code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/commands/PropertiesCommand.java

   1 /*
   2  * Copyright 2008, 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client.commands;
  20
  21 import gr.ebs.gss.client.FileMenu;
  22 import gr.ebs.gss.client.FilePropertiesDialog;
  23 import gr.ebs.gss.client.FilesPropertiesDialog;
  24 import gr.ebs.gss.client.FolderPropertiesDialog;
  25 import gr.ebs.gss.client.GSS;
  26 import gr.ebs.gss.client.FileMenu.Images;
  27 import gr.ebs.gss.client.rest.GetCommand;
  28 import gr.ebs.gss.client.rest.HeadCommand;
  29 import gr.ebs.gss.client.rest.MultipleGetCommand;
  30 import gr.ebs.gss.client.rest.MultipleHeadCommand;
  31 import gr.ebs.gss.client.rest.RestException;
  32 import gr.ebs.gss.client.rest.MultipleGetCommand.Cached;
  33 import gr.ebs.gss.client.rest.resource.FileResource;
  34 import gr.ebs.gss.client.rest.resource.FolderResource;
  35 import gr.ebs.gss.client.rest.resource.GroupResource;
  36 import gr.ebs.gss.client.rest.resource.GroupsResource;
  37 import gr.ebs.gss.client.rest.resource.UserResource;
  38 import gr.ebs.gss.client.rest.resource.UserSearchResource;
  39
  40 import java.util.ArrayList;
  41 import java.util.List;
  42
  43 import com.google.gwt.core.client.GWT;
  44 import com.google.gwt.user.client.Command;
  45 import com.google.gwt.user.client.DeferredCommand;
  46 import com.google.gwt.user.client.IncrementalCommand;
  47 import com.google.gwt.user.client.ui.PopupPanel;
  48
  49 /**
  50  * The command that displays the appropriate Properties dialog, according to the
  51  * selected object in the application.
  52  *
  53  * @author kman
  54  */
  55 public class PropertiesCommand implements Command {
  56
  57         final FileMenu.Images newImages;
  58
  59         private PopupPanel containerPanel;
  60
  61         private List<GroupResource> groups = null;
  62
  63         private List<FileResource> versions = null;
  64
  65         private int tabToShow = 0;
  66
  67         private String userName;
  68
  69         /**
  70          * @param _containerPanel
  71          * @param _newImages the images of all the possible delete dialogs
  72          * @param _tab the tab to switch to
  73          */
  74         public PropertiesCommand(PopupPanel _containerPanel, final FileMenu.Images _newImages, int _tab) {
  75                 containerPanel = _containerPanel;
  76                 newImages = _newImages;
  77                 tabToShow = _tab;
  78         }
  79
  80         @Override
  81         public void execute() {
  82                 containerPanel.hide();
  83                 if (GSS.get().getCurrentSelection() instanceof FolderResource) {
  84                         GetCommand<FolderResource> eg = new GetCommand<FolderResource>(FolderResource.class, ((FolderResource) GSS.get().getCurrentSelection()).getUri(),((FolderResource) GSS.get().getCurrentSelection())) {
  85
  86                                 @Override
  87                                 public void onComplete() {
  88                                         GSS.get().setCurrentSelection(getResult());
  89                                         initialize();
  90                                 }
  91
  92                                 @Override
  93                                 public void onError(Throwable t) {
  94
  95                                 }
  96
  97                         };
  98                         DeferredCommand.addCommand(eg);
  99                 }
 100                 else if (GSS.get().getCurrentSelection() instanceof FileResource) {
 101                         final String path = ((FileResource) GSS.get().getCurrentSelection()).getUri();
 102                         // Needed because firefox caches head requests.
 103                         HeadCommand<FileResource> eg = new HeadCommand<FileResource>(FileResource.class, path+"?"+Math.random(), null ) {
 104
 105                                 @Override
 106                                 public void onComplete() {
 107                                         FileResource res = getResult();
 108                                         GSS.get().setCurrentSelection(res);
 109                                         initialize();
 110                                 }
 111
 112                                 @Override
 113                                 public void onError(Throwable t) {
 114                                         if(t instanceof RestException)
 115                                                 GSS.get().displayError("Unable to retrieve file details:"+((RestException)t).getHttpStatusText());
 116                                 }
 117
 118                         };
 119                         DeferredCommand.addCommand(eg);
 120                 }
 121                 else if (GSS.get().getCurrentSelection() instanceof List) {
 122                         List<String> paths = new ArrayList<String>();
 123                         for (FileResource fr : (List<FileResource>) GSS.get().getCurrentSelection())
 124                                 paths.add(fr.getUri()+"?"+Math.random());
 125                         Cached[] cached = new Cached[paths.size()];
 126                         int i=0;
 127                         for (FileResource fr : (List<FileResource>) GSS.get().getCurrentSelection()){
 128                                 Cached c = new Cached();
 129                                 c.uri=fr.getUri()+"?"+Math.random();
 130                                 c.cache=fr;
 131                                 cached[i]=c;
 132                                 i++;
 133                         }
 134                         MultipleHeadCommand<FileResource> gv = new MultipleHeadCommand<FileResource>(FileResource.class, paths.toArray(new String[] {}),cached) {
 135
 136                                 @Override
 137                                 public void onComplete() {
 138                                         List<FileResource> res = getResult();
 139                                         GSS.get().setCurrentSelection(res);
 140                                         FilesPropertiesDialog dlg = new FilesPropertiesDialog(res);
 141                                         dlg.selectTab(tabToShow);
 142                                         dlg.center();
 143                                 }
 144
 145                                 @Override
 146                                 public void onError(Throwable t) {
 147                                         GWT.log("", t);
 148                                         GSS.get().displayError("Unable to fetch files details");
 149                                 }
 150
 151                                 @Override
 152                                 public void onError(String p, Throwable throwable) {
 153                                         GWT.log("Path:" + p, throwable);
 154                                 }
 155                         };
 156                         DeferredCommand.addCommand(gv);
 157                 }
 158         }
 159
 160         private void initialize(){
 161                 getGroups();
 162                 getVersions();
 163                 getOwnerFullName();
 164                 DeferredCommand.addCommand(new IncrementalCommand() {
 165
 166                         @Override
 167                         public boolean execute() {
 168                                 boolean res = canContinue();
 169                                 if (res) {
 170                                         displayProperties(newImages, GSS.get().findUserFullName(userName));
 171                                         return false;
 172                                 }
 173                                 return true;
 174                         }
 175
 176                 });
 177
 178         }
 179
 180         private boolean canContinue() {
 181                 String userFullNameFromMap = GSS.get().findUserFullName(userName);
 182                 if(groups == null || versions == null || userFullNameFromMap == null)
 183                         return false;
 184                 return true;
 185         }
 186
 187         /**
 188          * Display the appropriate Properties dialog, according to the selected
 189          * object in the application.
 190          *
 191          * @param propImages the images of all the possible properties dialogs
 192          */
 193         void displayProperties(final Images propImages, final String _userName) {
 194                 if (GSS.get().getCurrentSelection() instanceof FolderResource) {
 195                         FolderPropertiesDialog dlg = new FolderPropertiesDialog(propImages, false, groups);
 196                         dlg.selectTab(tabToShow);
 197                         dlg.center();
 198                 } else if (GSS.get().getCurrentSelection() instanceof FileResource) {
 199                         FilePropertiesDialog dlg = new FilePropertiesDialog(propImages, groups, versions, _userName);
 200                         dlg.selectTab(tabToShow);
 201                         dlg.center();
 202                 }
 203         }
 204
 205         private void getGroups() {
 206                 GetCommand<GroupsResource> gg = new GetCommand<GroupsResource>(GroupsResource.class, GSS.get().getCurrentUserResource().getGroupsPath(), null) {
 207
 208                         @Override
 209                         public void onComplete() {
 210                                 GroupsResource res = getResult();
 211                                 MultipleGetCommand<GroupResource> ga = new MultipleGetCommand<GroupResource>(GroupResource.class, res.getGroupPaths().toArray(new String[] {}), null) {
 212
 213                                         @Override
 214                                         public void onComplete() {
 215                                                 List<GroupResource> groupList = getResult();
 216                                                 groups = groupList;
 217                                         }
 218
 219                                         @Override
 220                                         public void onError(Throwable t) {
 221                                                 GWT.log("", t);
 222                                                 GSS.get().displayError("Unable to fetch groups");
 223                                                 groups = new ArrayList<GroupResource>();
 224                                         }
 225
 226                                         @Override
 227                                         public void onError(String p, Throwable throwable) {
 228                                                 GWT.log("Path:" + p, throwable);
 229                                         }
 230                                 };
 231                                 DeferredCommand.addCommand(ga);
 232                         }
 233
 234                         @Override
 235                         public void onError(Throwable t) {
 236                                 GWT.log("", t);
 237                                 GSS.get().displayError("Unable to fetch groups");
 238                                 groups = new ArrayList<GroupResource>();
 239                         }
 240                 };
 241                 DeferredCommand.addCommand(gg);
 242         }
 243
 244         private void getVersions() {
 245                 if (GSS.get().getCurrentSelection() instanceof FileResource) {
 246                         FileResource afile = (FileResource) GSS.get().getCurrentSelection();
 247                         GWT.log("File is versioned:" + afile.isVersioned(), null);
 248                         if (afile.isVersioned()) {
 249                                 List<String> paths = new ArrayList<String>();
 250                                 for (int i = 1; i <= afile.getVersion(); i++)
 251                                         paths.add(afile.getUri() + "?version=" + i);
 252                                 MultipleHeadCommand<FileResource> gv = new MultipleHeadCommand<FileResource>(FileResource.class, paths.toArray(new String[] {}), null) {
 253
 254                                         @Override
 255                                         public void onComplete() {
 256                                                 versions = getResult();
 257                                         }
 258
 259                                         @Override
 260                                         public void onError(Throwable t) {
 261                                                 GWT.log("", t);
 262                                                 GSS.get().displayError("Unable to fetch versions");
 263                                                 versions = new ArrayList<FileResource>();
 264                                         }
 265
 266                                         @Override
 267                                         public void onError(String p, Throwable throwable) {
 268                                                 GWT.log("Path:" + p, throwable);
 269                                         }
 270                                 };
 271                                 DeferredCommand.addCommand(gv);
 272                         } else
 273                                 versions = new ArrayList<FileResource>();
 274                 } else
 275                         versions = new ArrayList<FileResource>();
 276         }
 277
 278         private void getOwnerFullName() {
 279                 if(GSS.get().getCurrentSelection() instanceof FileResource){
 280                         FileResource fileResource = (FileResource) GSS.get().getCurrentSelection();
 281                         userName = fileResource.getOwner();
 282                         if(GSS.get().findUserFullName(userName) == null){
 283                                 GetUserCommand gu = new GetUserCommand(userName);
 284                                 gu.execute();
 285                         }
 286                 }else{
 287                         FolderResource resource = (FolderResource) GSS.get().getCurrentSelection();
 288                         userName = resource.getOwner();
 289                         if(GSS.get().findUserFullName(userName) == null){
 290                                 GetUserCommand gu = new GetUserCommand(userName);
 291                                 gu.execute();
 292                         }
 293                 }
 294         }
 295
 296
 297 }