code.grnet.gr Git - pithos/blob - web_client/src/gr/grnet/pithos/web/client/commands/ToTrashCommand.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 com.google.gwt.core.client.Scheduler;
  38 import gr.grnet.pithos.web.client.GSS;
  39 import gr.grnet.pithos.web.client.foldertree.File;
  40 import gr.grnet.pithos.web.client.foldertree.Folder;
  41 import gr.grnet.pithos.web.client.foldertree.Resource;
  42 import gr.grnet.pithos.web.client.rest.MultiplePostCommand;
  43 import gr.grnet.pithos.web.client.rest.PostCommand;
  44 import gr.grnet.pithos.web.client.rest.PostRequest;
  45 import gr.grnet.pithos.web.client.rest.PutRequest;
  46 import gr.grnet.pithos.web.client.rest.RestException;
  47 import gr.grnet.pithos.web.client.rest.resource.FileResource;
  48 import gr.grnet.pithos.web.client.rest.resource.FolderResource;
  49 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;
  50
  51 import java.util.ArrayList;
  52 import java.util.Iterator;
  53 import java.util.List;
  54
  55
  56 import com.google.gwt.core.client.GWT;
  57 import com.google.gwt.user.client.Command;
  58 import com.google.gwt.user.client.DeferredCommand;
  59 import com.google.gwt.user.client.ui.PopupPanel;
  60
  61 /**
  62  *
  63  * Move file or folder to trash.
  64  *
  65  *
  66  */
  67 public class ToTrashCommand implements Command{
  68         private PopupPanel containerPanel;
  69     private GSS app;
  70     private Object resource;
  71
  72         public ToTrashCommand(GSS _app, PopupPanel _containerPanel, Object _resource){
  73                 containerPanel = _containerPanel;
  74         app = _app;
  75         resource = _resource;
  76         }
  77
  78         @Override
  79         public void execute() {
  80                 containerPanel.hide();
  81         if (resource instanceof List) {
  82             Iterator<File> iter = ((List<File>) resource).iterator();
  83             trashFiles(iter, new Command() {
  84                 @Override
  85                 public void execute() {
  86                     app.get().updateFolder(((List<File>) resource).get(0).getParent());
  87                 }
  88             });
  89         }
  90         else if (resource instanceof Folder) {
  91             final Folder toBeTrashed = (Folder) resource;
  92             trashFolder(toBeTrashed, new Command() {
  93                 @Override
  94                 public void execute() {
  95                     app.updateFolder(toBeTrashed.getParent());
  96                 }
  97             });
  98
  99         }
 100         }
 101
 102     private void trashFolder(final Folder f, final Command callback) {
 103         String path = app.getApiPath() + app.getUsername() + f.getUri() + "?update=";
 104         PostRequest trashFolder = new PostRequest(path) {
 105             @Override
 106             public void onSuccess(Resource result) {
 107                 Iterator<File> iter = f.getFiles().iterator();
 108                 trashFiles(iter, new Command() {
 109                     @Override
 110                     public void execute() {
 111                         Iterator<Folder> iterf = f.getSubfolders().iterator();
 112                         trashSubfolders(iterf, new Command() {
 113                             @Override
 114                             public void execute() {
 115                                 callback.execute();
 116                             }
 117                         });
 118                     }
 119                 });
 120             }
 121
 122             @Override
 123             public void onError(Throwable t) {
 124                 GWT.log("", t);
 125                 if (t instanceof RestException) {
 126                     app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 127                 }
 128                 else
 129                     app.displayError("System error creating folder:" + t.getMessage());
 130             }
 131         };
 132         trashFolder.setHeader("X-Auth-Token", app.getToken());
 133         trashFolder.setHeader("X-Object-Meta-Trash", "true");
 134         Scheduler.get().scheduleDeferred(trashFolder);
 135     }
 136
 137     private void trashFiles(final Iterator<File> iter, final Command callback) {
 138         if (iter.hasNext()) {
 139             File file = iter.next();
 140             String path = app.getApiPath() + app.getUsername() + file.getUri() + "?update=";
 141             PostRequest trashFile = new PostRequest(path) {
 142                 @Override
 143                 public void onSuccess(Resource result) {
 144                     trashFiles(iter, callback);
 145                 }
 146
 147                 @Override
 148                 public void onError(Throwable t) {
 149                     GWT.log("", t);
 150                     if (t instanceof RestException) {
 151                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 152                     }
 153                     else
 154                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 155                 }
 156             };
 157             trashFile.setHeader("X-Auth-Token", app.getToken());
 158             trashFile.setHeader("X-Object-Meta-Trash", "true");
 159             Scheduler.get().scheduleDeferred(trashFile);
 160         }
 161         else  if (callback != null) {
 162             callback.execute();
 163         }
 164     }
 165
 166     private void trashSubfolders(final Iterator<Folder> iter, final Command callback) {
 167         if (iter.hasNext()) {
 168             final Folder f = iter.next();
 169             trashFolder(f, callback);
 170         }
 171         else  if (callback != null) {
 172             callback.execute();
 173         }
 174     }
 175 }