org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/views/control/dialogs/CreateSessionDialog.java

   1 /**********************************************************************
   2  * Copyright (c) 2012 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.lttng.ui.views.control.dialogs;
  13
  14 import org.eclipse.core.runtime.NullProgressMonitor;
  15 import org.eclipse.jface.dialogs.Dialog;
  16 import org.eclipse.jface.dialogs.IDialogConstants;
  17 import org.eclipse.jface.dialogs.MessageDialog;
  18 import org.eclipse.linuxtools.lttng.ui.LTTngUiPlugin;
  19 import org.eclipse.linuxtools.lttng.ui.views.control.Messages;
  20 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TargetNodeComponent;
  21 import org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceSessionGroup;
  22 import org.eclipse.linuxtools.lttng.ui.views.control.remote.IRemoteSystemProxy;
  23 import org.eclipse.rse.services.clientserver.messages.SystemMessageException;
  24 import org.eclipse.rse.subsystems.files.core.servicesubsystem.IFileServiceSubSystem;
  25 import org.eclipse.rse.subsystems.files.core.subsystems.IRemoteFile;
  26 import org.eclipse.swt.SWT;
  27 import org.eclipse.swt.graphics.Point;
  28 import org.eclipse.swt.layout.GridData;
  29 import org.eclipse.swt.layout.GridLayout;
  30 import org.eclipse.swt.widgets.Composite;
  31 import org.eclipse.swt.widgets.Control;
  32 import org.eclipse.swt.widgets.Label;
  33 import org.eclipse.swt.widgets.Shell;
  34 import org.eclipse.swt.widgets.Text;
  35
  36 /**
  37  * <b><u>CreateSessionDialog</u></b>
  38  * <p>
  39  * Dialog box for collecting session creation information.
  40  * </p>
  41  */
  42 public class CreateSessionDialog extends Dialog implements ICreateSessionDialog {
  43
  44     // ------------------------------------------------------------------------
  45     // Constants
  46     // ------------------------------------------------------------------------
  47     /**
  48      * The icon file for this dialog box.
  49      */
  50     public static final String CREATE_SESSION_ICON_FILE = "icons/elcl16/add_button.gif"; //$NON-NLS-1$
  51
  52     // ------------------------------------------------------------------------
  53     // Attributes
  54     // ------------------------------------------------------------------------
  55     /**
  56      * The dialog composite.
  57      */
  58     private Composite fDialogComposite = null;
  59     /**
  60      * The text widget for the session name
  61      */
  62     private Text fSessionNameText = null;
  63     /**
  64      * The text widget for the session path
  65      */
  66     private Text fSessionPathText = null;
  67     /**
  68      * The parent where the new node should be added.
  69      */
  70     private TraceSessionGroup fParent;
  71     /**
  72      * The session name string.
  73      */
  74     private String fSessionName = null;
  75     /**
  76      * The  session path string.
  77      */
  78     private String fSessionPath = null;
  79     /**
  80      * Flag whether default location (path) shall be used or not
  81      */
  82     private boolean fIsDefaultPath = true;
  83
  84     // ------------------------------------------------------------------------
  85     // Constructors
  86     // ------------------------------------------------------------------------
  87     /**
  88      * Constructor
  89      * @param shell - a shell for the display of the dialog
  90      */
  91     public CreateSessionDialog(Shell shell) {
  92         super(shell);
  93     }
  94
  95     // ------------------------------------------------------------------------
  96     // Accessors
  97     // ------------------------------------------------------------------------
  98     /*
  99      * (non-Javadoc)
 100      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#getSessionName()
 101      */
 102     @Override
 103     public String getSessionName() {
 104         return fSessionName;
 105     }
 106
 107     /*
 108      * (non-Javadoc)
 109      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#getSessionPath()
 110      */
 111     @Override
 112     public String getSessionPath() {
 113         return fSessionPath;
 114     }
 115
 116     /*
 117      * (non-Javadoc)
 118      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#isDefaultSessionPath()
 119      */
 120     @Override
 121     public boolean isDefaultSessionPath() {
 122         return fIsDefaultPath;
 123     }
 124
 125     /*
 126      * (non-Javadoc)
 127      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#setTraceSessionGroup(org.eclipse.linuxtools.lttng.ui.views.control.model.impl.TraceSessionGroup)
 128      */
 129     @Override
 130     public void setTraceSessionGroup(TraceSessionGroup group) {
 131         fParent = group;
 132     }
 133
 134     // ------------------------------------------------------------------------
 135     // Operations
 136     // ------------------------------------------------------------------------
 137     /*
 138      * (non-Javadoc)
 139      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 140      */
 141     @Override
 142     protected void configureShell(Shell newShell) {
 143         super.configureShell(newShell);
 144         newShell.setText(Messages.TraceControl_CreateSessionDialogTitle);
 145         newShell.setImage(LTTngUiPlugin.getDefault().loadIcon(CREATE_SESSION_ICON_FILE));
 146     }
 147
 148     /*
 149      * (non-Javadoc)
 150      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 151      */
 152     @Override
 153     protected Control createDialogArea(Composite parent) {
 154
 155         // Main dialog panel
 156         fDialogComposite = new Composite(parent, SWT.NONE);
 157         GridLayout layout = new GridLayout(2, true);
 158         fDialogComposite.setLayout(layout);
 159
 160         Label sessionNameLabel = new Label(fDialogComposite, SWT.RIGHT);
 161         sessionNameLabel.setText(Messages.TraceControl_CreateSessionNameLabel);
 162         fSessionNameText = new Text(fDialogComposite, SWT.NONE);
 163         fSessionNameText.setToolTipText(Messages.TraceControl_CreateSessionNameTooltip);
 164
 165         Label sessionPath = new Label(fDialogComposite, SWT.RIGHT);
 166         sessionPath.setText(Messages.TraceControl_CreateSessionPathLabel);
 167         fSessionPathText = new Text(fDialogComposite, SWT.NONE);
 168         fSessionPathText.setToolTipText(Messages.TraceControl_CreateSessionPathTooltip);
 169
 170         // layout widgets
 171         GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 172         fSessionPathText.setText("666.666.666.666"); //$NON-NLS-1$
 173         Point minSize = fSessionPathText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 174         data.widthHint = minSize.x + 5;
 175
 176         fSessionNameText.setLayoutData(data);
 177         fSessionPathText.setLayoutData(data);
 178
 179         fSessionPathText.setText(""); //$NON-NLS-1$
 180
 181         return fDialogComposite;
 182     }
 183
 184     /*
 185      * (non-Javadoc)
 186      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 187      */
 188     @Override
 189     protected void createButtonsForButtonBar(Composite parent) {
 190         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 191     }
 192
 193     /*
 194      * (non-Javadoc)
 195      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 196      */
 197     @Override
 198     protected void okPressed() {
 199         // Validate input data
 200         fSessionName = fSessionNameText.getText();
 201         fSessionPath = fSessionPathText.getText();
 202
 203         if (!"".equals(fSessionPath)) { //$NON-NLS-1$
 204             // validate sessionPath
 205
 206             TargetNodeComponent node = (TargetNodeComponent)fParent.getParent();
 207             IRemoteSystemProxy proxy = node.getRemoteSystemProxy();
 208             IFileServiceSubSystem fsss = proxy.getFileServiceSubSystem();
 209             if (fsss != null) {
 210                 try {
 211                     IRemoteFile remoteFolder = fsss.getRemoteFileObject(fSessionPath, new NullProgressMonitor());
 212                     if (remoteFolder.exists()) {
 213                         MessageDialog.openError(getShell(),
 214                                 Messages.TraceControl_CreateSessionDialogTitle,
 215                                 Messages.TraceControl_SessionPathAlreadyExistsError + " (" + fSessionPath + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 216                         return;
 217                     }
 218                 } catch (SystemMessageException e) {
 219                     MessageDialog.openError(getShell(),
 220                             Messages.TraceControl_CreateSessionDialogTitle,
 221                             Messages.TraceControl_FileSubSystemError + "\n" + e);  //$NON-NLS-1$
 222                     return;
 223                 }
 224             }
 225             fIsDefaultPath = false;
 226         }
 227
 228         // If no session name is specified use default name auto
 229         if ("".equals(fSessionName)) { //$NON-NLS-1$
 230             fSessionName = "auto"; //$NON-NLS-1$
 231         }
 232
 233         // Check for invalid names
 234         if (!fSessionName.matches("^[a-zA-Z0-9\\-\\_]{1,}$")) { //$NON-NLS-1$
 235             MessageDialog.openError(getShell(),
 236                     Messages.TraceControl_CreateSessionDialogTitle,
 237                     Messages.TraceControl_InvalidSessionNameError + " (" + fSessionName + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 238             return;
 239         }
 240
 241         // Check if node with name already exists in parent
 242         if(fParent.containsChild(fSessionName)) {
 243             MessageDialog.openError(getShell(),
 244                     Messages.TraceControl_CreateSessionDialogTitle,
 245                     Messages.TraceControl_SessionAlreadyExistsError + " (" + fSessionName + ")");  //$NON-NLS-1$ //$NON-NLS-2$
 246             return;
 247         }
 248
 249         // validation successful -> call super.okPressed()
 250         super.okPressed();
 251     }
 252 }