Synnefo » Pithos Web Client

/*

 * Copyright 2011 GRNET S.A. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or

 * without modification, are permitted provided that the following

 * conditions are met:

 *

 *   1. Redistributions of source code must retain the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer.

 *

 *   2. Redistributions in binary form must reproduce the above

 *      copyright notice, this list of conditions and the following

 *      disclaimer in the documentation and/or other materials

 *      provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF

 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * The views and conclusions contained in the software and

 * documentation are those of the authors and should not be

 * interpreted as representing official policies, either expressed

 * or implied, of GRNET S.A.

 */

package gr.grnet.pithos.web.client.commands;

import com.google.gwt.core.client.Scheduler;

import gr.grnet.pithos.web.client.Clipboard;

import gr.grnet.pithos.web.client.Pithos;

import gr.grnet.pithos.web.client.foldertree.File;

import gr.grnet.pithos.web.client.foldertree.Folder;

import gr.grnet.pithos.web.client.foldertree.Resource;

import gr.grnet.pithos.web.client.rest.PutRequest;

import gr.grnet.pithos.web.client.rest.RestException;

import java.util.Iterator;

import java.util.List;

import com.google.gwt.core.client.GWT;

import com.google.gwt.http.client.Response;

import com.google.gwt.user.client.Command;

import com.google.gwt.user.client.ui.PopupPanel;

public class PasteCommand implements Command {

        protected Pithos app;

        private PopupPanel containerPanel;

        protected Folder folder;

        public PasteCommand(Pithos _app, PopupPanel _containerPanel, Folder _folder) {

        app = _app;

                containerPanel = _containerPanel;

        folder = _folder;

        }

        @Override

        public void execute() {

        if (containerPanel != null)

                    containerPanel.hide();

        Object clipboardItem = app.getClipboard().getItem();

        if (clipboardItem == null)

            return;

        int operation = app.getClipboard().getOperation();

        if (clipboardItem instanceof Folder) {

            final Folder tobeCopied = (Folder) clipboardItem;

            if (operation == Clipboard.COPY) {

                app.copyFolder(tobeCopied, folder.getOwner(), folder.getUri(), new Command() {

                    @Override

                    public void execute() {

                        app.getClipboard().clear();

                        app.updateFolder(folder, true, new Command() {

                                                        @Override

                                                        public void execute() {

                                                                app.updateStatistics();

                                                        }

                                                });

                    }

                });

            }

            else {

                app.copyFolder(tobeCopied, folder.getOwner(), folder.getUri(), new Command() {

                    @Override

                    public void execute() {

                        app.getClipboard().clear();

                        app.deleteFolder(tobeCopied);

                        app.updateFolder(folder, true, null);

                    }

                });

            }

        }

        else {

            @SuppressWarnings("unchecked")

                        List<File> tobeCopied = (List<File>) clipboardItem;

            Iterator<File> iter = tobeCopied.iterator();

            if (operation == Clipboard.COPY) {

                app.copyFiles(iter, folder.getOwner(), folder.getUri(), new Command() {

                    @Override

                    public void execute() {

                        app.getClipboard().clear();

                        app.updateFolder(folder, true, new Command() {

                                                        @Override

                                                        public void execute() {

                                                                app.updateStatistics();

                                                        }

                                                });

                    }

                });

            }

            else {

                moveFiles(iter, new Command() {

                    @Override

                    public void execute() {

                        app.getClipboard().clear();

                        app.updateFolder(folder, true, null);

                    }

                });

            }

        }

        }

        protected void moveFiles(final Iterator<File> iter, final Command callback) {

        if (iter.hasNext()) {

            File file = iter.next();

            String path = folder.getUri() + "/" + file.getName();

            PutRequest copyFile = new PutRequest(app.getApiPath(), folder.getOwner(), path) {

                @Override

                public void onSuccess(@SuppressWarnings("unused") Resource result) {

                    moveFiles(iter, callback);

                }

                @Override

                public void onError(Throwable t) {

                    GWT.log("", t);

                    if (t instanceof RestException) {

                        app.displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());

                    }

                    else

                        app.displayError("System error unable to copy file: "+t.getMessage());

                }

                                @Override

                                protected void onUnauthorized(Response response) {

                                        app.sessionExpired();

                                }

            };

            copyFile.setHeader("X-Auth-Token", app.getToken());

            copyFile.setHeader("X-Move-From", file.getUri());

            copyFile.setHeader("Content-Type", file.getContentType());

            Scheduler.get().scheduleDeferred(copyFile);

        }

        else if (callback != null) {

            callback.execute();

        }

    }

}