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POc# log4net store entries in memory and Email under certain conditions
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  1. POc# log4net store entries in memory and Email under certain conditions
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    copied!<p>I currently use log4net with a RollingFileAppender.</p> <p>As each Log call is made I'd like to <strong>store this in memory</strong>. At the end of my console application run I'd like to (if an app.config setting is true) take only the Warns and Fatals and send all these messages in an Email. I notice <strong>MemoryAppender</strong> but not quite sure how to use it. Also see <strong>SMTPAppender</strong> but not sure it is the right tool, else I'll use MemoryAppender and somehow filter out only events of Levels Warn/Fatal and then email using the SmtpClient class.</p> <p>How to achieve this?</p> <p>Thanks</p> <p><strong>Update</strong></p> <p>My last part of log4net config now looks like.</p> <pre><code>&lt;appender name="MemoryAppender" type="log4net.Appender.MemoryAppender" &gt; &lt;onlyFixPartialEventData value="true" /&gt; &lt;threshold value="WARN" /&gt; &lt;/appender&gt; &lt;root&gt; &lt;level value="DEBUG" /&gt; &lt;appender-ref ref="Console" /&gt; &lt;appender-ref ref="RollingFile" /&gt; &lt;appender-ref ref="MemoryAppender" /&gt; &lt;/root&gt; </code></pre> <p>In code I do:</p> <pre><code>private static MemoryAppender MemoryAppender { get { if (memoryAppender == null) { Hierarchy h = LogManager.GetRepository() as Hierarchy; memoryAppender = h.Root.GetAppender("MemoryAppender") as MemoryAppender; } return memoryAppender; } } </code></pre> <p>Then when I want the events I call:</p> <p>MemoryAppender.GetEvents();</p> <p>I've tried MemoryAppender.GetEvents()[0].RenderedMessage but that is not the correct output, <strong>how do I get the message string as it was written to the File/Console logs with the correct pattern and time etc</strong> and build myself a StringBuilder? I'll then put this in the body of my Email and send it using the SmtpClient. <strong>RenderMessage is just giving me the string that was provided to the Log.Warn() call not what was written to the log. Is this due to not setting a layout pattern on the MemoryAppender?</strong></p> <p>Thanks</p>
 

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