Java tutorial
/* * DBeaver - Universal Database Manager * Copyright (C) 2010-2016 Serge Rieder (serge@jkiss.org) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2) * as published by the Free Software Foundation. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package org.jkiss.dbeaver.ui.dialogs.driver; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.dialogs.IDialogSettings; import org.eclipse.jface.viewers.*; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.*; import org.jkiss.dbeaver.core.CoreMessages; import org.jkiss.dbeaver.core.DBeaverActivator; import org.jkiss.dbeaver.model.DBIcon; import org.jkiss.dbeaver.registry.DataSourceDescriptor; import org.jkiss.dbeaver.registry.DataSourceProviderDescriptor; import org.jkiss.dbeaver.registry.DataSourceProviderRegistry; import org.jkiss.dbeaver.registry.driver.DriverDescriptor; import org.jkiss.dbeaver.ui.IHelpContextIds; import org.jkiss.dbeaver.ui.UIUtils; import org.jkiss.dbeaver.ui.dialogs.HelpEnabledDialog; import org.jkiss.utils.CommonUtils; import java.util.List; /** * EditDriverDialog */ public class DriverManagerDialog extends HelpEnabledDialog implements ISelectionChangedListener, IDoubleClickListener { private static final String DIALOG_ID = "DBeaver.DriverManagerDialog";//$NON-NLS-1$ public static final String DEFAULT_DS_PROVIDER = "generic"; private DataSourceProviderDescriptor selectedProvider; private DataSourceProviderDescriptor onlyManagableProvider; private String selectedCategory; private DriverDescriptor selectedDriver; private Button newButton; private Button editButton; private Button deleteButton; private DriverTreeControl treeControl; private Image dialogImage; //private Label driverDescription; //private ProgressMonitorPart monitorPart; private Text descText; public DriverManagerDialog(Shell shell) { super(shell, IHelpContextIds.CTX_DRIVER_MANAGER); } @Override protected IDialogSettings getDialogBoundsSettings() { return UIUtils.getDialogSettings(DIALOG_ID); } @Override protected Control createDialogArea(Composite parent) { List<DataSourceProviderDescriptor> providers = DataSourceProviderRegistry.getInstance() .getDataSourceProviders(); { DataSourceProviderDescriptor manProvider = null; for (DataSourceProviderDescriptor provider : providers) { if (provider.isDriversManagable()) { if (manProvider != null) { manProvider = null; break; } manProvider = provider; } } if (manProvider != null) { onlyManagableProvider = manProvider; } } getShell().setText(CoreMessages.dialog_driver_manager_title); getShell().setMinimumSize(300, 300); dialogImage = DBeaverActivator.getImageDescriptor("/icons/driver_manager.png").createImage(); //$NON-NLS-1$ getShell().setImage(dialogImage); Composite group = UIUtils.createPlaceholder((Composite) super.createDialogArea(parent), 2); group.setLayoutData(new GridData(GridData.FILL_BOTH)); { treeControl = new DriverTreeControl(group, this, providers, false); GridData gd = new GridData(GridData.FILL_BOTH); gd.heightHint = 300; gd.widthHint = 300; treeControl.setLayoutData(gd); } { Composite buttonBar = new Composite(group, SWT.TOP); buttonBar.setLayout(new GridLayout(1, false)); GridData gd = new GridData(GridData.FILL_VERTICAL); gd.minimumWidth = 100; buttonBar.setLayoutData(gd); newButton = new Button(buttonBar, SWT.FLAT | SWT.PUSH); newButton.setText(CoreMessages.dialog_driver_manager_button_new); gd = new GridData(GridData.FILL_HORIZONTAL); gd.widthHint = 100; newButton.setLayoutData(gd); newButton.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { createDriver(); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); editButton = new Button(buttonBar, SWT.FLAT | SWT.PUSH); editButton.setText(CoreMessages.dialog_driver_manager_button_edit); gd = new GridData(GridData.FILL_HORIZONTAL); gd.widthHint = 100; editButton.setLayoutData(gd); editButton.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { editDriver(); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); deleteButton = new Button(buttonBar, SWT.FLAT | SWT.PUSH); deleteButton.setText(CoreMessages.dialog_driver_manager_button_delete); gd = new GridData(GridData.FILL_HORIZONTAL); gd.widthHint = 100; deleteButton.setLayoutData(gd); deleteButton.addSelectionListener(new SelectionListener() { @Override public void widgetSelected(SelectionEvent e) { deleteDriver(); } @Override public void widgetDefaultSelected(SelectionEvent e) { } }); { final Composite legend = UIUtils.createPlaceholder(buttonBar, 2, 5); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalIndent = 5; gd.horizontalSpan = 2; legend.setLayoutData(gd); UIUtils.createLabel(legend, DBIcon.OVER_LAMP); UIUtils.createLabel(legend, CoreMessages.dialog_driver_manager_label_user_defined); UIUtils.createLabel(legend, DBIcon.OVER_ERROR); UIUtils.createLabel(legend, CoreMessages.dialog_driver_manager_label_unavailable); } } descText = new Text(group, SWT.READ_ONLY); GridData gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalIndent = 5; gd.horizontalSpan = 2; gd.grabExcessHorizontalSpace = true; descText.setLayoutData(gd); /* monitorPart = new ProgressMonitorPart(group, null, true); GridData gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalIndent = 5; gd.horizontalSpan = 2; gd.grabExcessHorizontalSpace = true; monitorPart.setLayoutData(gd); monitorPart.setVisible(false); */ setDefaultSelection(); this.updateButtons(); return group; } @Override protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.CLOSE_ID, IDialogConstants.CLOSE_LABEL, true); } @Override protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.CLOSE_ID) { setReturnCode(OK); close(); } } @Override public void selectionChanged(SelectionChangedEvent event) { setDefaultSelection(); ISelection selection = event.getSelection(); if (selection instanceof IStructuredSelection) { Object selectedObject = ((IStructuredSelection) selection).getFirstElement(); if (selectedObject instanceof DriverDescriptor) { this.selectedDriver = (DriverDescriptor) selectedObject; this.selectedCategory = selectedDriver.getCategory(); this.selectedProvider = selectedDriver.getProviderDescriptor(); } else if (selectedObject instanceof DataSourceProviderDescriptor) { this.selectedProvider = (DataSourceProviderDescriptor) selectedObject; } else if (selectedObject instanceof DriverTreeViewer.DriverCategory) { //this.selectedProvider = null; this.selectedCategory = ((DriverTreeViewer.DriverCategory) selectedObject).getName(); } } //super.updateStatus(new Status(Status.INFO, DBeaverConstants.PLUGIN_ID, selectedDriver == null ? "" : selectedDriver.getDescription())); this.updateButtons(); } private void setDefaultSelection() { this.selectedDriver = null; this.selectedProvider = DataSourceProviderRegistry.getInstance().getDataSourceProvider(DEFAULT_DS_PROVIDER); this.selectedCategory = null; } @Override public void doubleClick(DoubleClickEvent event) { if (selectedDriver != null) { editDriver(); } } private void updateButtons() { newButton.setEnabled(onlyManagableProvider != null || (selectedProvider != null && selectedProvider.isDriversManagable())); editButton.setEnabled(selectedDriver != null); deleteButton .setEnabled(selectedDriver != null && selectedDriver.getProviderDescriptor().isDriversManagable()); if (selectedDriver != null) { descText.setText(CommonUtils.toString(selectedDriver.getDescription())); } else if (selectedCategory != null) { descText.setText(selectedCategory + " drivers"); } else if (selectedProvider != null) { descText.setText(selectedProvider.getName() + " provider"); } else { descText.setText(""); } /* if (selectedDriver != null) { monitorPart.setTaskName(CommonUtils.toString(selectedDriver.getDescription())); } else if (selectedCategory != null) { monitorPart.setTaskName(selectedCategory + " drivers"); } else if (selectedProvider != null) { monitorPart.setTaskName(selectedProvider.getName() + " provider"); } else { monitorPart.setTaskName(""); } */ } private void createDriver() { if (onlyManagableProvider != null || selectedProvider != null) { DataSourceProviderDescriptor provider = selectedProvider; if (provider == null || !provider.isDriversManagable()) { provider = onlyManagableProvider; } DriverEditDialog dialog = new DriverEditDialog(getShell(), provider, selectedCategory); if (dialog.open() == IDialogConstants.OK_ID) { treeControl.getViewer().refresh(); } } } private void editDriver() { DriverDescriptor driver = selectedDriver; if (driver != null) { //driver.validateFilesPresence(this); DriverEditDialog dialog = new DriverEditDialog(getShell(), driver); if (dialog.open() == IDialogConstants.OK_ID) { // Do nothing } treeControl.getViewer().refresh(driver); } } private void deleteDriver() { List<DataSourceDescriptor> usedDS = selectedDriver.getUsedBy(); if (!usedDS.isEmpty()) { StringBuilder message = new StringBuilder(NLS .bind(CoreMessages.dialog_driver_manager_message_cant_delete_text, selectedDriver.getName())); for (DataSourceDescriptor ds : usedDS) { message.append("\n - ").append(ds.getName()); } UIUtils.showMessageBox(getShell(), CoreMessages.dialog_driver_manager_message_cant_delete_title, message.toString(), SWT.ICON_ERROR); return; } if (UIUtils.confirmAction(getShell(), CoreMessages.dialog_driver_manager_message_delete_driver_title, CoreMessages.dialog_driver_manager_message_delete_driver_text + selectedDriver.getName() + "'?")) { selectedDriver.getProviderDescriptor().removeDriver(selectedDriver); selectedDriver.getProviderDescriptor().getRegistry().saveDrivers(); treeControl.getViewer().refresh(); } } @Override public boolean close() { UIUtils.dispose(dialogImage); return super.close(); } /* @Override public void run(boolean fork, boolean cancelable, final DBRRunnableWithProgress runnable) throws InvocationTargetException, InterruptedException { // Code copied from WizardDialog if (monitorPart != null) { monitorPart.setVisible(true); monitorPart.layout(); monitorPart.attachToCancelComponent(null); } // The operation can only be canceled if it is executed in a separate // thread. // Otherwise the UI is blocked anyway. try { ModalContext.run( new IRunnableWithProgress() { @Override public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { runnable.run(new DefaultProgressMonitor(monitor)); } }, true, monitorPart, getShell().getDisplay()); } finally { // explicitly invoke done() on our progress monitor so that its // label does not spill over to the next invocation, see bug 271530 if (monitorPart != null) { monitorPart.done(); monitorPart.setVisible(false); } } }*/ }