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SocketServer (Apache Log4j 1.2.15 API)
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org.apache.log4j.net</FONT>
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Class SocketServer</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.log4j.net.SocketServer</B>
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<DT><PRE>public class <B>SocketServer</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
A <A HREF="../../../../org/apache/log4j/net/SocketNode.html" title="class in org.apache.log4j.net"><CODE>SocketNode</CODE></A> based server that uses a different hierarchy
for each client.
<pre>
<b>Usage:</b> java org.apache.log4j.net.SocketServer port configFile configDir
where <b>port</b> is a part number where the server listens,
<b>configFile</b> is a configuration file fed to the <A HREF="../../../../org/apache/log4j/PropertyConfigurator.html" title="class in org.apache.log4j"><CODE>PropertyConfigurator</CODE></A> and
<b>configDir</b> is a path to a directory containing configuration files, possibly one for each client host.
</pre>
<p>The <code>configFile</code> is used to configure the log4j
default hierarchy that the <code>SocketServer</code> will use to
report on its actions.
<p>When a new connection is opened from a previously unknown
host, say <code>foo.bar.net</code>, then the
<code>SocketServer</code> will search for a configuration file
called <code>foo.bar.net.lcf</code> under the directory
<code>configDir</code> that was passed as the third argument. If
the file can be found, then a new hierarchy is instantiated and
configured using the configuration file
<code>foo.bar.net.lcf</code>. If and when the host
<code>foo.bar.net</code> opens another connection to the server,
then the previously configured hierarchy is used.
<p>In case there is no file called <code>foo.bar.net.lcf</code>
under the directory <code>configDir</code>, then the
<em>generic</em> hierarchy is used. The generic hierarchy is
configured using a configuration file called
<code>generic.lcf</code> under the <code>configDir</code>
directory. If no such file exists, then the generic hierarchy will be
identical to the log4j default hierarchy.
<p>Having different client hosts log using different hierarchies
ensures the total independence of the clients with respect to
their logging settings.
<p>Currently, the hierarchy that will be used for a given request
depends on the IP address of the client host. For example, two
separate applicatons running on the same host and logging to the
same server will share the same hierarchy. This is perfectly safe
except that it might not provide the right amount of independence
between applications. The <code>SocketServer</code> is intended
as an example to be enhanced in order to implement more elaborate
policies.
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>1.0</DD>
<DT><B>Author:</B></DT>
<DD>Ceki Gülcü</DD>
</DL>
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<TD><CODE><B><A HREF="../../../../org/apache/log4j/net/SocketServer.html#SocketServer(java.io.File)">SocketServer</A></B>(java.io.File directory)</CODE>
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<CODE>static void</CODE></FONT></TD>
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<A NAME="SocketServer(java.io.File)"><!-- --></A><H3>
SocketServer</H3>
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public <B>SocketServer</B>(java.io.File directory)</PRE>
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main</H3>
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public static void <B>main</B>(java.lang.String[] argv)</PRE>
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