jcr/mvc/JcrManagerController.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.jcr.mvc;
  17
  18 import java.util.List;
  19 import java.util.StringTokenizer;
  20
  21 import javax.jcr.Session;
  22 import javax.servlet.http.HttpServletRequest;
  23 import javax.servlet.http.HttpServletResponse;
  24
  25 import org.apache.commons.fileupload.FileItem;
  26 import org.apache.commons.fileupload.FileItemFactory;
  27 import org.apache.commons.fileupload.disk.DiskFileItemFactory;
  28 import org.apache.commons.fileupload.servlet.ServletFileUpload;
  29 import org.apache.commons.logging.Log;
  30 import org.apache.commons.logging.LogFactory;
  31 import org.argeo.jcr.JcrResourceAdapter;
  32 import org.argeo.server.ServerAnswer;
  33 import org.argeo.server.mvc.MvcConstants;
  34 import org.springframework.core.io.ByteArrayResource;
  35 import org.springframework.stereotype.Controller;
  36 import org.springframework.web.bind.annotation.ModelAttribute;
  37 import org.springframework.web.bind.annotation.RequestMapping;
  38 import org.springframework.web.context.request.RequestAttributes;
  39 import org.springframework.web.context.request.WebRequest;
  40
  41 @Controller
  42 public class JcrManagerController implements MvcConstants, JcrMvcConstants {
  43         private final static Log log = LogFactory
  44                         .getLog(JcrManagerController.class);
  45
  46         // Create a factory for disk-based file items
  47         private FileItemFactory factory = new DiskFileItemFactory();
  48
  49         // Create a new file upload handler
  50         private ServletFileUpload upload = new ServletFileUpload(factory);
  51
  52         @SuppressWarnings("unchecked")
  53         @RequestMapping("/upload/**")
  54         @ModelAttribute(ANSWER_MODEL_KEY_AS_HTML)
  55         public ServerAnswer upload(WebRequest webRequest,
  56                         HttpServletRequest request, HttpServletResponse response)
  57                         throws Exception {
  58
  59                 Session session = ((Session) webRequest.getAttribute(
  60                                 REQUEST_ATTR_SESSION, RequestAttributes.SCOPE_REQUEST));
  61                 JcrResourceAdapter resourceAdapter = new JcrResourceAdapter(session);
  62                 // Parse the request
  63                 List<FileItem> items = upload.parseRequest(request);
  64
  65                 byte[] arr = null;
  66                 for (FileItem item : items) {
  67                         if (!item.isFormField()) {
  68                                 arr = item.get();
  69                                 break;
  70                         }
  71                 }
  72
  73                 ByteArrayResource res = new ByteArrayResource(arr);
  74                 // String pathInfo = request.getPathInfo();
  75
  76                 StringBuffer path = new StringBuffer("/");
  77                 StringTokenizer st = new StringTokenizer(request.getPathInfo(), "/");
  78                 st.nextToken();// skip /upload/
  79                 while (st.hasMoreTokens()) {
  80                         String token = st.nextToken();
  81                         if (!st.hasMoreTokens()) {
  82                                 resourceAdapter.mkdirs(path.toString());
  83                                 path.append(token);
  84                         } else {
  85                                 path.append(token).append('/');
  86                         }
  87                 }
  88                 // String path = '/' + pathInfo.substring(1).substring(
  89                 // pathInfo.indexOf('/'));
  90                 if (log.isDebugEnabled())
  91                         log.debug("Upload to " + path);
  92                 resourceAdapter.update(path.toString(), res.getInputStream());
  93                 return ServerAnswer.ok("File " + path + " imported");
  94         }
  95
  96 }