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      * @param parent - trace control parent for validation of session name
  91      */
  92     public CreateSessionDialog(Shell shell, TraceSessionGroup parent) {
  93         super(shell);
  94         fParent = parent;
  95     }
  96
  97     // ------------------------------------------------------------------------
  98     // Accessors
  99     // ------------------------------------------------------------------------
 100     /*
 101      * (non-Javadoc)
 102      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#getSessionName()
 103      */
 104     @Override
 105     public String getSessionName() {
 106         return fSessionName;
 107     }
 108
 109     /*
 110      * (non-Javadoc)
 111      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#getSessionPath()
 112      */
 113     @Override
 114     public String getSessionPath() {
 115         return fSessionPath;
 116     }
 117
 118     /*
 119      * (non-Javadoc)
 120      * @see org.eclipse.linuxtools.lttng.ui.views.control.dialogs.ICreateSessionDialog#isDefaultSessionPath()
 121      */
 122     @Override
 123     public boolean isDefaultSessionPath() {
 124         return fIsDefaultPath;
 125     }
 126
 127     // ------------------------------------------------------------------------
 128     // Operations
 129     // ------------------------------------------------------------------------
 130     /*
 131      * (non-Javadoc)
 132      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 133      */
 134     @Override
 135     protected void configureShell(Shell newShell) {
 136         super.configureShell(newShell);
 137         newShell.setText(Messages.TraceControl_CreateSessionDialogTitle);
 138         newShell.setImage(LTTngUiPlugin.getDefault().loadIcon(CREATE_SESSION_ICON_FILE));
 139     }
 140
 141     /*
 142      * (non-Javadoc)
 143      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 144      */
 145     @Override
 146     protected Control createDialogArea(Composite parent) {
 147
 148         // Main dialog panel
 149         fDialogComposite = new Composite(parent, SWT.NONE);
 150         GridLayout layout = new GridLayout(2, true);
 151         fDialogComposite.setLayout(layout);
 152
 153         Label sessionNameLabel = new Label(fDialogComposite, SWT.RIGHT);
 154         sessionNameLabel.setText(Messages.TraceControl_CreateSessionNameLabel);
 155         fSessionNameText = new Text(fDialogComposite, SWT.NONE);
 156         fSessionNameText.setToolTipText(Messages.TraceControl_CreateSessionNameTooltip);
 157
 158         Label sessionPath = new Label(fDialogComposite, SWT.RIGHT);
 159         sessionPath.setText(Messages.TraceControl_CreateSessionPathLabel);
 160         fSessionPathText = new Text(fDialogComposite, SWT.NONE);
 161         fSessionPathText.setToolTipText(Messages.TraceControl_CreateSessionPathTooltip);
 162
 163         // layout widgets
 164         GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 165         fSessionPathText.setText("666.666.666.666"); //$NON-NLS-1$
 166         Point minSize = fSessionPathText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
 167         data.widthHint = minSize.x + 5;
 168
 169         fSessionNameText.setLayoutData(data);
 170         fSessionPathText.setLayoutData(data);
 171
 172         fSessionPathText.setText(""); //$NON-NLS-1$
 173
 174         return fDialogComposite;
 175     }
 176
 177     /*
 178      * (non-Javadoc)
 179      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 180      */
 181     @Override
 182     protected void createButtonsForButtonBar(Composite parent) {
 183         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 184     }
 185
 186     /*
 187      * (non-Javadoc)
 188      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 189      */
 190     @Override
 191     protected void okPressed() {
 192         // Validate input data
 193         fSessionName = fSessionNameText.getText();
 194         fSessionPath = fSessionPathText.getText();
 195
 196         if (!"".equals(fSessionPath)) { //$NON-NLS-1$
 197             // validate sessionPath
 198
 199             TargetNodeComponent node = (TargetNodeComponent)fParent.getParent();
 200             IRemoteSystemProxy proxy = node.getRemoteSystemProxy();
 201             IFileServiceSubSystem fsss = proxy.getFileServiceSubSystem();
 202             if (fsss != null) {
 203                 try {
 204                     IRemoteFile remoteFolder = fsss.getRemoteFileObject(fSessionPath, new NullProgressMonitor());
 205                     if (remoteFolder.exists()) {
 206                         MessageDialog.openError(getShell(),
 207                                 Messages.TraceControl_CreateSessionDialogTitle,
 208                                 Messages.TraceControl_SessionPathAlreadyExistsError + " (" + fSessionPath + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 209                         return;
 210                     }
 211                 } catch (SystemMessageException e) {
 212                     MessageDialog.openError(getShell(),
 213                             Messages.TraceControl_CreateSessionDialogTitle,
 214                             Messages.TraceControl_FileSubSystemError + "\n" + e);  //$NON-NLS-1$
 215                     return;
 216                 }
 217             }
 218             fIsDefaultPath = false;
 219         }
 220
 221         // If no session name is specified use default name auto
 222         if ("".equals(fSessionName)) { //$NON-NLS-1$
 223             fSessionName = "auto"; //$NON-NLS-1$
 224         }
 225
 226         // Check for invalid names
 227         if (!fSessionName.matches("^[a-zA-Z0-9\\-\\_]{1,}$")) { //$NON-NLS-1$
 228             MessageDialog.openError(getShell(),
 229                     Messages.TraceControl_CreateSessionDialogTitle,
 230                     Messages.TraceControl_InvalidSessionNameError + " (" + fSessionName + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 231             return;
 232         }
 233
 234         // Check if node with name already exists in parent
 235         if(fParent.containsChild(fSessionName)) {
 236             MessageDialog.openError(getShell(),
 237                     Messages.TraceControl_CreateSessionDialogTitle,
 238                     Messages.TraceControl_SessionAlreadyExistsError + " (" + fSessionName + ")");  //$NON-NLS-1$ //$NON-NLS-2$
 239             return;
 240         }
 241
 242         // validation successful -> call super.okPressed()
 243         super.okPressed();
 244     }
 245 }