In log4net I want to filter log messages by the value of the NDC like this:
<filter type="log4net.Filter.PropertyFilter">
<Key value="NDC" />
<stringToMatch value="MyContext" />
</filter>
Somehow the above filter is not working like I expected.
How do I have to configure a filter for my appender that will only match a certain NDC?
I just found the solution. I forgot to filter out the non matching events by adding the following line:
<filter type="log4net.Filter.DenyAllFilter" />
Related
Trying to create a FetchXML report for CRM 2016 using VS2012 following instructions here: Create a new report using SQL Server Data Tools. I want to simply find a count of cases created between two dates.
The instructions talk about copy/pasting downloaded FetchXML from the CRM Advanced find process.
FetchXML generated by the Advanced Find process to list all Cases (by ticketnumber):
<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false">
<entity name="incident">
<attribute name="incidentid" />
<attribute name="ticketnumber" />
<order attribute="ticketnumber" descending="false" />
<filter type="and">
<filter type="and">
<condition attribute="createdon" operator="on-or-after" value="2015-07-01" />
<condition attribute="createdon" operator="on-or-before" value="2016-06-30" />
</filter>
</filter>
</entity>
</fetch>
I can't find a way to aggregate with Advanced Find, but instructions here: Use FetchXML aggregation seem to indicate a couple of attribute changes to the XML is all that is necessary.
So, I changed my FetchXML in notepad++ to:
<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false" aggregate="true" >
<entity name="incident">
<attribute name="incidentid" />
<attribute name="ticketnumber" aggregate="count" alias="casecount" />
<order attribute="ticketnumber" descending="false" />
<filter type="and">
<filter type="and">
<condition attribute="createdon" operator="on-or-after" value="2015-07-01" />
<condition attribute="createdon" operator="on-or-before" value="2016-06-30" />
</filter>
</filter>
</entity>
</fetch>
This results in an error:
Either I'm doing something wrong, or that FetchXML Aggregation page is incorrect.
Can someone show me how to create a fetchXML report that counts cases opened between two dates?
You cannot select an attribute (incidentid) while at the same time doing aggregation.
Additionally, applying ordering does not make sense when you are aggregating.
I have removed those two lines, after which the FetchXML is able to run:
<fetch version="1.0" output-format="xml-platform" mapping="logical" distinct="false" aggregate="true" >
<entity name="incident">
<attribute name="ticketnumber" aggregate="count" alias="casecount" />
<filter type="and">
<filter type="and">
<condition attribute="createdon" operator="on-or-after" value="2015-07-01" />
<condition attribute="createdon" operator="on-or-before" value="2016-06-30" />
</filter>
</filter>
</entity>
</fetch>
As a side-note, you might want to use the FetchXml Tester in XrmToolBox for quickly being able to edit and execute FetchXML.
Use this for order by clause
<order alias="casecount" descending="true" />
Say I set my log4net logger's minLevel and maxLevel to FATAL and DEBUG respectively, but under some scenario I want to mute the log-items written in the WARN level, and keep all the other levels in the range active.
Is it possible to somehow use 'discrete' levels of log-levels rather than specifying a range using minLevel and maxLevel?
I assume this should be simple, but I haven't found any log4net docs or examples dealing with this issue.
You can use the LevelMatchFilter on your appender.
Example:
<appender name="FilteredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="DEBUG" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="ERROR" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
...
</appender>
This example will only print DEBUG; INFO and ERROR messages. It is easy to customize this according to your needs.
Note: Do not forget the DenyAllFilter at the end.
It's cool how log4net filters can all be combined to achieve the desired output. All log entries by default have a "Neutral" filter disposition and log4net by default logs all entries that are neutral.
What the LevelRangeFilter will do is if the level of the entry is in the range, it will set the filter disposition to "Accept" (or leave its disposition as it was if the acceptOnMatch parameter is set to false) and it will mark all entries not in the range with a disposition of "Deny".
The LevelMatchFilter will set the disposition for the filter specified in the levelToMatch parameter to "Accept" unless the acceptToMatch is set to false, then it will set matching entries to "Deny", unmatched entries will be left to what they were before.
So what you can do is use a combination of the two filters to get what you want:
<appender name="FilteredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<filter type="log4net.Filter.LevelRangeFilter">
<levelMax value="FATAL" />
<levelMin value="ERROR" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="WARN" />
<acceptOnMatch value="false" />
</filter>
</appender>
This will allow you to easily toggle the warn level on and off. All entries outside of the range are already all marked as "Deny" and the LevelMatchFilter here will mark WARN level entries to Deny as well so the DenyAllFilter is not required.
Use LevelRangeFilter
<filter type="log4net.Filter.LevelRangeFilter">
<levelMax value="FATAL" />
<levelMin value="ERROR" />
</filter>
I've just started using log4net and have some issues with filtering using strings.
I'm trying to remove EPiServer specific logging in my log4net log file as I am not interested in it.
I have the following log4net configuration for an appender:
<filter type="log4net.Filter.LevelRangeFilter">
<levelMin value="DEBUG" />
</filter>
<filter type="log4net.Filter.StringMatchFilter">
<stringToMatch value="EPiServer" />
<acceptOnMatch value="false" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
I only have one root logger. This config does not stop the EPiServer logging.
What am I doing wrong?
Try changing your StringMatchFilter to a LoggerMatchFilter
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="EPiServer" />
<acceptOnMatch value="false" />
</filter>
A StringMatchFilter filters on the content of the log message, where a LoggerMatch filters on the Logger's class Name or partial Namespace
You should remove the line
<filter type="log4net.Filter.DenyAllFilter" />
From the docs:
You can add this filter to the end of a filter chain to switch from
the default "accept all unless instructed otherwise" filtering
behavior to a "deny all unless instructed otherwise" behavior.
Which effectively reverses the logic to deny all messages unless explicitly whitelisted inside a <filter> using <acceptOnMatch value="true" />
Can log4net filter and replace matched log message?
<filter type="log4net.Filter.StringMatchFilter">
<param name="AcceptOnMatch" value="false" />
<param name="RegexToMatch" value="<Code>.*</Code>" />
</filter>
This code can match the ...content...of Code and not to write all message to file.
But, what I want is that save the message, and replace the content of Code with empty.
Thanks.
Never heard of such functionality in bundled filters.
You'll probably have to do the job yourself by subclassing log4Net.Filter.FilterSkeleton or StringMatchFilter.
Then in your XML, you'll only have to call
<filter type="Your.Application.TheFilterYouJustWrote">
<param name="AcceptOnMatch" value="false" />
<param name="RegexToMatch" value="<Code>.*</Code>" />
</filter>
Say I set my log4net logger's minLevel and maxLevel to FATAL and DEBUG respectively, but under some scenario I want to mute the log-items written in the WARN level, and keep all the other levels in the range active.
Is it possible to somehow use 'discrete' levels of log-levels rather than specifying a range using minLevel and maxLevel?
I assume this should be simple, but I haven't found any log4net docs or examples dealing with this issue.
You can use the LevelMatchFilter on your appender.
Example:
<appender name="FilteredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="DEBUG" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="ERROR" />
</filter>
<filter type="log4net.Filter.DenyAllFilter" />
...
</appender>
This example will only print DEBUG; INFO and ERROR messages. It is easy to customize this according to your needs.
Note: Do not forget the DenyAllFilter at the end.
It's cool how log4net filters can all be combined to achieve the desired output. All log entries by default have a "Neutral" filter disposition and log4net by default logs all entries that are neutral.
What the LevelRangeFilter will do is if the level of the entry is in the range, it will set the filter disposition to "Accept" (or leave its disposition as it was if the acceptOnMatch parameter is set to false) and it will mark all entries not in the range with a disposition of "Deny".
The LevelMatchFilter will set the disposition for the filter specified in the levelToMatch parameter to "Accept" unless the acceptToMatch is set to false, then it will set matching entries to "Deny", unmatched entries will be left to what they were before.
So what you can do is use a combination of the two filters to get what you want:
<appender name="FilteredConsoleAppender" type="log4net.Appender.ColoredConsoleAppender">
<filter type="log4net.Filter.LevelRangeFilter">
<levelMax value="FATAL" />
<levelMin value="ERROR" />
</filter>
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="WARN" />
<acceptOnMatch value="false" />
</filter>
</appender>
This will allow you to easily toggle the warn level on and off. All entries outside of the range are already all marked as "Deny" and the LevelMatchFilter here will mark WARN level entries to Deny as well so the DenyAllFilter is not required.
Use LevelRangeFilter
<filter type="log4net.Filter.LevelRangeFilter">
<levelMax value="FATAL" />
<levelMin value="ERROR" />
</filter>