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Stats (Apache JMeter API)
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org.apache.jmeter.monitor.util</FONT>
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Class Stats</H2>
<PRE>
<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by"><B>org.apache.jmeter.monitor.util.Stats</B>
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<DL>
<DT>public class <B>Stats</B><DT>extends <A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL>
<P>
Description:
<p>
Stats is responsible for calculating the load and health of a given server.
It uses tomcat's status servlet results. A schema was generated for the XML
output and JAXB was used to generate classes.
<p>
The equations are:
<p>
memory weight = (int)(50 * (free/max))<br>
thread weight = (int)(50 * (current/max))
<p>
The load factors are stored in the properties files. Simply change the values
in the properties to change how load is calculated. The defaults values are
memory (50) and threads (50). The sum of the factors must equal 100.
<P>
<P>
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<P>
<!-- ======== NESTED CLASS SUMMARY ======== -->
<!-- =========== FIELD SUMMARY =========== -->
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<B>Field Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#ACTIVE">ACTIVE</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#ACTIVE_PER">ACTIVE_PER</A></B></CODE>
<BR>
</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#DEAD">DEAD</A></B></CODE>
<BR>
</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#DEFAULT_MEMORY_FACTOR">DEFAULT_MEMORY_FACTOR</A></B></CODE>
<BR>
</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#DEFAULT_THREAD_FACTOR">DEFAULT_THREAD_FACTOR</A></B></CODE>
<BR>
</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#HEALTHY">HEALTHY</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#HEALTHY_PER">HEALTHY_PER</A></B></CODE>
<BR>
</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#WARNING">WARNING</A></B></CODE>
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</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static double</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#WARNING_PER">WARNING_PER</A></B></CODE>
<BR>
</TD>
</TR>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<B>Constructor Summary</B></FONT></TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#Stats()">Stats</A></B>()</CODE>
<BR>
</TD>
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<!-- ========== METHOD SUMMARY =========== -->
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<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#calculateLoad(org.apache.jmeter.monitor.model.Status)">calculateLoad</A></B>(<A HREF="../../../../../org/apache/jmeter/monitor/model/Status.html" title="interface in org.apache.jmeter.monitor.model">Status</A> stat)</CODE>
<BR>
The method is responsible for taking a status object and calculating an
int value from 1 to 100. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#calculateMemoryLoad(org.apache.jmeter.monitor.model.Status)">calculateMemoryLoad</A></B>(<A HREF="../../../../../org/apache/jmeter/monitor/model/Status.html" title="interface in org.apache.jmeter.monitor.model">Status</A> stat)</CODE>
<BR>
Method will calculate the memory load: used / max = load. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#calculateStatus(org.apache.jmeter.monitor.model.Status)">calculateStatus</A></B>(<A HREF="../../../../../org/apache/jmeter/monitor/model/Status.html" title="interface in org.apache.jmeter.monitor.model">Status</A> stat)</CODE>
<BR>
Method should calculate if the server is: dead, active, warning or
healthy. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/jmeter/monitor/util/Stats.html#calculateThreadLoad(org.apache.jmeter.monitor.model.Status)">calculateThreadLoad</A></B>(<A HREF="../../../../../org/apache/jmeter/monitor/model/Status.html" title="interface in org.apache.jmeter.monitor.model">Status</A> stat)</CODE>
<BR>
Method will calculate the thread load: busy / max = load. </TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TD>
</TR>
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