/// <summary>
/// Writes an exception into one or more log entries, storing them in entries with a given prefix
/// </summary>
/// <param name="source">Log source</param>
/// <param name="ex">Exception</param>
/// <param name="entries">Log entry list</param>
/// <param name="prefix">Entry string prefix</param>
public static void ToLogEntries( Source source, Exception ex, IList< Entry > entries, string prefix )
{
if ( ex == null )
{
return;
}
StackTraceInfo info = new StackTraceInfo( ex.StackTrace );
Entry baseEntry = new Entry( source, prefix + ex.Message );
if ( info.HasMatch )
{
baseEntry.Locate( info.File, int.Parse( info.Line ), 1, info.Method );
info.NextMatch( );
}
entries.Add( baseEntry );
while ( info.HasMatch )
{
entries.Add( new Entry( source, prefix + "(call stack)" ).Locate( info.File, int.Parse( info.Line ), 1, info.Method ) );
info.NextMatch( );
}
ToLogEntries( source, ex.InnerException, entries, prefix + "\t" );
}
/// <summary>
/// Converts an exception to a string, with a given number of tabs preceeding the output
/// </summary>
public static string ToString( Exception e, int tabs )
{
if ( e == null )
{
return "";
}
StringBuilder tabStringBuilder = new StringBuilder( tabs, tabs + 1 );
// Insert tabs
for ( int tabCount = 0; tabCount < tabs; ++tabCount )
{
tabStringBuilder.Append( '\t' );
}
string tabString = tabStringBuilder.ToString( );
StringBuilder builder = new StringBuilder( 256 );
// Keep the first part of the original exception string format: "type : message"
builder.Append( tabString );
builder.Append( e.GetType( ).Name );
builder.Append( " : " );
builder.Append( e.Message );
builder.Append( kNewLine );
// GRRR there's no representation of the stack trace apart from the string :(
// Tear it apart using regular expressions and rebuild
// TODO: If no matches are found, then just write the StackTrace to the builder
for ( StackTraceInfo info = new StackTraceInfo( e.StackTrace ); info.HasMatch; info.NextMatch( ) )
{
builder.AppendFormat( tabString );
builder.AppendFormat( "{0}({1}): {2}", info.File, info.Line, info.Method );
builder.Append( kNewLine );
}
return builder + ToString( e.InnerException, tabs + 1 );
}