org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/ui/views/control/dialogs/NewConnectionDialog.java

   1 /**********************************************************************
   2  * Copyright (c) 2012, 2013 Ericsson
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs;
  13
  14 import java.util.Arrays;
  15
  16 import org.eclipse.jface.dialogs.Dialog;
  17 import org.eclipse.jface.dialogs.IDialogConstants;
  18 import org.eclipse.jface.dialogs.MessageDialog;
  19 import org.eclipse.linuxtools.internal.lttng2.ui.Activator;
  20 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  21 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent;
  22 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.remote.IRemoteSystemProxy;
  23 import org.eclipse.rse.core.model.IHost;
  24 import org.eclipse.swt.SWT;
  25 import org.eclipse.swt.custom.CCombo;
  26 import org.eclipse.swt.events.SelectionEvent;
  27 import org.eclipse.swt.events.SelectionListener;
  28 import org.eclipse.swt.events.VerifyEvent;
  29 import org.eclipse.swt.events.VerifyListener;
  30 import org.eclipse.swt.graphics.Point;
  31 import org.eclipse.swt.layout.GridData;
  32 import org.eclipse.swt.layout.GridLayout;
  33 import org.eclipse.swt.widgets.Button;
  34 import org.eclipse.swt.widgets.Composite;
  35 import org.eclipse.swt.widgets.Control;
  36 import org.eclipse.swt.widgets.Group;
  37 import org.eclipse.swt.widgets.Label;
  38 import org.eclipse.swt.widgets.Shell;
  39 import org.eclipse.swt.widgets.Text;
  40
  41 /**
  42  * <p>
  43  * Dialog box for connection information.
  44  * </p>
  45  *
  46  * @author Bernd Hufmann
  47  */
  48 public class NewConnectionDialog extends Dialog implements INewConnectionDialog {
  49
  50     // ------------------------------------------------------------------------
  51     // Constants
  52     // ------------------------------------------------------------------------
  53     /**
  54      * The icon file for this dialog box.
  55      */
  56     public static final String TARGET_NEW_CONNECTION_ICON_FILE = "icons/elcl16/target_add.gif"; //$NON-NLS-1$
  57
  58     // ------------------------------------------------------------------------
  59     // Attributes
  60     // ------------------------------------------------------------------------
  61     /**
  62      * The dialog composite.
  63      */
  64     private Composite fDialogComposite = null;
  65     /**
  66      * The Group for the host combo box.
  67      */
  68     private Group fComboGroup = null;
  69     /**
  70      * The Group for the text input.
  71      */
  72     private Group fTextGroup = null;
  73     /**
  74      * The host combo box.
  75      */
  76     private CCombo fExistingHostsCombo = null;
  77     /**
  78      * The check box button for enabling/disabling the text input.
  79      */
  80     private Button fButton = null;
  81     /**
  82      * The text widget for the node name (alias)
  83      */
  84     private Text fConnectionNameText = null;
  85     /**
  86      * The text widget for the node address (IP or DNS name)
  87      */
  88     private Text fHostNameText = null;
  89     /**
  90      * The text widget for the IP port
  91      */
  92     private Text fPortText = null;
  93     /**
  94      * The parent where the new node should be added.
  95      */
  96     private ITraceControlComponent fParent;
  97     /**
  98      * The node name (alias) string.
  99      */
 100     private String fConnectionName = null;
 101     /**
 102      * The node address (IP or DNS name) string.
 103      */
 104     private String fHostName = null;
 105     /**
 106      * The IP port of the connection.
 107      */
 108     private int fPort = IRemoteSystemProxy.INVALID_PORT_NUMBER;
 109     /**
 110      * Input list of existing RSE hosts available for selection.
 111      */
 112     private IHost[] fExistingHosts = new IHost[0];
 113
 114     // ------------------------------------------------------------------------
 115     // Constructors
 116     // ------------------------------------------------------------------------
 117     /**
 118      * Constructor
 119      *
 120      * @param shell
 121      *            The shell
 122      */
 123     public NewConnectionDialog(Shell shell) {
 124         super(shell);
 125         setShellStyle(SWT.RESIZE);
 126     }
 127
 128     // ------------------------------------------------------------------------
 129     // Accessors
 130     // ------------------------------------------------------------------------
 131
 132     @Override
 133     public String getConnectionName() {
 134         return fConnectionName;
 135     }
 136
 137     @Override
 138     public String getHostName() {
 139         return fHostName;
 140     }
 141
 142     @Override
 143     public int getPort() {
 144         return fPort;
 145     }
 146
 147     @Override
 148     public void setTraceControlParent(ITraceControlComponent parent) {
 149         fParent = parent;
 150     }
 151
 152     @Override
 153     public void setHosts(IHost[] hosts) {
 154         if (hosts != null) {
 155             fExistingHosts = Arrays.copyOf(hosts, hosts.length);
 156         }
 157     }
 158
 159     @Override
 160     public void setPort(int port) {
 161         fPort = port;
 162     }
 163
 164     // ------------------------------------------------------------------------
 165     // Operations
 166     // ------------------------------------------------------------------------
 167
 168     @Override
 169     protected void configureShell(Shell newShell) {
 170         super.configureShell(newShell);
 171         newShell.setText(Messages.TraceControl_NewDialogTitle);
 172         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 173     }
 174
 175     @Override
 176     protected Control createDialogArea(Composite parent) {
 177
 178         // Main dialog panel
 179         fDialogComposite = new Composite(parent, SWT.NONE);
 180         GridLayout layout = new GridLayout(1, true);
 181         fDialogComposite.setLayout(layout);
 182         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 183
 184         // Existing connections group
 185         fComboGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 186         fComboGroup.setText(Messages.TraceControl_NewNodeExistingConnectionGroupName);
 187         layout = new GridLayout(2, true);
 188         fComboGroup.setLayout(layout);
 189         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 190         fComboGroup.setLayoutData(data);
 191
 192         fExistingHostsCombo = new CCombo(fComboGroup, SWT.READ_ONLY);
 193         fExistingHostsCombo.setToolTipText(Messages.TraceControl_NewNodeComboToolTip);
 194         fExistingHostsCombo.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
 195
 196         String items[] = new String[fExistingHosts.length];
 197         for (int i = 0; i < items.length; i++) {
 198             items[i] = String.valueOf(fExistingHosts[i].getAliasName() + " - " + fExistingHosts[i].getHostName()); //$NON-NLS-1$
 199         }
 200
 201         fExistingHostsCombo.setItems(items);
 202         fExistingHostsCombo.setEnabled(fExistingHosts.length > 0);
 203
 204         // Node information grop
 205         fTextGroup = new Group(fDialogComposite, SWT.SHADOW_NONE);
 206         layout = new GridLayout(3, true);
 207         fTextGroup.setLayout(layout);
 208         data = new GridData(GridData.FILL_HORIZONTAL);
 209         fTextGroup.setLayoutData(data);
 210
 211         fButton = new Button(fTextGroup, SWT.CHECK);
 212         fButton.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 3, 1));
 213         fButton.setText(Messages.TraceControl_NewNodeEditButtonName);
 214         fButton.setEnabled(fExistingHosts.length > 0);
 215
 216         Label connectionNameLabel = new Label(fTextGroup, SWT.RIGHT);
 217         connectionNameLabel.setText(Messages.TraceControl_NewNodeConnectionNameLabel);
 218         fConnectionNameText = new Text(fTextGroup, SWT.NONE);
 219         fConnectionNameText.setToolTipText(Messages.TraceControl_NewNodeConnectionNameTooltip);
 220         fConnectionNameText.setEnabled(fExistingHosts.length == 0);
 221
 222         Label hostNameLabel = new Label(fTextGroup, SWT.RIGHT);
 223         hostNameLabel.setText(Messages.TraceControl_NewNodeHostNameLabel);
 224         fHostNameText = new Text(fTextGroup, SWT.NONE);
 225         fHostNameText.setToolTipText(Messages.TraceControl_NewNodeHostNameTooltip);
 226         fHostNameText.setEnabled(fExistingHosts.length == 0);
 227
 228         Label portLabel = new Label(fTextGroup, SWT.RIGHT);
 229         portLabel.setText(Messages.TraceControl_NewNodePortLabel);
 230         fPortText = new Text(fTextGroup, SWT.NONE);
 231         fPortText.setToolTipText(Messages.TraceControl_NewNodePortTooltip);
 232         fPortText.setEnabled(fExistingHosts.length == 0);
 233         fPortText.addVerifyListener(new VerifyListener() {
 234             @Override
 235             public void verifyText(VerifyEvent e) {
 236                 // only numbers are allowed.
 237                 e.doit = e.text.matches("[0-9]*"); //$NON-NLS-1$
 238             }
 239         });
 240
 241         fButton.addSelectionListener(new SelectionListener() {
 242             @Override
 243             public void widgetSelected(SelectionEvent e) {
 244                 if (fButton.getSelection()) {
 245                     fExistingHostsCombo.deselectAll();
 246                     fExistingHostsCombo.setEnabled(false);
 247                     fConnectionNameText.setEnabled(true);
 248                     fHostNameText.setEnabled(true);
 249                     fPortText.setEnabled(true);
 250                 } else {
 251                     fExistingHostsCombo.setEnabled(true);
 252                     fConnectionNameText.setEnabled(false);
 253                     fHostNameText.setEnabled(false);
 254                     fPortText.setEnabled(false);
 255                 }
 256             }
 257
 258             @Override
 259             public void widgetDefaultSelected(SelectionEvent e) {
 260             }
 261         });
 262
 263         fExistingHostsCombo.addSelectionListener(new SelectionListener() {
 264             @Override
 265             public void widgetSelected(SelectionEvent e) {
 266                 int index = fExistingHostsCombo.getSelectionIndex();
 267                 fConnectionNameText.setText(fExistingHosts[index].getAliasName());
 268                 fHostNameText.setText(fExistingHosts[index].getHostName());
 269                 fPortText.setText(""); //$NON-NLS-1$
 270             }
 271
 272             @Override
 273             public void widgetDefaultSelected(SelectionEvent e) {
 274             }
 275         });
 276
 277         // layout widgets
 278         data = new GridData(GridData.FILL_HORIZONTAL);
 279         fHostNameText.setText("666.666.666.666"); //$NON-NLS-1$
 280         Point minSize = fHostNameText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 281         int widthHint = minSize.x + 5;
 282         data.widthHint = widthHint;
 283         data.horizontalSpan = 2;
 284         fConnectionNameText.setLayoutData(data);
 285
 286         data = new GridData(GridData.FILL_HORIZONTAL);
 287         data.widthHint = widthHint;
 288         data.horizontalSpan = 2;
 289         fHostNameText.setLayoutData(data);
 290
 291         data = new GridData(GridData.FILL_HORIZONTAL);
 292         data.widthHint = widthHint;
 293         data.horizontalSpan = 2;
 294         fPortText.setLayoutData(data);
 295
 296         fHostNameText.setText(""); //$NON-NLS-1$
 297
 298         return fDialogComposite;
 299     }
 300
 301     @Override
 302     protected void createButtonsForButtonBar(Composite parent) {
 303         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 304         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 305     }
 306
 307     @Override
 308     protected void okPressed() {
 309         // Validate input data
 310         fConnectionName = fConnectionNameText.getText();
 311         fHostName = fHostNameText.getText();
 312         fPort = (fPortText.getText().length() > 0) ? Integer.parseInt(fPortText.getText()) : IRemoteSystemProxy.INVALID_PORT_NUMBER;
 313
 314         if (!"".equals(fHostName)) { //$NON-NLS-1$
 315             // If no node name is specified use the node address as name
 316             if ("".equals(fConnectionName)) { //$NON-NLS-1$
 317                 fConnectionName = fHostName;
 318             }
 319             // Check if node with name already exists in parent
 320             if(fParent.containsChild(fConnectionName)) {
 321                 MessageDialog.openError(getShell(),
 322                         Messages.TraceControl_NewDialogTitle,
 323                         Messages.TraceControl_AlreadyExistsError + " (" + fConnectionName + ")");  //$NON-NLS-1$//$NON-NLS-2$
 324                 return;
 325             }
 326         }
 327         else {
 328             return;
 329         }
 330         // validation successful -> call super.okPressed()
 331         super.okPressed();
 332     }
 333 }