Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
  * 
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package org.apache.log4j.chainsaw;
 
 import java.util.Date;
A panel for showing a stack trace.

Author(s):
Oliver Burn
 
 class DetailPanel
     extends JPanel
     implements ListSelectionListener
 {
    
used to log events
 
     private static final Logger LOG =
         Logger.getLogger(DetailPanel.class);

    
used to format the logging event
 
     private static final MessageFormat FORMATTER = new MessageFormat(
         "<b>Time:</b> <code>{0,time,medium}</code>" +
         "&nbsp;&nbsp;<b>Priority:</b> <code>{1}</code>" +
         "&nbsp;&nbsp;<b>Thread:</b> <code>{2}</code>" +
         "&nbsp;&nbsp;<b>NDC:</b> <code>{3}</code>" +
         "<br><b>Logger:</b> <code>{4}</code>" +
         "<br><b>Location:</b> <code>{5}</code>" +
         "<br><b>Message:</b>" +
         "<pre>{6}</pre>" +
         "<b>Throwable:</b>" +
         "<pre>{7}</pre>");

    
the model for the data to render
 
     private final MyTableModel mModel;
    
pane for rendering detail
 
     private final JEditorPane mDetails;

    
Creates a new DetailPanel instance.

Parameters:
aTable the table to listen for selections on
aModel the model backing the table
 
     DetailPanel(JTable aTablefinal MyTableModel aModel) {
          = aModel;
         setLayout(new BorderLayout());
         setBorder(BorderFactory.createTitledBorder("Details: "));
 
          = new JEditorPane();
         .setEditable(false);
         .setContentType("text/html");
         add(new JScrollPane(), .);
 
         final ListSelectionModel rowSM = aTable.getSelectionModel();
         rowSM.addListSelectionListener(this);
     }

    
 
     public void valueChanged(ListSelectionEvent aEvent) {
         //Ignore extra messages.
         if (aEvent.getValueIsAdjusting()) {
             return;
         }
 
         final ListSelectionModel lsm = (ListSelectionModelaEvent.getSource();
         if (lsm.isSelectionEmpty()) {
             .setText("Nothing selected");
         } else {
             final int selectedRow = lsm.getMinSelectionIndex();
             final EventDetails e = .getEventDetails(selectedRow);
             final Object[] args =
             {
                 new Date(e.getTimeStamp()),
                 e.getPriority(),
                escape(e.getThreadName()),
                escape(e.getNDC()),
                escape(e.getCategoryName()),
                escape(e.getLocationDetails()),
                escape(e.getMessage()),
                escape(getThrowableStrRep(e))
            };
            .setText(.format(args));
            .setCaretPosition(0);
        }
    }
    ////////////////////////////////////////////////////////////////////////////
    // Private methods
    ////////////////////////////////////////////////////////////////////////////

    
Returns a string representation of a throwable.

Parameters:
aEvent contains the throwable information
Returns:
a String value
    private static String getThrowableStrRep(EventDetails aEvent) {
        final String[] strs = aEvent.getThrowableStrRep();
        if (strs == null) {
            return null;
        }
        final StringBuffer sb = new StringBuffer();
        for (int i = 0; i < strs.lengthi++) {
            sb.append(strs[i]).append("\n");
        }
        return sb.toString();
    }

    
Escape <, > & and " as their entities. It is very dumb about & handling.

Parameters:
aStr the String to escape.
Returns:
the escaped String
    private String escape(String aStr) {
        if (aStr == null) {
            return null;
        }
        final StringBuffer buf = new StringBuffer();
        for (int i = 0; i < aStr.length(); i++) {
            char c = aStr.charAt(i);
            switch (c) {
            case '<':
                buf.append("&lt;");
                break;
            case '>':
                buf.append("&gt;");
                break;
            case '\"':
                buf.append("&quot;");
                break;
            case '&':
                buf.append("&amp;");
                break;
            default:
                buf.append(c);
                break;
            }
        }
        return buf.toString();
    }
New to GrepCode? Check out our FAQ X