Is There a log4net Format?

[dprice]

I use Ideolog in Rider and we use log4net. I didn't see any default setting for log4net or even log4j that I could start with. Is this format available? I'm not exceptional at regex and would love a starting point! :)

[smirok]

Hi @dprice! Thank you for your request.

Could you please provide some examples of log4net logs, if this is still relevant to you?

[derek-price]

We have our log4net logs configured with this format:

        <appender name="DailyLogAppender" type="log4net.Appender.RollingFileAppender">
            <file value="SomeLogName.log" />
            <maxSizeRollBackups value="7" />
            <layout type="log4net.Layout.PatternLayout">
                <conversionPattern
                    value="%date [%thread] [%property{log4net:HostName}] [%level] %logger - %message %exception%newline" />
            </layout>
        </appender>

Here is a sample log that does not render:
UL.ImportManager.log

When I open it in Rider, I see this message first:

When I click on "Configure log formats" I see this:

[smirok]

Hi @derek-price! Default log4net pattern will be added in the formats directory soon, but as soon as you've customized log output, the following settings would work for you:

<State>
  <highlightingPatterns />
  <hiddenSubstrings />
  <parsingPatterns>
    <LogParsingPattern enabled="true" name="Log4net" pattern="^(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2},\d{3})\s(\[\d+\])\s(\[\w+\])\s\[(.*?)\]\s(.*)\s-\s(.*)$" timePattern="yyyy-MM-dd HH:mm:ss,SSS" linePattern="^\d" timeId="0" severityId="3" categoryId="4" fullmatch="false" uuid="936fc789-bf72-4c0b-a53a-a723292afd47" />
  </parsingPatterns>
  <settingsVersion>9</settingsVersion>
</State>

The highlighted log file should look similar to

[derek-price]

Where is this XML file located on Windows 11? Rider has so many folders and files scattered around the file system.

[smirok]

Please create the .xml file with the following content

<State>
  <highlightingPatterns />
  <hiddenSubstrings />
  <parsingPatterns>
    <LogParsingPattern enabled="true" name="Log4net" pattern="^(\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2},\d{3})\s(\[\d+\])\s(\[\w+\])\s\[(.*?)\]\s(.*)\s-\s(.*)$" timePattern="yyyy-MM-dd HH:mm:ss,SSS" linePattern="^\d" timeId="0" severityId="3" categoryId="4" fullmatch="false" uuid="936fc789-bf72-4c0b-a53a-a723292afd47" />
  </parsingPatterns>
  <settingsVersion>9</settingsVersion>
</State>

and import it using the button "Import" from the screen above.

[derek-price]

I've imported it, but nothing is getting highlighted unfortunately:

[smirok]

What version of the Ideolog plugin are you using?

[derek-price]

Using JetBrains Rider 2024.3 and com.intellij.ideolog (243.21565.208)

[derek-price]

Anything I can provide to help with this? Logs, etc.? I tried loading a TeamCity build log and that did not have any highlighting other than https links: