bundles/org.simantics.message.ui/src/org/simantics/message/ui/LogViewLabelProvider.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.message.ui;
  13
  14 import java.text.DateFormat;
  15 import java.text.SimpleDateFormat;
  16 import java.util.ArrayList;
  17
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.jface.resource.JFaceResources;
  20 import org.eclipse.jface.viewers.ITableFontProvider;
  21 import org.eclipse.jface.viewers.ITableLabelProvider;
  22 import org.eclipse.jface.viewers.LabelProvider;
  23 import org.eclipse.swt.graphics.Font;
  24 import org.eclipse.swt.graphics.Image;
  25 import org.simantics.message.IDetailStatus;
  26
  27 public class LogViewLabelProvider extends LabelProvider implements ITableLabelProvider, ITableFontProvider {
  28
  29         private static int MAX_LABEL_LENGTH = 200;
  30
  31     private Image debugImage;
  32     private Image infoImage;
  33         private Image okImage;
  34         private Image errorImage;
  35         private Image warningImage;
  36         private Image errorWithStackImage;
  37         private Image hierarchicalImage;
  38         ArrayList<Object> consumers = new ArrayList<Object>();
  39
  40         private LogView logView;
  41
  42         public LogViewLabelProvider(LogView logView) {
  43         debugImage = SharedImages.getImage(SharedImages.DESC_DEBUG_ST_OBJ);
  44         errorImage = SharedImages.getImage(SharedImages.DESC_ERROR_ST_OBJ);
  45                 warningImage = SharedImages.getImage(SharedImages.DESC_WARNING_ST_OBJ);
  46                 infoImage = SharedImages.getImage(SharedImages.DESC_INFO_ST_OBJ);
  47                 okImage = SharedImages.getImage(SharedImages.DESC_OK_ST_OBJ);
  48                 errorWithStackImage = SharedImages.getImage(SharedImages.DESC_ERROR_STACK_OBJ);
  49                 hierarchicalImage = SharedImages.getImage(SharedImages.DESC_HIERARCHICAL_LAYOUT_OBJ);
  50
  51                 this.logView = logView;
  52         }
  53
  54         public void dispose() {
  55                 if (consumers.size() == 0) {
  56                         super.dispose();
  57                 }
  58         }
  59
  60         public Image getColumnImage(Object element, int columnIndex) {
  61                 if (element instanceof Group) {
  62                         return (columnIndex == 0) ? hierarchicalImage : null;
  63                 }
  64
  65                 LogEntry entry = (LogEntry) element;
  66                 if (columnIndex == 0) {
  67                         switch (entry.getSeverity()) {
  68                                 case IStatus.INFO :
  69                                         return infoImage;
  70                                 case IStatus.OK :
  71                                         return okImage;
  72                 case IStatus.WARNING :
  73                     return warningImage;
  74                 case IDetailStatus.DEBUG :
  75                     return debugImage;
  76                                 default :
  77                                         return (entry.getStack() == null ? errorImage : errorWithStackImage);
  78                         }
  79                 }
  80                 return null;
  81         }
  82
  83         public String getColumnText(Object element, int columnIndex) {
  84                 if ((element instanceof LogSession) && (columnIndex == 2)) {
  85                         LogSession session = (LogSession) element;
  86                         if (session.getDate() == null)
  87                                 return ""; //$NON-NLS-1$
  88
  89                         DateFormat formatter = new SimpleDateFormat(LogEntry.F_DATE_FORMAT);
  90                         return formatter.format(session.getDate());
  91                 }
  92
  93                 if ((element instanceof Group) && (columnIndex == 0)) {
  94                         return element.toString();
  95                 }
  96
  97                 if (element instanceof LogEntry) {
  98                         LogEntry entry = (LogEntry) element;
  99                         switch (columnIndex) {
 100                                 case 0 :
 101                                         if (entry.getMessage() != null) {
 102                                                 String message = entry.getMessage();
 103                                                 if (message.length() > MAX_LABEL_LENGTH) {
 104                                                         String warning = Messages.LogViewLabelProvider_truncatedMessage;
 105                                                         StringBuffer sb = new StringBuffer(message.substring(0, MAX_LABEL_LENGTH - warning.length()));
 106                                                         sb.append(warning);
 107                                                         return sb.toString();
 108                                                 }
 109                                                 return entry.getMessage();
 110                                         }
 111                                 case 1 :
 112                                         if (entry.getPluginId() != null)
 113                                                 return entry.getPluginId();
 114                                 case 2 :
 115                                         return entry.getFormattedDate();
 116                         }
 117                 }
 118
 119                 return ""; //$NON-NLS-1$
 120         }
 121
 122         public void connect(Object consumer) {
 123                 if (!consumers.contains(consumer))
 124                         consumers.add(consumer);
 125         }
 126
 127         public void disconnect(Object consumer) {
 128                 consumers.remove(consumer);
 129                 if (consumers.size() == 0) {
 130                         dispose();
 131                 }
 132         }
 133
 134         public Font getFont(Object element, int columnIndex) {
 135                 if ((element instanceof LogSession) && (logView.isCurrentLogSession((LogSession) element))) {
 136                         return JFaceResources.getFontRegistry().getBold(JFaceResources.DEFAULT_FONT);
 137                 }
 138
 139                 return null;
 140         }
 141 }