org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/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.internal.lttng2.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.internal.lttng2.ui.Activator;
  19 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.messages.Messages;
  20 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TargetNodeComponent;
  21 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionGroup;
  22 import org.eclipse.linuxtools.internal.lttng2.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  * <p>
  38  * Dialog box for collecting session creation information.
  39  * </p>
  40  *
  41  * @author Bernd Hufmann
  42  */
  43 public class CreateSessionDialog extends Dialog implements ICreateSessionDialog {
  44
  45     // ------------------------------------------------------------------------
  46     // Constants
  47     // ------------------------------------------------------------------------
  48     /**
  49      * The icon file for this dialog box.
  50      */
  51     public static final String CREATE_SESSION_ICON_FILE = "icons/elcl16/add_button.gif"; //$NON-NLS-1$
  52
  53     // ------------------------------------------------------------------------
  54     // Attributes
  55     // ------------------------------------------------------------------------
  56     /**
  57      * The dialog composite.
  58      */
  59     private Composite fDialogComposite = null;
  60     /**
  61      * The text widget for the session name
  62      */
  63     private Text fSessionNameText = null;
  64     /**
  65      * The text widget for the session path
  66      */
  67     private Text fSessionPathText = null;
  68     /**
  69      * The parent where the new node should be added.
  70      */
  71     private TraceSessionGroup fParent = null;
  72     /**
  73      * The session name string.
  74      */
  75     private String fSessionName = null;
  76     /**
  77      * The  session path string.
  78      */
  79     private String fSessionPath = null;
  80     /**
  81      * Flag whether default location (path) shall be used or not
  82      */
  83     private boolean fIsDefaultPath = true;
  84
  85     // ------------------------------------------------------------------------
  86     // Constructors
  87     // ------------------------------------------------------------------------
  88     /**
  89      * Constructor
  90      * @param shell - a shell for the display of the dialog
  91      */
  92     public CreateSessionDialog(Shell shell) {
  93         super(shell);
  94         setShellStyle(SWT.RESIZE);
  95     }
  96
  97     // ------------------------------------------------------------------------
  98     // Accessors
  99     // ------------------------------------------------------------------------
 100     /*
 101      * (non-Javadoc)
 102      * @see org.eclipse.linuxtools.internal.lttng2.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.internal.lttng2.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.internal.lttng2.ui.views.control.dialogs.ICreateSessionDialog#isDefaultSessionPath()
 121      */
 122     @Override
 123     public boolean isDefaultSessionPath() {
 124         return fIsDefaultPath;
 125     }
 126
 127     /*
 128      * (non-Javadoc)
 129      * @see org.eclipse.linuxtools.internal.lttng2.ui.views.control.dialogs.ICreateSessionDialog#setTraceSessionGroup(org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl.TraceSessionGroup)
 130      */
 131     @Override
 132     public void setTraceSessionGroup(TraceSessionGroup group) {
 133         fParent = group;
 134     }
 135
 136     // ------------------------------------------------------------------------
 137     // Operations
 138     // ------------------------------------------------------------------------
 139     /*
 140      * (non-Javadoc)
 141      * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
 142      */
 143     @Override
 144     protected void configureShell(Shell newShell) {
 145         super.configureShell(newShell);
 146         newShell.setText(Messages.TraceControl_CreateSessionDialogTitle);
 147         newShell.setImage(Activator.getDefault().loadIcon(CREATE_SESSION_ICON_FILE));
 148     }
 149
 150     /*
 151      * (non-Javadoc)
 152      * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 153      */
 154     @Override
 155     protected Control createDialogArea(Composite parent) {
 156
 157         // Main dialog panel
 158         fDialogComposite = new Composite(parent, SWT.NONE);
 159         GridLayout layout = new GridLayout(4, true);
 160         fDialogComposite.setLayout(layout);
 161         fDialogComposite.setLayoutData(new GridData(GridData.FILL_BOTH));
 162
 163         Label sessionNameLabel = new Label(fDialogComposite, SWT.RIGHT);
 164         sessionNameLabel.setText(Messages.TraceControl_CreateSessionNameLabel);
 165         fSessionNameText = new Text(fDialogComposite, SWT.NONE);
 166         fSessionNameText.setToolTipText(Messages.TraceControl_CreateSessionNameTooltip);
 167
 168         Label sessionPath = new Label(fDialogComposite, SWT.RIGHT);
 169         sessionPath.setText(Messages.TraceControl_CreateSessionPathLabel);
 170         fSessionPathText = new Text(fDialogComposite, SWT.NONE);
 171         fSessionPathText.setToolTipText(Messages.TraceControl_CreateSessionPathTooltip);
 172
 173         // layout widgets
 174         GridData data = new GridData(GridData.FILL_HORIZONTAL);
 175         data.horizontalSpan = 3;
 176
 177         fSessionNameText.setLayoutData(data);
 178         fSessionPathText.setLayoutData(data);
 179
 180         getShell().setMinimumSize(new Point(300, 150));
 181
 182         return fDialogComposite;
 183     }
 184
 185     /*
 186      * (non-Javadoc)
 187      * @see org.eclipse.jface.dialogs.Dialog#createButtonsForButtonBar(org.eclipse.swt.widgets.Composite)
 188      */
 189     @Override
 190     protected void createButtonsForButtonBar(Composite parent) {
 191         createButton(parent, IDialogConstants.CANCEL_ID, "&Cancel", true); //$NON-NLS-1$
 192         createButton(parent, IDialogConstants.OK_ID, "&Ok", true); //$NON-NLS-1$
 193     }
 194
 195     /*
 196      * (non-Javadoc)
 197      * @see org.eclipse.jface.dialogs.Dialog#okPressed()
 198      */
 199     @Override
 200     protected void okPressed() {
 201         // Validate input data
 202         fSessionName = fSessionNameText.getText();
 203         fSessionPath = fSessionPathText.getText();
 204
 205         if (!"".equals(fSessionPath)) { //$NON-NLS-1$
 206             // validate sessionPath
 207
 208             TargetNodeComponent node = (TargetNodeComponent)fParent.getParent();
 209             IRemoteSystemProxy proxy = node.getRemoteSystemProxy();
 210             IFileServiceSubSystem fsss = proxy.getFileServiceSubSystem();
 211             if (fsss != null) {
 212                 try {
 213                     IRemoteFile remoteFolder = fsss.getRemoteFileObject(fSessionPath, new NullProgressMonitor());
 214                     if (remoteFolder.exists()) {
 215                         MessageDialog.openError(getShell(),
 216                                 Messages.TraceControl_CreateSessionDialogTitle,
 217                                 Messages.TraceControl_SessionPathAlreadyExistsError + " (" + fSessionPath + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 218                         return;
 219                     }
 220                 } catch (SystemMessageException e) {
 221                     MessageDialog.openError(getShell(),
 222                             Messages.TraceControl_CreateSessionDialogTitle,
 223                             Messages.TraceControl_FileSubSystemError + "\n" + e);  //$NON-NLS-1$
 224                     return;
 225                 }
 226             }
 227             fIsDefaultPath = false;
 228         }
 229
 230         // If no session name is specified use default name auto
 231         if ("".equals(fSessionName)) { //$NON-NLS-1$
 232             fSessionName = "auto"; //$NON-NLS-1$
 233         }
 234
 235         // Check for invalid names
 236         if (!fSessionName.matches("^[a-zA-Z0-9\\-\\_]{1,}$")) { //$NON-NLS-1$
 237             MessageDialog.openError(getShell(),
 238                     Messages.TraceControl_CreateSessionDialogTitle,
 239                     Messages.TraceControl_InvalidSessionNameError + " (" + fSessionName + ") \n");  //$NON-NLS-1$ //$NON-NLS-2$
 240             return;
 241         }
 242
 243         // Check if node with name already exists in parent
 244         if(fParent.containsChild(fSessionName)) {
 245             MessageDialog.openError(getShell(),
 246                     Messages.TraceControl_CreateSessionDialogTitle,
 247                     Messages.TraceControl_SessionAlreadyExistsError + " (" + fSessionName + ")");  //$NON-NLS-1$ //$NON-NLS-2$
 248             return;
 249         }
 250
 251         // validation successful -> call super.okPressed()
 252         super.okPressed();
 253     }
 254 }