code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/commands/RestoreTrashCommand.java

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client.commands;
  36
  37 import java.util.Iterator;
  38 import java.util.List;
  39
  40 import gr.grnet.pithos.web.client.Pithos;
  41 import gr.grnet.pithos.web.client.foldertree.File;
  42 import gr.grnet.pithos.web.client.foldertree.Folder;
  43 import gr.grnet.pithos.web.client.foldertree.Resource;
  44 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  45 import gr.grnet.pithos.web.client.rest.GetRequest;
  46 import gr.grnet.pithos.web.client.rest.PutRequest;
  47 import gr.grnet.pithos.web.client.rest.RestException;
  48
  49 import com.google.gwt.core.client.GWT;
  50 import com.google.gwt.core.client.Scheduler;
  51 import com.google.gwt.http.client.Response;
  52 import com.google.gwt.http.client.URL;
  53 import com.google.gwt.user.client.Command;
  54 import com.google.gwt.user.client.ui.PopupPanel;
  55
  56
  57 /**
  58  *
  59  * Restore trashed files and folders.
  60  *
  61  */
  62 public class RestoreTrashCommand implements Command {
  63         private PopupPanel containerPanel;
  64         protected Pithos app;
  65         protected Object resource;
  66
  67         public RestoreTrashCommand(Pithos _app, PopupPanel _containerPanel, Object _resource){
  68                 containerPanel = _containerPanel;
  69         app = _app;
  70         resource = _resource;
  71         }
  72
  73         @Override
  74         public void execute() {
  75         if (containerPanel != null)
  76                 containerPanel.hide();
  77         if (resource instanceof List) {
  78             @SuppressWarnings("unchecked")
  79                         Iterator<File> iter = ((List<File>) resource).iterator();
  80             untrashFiles(iter, new Command() {
  81                 @SuppressWarnings("unchecked")
  82                                 @Override
  83                 public void execute() {
  84                     app.updateFolder(((List<File>) resource).get(0).getParent(), true, null);
  85                 }
  86             });
  87         }
  88         else if (resource instanceof Folder) {
  89             final Folder toBeUnTrashed = (Folder) resource;
  90             untrashFolder(toBeUnTrashed, new Command() {
  91                 @Override
  92                 public void execute() {
  93                     app.updateFolder(toBeUnTrashed.getParent(), true, null);
  94                 }
  95             });
  96
  97         }
  98         }
  99
 100     private void untrashFolder(final Folder f, final Command callback) {
 101         String path = "/" + Pithos.HOME_CONTAINER + "/" + f.getPrefix();
 102         PutRequest createFolder = new PutRequest(app.getApiPath(), app.getUsername(), path) {
 103             @Override
 104             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 105                 GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()), f) {
 106
 107                                         @Override
 108                                         public void onSuccess(final Folder _f) {
 109                                 Iterator<File> iter = _f.getFiles().iterator();
 110                                 untrashFiles(iter, new Command() {
 111                                     @Override
 112                                     public void execute() {
 113                                         Iterator<Folder> iterf = _f.getSubfolders().iterator();
 114                                         untrashSubfolders(iterf, new Command() {
 115
 116                                                                         @Override
 117                                                                         public void execute() {
 118                                                                                 DeleteRequest deleteFolder = new DeleteRequest(app.getApiPath(), _f.getOwner(), _f.getUri()) {
 119
 120                                                                                         @Override
 121                                                                                         public void onSuccess(@SuppressWarnings("unused") Resource _result) {
 122                                                                                                 app.updateRootFolder(callback);
 123                                                                                         }
 124
 125                                                                                         @Override
 126                                                                                         public void onError(Throwable t) {
 127                                                                             GWT.log("", t);
 128                                                                                                 app.setError(t);
 129                                                                             if (t instanceof RestException) {
 130                                                                                 if (((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND)
 131                                                                                         onSuccess(null);
 132                                                                                 else
 133                                                                                         app.displayError("Unable to delete folder: " + ((RestException) t).getHttpStatusText());
 134                                                                             }
 135                                                                             else
 136                                                                                 app.displayError("System error unable to delete folder: "+t.getMessage());
 137                                                                                         }
 138
 139                                                                                         @Override
 140                                                                                         protected void onUnauthorized(Response response) {
 141                                                                                                 app.sessionExpired();
 142                                                                                         }
 143                                                                                 };
 144                                                                                 deleteFolder.setHeader("X-Auth-Token", app.getToken());
 145                                                                                 Scheduler.get().scheduleDeferred(deleteFolder);
 146                                                                         }
 147                                                                 });
 148                                     }
 149                                 });
 150                                         }
 151
 152                                         @Override
 153                                         public void onError(Throwable t) {
 154                                 GWT.log("", t);
 155                                                 app.setError(t);
 156                                 if (t instanceof RestException) {
 157                                     app.displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
 158                                 }
 159                                 else
 160                                     app.displayError("System error getting folder: " + t.getMessage());
 161                                         }
 162
 163                                         @Override
 164                                         protected void onUnauthorized(Response response) {
 165                                                 app.sessionExpired();
 166                                         }
 167                                 };
 168                                 getFolder.setHeader("X-Auth-Token", app.getToken());
 169                                 Scheduler.get().scheduleDeferred(getFolder);
 170             }
 171
 172             @Override
 173             public void onError(Throwable t) {
 174                 GWT.log("", t);
 175                                 app.setError(t);
 176                 if (t instanceof RestException) {
 177                     app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 178                 }
 179                 else
 180                     app.displayError("System error creating folder:" + t.getMessage());
 181             }
 182
 183                         @Override
 184                         protected void onUnauthorized(Response response) {
 185                                 app.sessionExpired();
 186                         }
 187         };
 188         createFolder.setHeader("X-Auth-Token", app.getToken());
 189         createFolder.setHeader("Accept", "*/*");
 190         createFolder.setHeader("Content-Length", "0");
 191         createFolder.setHeader("Content-Type", "application/folder");
 192         Scheduler.get().scheduleDeferred(createFolder);
 193     }
 194
 195     protected void untrashFiles(final Iterator<File> iter, final Command callback) {
 196         if (iter.hasNext()) {
 197             File file = iter.next();
 198             String path = "/" + Pithos.HOME_CONTAINER + "/" + file.getPath();
 199             PutRequest untrashFile = new PutRequest(app.getApiPath(), app.getUsername(), path) {
 200                 @Override
 201                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 202                     untrashFiles(iter, callback);
 203                 }
 204
 205                 @Override
 206                 public void onError(Throwable t) {
 207                     GWT.log("", t);
 208                                         app.setError(t);
 209                     if (t instanceof RestException) {
 210                         app.displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 211                     }
 212                     else
 213                         app.displayError("System error unable to copy file: "+t.getMessage());
 214                 }
 215
 216                                 @Override
 217                                 protected void onUnauthorized(Response response) {
 218                                         app.sessionExpired();
 219                                 }
 220             };
 221             untrashFile.setHeader("X-Auth-Token", app.getToken());
 222             untrashFile.setHeader("X-Move-From", URL.encodePathSegment(file.getUri()));
 223             Scheduler.get().scheduleDeferred(untrashFile);
 224         }
 225         else if (callback != null) {
 226             callback.execute();
 227         }
 228     }
 229
 230     protected void untrashSubfolders(final Iterator<Folder> iter, final Command callback) {
 231         if (iter.hasNext()) {
 232             final Folder f = iter.next();
 233             untrashFolder(f, new Command() {
 234
 235                                 @Override
 236                                 public void execute() {
 237                                         untrashSubfolders(iter, callback);
 238                                 }
 239                         });
 240         }
 241         else  {
 242                 if (callback != null)
 243                         callback.execute();
 244         }
 245     }
 246 }