org.eclipse.linuxtools.lttng2.control.ui/src/org/eclipse/linuxtools/internal/lttng2/control/ui/views/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.control.ui.views.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.control.ui.Activator;
  20 import org.eclipse.linuxtools.internal.lttng2.control.ui.views.messages.Messages;
  21 import org.eclipse.linuxtools.internal.lttng2.control.ui.views.model.ITraceControlComponent;
  22 import org.eclipse.linuxtools.internal.lttng2.control.ui.views.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 host combo box.
  63      */
  64     private CCombo fExistingHostsCombo = null;
  65     /**
  66      * The check box button for enabling/disabling the text input.
  67      */
  68     private Button fButton = null;
  69     /**
  70      * The text widget for the node name (alias)
  71      */
  72     private Text fConnectionNameText = null;
  73     /**
  74      * The text widget for the node address (IP or DNS name)
  75      */
  76     private Text fHostNameText = null;
  77     /**
  78      * The text widget for the IP port
  79      */
  80     private Text fPortText = null;
  81     /**
  82      * The parent where the new node should be added.
  83      */
  84     private ITraceControlComponent fParent;
  85     /**
  86      * The node name (alias) string.
  87      */
  88     private String fConnectionName = null;
  89     /**
  90      * The node address (IP or DNS name) string.
  91      */
  92     private String fHostName = null;
  93     /**
  94      * The IP port of the connection.
  95      */
  96     private int fPort = IRemoteSystemProxy.INVALID_PORT_NUMBER;
  97     /**
  98      * Input list of existing RSE hosts available for selection.
  99      */
 100     private IHost[] fExistingHosts = new IHost[0];
 101
 102     // ------------------------------------------------------------------------
 103     // Constructors
 104     // ------------------------------------------------------------------------
 105     /**
 106      * Constructor
 107      *
 108      * @param shell
 109      *            The shell
 110      */
 111     public NewConnectionDialog(Shell shell) {
 112         super(shell);
 113         setShellStyle(SWT.RESIZE | getShellStyle());
 114     }
 115
 116     // ------------------------------------------------------------------------
 117     // Accessors
 118     // ------------------------------------------------------------------------
 119
 120     @Override
 121     public String getConnectionName() {
 122         return fConnectionName;
 123     }
 124
 125     @Override
 126     public String getHostName() {
 127         return fHostName;
 128     }
 129
 130     @Override
 131     public int getPort() {
 132         return fPort;
 133     }
 134
 135     @Override
 136     public void setTraceControlParent(ITraceControlComponent parent) {
 137         fParent = parent;
 138     }
 139
 140     @Override
 141     public void setHosts(IHost[] hosts) {
 142         if (hosts != null) {
 143             fExistingHosts = Arrays.copyOf(hosts, hosts.length);
 144         }
 145     }
 146
 147     @Override
 148     public void setPort(int port) {
 149         fPort = port;
 150     }
 151
 152     // ------------------------------------------------------------------------
 153     // Operations
 154     // ------------------------------------------------------------------------
 155
 156     @Override
 157     protected void configureShell(Shell newShell) {
 158         super.configureShell(newShell);
 159         newShell.setText(Messages.TraceControl_NewDialogTitle);
 160         newShell.setImage(Activator.getDefault().loadIcon(TARGET_NEW_CONNECTION_ICON_FILE));
 161     }
 162
 163     @Override
 164     protected Control createDialogArea(Composite parent) {
 165
 166         // Main dialog panel
 167         Composite dialogComposite = new Composite(parent, SWT.NONE);
 168         GridLayout layout = new GridLayout(1, true);
 169         dialogComposite.setLayout(layout);
 170         dialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 171
 172         // Existing connections group
 173         Group comboGroup = new Group(dialogComposite, SWT.SHADOW_NONE);
 174         comboGroup.setText(Messages.TraceControl_NewNodeExistingConnectionGroupName);
 175         layout = new GridLayout(2, true);
 176         comboGroup.setLayout(layout);
 177         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 178         comboGroup.setLayoutData(data);
 179
 180         fExistingHostsCombo = new CCombo(comboGroup, SWT.READ_ONLY);
 181         fExistingHostsCombo.setToolTipText(Messages.TraceControl_NewNodeComboToolTip);
 182         fExistingHostsCombo.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
 183
 184         String items[] = new String[fExistingHosts.length];
 185         for (int i = 0; i < items.length; i++) {
 186             items[i] = String.valueOf(fExistingHosts[i].getAliasName() + " - " + fExistingHosts[i].getHostName()); //$NON-NLS-1$
 187         }
 188
 189         fExistingHostsCombo.setItems(items);
 190         fExistingHostsCombo.setEnabled(fExistingHosts.length > 0);
 191
 192         // Node information grop
 193         Group textGroup = new Group(dialogComposite, SWT.SHADOW_NONE);
 194         layout = new GridLayout(3, true);
 195         textGroup.setLayout(layout);
 196         data = new GridData(GridData.FILL_HORIZONTAL);
 197         textGroup.setLayoutData(data);
 198
 199         fButton = new Button(textGroup, SWT.CHECK);
 200         fButton.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 3, 1));
 201         fButton.setText(Messages.TraceControl_NewNodeEditButtonName);
 202         fButton.setEnabled(fExistingHosts.length > 0);
 203
 204         Label connectionNameLabel = new Label(textGroup, SWT.RIGHT);
 205         connectionNameLabel.setText(Messages.TraceControl_NewNodeConnectionNameLabel);
 206         fConnectionNameText = new Text(textGroup, SWT.NONE);
 207         fConnectionNameText.setToolTipText(Messages.TraceControl_NewNodeConnectionNameTooltip);
 208         fConnectionNameText.setEnabled(fExistingHosts.length == 0);
 209
 210         Label hostNameLabel = new Label(textGroup, SWT.RIGHT);
 211         hostNameLabel.setText(Messages.TraceControl_NewNodeHostNameLabel);
 212         fHostNameText = new Text(textGroup, SWT.NONE);
 213         fHostNameText.setToolTipText(Messages.TraceControl_NewNodeHostNameTooltip);
 214         fHostNameText.setEnabled(fExistingHosts.length == 0);
 215
 216         Label portLabel = new Label(textGroup, SWT.RIGHT);
 217         portLabel.setText(Messages.TraceControl_NewNodePortLabel);
 218         fPortText = new Text(textGroup, SWT.NONE);
 219         fPortText.setToolTipText(Messages.TraceControl_NewNodePortTooltip);
 220         fPortText.setEnabled(fExistingHosts.length == 0);
 221         fPortText.addVerifyListener(new VerifyListener() {
 222             @Override
 223             public void verifyText(VerifyEvent e) {
 224                 // only numbers are allowed.
 225                 e.doit = e.text.matches("[0-9]*"); //$NON-NLS-1$
 226             }
 227         });
 228
 229         fButton.addSelectionListener(new SelectionListener() {
 230             @Override
 231             public void widgetSelected(SelectionEvent e) {
 232                 if (fButton.getSelection()) {
 233                     fExistingHostsCombo.deselectAll();
 234                     fExistingHostsCombo.setEnabled(false);
 235                     fConnectionNameText.setEnabled(true);
 236                     fHostNameText.setEnabled(true);
 237                     fPortText.setEnabled(true);
 238                 } else {
 239                     fExistingHostsCombo.setEnabled(true);
 240                     fConnectionNameText.setEnabled(false);
 241                     fHostNameText.setEnabled(false);
 242                     fPortText.setEnabled(false);
 243                 }
 244             }
 245
 246             @Override
 247             public void widgetDefaultSelected(SelectionEvent e) {
 248             }
 249         });
 250
 251         fExistingHostsCombo.addSelectionListener(new SelectionListener() {
 252             @Override
 253             public void widgetSelected(SelectionEvent e) {
 254                 int index = fExistingHostsCombo.getSelectionIndex();
 255                 fConnectionNameText.setText(fExistingHosts[index].getAliasName());
 256                 fHostNameText.setText(fExistingHosts[index].getHostName());
 257                 fPortText.setText(""); //$NON-NLS-1$
 258             }
 259
 260             @Override
 261             public void widgetDefaultSelected(SelectionEvent e) {
 262             }
 263         });
 264
 265         // layout widgets
 266         data = new GridData(GridData.FILL_HORIZONTAL);
 267         fHostNameText.setText("666.666.666.666"); //$NON-NLS-1$
 268         Point minSize = fHostNameText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 269         int widthHint = minSize.x + 5;
 270         data.widthHint = widthHint;
 271         data.horizontalSpan = 2;
 272         fConnectionNameText.setLayoutData(data);
 273
 274         data = new GridData(GridData.FILL_HORIZONTAL);
 275         data.widthHint = widthHint;
 276         data.horizontalSpan = 2;
 277         fHostNameText.setLayoutData(data);
 278
 279         data = new GridData(GridData.FILL_HORIZONTAL);
 280         data.widthHint = widthHint;
 281         data.horizontalSpan = 2;
 282         fPortText.setLayoutData(data);
 283
 284         fHostNameText.setText(""); //$NON-NLS-1$
 285
 286         return dialogComposite;
 287     }
 288
 289     @Override
 290     protected void createButtonsForButtonBar(Composite parent) {
 291         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 292         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 293     }
 294
 295     @Override
 296     protected void okPressed() {
 297         // Validate input data
 298         fConnectionName = fConnectionNameText.getText();
 299         fHostName = fHostNameText.getText();
 300         fPort = (fPortText.getText().length() > 0) ? Integer.parseInt(fPortText.getText()) : IRemoteSystemProxy.INVALID_PORT_NUMBER;
 301
 302         if (!"".equals(fHostName)) { //$NON-NLS-1$
 303             // If no node name is specified use the node address as name
 304             if ("".equals(fConnectionName)) { //$NON-NLS-1$
 305                 fConnectionName = fHostName;
 306             }
 307             // Check if node with name already exists in parent
 308             if(fParent.containsChild(fConnectionName)) {
 309                 MessageDialog.openError(getShell(),
 310                         Messages.TraceControl_NewDialogTitle,
 311                         Messages.TraceControl_AlreadyExistsError + " (" + fConnectionName + ")");  //$NON-NLS-1$//$NON-NLS-2$
 312                 return;
 313             }
 314         }
 315         else {
 316             return;
 317         }
 318         // validation successful -> call super.okPressed()
 319         super.okPressed();
 320     }
 321 }