code.grnet.gr Git - pithos-web-client/blob - 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         if (containerPanel != null)
  68                 containerPanel.hide();
  69
  70         Object clipboardItem = app.getClipboard().getItem();
  71         if (clipboardItem == null)
  72             return;
  73         int operation = app.getClipboard().getOperation();
  74         if (clipboardItem instanceof Folder) {
  75             final Folder tobeCopied = (Folder) clipboardItem;
  76             if (operation == Clipboard.COPY) {
  77                 copyFolder(tobeCopied, folder.getUri(), new Command() {
  78                     @Override
  79                     public void execute() {
  80                         app.getClipboard().clear();
  81                         app.updateFolder(folder);
  82                     }
  83                 });
  84             }
  85             else {
  86                 copyFolder(tobeCopied, folder.getUri(), new Command() {
  87                     @Override
  88                     public void execute() {
  89                         app.getClipboard().clear();
  90                         app.deleteFolder(tobeCopied);
  91                         app.updateFolder(folder);
  92                     }
  93                 });
  94
  95             }
  96         }
  97         else {
  98             List<File> tobeCopied = (List<File>) clipboardItem;
  99             Iterator<File> iter = tobeCopied.iterator();
 100             if (operation == Clipboard.COPY) {
 101                 copyFiles(iter, folder.getUri(), new Command() {
 102                     @Override
 103                     public void execute() {
 104                         app.getClipboard().clear();
 105                         app.updateFolder(folder);
 106                     }
 107                 });
 108             }
 109             else {
 110                 moveFiles(iter, new Command() {
 111                     @Override
 112                     public void execute() {
 113                         app.getClipboard().clear();
 114                         app.updateFolder(folder);
 115                     }
 116                 });
 117             }
 118         }
 119         }
 120
 121     private void moveFiles(final Iterator<File> iter, final Command callback) {
 122         if (iter.hasNext()) {
 123             File file = iter.next();
 124             String path = app.getApiPath() + app.getUsername() + folder.getUri() + "/" + file.getName();
 125             PutRequest copyFile = new PutRequest(path) {
 126                 @Override
 127                 public void onSuccess(Resource result) {
 128                     moveFiles(iter, callback);
 129                 }
 130
 131                 @Override
 132                 public void onError(Throwable t) {
 133                     GWT.log("", t);
 134                     if (t instanceof RestException) {
 135                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 136                     }
 137                     else
 138                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 139                 }
 140             };
 141             copyFile.setHeader("X-Auth-Token", app.getToken());
 142             copyFile.setHeader("X-Move-From", file.getUri());
 143             Scheduler.get().scheduleDeferred(copyFile);
 144         }
 145         else if (callback != null) {
 146             callback.execute();
 147         }
 148     }
 149
 150     private void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
 151         if (iter.hasNext()) {
 152             File file = iter.next();
 153             String path = app.getApiPath() + app.getUsername() + targetUri + "/" + file.getName();
 154             PutRequest copyFile = new PutRequest(path) {
 155                 @Override
 156                 public void onSuccess(Resource result) {
 157                     copyFiles(iter, targetUri, callback);
 158                 }
 159
 160                 @Override
 161                 public void onError(Throwable t) {
 162                     GWT.log("", t);
 163                     if (t instanceof RestException) {
 164                         GSS.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 165                     }
 166                     else
 167                         GSS.get().displayError("System error unable to copy file: "+t.getMessage());
 168                 }
 169             };
 170             copyFile.setHeader("X-Auth-Token", app.getToken());
 171             copyFile.setHeader("X-Copy-From", file.getUri());
 172             Scheduler.get().scheduleDeferred(copyFile);
 173         }
 174         else  if (callback != null) {
 175             callback.execute();
 176         }
 177     }
 178
 179     private void copyFolder(final Folder f, final String targetUri, final Command callback) {
 180         String path = app.getApiPath() + app.getUsername() + targetUri + "/" + f.getName();
 181         PutRequest createFolder = new PutRequest(path) {
 182             @Override
 183             public void onSuccess(Resource result) {
 184                 Iterator<File> iter = f.getFiles().iterator();
 185                 copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
 186                     @Override
 187                     public void execute() {
 188                         Iterator<Folder> iterf = f.getSubfolders().iterator();
 189                         copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
 190                             @Override
 191                             public void execute() {
 192                                 callback.execute();
 193                             }
 194                         });
 195                     }
 196                 });
 197             }
 198
 199             @Override
 200             public void onError(Throwable t) {
 201                 GWT.log("", t);
 202                 if (t instanceof RestException) {
 203                     app.displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 204                 }
 205                 else
 206                     app.displayError("System error creating folder:" + t.getMessage());
 207             }
 208         };
 209         createFolder.setHeader("X-Auth-Token", app.getToken());
 210         createFolder.setHeader("Accept", "*/*");
 211         createFolder.setHeader("Content-Length", "0");
 212         createFolder.setHeader("Content-Type", "application/folder");
 213         Scheduler.get().scheduleDeferred(createFolder);
 214     }
 215
 216     private void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
 217         if (iter.hasNext()) {
 218             final Folder f = iter.next();
 219             copyFolder(f, targetUri, callback);
 220         }
 221         else  if (callback != null) {
 222             callback.execute();
 223         }
 224     }
 225 }