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                 copyFolder(tobeCopied, folder.getUri(), new Command() {
  85                     @Override
  86                     public void execute() {
  87                         app.getClipboard().clear();
  88                         app.deleteFolder(tobeCopied);
  89                         app.updateFolder(folder);
  90                     }
  91                 });
  92
  93             }
  94         }
  95         else {
  96             List<File> tobeCopied = (List<File>) clipboardItem;
  97             Iterator<File> iter = tobeCopied.iterator();
  98             if (operation == Clipboard.COPY) {
  99                 copyFiles(iter, folder.getUri(), new Command() {
 100                     @Override
 101                     public void execute() {
 102                         app.getClipboard().clear();
 103                         app.updateFolder(folder);
 104                     }
 105                 });
 106             }
 107             else {
 108                 moveFiles(iter, new Command() {
 109                     @Override
 110                     public void execute() {
 111                         app.getClipboard().clear();
 112                         app.updateFolder(folder);
 113                     }
 114                 });
 115             }
 116         }
 117         }
 118
 119     private void moveFiles(final Iterator<File> iter, final Command callback) {
 120         if (iter.hasNext()) {
 121             File file = iter.next();
 122             String path = app.getApiPath() + app.getUsername() + folder.getUri() + "/" + file.getName();
 123             PutRequest copyFile = new PutRequest(path) {
 124                 @Override
 125                 public void onSuccess(Resource result) {
 126                     moveFiles(iter, callback);
 127                 }
 128
 129                 @Override
 130                 public void onError(Throwable t) {
 131                     GWT.log("", t);
 132                     if (t instanceof RestException) {
 133                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 134                     }
 135                     else
 136                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 137                 }
 138             };
 139             copyFile.setHeader("X-Auth-Token", app.getToken());
 140             copyFile.setHeader("X-Move-From", file.getUri());
 141             Scheduler.get().scheduleDeferred(copyFile);
 142         }
 143         else if (callback != null) {
 144             callback.execute();
 145         }
 146     }
 147
 148     private void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
 149         if (iter.hasNext()) {
 150             File file = iter.next();
 151             String path = app.getApiPath() + app.getUsername() + targetUri + "/" + file.getName();
 152             PutRequest copyFile = new PutRequest(path) {
 153                 @Override
 154                 public void onSuccess(Resource result) {
 155                     copyFiles(iter, targetUri, callback);
 156                 }
 157
 158                 @Override
 159                 public void onError(Throwable t) {
 160                     GWT.log("", t);
 161                     if (t instanceof RestException) {
 162                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 163                     }
 164                     else
 165                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 166                 }
 167             };
 168             copyFile.setHeader("X-Auth-Token", app.getToken());
 169             copyFile.setHeader("X-Copy-From", file.getUri());
 170             Scheduler.get().scheduleDeferred(copyFile);
 171         }
 172         else  if (callback != null) {
 173             callback.execute();
 174         }
 175     }
 176
 177     private void copyFolder(final Folder f, final String targetUri, final Command callback) {
 178         String path = app.getApiPath() + app.getUsername() + targetUri + "/" + f.getName();
 179         PutRequest createFolder = new PutRequest(path) {
 180             @Override
 181             public void onSuccess(Resource result) {
 182                 Iterator<File> iter = f.getFiles().iterator();
 183                 copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
 184                     @Override
 185                     public void execute() {
 186                         Iterator<Folder> iterf = f.getSubfolders().iterator();
 187                         copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
 188                             @Override
 189                             public void execute() {
 190                                 callback.execute();
 191                             }
 192                         });
 193                     }
 194                 });
 195             }
 196
 197             @Override
 198             public void onError(Throwable t) {
 199                 GWT.log("", t);
 200                 if (t instanceof RestException) {
 201                     app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 202                 }
 203                 else
 204                     app.displayError("System error creating folder:" + t.getMessage());
 205             }
 206         };
 207         createFolder.setHeader("X-Auth-Token", app.getToken());
 208         createFolder.setHeader("Accept", "*/*");
 209         createFolder.setHeader("Content-Length", "0");
 210         createFolder.setHeader("Content-Type", "application/folder");
 211         Scheduler.get().scheduleDeferred(createFolder);
 212     }
 213
 214     private void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
 215         if (iter.hasNext()) {
 216             final Folder f = iter.next();
 217             copyFolder(f, targetUri, callback);
 218         }
 219         else  if (callback != null) {
 220             callback.execute();
 221         }
 222     }
 223 }