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.RestResourceWrapper;
  38 import gr.ebs.gss.client.rest.resource.UserResource;
  39 import gr.ebs.gss.client.rest.resource.UserSearchResource;
  40
  41 import java.util.ArrayList;
  42 import java.util.List;
  43
  44 import com.google.gwt.core.client.GWT;
  45 import com.google.gwt.user.client.Command;
  46 import com.google.gwt.user.client.DeferredCommand;
  47 import com.google.gwt.user.client.IncrementalCommand;
  48 import com.google.gwt.user.client.ui.PopupPanel;
  49
  50 /**
  51  * The command that displays the appropriate Properties dialog, according to the
  52  * selected object in the application.
  53  *
  54  * @author kman
  55  */
  56 public class PropertiesCommand implements Command {
  57
  58         final FileMenu.Images newImages;
  59
  60         private PopupPanel containerPanel;
  61
  62         private List<GroupResource> groups = null;
  63
  64         private List<FileResource> versions = null;
  65
  66         private int tabToShow = 0;
  67
  68         private String userName;
  69
  70         /**
  71          * @param _containerPanel
  72          * @param _newImages the images of all the possible delete dialogs
  73          * @param _tab the tab to switch to
  74          */
  75         public PropertiesCommand(PopupPanel _containerPanel, final FileMenu.Images _newImages, int _tab) {
  76                 containerPanel = _containerPanel;
  77                 newImages = _newImages;
  78                 tabToShow = _tab;
  79         }
  80
  81         @Override
  82         public void execute() {
  83                 containerPanel.hide();
  84                 if (GSS.get().getCurrentSelection() instanceof RestResourceWrapper) {
  85                         GetCommand<FolderResource> eg = new GetCommand<FolderResource>(FolderResource.class, ((RestResourceWrapper) GSS.get().getCurrentSelection()).getUri(),((RestResourceWrapper) GSS.get().getCurrentSelection()).getResource()) {
  86
  87                                 @Override
  88                                 public void onComplete() {
  89                                         ((RestResourceWrapper) GSS.get().getCurrentSelection()).setResource(getResult());
  90                                         initialize();
  91                                 }
  92
  93                                 @Override
  94                                 public void onError(Throwable t) {
  95
  96                                 }
  97
  98                         };
  99                         DeferredCommand.addCommand(eg);
 100                 }
 101                 else if (GSS.get().getCurrentSelection() instanceof FileResource) {
 102                         final String path = ((FileResource) GSS.get().getCurrentSelection()).getUri();
 103                         // Needed because firefox caches head requests.
 104                         HeadCommand<FileResource> eg = new HeadCommand<FileResource>(FileResource.class, path+"?"+Math.random(), null ) {
 105
 106                                 @Override
 107                                 public void onComplete() {
 108                                         FileResource res = getResult();
 109                                         GSS.get().setCurrentSelection(res);
 110                                         initialize();
 111                                 }
 112
 113                                 @Override
 114                                 public void onError(Throwable t) {
 115                                         if(t instanceof RestException)
 116                                                 GSS.get().displayError("Unable to retrieve file details:"+((RestException)t).getHttpStatusText());
 117                                 }
 118
 119                         };
 120                         DeferredCommand.addCommand(eg);
 121                 }
 122                 else if (GSS.get().getCurrentSelection() instanceof List) {
 123                         List<String> paths = new ArrayList<String>();
 124                         for (FileResource fr : (List<FileResource>) GSS.get().getCurrentSelection())
 125                                 paths.add(fr.getUri()+"?"+Math.random());
 126                         Cached[] cached = new Cached[paths.size()];
 127                         int i=0;
 128                         for (FileResource fr : (List<FileResource>) GSS.get().getCurrentSelection()){
 129                                 Cached c = new Cached();
 130                                 c.uri=fr.getUri()+"?"+Math.random();
 131                                 c.cache=fr;
 132                                 cached[i]=c;
 133                                 i++;
 134                         }
 135                         MultipleHeadCommand<FileResource> gv = new MultipleHeadCommand<FileResource>(FileResource.class, paths.toArray(new String[] {}),cached) {
 136
 137                                 @Override
 138                                 public void onComplete() {
 139                                         List<FileResource> res = getResult();
 140                                         GSS.get().setCurrentSelection(res);
 141                                         FilesPropertiesDialog dlg = new FilesPropertiesDialog(res);
 142                                         dlg.selectTab(tabToShow);
 143                                         dlg.center();
 144                                 }
 145
 146                                 @Override
 147                                 public void onError(Throwable t) {
 148                                         GWT.log("", t);
 149                                         GSS.get().displayError("Unable to fetch files details");
 150                                 }
 151
 152                                 @Override
 153                                 public void onError(String p, Throwable throwable) {
 154                                         GWT.log("Path:" + p, throwable);
 155                                 }
 156                         };
 157                         DeferredCommand.addCommand(gv);
 158                 }
 159         }
 160
 161         private void initialize(){
 162                 getGroups();
 163                 getVersions();
 164                 getOwnerFullName();
 165                 DeferredCommand.addCommand(new IncrementalCommand() {
 166
 167                         @Override
 168                         public boolean execute() {
 169                                 boolean res = canContinue();
 170                                 if (res) {
 171                                         displayProperties(newImages, GSS.get().findUserFullName(userName));
 172                                         return false;
 173                                 }
 174                                 return true;
 175                         }
 176
 177                 });
 178
 179         }
 180
 181         private boolean canContinue() {
 182                 String userFullNameFromMap = GSS.get().findUserFullName(userName);
 183                 if(groups == null || versions == null || userFullNameFromMap == null)
 184                         return false;
 185                 return true;
 186         }
 187
 188         /**
 189          * Display the appropriate Properties dialog, according to the selected
 190          * object in the application.
 191          *
 192          * @param propImages the images of all the possible properties dialogs
 193          */
 194         void displayProperties(final Images propImages, final String _userName) {
 195                 if (GSS.get().getCurrentSelection() instanceof RestResourceWrapper) {
 196                         FolderPropertiesDialog dlg = new FolderPropertiesDialog(propImages, false, groups);
 197                         dlg.selectTab(tabToShow);
 198                         dlg.center();
 199                 } else if (GSS.get().getCurrentSelection() instanceof FileResource) {
 200                         FilePropertiesDialog dlg = new FilePropertiesDialog(propImages, groups, versions, _userName);
 201                         dlg.selectTab(tabToShow);
 202                         dlg.center();
 203                 }
 204         }
 205
 206         private void getGroups() {
 207                 GetCommand<GroupsResource> gg = new GetCommand<GroupsResource>(GroupsResource.class, GSS.get().getCurrentUserResource().getGroupsPath(), null) {
 208
 209                         @Override
 210                         public void onComplete() {
 211                                 GroupsResource res = getResult();
 212                                 MultipleGetCommand<GroupResource> ga = new MultipleGetCommand<GroupResource>(GroupResource.class, res.getGroupPaths().toArray(new String[] {}), null) {
 213
 214                                         @Override
 215                                         public void onComplete() {
 216                                                 List<GroupResource> groupList = getResult();
 217                                                 groups = groupList;
 218                                         }
 219
 220                                         @Override
 221                                         public void onError(Throwable t) {
 222                                                 GWT.log("", t);
 223                                                 GSS.get().displayError("Unable to fetch groups");
 224                                                 groups = new ArrayList<GroupResource>();
 225                                         }
 226
 227                                         @Override
 228                                         public void onError(String p, Throwable throwable) {
 229                                                 GWT.log("Path:" + p, throwable);
 230                                         }
 231                                 };
 232                                 DeferredCommand.addCommand(ga);
 233                         }
 234
 235                         @Override
 236                         public void onError(Throwable t) {
 237                                 GWT.log("", t);
 238                                 GSS.get().displayError("Unable to fetch groups");
 239                                 groups = new ArrayList<GroupResource>();
 240                         }
 241                 };
 242                 DeferredCommand.addCommand(gg);
 243         }
 244
 245         private void getVersions() {
 246                 if (GSS.get().getCurrentSelection() instanceof FileResource) {
 247                         FileResource afile = (FileResource) GSS.get().getCurrentSelection();
 248                         GWT.log("File is versioned:" + afile.isVersioned(), null);
 249                         if (afile.isVersioned()) {
 250                                 List<String> paths = new ArrayList<String>();
 251                                 for (int i = 1; i <= afile.getVersion(); i++)
 252                                         paths.add(afile.getUri() + "?version=" + i);
 253                                 MultipleHeadCommand<FileResource> gv = new MultipleHeadCommand<FileResource>(FileResource.class, paths.toArray(new String[] {}), null) {
 254
 255                                         @Override
 256                                         public void onComplete() {
 257                                                 versions = getResult();
 258                                         }
 259
 260                                         @Override
 261                                         public void onError(Throwable t) {
 262                                                 GWT.log("", t);
 263                                                 GSS.get().displayError("Unable to fetch versions");
 264                                                 versions = new ArrayList<FileResource>();
 265                                         }
 266
 267                                         @Override
 268                                         public void onError(String p, Throwable throwable) {
 269                                                 GWT.log("Path:" + p, throwable);
 270                                         }
 271                                 };
 272                                 DeferredCommand.addCommand(gv);
 273                         } else
 274                                 versions = new ArrayList<FileResource>();
 275                 } else
 276                         versions = new ArrayList<FileResource>();
 277         }
 278
 279         private void getOwnerFullName() {
 280                 if(GSS.get().getCurrentSelection() instanceof FileResource){
 281                         FileResource fileResource = (FileResource) GSS.get().getCurrentSelection();
 282                         userName = fileResource.getOwner();
 283                         if(GSS.get().findUserFullName(userName) == null){
 284                                 GetUserCommand gu = new GetUserCommand(userName);
 285                                 gu.execute();
 286                         }
 287                 }else{
 288                         FolderResource resource = ((RestResourceWrapper) GSS.get().getCurrentSelection()).getResource();
 289                         userName = resource.getOwner();
 290                         if(GSS.get().findUserFullName(userName) == null){
 291                                 GetUserCommand gu = new GetUserCommand(userName);
 292                                 gu.execute();
 293                         }
 294                 }
 295         }
 296
 297
 298 }