org.eclipse.linuxtools.lttng.ui/src/org/eclipse/linuxtools/lttng/ui/tracecontrol/model/config/TraceChannelCellModifier.java

   1 /*******************************************************************************
   2  * Copyright (c) 2011 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  *******************************************************************************/
  13 package org.eclipse.linuxtools.lttng.ui.tracecontrol.model.config;
  14
  15 import org.eclipse.jface.viewers.ICellModifier;
  16 import org.eclipse.linuxtools.lttng.core.tracecontrol.model.TraceResource.TraceState;
  17 import org.eclipse.linuxtools.lttng.core.tracecontrol.model.config.TraceChannel;
  18 import org.eclipse.linuxtools.lttng.ui.tracecontrol.wizards.KernelTraceChannelConfigurationPage;
  19 import org.eclipse.swt.widgets.TableItem;
  20
  21 /**
  22  * <b><u>TraceChannelCellModifier</u></b>
  23  * <p>
  24  *  ICellModifier implementation for TableViewers in order to modify cells of a table used for
  25  *  for displaying and configuring trace channel information.
  26  * </p>
  27  */
  28 public class TraceChannelCellModifier implements ICellModifier {
  29
  30     // ------------------------------------------------------------------------
  31     // Attributes
  32     // -----------------------------------------------------------------------
  33     KernelTraceChannelConfigurationPage fConfigPage;
  34
  35     // ------------------------------------------------------------------------
  36     // Constructors
  37     // -----------------------------------------------------------------------
  38
  39     /**
  40      * Constructor
  41      *
  42      * @param configPage The trace configuration reference
  43      */
  44     public TraceChannelCellModifier(KernelTraceChannelConfigurationPage configPage) {
  45         fConfigPage = configPage;
  46     }
  47
  48     /*
  49      * (non-Javadoc)
  50      * @see org.eclipse.jface.viewers.ICellModifier#canModify(java.lang.Object, java.lang.String)
  51      */
  52     @Override
  53     public boolean canModify(Object element, String property) {
  54         // Find the index of the column
  55         int columnIndex = fConfigPage.getColumnProperties().indexOf(property);
  56
  57         switch (columnIndex) {
  58             case 0: // Name
  59                 return false;
  60             case 1: // Enabled
  61             case 2: // Buffer Overwrite
  62             case 3: // SubbufNum
  63             case 4: // SubbufSize
  64                 if ((fConfigPage.getTraceState() == TraceState.CREATED) || (fConfigPage.getTraceState() == TraceState.CONFIGURED)) {
  65                     return true;
  66                 }
  67                 break;
  68             case 5: // Channel Timer
  69                 if (fConfigPage.isLocalTrace() && ((fConfigPage.getTraceState() == TraceState.CREATED) || (fConfigPage.getTraceState() == TraceState.CONFIGURED))) {
  70                     return true;
  71                 }
  72                 break;
  73             default:
  74         }
  75         return false;
  76     }
  77
  78     /*
  79      * (non-Javadoc)
  80      * @see org.eclipse.jface.viewers.ICellModifier#getValue(java.lang.Object, java.lang.String)
  81      */
  82     @Override
  83     public Object getValue(Object element, String property) {
  84
  85         // Find the index of the column
  86         int columnIndex = fConfigPage.getColumnProperties().indexOf(property);
  87
  88         Object result = null;
  89         TraceChannel chan = (TraceChannel) element;
  90
  91         switch (columnIndex) {
  92             case 0: // Name
  93                 result = chan.getName();
  94                 break;
  95             case 1: // Enabled
  96                 result = Boolean.valueOf(chan.isEnabled());
  97                 break;
  98             case 2: // Buffer Overwrite
  99                 result = Boolean.valueOf(chan.isChannelOverride());
 100                 break;
 101             case 3: // SubbufNum
 102                 result = String.valueOf(chan.getSubbufNum());
 103                 break;
 104             case 4: // SubbufSize
 105                 result = String.valueOf(chan.getSubbufSize());
 106                 break;
 107             case 5: // Channel Timer
 108                 result = String.valueOf(chan.getTimer());
 109                 break;
 110             default:
 111                     result = "";  //$NON-NLS-1$
 112         }
 113         return result;
 114     }
 115
 116     /*
 117      * (non-Javadoc)
 118      * @see org.eclipse.jface.viewers.ICellModifier#modify(java.lang.Object, java.lang.String, java.lang.Object)
 119      */
 120     @Override
 121     public void modify(Object element, String property, Object value) {
 122         //  Find the index of the column
 123         int columnIndex = fConfigPage.getColumnProperties().indexOf(property);
 124
 125         TableItem item = (TableItem) element;
 126         TraceChannel chan = (TraceChannel) item.getData();
 127         String valueString;
 128
 129         switch (columnIndex) {
 130         case 0:
 131             chan.setName(((String) value).trim());
 132             break;
 133         case 1: // Name
 134             chan.setIsEnabled(((Boolean) value).booleanValue());
 135             break;
 136         case 2:
 137             chan.setIsChannelOverride(((Boolean) value).booleanValue());
 138             break;
 139         case 3: // SubbufNum
 140             valueString = ((String) value).trim();
 141             if (valueString.length() == 0) {
 142                 valueString = "0"; //$NON-NLS-1$
 143             }
 144             else if(TraceChannel.UNKNOWN_STRING.equals(valueString)) {
 145                 chan.setSubbufNum(TraceChannel.UNKNOWN_VALUE);
 146             }
 147             else {
 148                 chan.setSubbufNum(Integer.parseInt(valueString));
 149             }
 150             break;
 151         case 4: // SubbufSize
 152             valueString = ((String) value).trim();
 153             if (valueString.length() == 0) {
 154                 valueString = "0"; //$NON-NLS-1$
 155             }
 156             else if(TraceChannel.UNKNOWN_STRING.equals(valueString)) {
 157                 chan.setSubbufSize(TraceChannel.UNKNOWN_VALUE);
 158             }
 159             else {
 160                 chan.setSubbufSize(Integer.parseInt(valueString));
 161             }
 162             break;
 163         case 5:  // Channel Timer
 164             valueString = ((String) value).trim();
 165             if (valueString.length() == 0) {
 166                 valueString = "0"; //$NON-NLS-1$
 167             }
 168             else if(TraceChannel.UNKNOWN_STRING.equals(valueString)) {
 169                 chan.setTimer(TraceChannel.UNKNOWN_VALUE);
 170             }
 171             else {
 172                 chan.setTimer(Integer.parseInt(valueString));
 173             }
 174             break;
 175         default:
 176         }
 177         fConfigPage.refresh();
 178     }
 179 }