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/*******************************************************************************
* Copyright (c) 2004, 2007 Mylyn project committers and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package org.eclipse.mylyn.internal.tasks.ui.wizards;
import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.Date;
import java.util.Locale;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.Wizard;
import org.eclipse.mylyn.commons.core.StatusHandler;
import org.eclipse.mylyn.context.core.ContextCore;
import org.eclipse.mylyn.context.core.IInteractionContextManager;
import org.eclipse.mylyn.internal.tasks.core.ITasksCoreConstants;
import org.eclipse.mylyn.internal.tasks.ui.TasksUiPlugin;
import org.eclipse.mylyn.internal.tasks.ui.util.TaskDataExportOperation;
import org.eclipse.mylyn.tasks.core.AbstractTask;
import org.eclipse.mylyn.tasks.ui.TasksUi;
import org.eclipse.ui.IExportWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IProgressService;
/**
* Wizard for exporting tasklist data files to the file system. This wizard uses a single page: TaskDataExportWizardPage
*
* @author Wesley Coelho
* @author Mik Kersten
*/
public class TaskDataExportWizard extends Wizard implements IExportWizard {
/**
* The name of the dialog store's section associated with the task data export wizard
*/
private final static String SETTINGS_SECTION = "org.eclipse.mylyn.tasklist.ui.exportWizard";
public final static String ZIP_FILE_PREFIX = "mylyndata";
private final static String ZIP_FILE_EXTENSION = ".zip";
private final static String WINDOW_TITLE = "Export";
private TaskDataExportWizardPage exportPage = null;
public static String getZipFileName() {
String fomratString = "yyyy-MM-dd";
SimpleDateFormat format = new SimpleDateFormat(fomratString, Locale.ENGLISH);
String date = format.format(new Date());
return ZIP_FILE_PREFIX + "-" + date + ZIP_FILE_EXTENSION;
}
public TaskDataExportWizard() {
IDialogSettings masterSettings = TasksUiPlugin.getDefault().getDialogSettings();
setDialogSettings(getSettingsSection(masterSettings));
setNeedsProgressMonitor(true);
setWindowTitle(WINDOW_TITLE);
}
/**
* Finds or creates a dialog settings section that is used to make the dialog control settings persistent
*/
public IDialogSettings getSettingsSection(IDialogSettings master) {
IDialogSettings settings = master.getSection(SETTINGS_SECTION);
if (settings == null) {
settings = master.addNewSection(SETTINGS_SECTION);
}
return settings;
}
@Override
public void addPages() {
exportPage = new TaskDataExportWizardPage();
exportPage.setWizard(this);
addPage(exportPage);
}
public void init(IWorkbench workbench, IStructuredSelection selection) {
// no initialization needed
}
@Override
public boolean canFinish() {
return exportPage.isPageComplete();
}
/**
* Called when the user clicks finish. Saves the task data. Waits until all overwrite decisions have been made
* before starting to save files. If any overwrite is canceled, no files are saved and the user must adjust the
* dialog.
*/
@Override
public boolean performFinish() {
boolean overwrite = exportPage.overwrite();
boolean zip = exportPage.zip();
Collection<AbstractTask> taskContextsToExport = TasksUi.getTaskListManager().getTaskList().getAllTasks();
// Get file paths to check for existence
String destDir = exportPage.getDestinationDirectory();
final File destDirFile = new File(destDir);
if (!destDirFile.exists() || !destDirFile.isDirectory()) {
// This should never happen
StatusHandler.fail(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN,
"Could not export data because specified location does not exist or is not a folder",
new Exception()));
return false;
}
final File destTaskListFile = new File(destDir + File.separator + ITasksCoreConstants.DEFAULT_TASK_LIST_FILE);
final File destActivationHistoryFile = new File(destDir + File.separator
+ IInteractionContextManager.CONTEXT_HISTORY_FILE_NAME
+ IInteractionContextManager.CONTEXT_FILE_EXTENSION);
final File destZipFile = new File(destDir + File.separator + getZipFileName());
// Prompt the user to confirm if ANY of the save repositoryOperations will cause
// an overwrite
if (!overwrite) {
if (zip) {
if (destZipFile.exists()) {
if (!MessageDialog.openConfirm(getShell(), "Confirm File Replace", "The zip file "
+ destZipFile.getPath() + " already exists. Do you want to overwrite it?")) {
return false;
}
}
} else {
if (exportPage.exportTaskList() && destTaskListFile.exists()) {
if (!MessageDialog.openConfirm(getShell(), "Confirm File Replace", "The task list file "
+ destTaskListFile.getPath() + " already exists. Do you want to overwrite it?")) {
return false;
}
}
if (exportPage.exportActivationHistory() && destActivationHistoryFile.exists()) {
if (!MessageDialog.openConfirm(getShell(), "Confirm File Replace",
"The task activation history file " + destActivationHistoryFile.getPath()
+ " already exists. Do you want to overwrite it?")) {
return false;
}
}
if (exportPage.exportTaskContexts()) {
for (AbstractTask task : taskContextsToExport) {
File contextFile = ContextCore.getContextManager().getFileForContext(
task.getHandleIdentifier());
File destTaskFile = new File(destDir + File.separator + contextFile.getName());
if (destTaskFile.exists()) {
if (!MessageDialog.openConfirm(getShell(), "Confirm File Replace",
"Task context files already exist in " + destDir
+ ". Do you want to overwrite them?")) {
return false;
} else {
break;
}
}
}
}
}
}
// FileCopyJob job = new FileCopyJob(destZipFile, destTaskListFile,
// destActivationHistoryFile);
TaskDataExportOperation job = new TaskDataExportOperation(exportPage.getDestinationDirectory(),
exportPage.exportTaskList(), exportPage.exportActivationHistory(), exportPage.exportTaskContexts(),
exportPage.zip(), destZipFile.getName(), taskContextsToExport);
IProgressService service = PlatformUI.getWorkbench().getProgressService();
try {
// TODO use the wizard's progress service or IProgressService.busyCursorWhile(): bug 210710
service.run(true, false, job);
} catch (InvocationTargetException e) {
StatusHandler.fail(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Could not export files", e));
} catch (InterruptedException e) {
StatusHandler.fail(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Could not export files", e));
}
exportPage.saveSettings();
return true;
}
}
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