runtime/org.argeo.slc.server/src/main/java/org/argeo/slc/web/mvc/provisioning/EclipseUpdateSiteInterceptor.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 EclipseUpdateSiteInterceptor extends HandlerInterceptorAdapter {
  28         public final static String RELEASE = "RELEASE";
  29         public final static String LATEST = "LATEST";
  30
  31         @Override
  32         public boolean preHandle(HttpServletRequest request,
  33                         HttpServletResponse response, Object handler) throws Exception {
  34                 String path = request.getPathInfo();
  35                 StringTokenizer stS = new StringTokenizer(path, "/");
  36                 String type = null;
  37                 pathTokenizer: while (stS.hasMoreTokens()) {
  38                         String token = stS.nextToken();
  39                         if (token.equals("plugins") || token.equals("features")) {
  40                                 type = token;
  41                                 break pathTokenizer;
  42                         }
  43                 }
  44
  45                 if (type == null || !stS.hasMoreTokens())
  46                         throw new SlcException("Cannot determine file name from path "
  47                                         + path);
  48
  49                 String fileName = stS.nextToken();
  50
  51                 int ind_ = fileName.indexOf('_');
  52                 String moduleName;
  53                 if (ind_ > -1)
  54                         moduleName = fileName.substring(0, ind_);
  55                 else
  56                         throw new SlcException("Cannot determine version for " + fileName);
  57
  58                 String versionAndExtension = fileName.substring(ind_ + 1);
  59                 int indExt = versionAndExtension.lastIndexOf('.');
  60                 String moduleVersion = versionAndExtension.substring(0, indExt);
  61
  62                 request.setAttribute("moduleName", moduleName);
  63                 request.setAttribute("moduleVersion", moduleVersion);
  64
  65                 return true;
  66         }
  67 }