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

   1 /*
   2  * Copyright 2011-2012 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, new Command() {
  85
  86                                                 @Override
  87                                                 public void execute() {
  88                                                         app.updateFolder(app.getAccount().getPithos(), false, null, true);
  89                                                 }
  90                                         }, true);
  91                 }
  92             });
  93         }
  94         else if (resource instanceof Folder) {
  95             final Folder toBeUnTrashed = (Folder) resource;
  96             untrashFolder(toBeUnTrashed, new Command() {
  97                 @Override
  98                 public void execute() {
  99                     app.updateFolder(toBeUnTrashed.getParent(), true, new Command() {
 100
 101                                                 @Override
 102                                                 public void execute() {
 103                                                         app.updateFolder(app.getAccount().getPithos(), false, null, true);
 104                                                 }
 105                                         }, true);
 106                 }
 107             });
 108
 109         }
 110         }
 111
 112     private void untrashFolder(final Folder f, final Command callback) {
 113         String path = "/" + Pithos.HOME_CONTAINER + "/" + f.getPrefix();
 114         app.copyFolder(f, app.getUsername(), path, true, callback);
 115     }
 116
 117     protected void untrashFiles(final Iterator<File> iter, final Command callback) {
 118         if (iter.hasNext()) {
 119             File file = iter.next();
 120             String path = "/" + Pithos.HOME_CONTAINER + "/" + file.getPath();
 121             PutRequest untrashFile = new PutRequest(app.getApiPath(), app.getUsername(), path) {
 122                 @Override
 123                 public void onSuccess(Resource result) {
 124                     untrashFiles(iter, callback);
 125                 }
 126
 127                 @Override
 128                 public void onError(Throwable t) {
 129                     GWT.log("", t);
 130                                         app.setError(t);
 131                     if (t instanceof RestException) {
 132                         app.displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 133                     }
 134                     else
 135                         app.displayError("System error unable to copy file: "+t.getMessage());
 136                 }
 137
 138                                 @Override
 139                                 protected void onUnauthorized(Response response) {
 140                                         app.sessionExpired();
 141                                 }
 142             };
 143             untrashFile.setHeader("X-Auth-Token", app.getToken());
 144             untrashFile.setHeader("X-Move-From", URL.encodePathSegment(file.getUri()));
 145             untrashFile.setHeader("Content-Type", file.getContentType());
 146
 147             Scheduler.get().scheduleDeferred(untrashFile);
 148         }
 149         else if (callback != null) {
 150             callback.execute();
 151         }
 152     }
 153
 154     protected void untrashSubfolders(final Iterator<Folder> iter, final Command callback) {
 155         if (iter.hasNext()) {
 156             final Folder f = iter.next();
 157             untrashFolder(f, new Command() {
 158
 159                                 @Override
 160                                 public void execute() {
 161                                         untrashSubfolders(iter, callback);
 162                                 }
 163                         });
 164         }
 165         else  {
 166                 if (callback != null)
 167                         callback.execute();
 168         }
 169     }
 170 }