runtime/org.argeo.slc.server/src/main/java/org/argeo/slc/web/ajaxplorer/file/FileDownloadAction.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.ajaxplorer.file;
  17
  18 import java.io.File;
  19
  20 import javax.servlet.http.HttpServletResponse;
  21
  22 public class FileDownloadAction extends AbstractFileDownloadAction {
  23
  24         @Override
  25         protected void setHeaders(HttpServletResponse response, File file) {
  26                 setDefaultDownloadHeaders(response, file.getName(), file.length());
  27         }
  28
  29         public static void setDefaultDownloadHeaders(HttpServletResponse response,
  30                         String fileName, Long fileLength) {
  31                 response.setContentType("application/force-download; name=\""
  32                                 + fileName + "\"");
  33                 response.setHeader("Content-Transfer-Encoding", "binary");
  34                 if (fileLength != null)
  35                         response.setContentLength(fileLength.intValue());
  36                 response.setHeader("Content-Disposition", "attachement; filename=\""
  37                                 + fileName + "\"");
  38                 response.setHeader("Expires", "0");
  39                 response.setHeader("Cache-Control", "no-cache, must-revalidate");
  40                 response.setHeader("Pragma", "no-cache");
  41         }
  42 }