code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/commands/EmptyTrashCommand.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
  39 import gr.grnet.pithos.web.client.Pithos;
  40 import gr.grnet.pithos.web.client.foldertree.File;
  41 import gr.grnet.pithos.web.client.foldertree.Folder;
  42 import gr.grnet.pithos.web.client.foldertree.Resource;
  43 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  44 import gr.grnet.pithos.web.client.rest.GetRequest;
  45 import gr.grnet.pithos.web.client.rest.RestException;
  46
  47 import com.google.gwt.core.client.GWT;
  48 import com.google.gwt.core.client.Scheduler;
  49 import com.google.gwt.http.client.Response;
  50 import com.google.gwt.http.client.URL;
  51 import com.google.gwt.user.client.Command;
  52 import com.google.gwt.user.client.ui.PopupPanel;
  53
  54
  55 /**
  56  * Command to empty trash bin.
  57  */
  58 public class EmptyTrashCommand implements Command{
  59         private PopupPanel containerPanel;
  60
  61     Pithos app;
  62
  63         public EmptyTrashCommand(Pithos _app, PopupPanel _containerPanel){
  64         app = _app;
  65                 containerPanel = _containerPanel;
  66         }
  67
  68         @Override
  69         public void execute() {
  70                 if (containerPanel != null)
  71                         containerPanel.hide();
  72
  73                 final Folder trash = app.getAccount().getTrash();
  74                 if (trash != null) {
  75                         Iterator<File> iter = trash.getFiles().iterator();
  76                         deleteFile(iter, new Command() {
  77
  78                                 @Override
  79                                 public void execute() {
  80                                         Iterator<Folder> iter2 = trash.getSubfolders().iterator();
  81                                         deleteSubfolder(iter2, new Command() {
  82
  83                                                 @Override
  84                                                 public void execute() {
  85                                                         app.updateTrash(true, new Command() {
  86
  87                                                                 @Override
  88                                                                 public void execute() {
  89                                                                         app.updateStatistics();
  90                                                                 }
  91                                                         });
  92                                                 }
  93                                         });
  94                                 }
  95                         });
  96                 }
  97         }
  98
  99         protected void deleteSubfolder(final Iterator<Folder> iter2, final Command callback) {
 100                 if (iter2.hasNext()) {
 101                         final Folder f = iter2.next();
 102                         GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, app.getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()), f) {
 103
 104                                 @Override
 105                                 public void onSuccess(final Folder _f) {
 106                                         Iterator<File> iter3 = _f.getFiles().iterator();
 107                                         deleteFile(iter3, new Command() {
 108
 109                                                 @Override
 110                                                 public void execute() {
 111                                                         Iterator<Folder> iter4 = _f.getSubfolders().iterator();
 112                                                         deleteSubfolder(iter4, new Command() {
 113
 114                                                                 @Override
 115                                                                 public void execute() {
 116                                                                         String path = _f.getUri();
 117                                                                         DeleteRequest deleteF = new DeleteRequest(app.getApiPath(), _f.getOwner(), path) {
 118
 119                                                                                 @Override
 120                                                                                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 121                                                                                         deleteSubfolder(iter2, callback);
 122                                                                                 }
 123
 124                                                                                 @Override
 125                                                                                 public void onError(Throwable t) {
 126                                                                                         GWT.log("", t);
 127                                                                                         if (t instanceof RestException) {
 128                                                                                                 app.displayError("Unable to delete file:" + ((RestException) t).getHttpStatusText());
 129                                                                                         }
 130                                                                                         else
 131                                                                                                 app.displayError("System error deleting file:" + t.getMessage());
 132                                                                                 }
 133
 134                                                                                 @Override
 135                                                                                 protected void onUnauthorized(Response response) {
 136                                                                                         app.sessionExpired();
 137                                                                                 }
 138                                                                         };
 139                                                                         deleteF.setHeader("X-Auth-Token", app.getToken());
 140                                                                         Scheduler.get().scheduleDeferred(deleteF);
 141                                                                 }
 142                                                         });
 143                                                 }
 144                                         });
 145                                 }
 146
 147                                 @Override
 148                                 public void onError(Throwable t) {
 149                         GWT.log("", t);
 150                         if (t instanceof RestException) {
 151                             app.displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
 152                         }
 153                         else
 154                                 app.displayError("System error getting folder: " + t.getMessage());
 155                                 }
 156
 157                                 @Override
 158                                 protected void onUnauthorized(Response response) {
 159                                         app.sessionExpired();
 160                                 }
 161                         };
 162                         getFolder.setHeader("X-Auth-Token", app.getToken());
 163                         Scheduler.get().scheduleDeferred(getFolder);
 164                 }
 165                 else {
 166                         if (callback != null)
 167                                 callback.execute();
 168                 }
 169         }
 170
 171         void deleteFile(final Iterator<File> iter, final Command callback) {
 172                 if (iter.hasNext()) {
 173                         File f = iter.next();
 174                         String path = f.getUri();
 175                         DeleteRequest deleteF = new DeleteRequest(app.getApiPath(), f.getOwner(), path) {
 176
 177                                 @Override
 178                                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 179                                         deleteFile(iter, callback);
 180                                 }
 181
 182                                 @Override
 183                                 public void onError(Throwable t) {
 184                                         GWT.log("", t);
 185                                         if (t instanceof RestException) {
 186                                                 app.displayError("Unable to delete file:" + ((RestException) t).getHttpStatusText());
 187                                         }
 188                                         else
 189                                                 app.displayError("System error deleting file:" + t.getMessage());
 190                                 }
 191
 192                                 @Override
 193                                 protected void onUnauthorized(Response response) {
 194                                         app.sessionExpired();
 195                                 }
 196                         };
 197                         deleteF.setHeader("X-Auth-Token", app.getToken());
 198                         Scheduler.get().scheduleDeferred(deleteF);
 199                 }
 200                 else {
 201                         if (callback != null)
 202                                 callback.execute();
 203                 }
 204         }
 205 }