code.grnet.gr Git - pithos/blob - web_client/src/gr/grnet/pithos/web/client/commands/PasteCommand.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.Clipboard;
  39 import gr.grnet.pithos.web.client.GSS;
  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.PutRequest;
  44 import gr.grnet.pithos.web.client.rest.RestException;
  45
  46 import java.util.Iterator;
  47 import java.util.List;
  48
  49 import com.google.gwt.core.client.GWT;
  50 import com.google.gwt.user.client.Command;
  51 import com.google.gwt.user.client.ui.PopupPanel;
  52
  53 public class PasteCommand implements Command {
  54
  55     private GSS app;
  56         private PopupPanel containerPanel;
  57     private Folder folder;
  58
  59         public PasteCommand(GSS _app, PopupPanel _containerPanel, Folder _folder) {
  60         app = _app;
  61                 containerPanel = _containerPanel;
  62         folder = _folder;
  63         }
  64
  65         @Override
  66         public void execute() {
  67                 containerPanel.hide();
  68         Object clipboardItem = app.getClipboard().getItem();
  69         if (clipboardItem == null)
  70             return;
  71         int operation = app.getClipboard().getOperation();
  72         if (clipboardItem instanceof Folder) {
  73             final Folder tobeCopied = (Folder) clipboardItem;
  74             if (operation == Clipboard.COPY) {
  75                 copyFolder(tobeCopied, folder.getUri(), new Command() {
  76                     @Override
  77                     public void execute() {
  78                         app.getClipboard().clear();
  79                         app.updateFolder(folder);
  80                     }
  81                 });
  82             }
  83             else {
  84
  85             }
  86         }
  87         else {
  88             List<File> tobeCopied = (List<File>) clipboardItem;
  89             Iterator<File> iter = tobeCopied.iterator();
  90             if (operation == Clipboard.COPY) {
  91                 copyFiles(iter, folder.getUri(), new Command() {
  92                     @Override
  93                     public void execute() {
  94                         app.getClipboard().clear();
  95                         app.updateFolder(folder);
  96                     }
  97                 });
  98             }
  99             else {
 100                 moveFiles(iter, new Command() {
 101                     @Override
 102                     public void execute() {
 103                         app.getClipboard().clear();
 104                         app.updateFolder(folder);
 105                     }
 106                 });
 107             }
 108         }
 109         }
 110
 111     private void moveFiles(final Iterator<File> iter, final Command callback) {
 112         if (iter.hasNext()) {
 113             File file = iter.next();
 114             String path = app.getApiPath() + app.getUsername() + folder.getUri() + "/" + file.getName();
 115             PutRequest copyFile = new PutRequest(path) {
 116                 @Override
 117                 public void onSuccess(Resource result) {
 118                     moveFiles(iter, callback);
 119                 }
 120
 121                 @Override
 122                 public void onError(Throwable t) {
 123                     GWT.log("", t);
 124                     if (t instanceof RestException) {
 125                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 126                     }
 127                     else
 128                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 129                 }
 130             };
 131             copyFile.setHeader("X-Auth-Token", app.getToken());
 132             copyFile.setHeader("X-Move-From", file.getUri());
 133             Scheduler.get().scheduleDeferred(copyFile);
 134         }
 135         else if (callback != null) {
 136             callback.execute();
 137         }
 138     }
 139
 140     private void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
 141         if (iter.hasNext()) {
 142             File file = iter.next();
 143             String path = app.getApiPath() + app.getUsername() + targetUri + "/" + file.getName();
 144             PutRequest copyFile = new PutRequest(path) {
 145                 @Override
 146                 public void onSuccess(Resource result) {
 147                     copyFiles(iter, targetUri, callback);
 148                 }
 149
 150                 @Override
 151                 public void onError(Throwable t) {
 152                     GWT.log("", t);
 153                     if (t instanceof RestException) {
 154                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 155                     }
 156                     else
 157                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 158                 }
 159             };
 160             copyFile.setHeader("X-Auth-Token", app.getToken());
 161             copyFile.setHeader("X-Copy-From", file.getUri());
 162             Scheduler.get().scheduleDeferred(copyFile);
 163         }
 164         else  if (callback != null) {
 165             callback.execute();
 166         }
 167     }
 168
 169     private void copyFolder(final Folder f, final String targetUri, final Command callback) {
 170         String path = app.getApiPath() + app.getUsername() + targetUri + "/" + f.getName();
 171         PutRequest createFolder = new PutRequest(path) {
 172             @Override
 173             public void onSuccess(Resource result) {
 174                 Iterator<File> iter = f.getFiles().iterator();
 175                 copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
 176                     @Override
 177                     public void execute() {
 178                         Iterator<Folder> iterf = f.getSubfolders().iterator();
 179                         copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
 180                             @Override
 181                             public void execute() {
 182                                 callback.execute();
 183                             }
 184                         });
 185                     }
 186                 });
 187             }
 188
 189             @Override
 190             public void onError(Throwable t) {
 191                 GWT.log("", t);
 192                 if (t instanceof RestException) {
 193                     app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 194                 }
 195                 else
 196                     app.displayError("System error creating folder:" + t.getMessage());
 197             }
 198         };
 199         createFolder.setHeader("X-Auth-Token", app.getToken());
 200         createFolder.setHeader("Accept", "*/*");
 201         createFolder.setHeader("Content-Length", "0");
 202         createFolder.setHeader("Content-Type", "application/folder");
 203         Scheduler.get().scheduleDeferred(createFolder);
 204     }
 205
 206     private void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
 207         if (iter.hasNext()) {
 208             final Folder f = iter.next();
 209             copyFolder(f, targetUri, callback);
 210         }
 211         else  if (callback != null) {
 212             callback.execute();
 213         }
 214     }
 215 }