plugins/org.argeo.slc.client.rap/src/main/java/org/argeo/slc/client/ui/specific/OpenJcrFile.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   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.client.ui.specific;
  17
  18 import java.net.URL;
  19
  20 import javax.jcr.Session;
  21
  22 import org.apache.commons.logging.Log;
  23 import org.apache.commons.logging.LogFactory;
  24 import org.argeo.jcr.JcrUtils;
  25 import org.argeo.slc.client.rap.OpenJcrFileService;
  26 import org.argeo.slc.client.rap.SlcRapPlugin;
  27 import org.argeo.slc.repo.RepoService;
  28 import org.eclipse.core.commands.AbstractHandler;
  29 import org.eclipse.core.commands.ExecutionEvent;
  30 import org.eclipse.core.commands.ExecutionException;
  31 import org.eclipse.rwt.RWT;
  32 import org.eclipse.rwt.service.IServiceHandler;
  33 import org.eclipse.ui.PlatformUI;
  34
  35 /**
  36  * Rap specific command handler to open a file retrieved from a distant JCR
  37  * Repository. It forwards the request to the correct service after encoding
  38  * file name and path in the request URI.
  39  *
  40  * This command and the corresponding service are specific for RAP version [1.3,
  41  * 2)
  42  */
  43 public class OpenJcrFile extends AbstractHandler {
  44         private final static Log log = LogFactory.getLog(OpenJcrFile.class);
  45
  46         public final static String ID = SlcRapPlugin.PLUGIN_ID + ".openJcrFile";
  47
  48         public final static String PARAM_REPO_NODE_PATH = OpenJcrFileService.PARAM_REPO_NODE_PATH;
  49         public final static String PARAM_REPO_URI = OpenJcrFileService.PARAM_REPO_URI;
  50         public final static String PARAM_WORKSPACE_NAME = OpenJcrFileService.PARAM_WORKSPACE_NAME;
  51         public final static String PARAM_FILE_PATH = OpenJcrFileService.PARAM_FILE_PATH;
  52
  53         private RepoService repoService;
  54
  55         public Object execute(ExecutionEvent event) throws ExecutionException {
  56
  57                 String repoNodePath = event.getParameter(PARAM_REPO_NODE_PATH);
  58                 String repoUri = event.getParameter(PARAM_REPO_URI);
  59                 String wkspName = event.getParameter(PARAM_WORKSPACE_NAME);
  60                 String filePath = event.getParameter(PARAM_FILE_PATH);
  61
  62                 // TODO remove
  63                 Session session = repoService.getRemoteSession(repoNodePath, repoUri,
  64                                 wkspName);
  65                 JcrUtils.logoutQuietly(session);
  66
  67                 // TODO sanity check
  68                 if (filePath == null || "".equals(filePath.trim()))
  69                         return null;
  70
  71                 try {
  72                         if (log.isDebugEnabled())
  73                                 log.debug("URL : "
  74                                                 + createFullDownloadUrl(repoNodePath, repoUri,
  75                                                                 wkspName, filePath));
  76                         // RWT.getResponse().sendRedirect(createFullDownloadUrl(repoNodePath,
  77                         // repoUri,
  78                         // wkspName, filePath));
  79
  80                         URL url = new URL(createFullDownloadUrl(repoNodePath, repoUri,
  81                                         wkspName, filePath));
  82                         PlatformUI.getWorkbench().getBrowserSupport()
  83                                         .createBrowser("DownloadDialog").openURL(url);
  84                 } catch (Exception e) {
  85                         e.printStackTrace();
  86                 }
  87
  88                 return null;
  89         }
  90
  91         private String createFullDownloadUrl(String repoNodePath, String repoUri,
  92                         String wkspName, String filePath) {
  93                 StringBuilder url = new StringBuilder();
  94                 url.append(RWT.getRequest().getRequestURL());
  95
  96                 StringBuilder params = new StringBuilder();
  97                 params.append("?");
  98                 params.append(IServiceHandler.REQUEST_PARAM).append("=");
  99                 params.append(OpenJcrFileService.ID);
 100                 if (repoNodePath != null)
 101                         params.append("&").append(OpenJcrFileService.PARAM_REPO_NODE_PATH)
 102                                         .append("=").append(repoNodePath);
 103
 104                 if (repoUri != null)
 105                         params.append("&").append(OpenJcrFileService.PARAM_REPO_URI)
 106                                         .append("=").append(repoUri);
 107
 108                 if (wkspName != null)
 109                         params.append("&").append(OpenJcrFileService.PARAM_WORKSPACE_NAME)
 110                                         .append("=").append(wkspName);
 111
 112                 if (filePath != null)
 113                         params.append("&").append(OpenJcrFileService.PARAM_FILE_PATH)
 114                                         .append("=").append(filePath);
 115
 116                 String encodedURL = RWT.getResponse().encodeURL(params.toString());
 117                 url.append(encodedURL);
 118
 119                 return url.toString();
 120         }
 121
 122         /* Dependency Injection */
 123         // only used as a workaround to force the service instantiation
 124         public void setOpenJcrFileService(OpenJcrFileService openJcrFileService) {
 125                 // do nothing.
 126         }
 127
 128         public void setRepoService(RepoService repoService) {
 129                 this.repoService = repoService;
 130         }
 131
 132 }