Synnefo » Pithos Web Client

/*

 * Copyright 2011-2012 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 gr.grnet.pithos.web.client.FilePermissionsDialog;

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

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

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

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

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

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.HeadRequest;

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

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

import java.util.List;

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

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

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

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

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

/**

 * The command that displays the appropriate Properties dialog, according to the

 * selected object in the application.

 *

 */

public class PropertiesCommand implements Command {

        public static final int PROPERTIES = 0;

        public static final int PERMISSIONS = 1;

        public static final int VERSIONS = 2;

        private PopupPanel containerPanel;

        private int tabToShow = 0;

    private Object resource;

    Pithos app;

        /**

         * @param _containerPanel

         * @param _tab the tab to switch to

         */

        public PropertiesCommand(Pithos _app, PopupPanel _containerPanel, Object _resource, int _tab) {

                containerPanel = _containerPanel;

                tabToShow = _tab;

        resource = _resource;

        app = _app;

        }

        @Override

        public void execute() {

        if (containerPanel != null)

                    containerPanel.hide();

        if (resource instanceof Folder) {

            final Folder folder = (Folder) resource;

            switch (tabToShow) {

                                case PROPERTIES:

                                        FolderPropertiesDialog dlg = new FolderPropertiesDialog(app, false, folder);

                                        dlg.center();

                                        break;

                                case PERMISSIONS:

                                        final FolderPermissionsDialog dlg1 = new FolderPermissionsDialog(app, folder);

                                        scheduleFolderHeadCommand(folder, dlg1);

                                        break;

                                default:

                                        break;

                        }

        }

        else if (resource instanceof List) {

            @SuppressWarnings("unchecked")

                        List<File> files = (List<File>) resource;

            if (files.size() > 1) {

                FilesPropertiesDialog dlg = new FilesPropertiesDialog(app, files);

                dlg.center();

            }

            else {

                                File f = files.get(0);

                                PopupPanel dlg = null;

                    switch (tabToShow) {

                                        case PROPERTIES:

                                dlg = new FilePropertiesDialog(app, f);

                                scheduleFileHeadCommand(f, dlg);

                                                break;

                                        case PERMISSIONS:

                                dlg = new FilePermissionsDialog(app, f);

                                scheduleFileHeadCommand(f, dlg);

                                                break;

                                        case VERSIONS:

                                FileVersionsDialog dlg2 = new FileVersionsDialog(app, files.get(0));

                                dlg2.center();

                                                break;

                                        default:

                                                break;

                                }

            }

        }

        }

        private void scheduleFileHeadCommand(File f, final PopupPanel dlg) {

                HeadRequest<File> headFile = new HeadRequest<File>(File.class, app.getApiPath(), f.getOwner(), f.getUri(), f) {

                        @Override

                        public void onSuccess(File _result) {

                                dlg.center();

                        }

                        @Override

                        public void onError(Throwable t) {

                        GWT.log("Error heading file", t);

                                app.setError(t);

                        if (t instanceof RestException)

                            app.displayError("Error heading file: " + ((RestException) t).getHttpStatusText());

                        else

                            app.displayError("System error heading file: " + t.getMessage());

                        }

                        @Override

                        protected void onUnauthorized(Response response) {

                                app.sessionExpired();

                        }

                };

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

                Scheduler.get().scheduleDeferred(headFile);

        }

        void scheduleFolderHeadCommand(final Folder folder, final FolderPermissionsDialog dlg) {

                HeadRequest<Folder> headFolder = new HeadRequest<Folder>(Folder.class, app.getApiPath(), folder.getOwner(), folder.getUri(), folder) {

                        @Override

                        public void onSuccess(Folder _result) {

                                dlg.center();

                        }

                        @Override

                        public void onError(Throwable t) {

                        if (t instanceof RestException) {

                                if (((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND) {

                        final String path = folder.getUri();

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

                            @Override

                            public void onSuccess(Resource _result) {

                                    scheduleFolderHeadCommand(folder, dlg);

                            }

                            @Override

                            public void onError(Throwable _t) {

                                GWT.log("", _t);

                                                        app.setError(_t);

                                if(_t instanceof RestException){

                                    app.displayError("Unable to create folder: " + ((RestException) _t).getHttpStatusText());

                                }

                                else

                                    app.displayError("System error creating folder: " + _t.getMessage());

                            }

                                            @Override

                                            protected void onUnauthorized(Response response) {

                                                    app.sessionExpired();

                                            }

                        };

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

                        newFolder.setHeader("Content-Type", "application/folder");

                        newFolder.setHeader("Accept", "*/*");

                        newFolder.setHeader("Content-Length", "0");

                        Scheduler.get().scheduleDeferred(newFolder);

                                }

                                else

                                        app.displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());

                        }

                        else

                            app.displayError("System error heading folder: " + t.getMessage());

                        GWT.log("Error heading folder", t);

                                app.setError(t);

                        }

                        @Override

                        protected void onUnauthorized(Response response) {

                                app.sessionExpired();

                        }

                };

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

                Scheduler.get().scheduleDeferred(headFolder);

        }

}