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Filter out breaks based on stack trace


By : Peterpan
Date : September 16 2020, 12:00 PM
like below fixes the issue I don't think you can use the filters for that, based on this: Use breakpoints in the Visual Studio debugger Specifically, the breakpoint filters are meant for concurrent programs, and you can filter on: MachineName, ProcessId, ProcessName, ThreadId, or ThreadName.
One suggestion I would make to get something like what you want, is to add an extra parameter with a default value to the function you want to break in. Then set the value to something different in the places you don't want to monitor, and use a "Conditional Expression" in the breakpoint to make it only break on the default value.
code :


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Showing stack trace of exception that is re-thrown, rather than stack trace from throw point


By : user1430401
Date : March 29 2020, 07:55 AM
will be helpful for those in need It turns out that if you know the right terms to search, there is an answer to the problem I was trying to solve. In MSIL, it's called exception filtering, and it is available in VS2003.
In Visual Basic.NET, there is a construct called "catch-when" that will only execute a catch when a given predicate passes. This MSDN blog has a great example of how catch-when works in VB.NET vs. the results (like mine) of C#'s catch-throw.

How do I filter certain lines from a log4j stack trace?


By : user3269851
Date : March 29 2020, 07:55 AM
To fix this issue Use this filtering layout log4j add-on: http://www.openmindlab.com/lab/tools/openutilslog4j/layout.html
They have an example with log4j.xml on that page. Just use the it.openutils.log4j.FilteredPatternLayout instead of the log4j PatternLayout, and then put some entries like
code :
    <param name="Filter" value="net.sf.cglib"/>
    <param name="Filter" value="org.springframework"/>

PHP-FPM breaks up stack trace log into separate events


By : Krystel
Date : March 29 2020, 07:55 AM
wish helps you Unfortunately not
PHP-FPM simply logs each line of PHP output as a separate event. There's nothing you can do in/with PHP-FPM to change this.

Filter Exception Stack Trace from Web API Error?


By : user3740757
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , In my code I use the Exception Filters to do what you are asking for, check the following two links for more details
Web API Exception Handling
code :
public class ViewRExceptionFilterAttribute : ExceptionFilterAttribute
{
// Global context message for the modifying the context response in case of exception
private string globalHttpContextMessage;

/// <summary>
///     Overriding the OnException method as part of the Filter, which would detect the type of Action and would
///     accordingly modify the Http
///     context response
/// </summary>
/// <param name="context"></param>
public override void OnException(HttpActionExecutedContext context)
{
    // Dictionary with Type and Action for various Type actions, current method is called by various types
    Dictionary<Type, Action> dictionaryExceptionTypeAction = new Dictionary<Type, Action>();

    // Add an action for a given exception type
    dictionaryExceptionTypeAction.Add(typeof (ViewRClientException), ViewRClientExceptionAction(context.Exception));            
    dictionaryExceptionTypeAction.Add(typeof (Exception), SystemExceptionAction(context.Exception));

    // Execute an Action for a given exception type
    if (context.Exception is ViewRClientException)
        dictionaryExceptionTypeAction[typeof (ViewRClientException)]();
   else
        dictionaryExceptionTypeAction[typeof (Exception)]();

    // Reset the Context Response using global string which is set in the Exception specific action
    context.Response = new HttpResponseMessage
    {
        Content = new StringContent(globalHttpContextMessage)
    };
}

/// <summary>
///     Action method for the ViewRClientException, creates the Exception Message, which is Json serialized
/// </summary>
/// <returns></returns>
private Action ViewRClientExceptionAction(Exception viewRException)
{
    return (() =>
    {
        LogException(viewRException);

        ViewRClientException currentException = viewRException as ViewRClientException;

        ExceptionMessageUI exceptionMessageUI = new ExceptionMessageUI();

        exceptionMessageUI.ErrorType = currentException.ErrorTypeDetail;

        exceptionMessageUI.ErrorDetailList = new List<ErrorDetail>();

        foreach (ClientError clientError in currentException.ClientErrorEntity)
        {
            ErrorDetail errorDetail = new ErrorDetail();

            errorDetail.ErrorCode = clientError.ErrorCode;

            errorDetail.ErrorMessage = clientError.ErrorMessage;

            exceptionMessageUI.ErrorDetailList.Add(errorDetail);
        }

        globalHttpContextMessage = JsonConvert.SerializeObject(exceptionMessageUI, Formatting.Indented);
    });
}
public class ViewRClientException : Exception
{
    public ViewRClientException(ErrorType errorType, List<ClientError> errorEntity)
    {
        ErrorTypeDetail = errorType;
        ClientErrorEntity = errorEntity;
    }

    public ErrorType ErrorTypeDetail { get; private set; }
    public List<ClientError> ClientErrorEntity { get; private set; }
}
  public static class WebApiConfig
    {
      public static void Register(HttpConfiguration config)
      {
        // Web API configuration and services

        // Adding the Generic Exception Filter for the application
        config.Filters.Add(new ViewRExceptionFilterAttribute());

        // Web API routes
        config.MapHttpAttributeRoutes();

        config.Routes.MapHttpRoute("ControllerActionApi", "api/{controller}/{action}/{userID}",
            new {userID = RouteParameter.Optional}
            );

        config.Routes.MapHttpRoute("ControllerApi", "api/{controller}/{userID}",
            new {userID = RouteParameter.Optional}
            );
      }
   }

How to get stack trace and filter by matching lines


By : user3729328
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You can use runtime/debug.Stack to get the bytes, and then process it line by line using a bufio.Scanner to focus on lines that you're interested in. E.g:
code :
stackScanner := bufio.NewScanner(bytes.NewReader(debug.Stack()))
for stackScanner.Scan() {
    line := stackScanner.Text()
    // do your processing here to determine whether to prin the line
    fmt.Println(line)
}

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