Java tutorial
/******************************************************************************* * Copyright (c) 2014 Zend Technologies Ltd. * 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 * * Contributors: * Zend Technologies Ltd. - initial API and implementation *******************************************************************************/ package org.zend.php.zendserver.deployment.ui.tunneling; import java.util.List; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.IStructuredContentProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.window.Window; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.php.internal.server.core.Server; import org.eclipse.php.internal.ui.wizards.IControlHandler; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Group; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.Text; import org.zend.php.server.ui.fragments.AbstractCompositeFragment; import org.zend.php.zendserver.deployment.core.tunnel.PortForwarding; import org.zend.php.zendserver.deployment.core.tunnel.SSHTunnelConfiguration; import org.zend.php.zendserver.deployment.ui.wizards.PortForwardingWizard; /** * @author Wojciech Galanciak, 2014 * */ @SuppressWarnings("restriction") public class TunnelingCompositeFragment extends AbstractCompositeFragment { public static String ID = "org.zend.php.zendserver.deployment.ui.preferences.TunnelingCompositeFragment"; //$NON-NLS-1$ private Button enableButton; private Text usernameText; private Text passwordText; private Button browseButton; private Text privateKeyText; private Text proxyHostText; private Text proxyPortText; private Table table; private Button addButton; private Button editButton; private Button removeButton; private ModifyListener modifyListener = new ModifyListener() { public void modifyText(ModifyEvent e) { updateData(); validate(); } }; private TableViewer portForwardingViewer; private SSHTunnelConfiguration config; public TunnelingCompositeFragment(Composite parent, IControlHandler handler, boolean isForEditing) { super(parent, handler, isForEditing, Messages.TunnelingCompositeFragment_Name, getTitle(isForEditing), getDescription(isForEditing)); this.config = new SSHTunnelConfiguration(); createControl(isForEditing); } /** * Saves the page's state */ public void saveValues() { if (config.isEnabled()) { config.store(getServer()); } else { SSHTunnelConfiguration.remove(getServer()); } } public boolean performOk() { saveValues(); return true; } public String getId() { return ID; } public void validate() { if (config.isEnabled()) { String username = config.getUsername(); if (username == null || username.isEmpty()) { setMessage(Messages.TunnelingCompositeFragment_EmptyUsernameError, IMessageProvider.ERROR); return; } String password = config.getPassword(); if (password == null || password.isEmpty()) { String privateKey = privateKeyText.getText(); if (privateKey.isEmpty()) { setMessage(Messages.TunnelingCompositeFragment_NoPathNorPasswordError, IMessageProvider.ERROR); return; } } List<PortForwarding> portForwardings = config.getPortForwardings(); if (portForwardings == null || portForwardings.isEmpty()) { setMessage(Messages.TunnelingCompositeFragment_NoForwardingError, IMessageProvider.ERROR); return; } String httpProxyPort = config.getHttpProxyPort(); if (httpProxyPort != null && !httpProxyPort.isEmpty()) { try { Integer.valueOf(httpProxyPort); } catch (NumberFormatException e) { setMessage(Messages.TunnelingCompositeFragment_InvalidProxyPortError, IMessageProvider.ERROR); return; } } } setMessage(getDescription(), IMessageProvider.NONE); } @Override protected void createControl(Composite parent) { enableButton = new Button(parent, SWT.CHECK); enableButton.setText(Messages.TunnelingCompositeFragment_EnableLabel); enableButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { boolean enabled = enableButton.getSelection(); updateState(enabled); updateData(); validate(); } }); createCredentialsGroup(parent); createPortForwardingGroup(parent); createProxyGroup(parent); } @Override protected void init() { Server server = getServer(); if (server != null) { SSHTunnelConfiguration currentConfig = SSHTunnelConfiguration.read(server); boolean enabled = currentConfig.isEnabled(); enableButton.setSelection(enabled); updateState(enabled); String username = currentConfig.getUsername(); if (username != null) { usernameText.setText(username); } String password = currentConfig.getPassword(); if (password != null) { passwordText.setText(password); } String privateKey = currentConfig.getPrivateKey(); if (privateKey != null) { privateKeyText.setText(privateKey); } config.setPortForwardings(currentConfig.getPortForwardings()); portForwardingViewer.refresh(); String proxyHost = currentConfig.getHttpProxyHost(); if (proxyHost != null) { proxyHostText.setText(proxyHost); } String proxyPort = currentConfig.getHttpProxyPort(); if (proxyPort != null) { proxyPortText.setText(proxyPort); } } else { enableButton.setSelection(false); } updateData(); updateState(config.isEnabled()); validate(); } private void createCredentialsGroup(Composite parent) { Group credentialsGroup = createGroup(Messages.TunnelingCompositeFragment_CredentialsLabel, parent); usernameText = createText(Messages.TunnelingCompositeFragment_UsernameLabel, credentialsGroup); usernameText.forceFocus(); passwordText = createPasswordText(Messages.TunnelingCompositeFragment_PasswordLabel, credentialsGroup); Label label = new Label(credentialsGroup, SWT.NONE); label.setText(Messages.TunnelingCompositeFragment_KeyLabel); privateKeyText = new Text(credentialsGroup, SWT.BORDER); privateKeyText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); privateKeyText.setToolTipText(Messages.TunnelingCompositeFragment_KeyTooltip); privateKeyText.addModifyListener(modifyListener); browseButton = new Button(credentialsGroup, SWT.PUSH); browseButton.setText(Messages.TunnelingCompositeFragment_BrowseLabel); browseButton.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false)); browseButton.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { final FileDialog d = new FileDialog(e.display.getActiveShell(), SWT.OPEN); final String file = d.open(); if (file != null) { privateKeyText.setText(file); validate(); } } }); } private void createProxyGroup(Composite parent) { Group proxyGroup = createGroup(Messages.TunnelingCompositeFragment_ProxyLabel, parent); proxyHostText = createText(Messages.TunnelingCompositeFragment_ProxyHostLabel, proxyGroup); proxyPortText = createText(Messages.TunnelingCompositeFragment_ProxyPort, proxyGroup); } private void createPortForwardingGroup(Composite parent) { Group portForwardingGroup = createGroup(Messages.TunnelingCompositeFragment_ForwardingLabel, parent); portForwardingViewer = new TableViewer(portForwardingGroup); portForwardingViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { handleEdit(getSelection()); portForwardingViewer.refresh(); validate(); } }); portForwardingViewer.setContentProvider(new IStructuredContentProvider() { public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { } public void dispose() { } public Object[] getElements(Object input) { if (input instanceof List<?>) { List<?> entries = (List<?>) input; return entries.toArray(new PortForwarding[entries.size()]); } if (input instanceof SSHTunnelConfiguration) { return ((SSHTunnelConfiguration) input).getPortForwardings().toArray(new PortForwarding[0]); } return new PortForwarding[0]; } }); portForwardingViewer.setInput(config); table = portForwardingViewer.getTable(); table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); table.setHeaderVisible(true); table.setLinesVisible(true); TableViewerColumn columnViewer = new TableViewerColumn(portForwardingViewer, SWT.NONE); columnViewer.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((PortForwarding) element).getSide().getName(); } }); TableColumn column = columnViewer.getColumn(); column.setWidth(50); column.setText(Messages.TunnelingCompositeFragment_SideLabel); columnViewer = new TableViewerColumn(portForwardingViewer, SWT.NONE); columnViewer.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((PortForwarding) element).getRemoteAddress(); } }); column = columnViewer.getColumn(); column.setWidth(100); column.setText(Messages.TunnelingCompositeFragment_RemoteAddrLabel); columnViewer = new TableViewerColumn(portForwardingViewer, SWT.NONE); columnViewer.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return String.valueOf(((PortForwarding) element).getRemotePort()); } }); column = columnViewer.getColumn(); column.setWidth(100); column.setText(Messages.TunnelingCompositeFragment_RemotePortLabel); columnViewer = new TableViewerColumn(portForwardingViewer, SWT.NONE); columnViewer.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((PortForwarding) element).getLocalAddress(); } }); column = columnViewer.getColumn(); column.setWidth(100); column.setText(Messages.TunnelingCompositeFragment_LocalAddrLabel); columnViewer = new TableViewerColumn(portForwardingViewer, SWT.NONE); columnViewer.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return String.valueOf(((PortForwarding) element).getLocalPort()); } }); column = columnViewer.getColumn(); column.setWidth(100); column.setText(Messages.TunnelingCompositeFragment_LocalPortLabel); Composite buttonsContainer = new Composite(portForwardingGroup, SWT.NONE); buttonsContainer.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, true)); FillLayout layout = new FillLayout(SWT.VERTICAL); buttonsContainer.setLayout(layout); addButton = new Button(buttonsContainer, SWT.PUSH); addButton.setText(Messages.TunnelingCompositeFragment_AddLabel); addButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleAdd(); portForwardingViewer.refresh(); validate(); } }); editButton = new Button(buttonsContainer, SWT.PUSH); editButton.setText(Messages.TunnelingCompositeFragment_EditLabel); editButton.setEnabled(false); editButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleEdit(getSelection()); portForwardingViewer.setInput(config); validate(); } }); removeButton = new Button(buttonsContainer, SWT.PUSH); removeButton.setText(Messages.TunnelingCompositeFragment_RemoveLabel); removeButton.setEnabled(false); removeButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { handleRemove(getSelection()); portForwardingViewer.refresh(); validate(); } }); table.addSelectionListener(new SelectionAdapter() { public void widgetSelected(SelectionEvent e) { boolean enabled = getSelection().length != 0; editButton.setEnabled(enabled); removeButton.setEnabled(enabled); } }); } private void handleRemove(PortForwarding[] selection) { List<PortForwarding> portForwardings = config.getPortForwardings(); for (PortForwarding entry : selection) { portForwardings.remove(entry); } } private void handleEdit(PortForwarding[] selection) { PortForwardingWizard wizard = new PortForwardingWizard(selection[0]); WizardDialog dialog = new WizardDialog(getShell(), wizard); if (dialog.open() == Window.OK) { PortForwarding portForwarding = wizard.getResult(); List<PortForwarding> portForwardings = config.getPortForwardings(); int index = portForwardings.indexOf(selection[0]); portForwardings.remove(selection[0]); portForwardings.add(index, portForwarding); } } private void handleAdd() { PortForwardingWizard wizard = new PortForwardingWizard(); WizardDialog dialog = new WizardDialog(getShell(), wizard); if (dialog.open() == Window.OK) { PortForwarding portForwarding = wizard.getResult(); List<PortForwarding> portForwardings = config.getPortForwardings(); portForwardings.add(portForwarding); } } private PortForwarding[] getSelection() { IStructuredSelection selection = (IStructuredSelection) portForwardingViewer.getSelection(); List<?> list = selection.toList(); return list.toArray(new PortForwarding[list.size()]); } private Text createText(String name, Composite parent) { Label label = new Label(parent, SWT.NONE); label.setText(name); Text text = new Text(parent, SWT.BORDER); text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); text.addModifyListener(modifyListener); return text; } private Text createPasswordText(String name, Composite parent) { Label label = new Label(parent, SWT.NONE); label.setText(name); Text text = new Text(parent, SWT.BORDER | SWT.PASSWORD); text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); text.addModifyListener(modifyListener); return text; } private Group createGroup(String name, Composite parent) { Group group = new Group(parent, SWT.NONE); group.setText(name); group.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 3, 1)); group.setLayout(new GridLayout(3, false)); return group; } private void updateData() { if (enableButton != null) { config.setEnabled(enableButton.getSelection()); } if (usernameText != null) { String username = usernameText.getText(); config.setUsername(username); } if (passwordText != null) { String password = passwordText.getText(); config.setPassword(password); } if (privateKeyText != null) { String privateKey = privateKeyText.getText(); config.setPrivateKey(privateKey); } if (proxyHostText != null) { String httpProxyHost = proxyHostText.getText(); config.setHttpProxyHost(httpProxyHost); } if (proxyPortText != null) { String httpProxyPort = proxyPortText.getText(); config.setHttpProxyPort(httpProxyPort); } } private void updateState(boolean enabled) { usernameText.setEnabled(enabled); passwordText.setEnabled(enabled); browseButton.setEnabled(enabled); privateKeyText.setEnabled(enabled); proxyHostText.setEnabled(enabled); proxyPortText.setEnabled(enabled); table.setEnabled(enabled); addButton.setEnabled(enabled); editButton.setEnabled(false); removeButton.setEnabled(false); } private static String getTitle(boolean isEditing) { return isEditing ? Messages.TunnelingCompositeFragment_EditTitle : Messages.TunnelingCompositeFragment_CreateTitle; } private static String getDescription(boolean isEditing) { return isEditing ? Messages.TunnelingCompositeFragment_DescEdit : Messages.TunnelingCompositeFragment_DescCreate; } }