e-mail Appender?

[Jesse Kuhnert]

I've created a little e-mail appender that sends e-mail out to a
specific/series of e-mail addresses depending on the log-level. (We get all
error/fatal). I'm not sure if anyone is interested in something like this,
because in most cases it would probably be more like spam than help. :) We
have to maintain our product after we release it, so this just makes it much
easier than asking a DFU what is going on.

The code is a little dirty, but I can clean it all up if you guys want it.
(I think maybe the SendMail methods don't need to be synchronized, only the
init...) It uses Sun's JavaMail api as the underlying mechanism for sending
the mail. Not sure where I should post the files, I'll attach the two Java
files, and post the log4j xml config used below.

btw, Log4j kicks ass! (Although more/any appender creation documentation
would've been helpful...I can create a small one if you guys think it's
helpful, although my ~wordy~ skills are not quite up to par with my coding.
:).

Jesse

============================================
Sample log4j xml file configuration(the one we use)
============================================

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/";>

        <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
         <appender-ref ref="MAIL"/>
 </appender>

 <appender name="MAIL" class="com.frontiers.server.mail.MailAppender">
                <param name="Threshold" value="ERROR" />

  <param name="To" value="[EMAIL PROTECTED] ,
[EMAIL PROTECTED], [EMAIL PROTECTED]" />
  <param name="Subject" value="Error from CaseServer!!" />
  <param name="From" value="[EMAIL PROTECTED]" />
  <param name="Location" value="CaseServer at X company. I.P. address:
10.1.1.44" />
  <layout class="org.apache.log4j.PatternLayout">
                    <param name="ConversionPattern" value="%d{ISO8601} %-5p
%c{1} - %m%n"/>
                </layout>
        </appender>

        <appender name="A1"
class="org.apache.log4j.DailyRollingFileAppender">
            <param name="File"   value="./log/appserver.log" />
            <param name="Append" value="true" />
            <param name="DatePattern" value="'.'dd" />

            <layout class="org.apache.log4j.PatternLayout">
                <param name="ConversionPattern" value="%d{ISO8601} %-5p
%c{1} - %m%n"/>
            </layout>

            <filter class="org.apache.log4j.varia.PriorityRangeFilter">
                <param name="PriorityMin" value="DEBUG" />
                <param name="PriorityMax" value="WARN" />
                <param name="AcceptOnMatch" value="true" />
            </filter>
        </appender>

        <appender name="A2"
class="org.apache.log4j.DailyRollingFileAppender">
                <param name="File" value="./log/error.log" />
                <param name="Append" value="true" />
                <param name="DatePattern" value="'.'dd" />
                <param name="Threshold" value="ERROR" />

                <layout class="org.apache.log4j.PatternLayout">
                    <param name="ConversionPattern" value="%d{ISO8601} %-5p
%c{1} - %m%n"/>
                </layout>
        </appender>

        <root>
           <priority value ="debug" />
           <appender-ref ref="A1" />
           <appender-ref ref="A2" />
    <appender-ref ref="ASYNC"/>
        </root>
</log4j:configuration>

SendMail.java

MailAppender.java

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