/// <summary>
/// Creates the swallow exception hander.
/// </summary>
/// <param name="parsedAdviceExpression">The parsed advice expression.</param>
/// <returns></returns>
protected virtual IExceptionHandler CreateSwallowExceptionHander(ParsedAdviceExpression parsedAdviceExpression)
{
IExceptionHandler handler;
handler = new SwallowExceptionHandler(parsedAdviceExpression.ExceptionNames);
return(handler);
}
private void AddExceptionNames(ParsedAdviceExpression parsedAdviceExpression, IExceptionHandler handler)
{
foreach (string exceptionName in parsedAdviceExpression.ExceptionNames)
{
handler.SourceExceptionNames.Add(exceptionName);
}
}
/// <summary>
/// Parses the specified handler string, creating an instance of IExceptionHander.
/// </summary>
/// <param name="handlerString">The handler string.</param>
/// <returns>an instance of an exception handler or null if was not able to correctly parse
/// handler string.</returns>
protected virtual IExceptionHandler Parse(string handlerString)
{
ParsedAdviceExpression parsedAdviceExpression = ParseAdviceExpression(handlerString);
if (!parsedAdviceExpression.Success)
{
log.Warn("Could not parse exception hander statement " + handlerString);
return(null);
}
return(CreateExceptionHandler(parsedAdviceExpression));
}
/// <summary>
/// Creates the exception handler.
/// </summary>
/// <param name="parsedAdviceExpression">The parsed advice expression.</param>
/// <returns>The exception handler instance</returns>
protected virtual IExceptionHandler CreateExceptionHandler(ParsedAdviceExpression parsedAdviceExpression)
{
if (parsedAdviceExpression.ActionText.IndexOf("log") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.ContainsKey("log"))
{
handler = exceptionHandlerTable["log"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateLogExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("translate") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("translate"))
{
handler = exceptionHandlerTable["translate"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("wrap") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("wrap"))
{
handler = exceptionHandlerTable["wrap"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = ParseWrappedExceptionExpression("wrap", parsedAdviceExpression.AdviceExpression);
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("replace") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("replace"))
{
handler = exceptionHandlerTable["replace"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = ParseWrappedExceptionExpression("replace", parsedAdviceExpression.AdviceExpression);
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("swallow") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("swallow"))
{
handler = exceptionHandlerTable["swallow"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateSwallowExceptionHander(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("return") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("return"))
{
handler = exceptionHandlerTable["return"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateReturnValueExceptionHandler(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return(handler);
}
else if (parsedAdviceExpression.ActionText.IndexOf("execute") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("execute"))
{
handler = exceptionHandlerTable["execute"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateExecuteSpelExceptionHandler(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return(handler);
}
else
{
log.Warn("Could not parse exception hander statement " + parsedAdviceExpression.AdviceExpression);
}
return(null);
}
private void AddExceptionNames(ParsedAdviceExpression parsedAdviceExpression, IExceptionHandler handler)
{
foreach (string exceptionName in parsedAdviceExpression.ExceptionNames)
{
handler.SourceExceptionNames.Add(exceptionName);
}
}
/// <summary>
/// Creates the swallow exception hander.
/// </summary>
/// <param name="parsedAdviceExpression">The parsed advice expression.</param>
/// <returns></returns>
protected virtual IExceptionHandler CreateSwallowExceptionHander(ParsedAdviceExpression parsedAdviceExpression)
{
IExceptionHandler handler;
handler = new SwallowExceptionHandler(parsedAdviceExpression.ExceptionNames);
return handler;
}
/// <summary>
/// Creates the exception handler.
/// </summary>
/// <param name="parsedAdviceExpression">The parsed advice expression.</param>
/// <returns>The exception handler instance</returns>
protected virtual IExceptionHandler CreateExceptionHandler(ParsedAdviceExpression parsedAdviceExpression)
{
if (parsedAdviceExpression.ActionText.IndexOf("log") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.ContainsKey("log"))
{
handler = exceptionHandlerTable["log"];
AddExceptionNames(parsedAdviceExpression, handler);
} else
{
handler = CreateLogExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("translate") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("translate"))
{
handler = exceptionHandlerTable["translate"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("wrap") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("wrap"))
{
handler = exceptionHandlerTable["wrap"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = ParseWrappedExceptionExpression("wrap", parsedAdviceExpression.AdviceExpression);
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("replace") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("replace"))
{
handler = exceptionHandlerTable["replace"];
AddExceptionNames(parsedAdviceExpression, handler);
} else
{
handler = CreateTranslationExceptionHandler(parsedAdviceExpression.ExceptionNames);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = ParseWrappedExceptionExpression("replace", parsedAdviceExpression.AdviceExpression);
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("swallow") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("swallow"))
{
handler = exceptionHandlerTable["swallow"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateSwallowExceptionHander(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("return") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("return"))
{
handler = exceptionHandlerTable["return"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateReturnValueExceptionHandler(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return handler;
}
else if (parsedAdviceExpression.ActionText.IndexOf("execute") >= 0)
{
IExceptionHandler handler;
if (exceptionHandlerTable.Contains("execute"))
{
handler = exceptionHandlerTable["execute"];
AddExceptionNames(parsedAdviceExpression, handler);
}
else
{
handler = CreateExecuteSpelExceptionHandler(parsedAdviceExpression);
}
handler.ConstraintExpressionText = parsedAdviceExpression.ConstraintExpression;
handler.ActionExpressionText = parsedAdviceExpression.ActionExpressionText;
return handler;
}
else
{
log.Warn("Could not parse exception hander statement " + parsedAdviceExpression.AdviceExpression);
}
return null;
}