(0, indExt);
  51
  52                 request.setAttribute("moduleName", moduleName);
  53                 request.setAttribute("moduleVersion", moduleVersion);
  54
  55                 return true;
  56         }
  57 }