Java tutorial
/*! * This program is free software; you can redistribute it and/or modify it under the * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software * Foundation. * * You should have received a copy of the GNU Lesser General Public License along with this * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html * or from the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Lesser General Public License for more details. * * Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved. */ package org.pentaho.mantle.client.commands; import com.google.gwt.core.client.GWT; import com.google.gwt.http.client.Request; import com.google.gwt.http.client.RequestBuilder; import com.google.gwt.http.client.RequestCallback; import com.google.gwt.http.client.RequestException; import com.google.gwt.http.client.Response; import com.google.gwt.user.client.ui.HTML; import org.pentaho.gwt.widgets.client.dialogs.IDialogCallback; import org.pentaho.gwt.widgets.client.dialogs.MessageDialogBox; import org.pentaho.gwt.widgets.client.dialogs.PromptDialogBox; import org.pentaho.gwt.widgets.client.filechooser.FileChooserDialog; import org.pentaho.gwt.widgets.client.filechooser.RepositoryFile; import org.pentaho.mantle.client.events.EventBusUtil; import org.pentaho.mantle.client.events.SolutionFileHandler; import org.pentaho.mantle.client.events.SolutionFolderActionEvent; import org.pentaho.mantle.client.messages.Messages; import org.pentaho.mantle.client.solutionbrowser.SolutionBrowserPanel; public class DeleteFolderCommand extends AbstractCommand { String moduleBaseURL = GWT.getModuleBaseURL(); String moduleName = GWT.getModuleName(); String contextURL = moduleBaseURL.substring(0, moduleBaseURL.lastIndexOf(moduleName)); RepositoryFile repositoryFile; public DeleteFolderCommand() { } public DeleteFolderCommand(RepositoryFile repositoryFile) { this.repositoryFile = repositoryFile; } private String solutionPath = null; public String getSolutionPath() { return solutionPath; } public void setSolutionPath(String solutionPath) { this.solutionPath = solutionPath; } protected void performOperation() { if (this.getSolutionPath() != null) { SolutionBrowserPanel sbp = SolutionBrowserPanel.getInstance(); sbp.getFile(this.getSolutionPath(), new SolutionFileHandler() { @Override public void handle(RepositoryFile repositoryFile) { DeleteFolderCommand.this.repositoryFile = repositoryFile; performOperation(true); } }); } else { performOperation(true); } } protected void performOperation(boolean feedback) { final SolutionFolderActionEvent event = new SolutionFolderActionEvent(); event.setAction(this.getClass().getName()); final String filesList = repositoryFile.getId(); final String folderName = repositoryFile.getTitle() == null ? repositoryFile.getName() : repositoryFile.getTitle(); final HTML messageTextBox = new HTML( Messages.getString("moveToTrashQuestionFolder", escapeHtmlEntities(folderName))); final PromptDialogBox folderDeleteWarningDialogBox = new PromptDialogBox(Messages.getString("moveToTrash"), Messages.getString("yesMoveToTrash"), Messages.getString("no"), true, true); folderDeleteWarningDialogBox.setContent(messageTextBox); final IDialogCallback callback = new IDialogCallback() { public void cancelPressed() { folderDeleteWarningDialogBox.hide(); } public void okPressed() { String deleteFilesURL = contextURL + "api/repo/files/delete"; //$NON-NLS-1$ RequestBuilder deleteFilesRequestBuilder = new RequestBuilder(RequestBuilder.PUT, deleteFilesURL); deleteFilesRequestBuilder.setHeader("If-Modified-Since", "01 Jan 1970 00:00:00 GMT"); deleteFilesRequestBuilder.setHeader("Content-Type", "text/plain"); //$NON-NLS-1$//$NON-NLS-2$ try { deleteFilesRequestBuilder.sendRequest(filesList, new RequestCallback() { @Override public void onError(Request request, Throwable exception) { MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$ Messages.getString("couldNotDeleteFolder"), //$NON-NLS-1$ false, false, true); dialogBox.center(); event.setMessage(Messages.getString("couldNotDeleteFolder")); EventBusUtil.EVENT_BUS.fireEvent(event); } @Override public void onResponseReceived(Request request, Response response) { if (response.getStatusCode() == 200) { new RefreshRepositoryCommand().execute(false); event.setMessage("Success"); FileChooserDialog.setIsDirty(Boolean.TRUE); setBrowseRepoDirty(Boolean.TRUE); EventBusUtil.EVENT_BUS.fireEvent(event); } else { MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$ Messages.getString("couldNotDeleteFolder"), //$NON-NLS-1$ false, false, true); dialogBox.center(); event.setMessage(Messages.getString("couldNotDeleteFolder")); EventBusUtil.EVENT_BUS.fireEvent(event); } } }); } catch (RequestException e) { MessageDialogBox dialogBox = new MessageDialogBox(Messages.getString("error"), //$NON-NLS-1$ Messages.getString("couldNotDeleteFolder"), //$NON-NLS-1$ false, false, true); dialogBox.center(); event.setMessage(Messages.getString("couldNotDeleteFolder")); EventBusUtil.EVENT_BUS.fireEvent(event); } } }; folderDeleteWarningDialogBox.setCallback(callback); folderDeleteWarningDialogBox.center(); } public static String escapeHtmlEntities(String text) { return text.replace("&", "&").replace("\"", """).replace("'", "'").replace("<", "<") .replace(">", ">"); } private static native void setBrowseRepoDirty(boolean isDirty) /*-{ $wnd.mantle_isBrowseRepoDirty=isDirty; }-*/; }