abstracttracker.html

用JAVA编写的,在做实验的时候留下来的,本来想删的,但是传上来,大家分享吧

 statistics for.
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="crawlerStartTime"><!-- --></A><H3>
crawlerStartTime</H3>
<PRE>
protected long <B>crawlerStartTime</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="crawlerEndTime"><!-- --></A><H3>
crawlerEndTime</H3>
<PRE>
protected long <B>crawlerEndTime</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="crawlerPauseStarted"><!-- --></A><H3>
crawlerPauseStarted</H3>
<PRE>
protected long <B>crawlerPauseStarted</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="crawlerTotalPausedTime"><!-- --></A><H3>
crawlerTotalPausedTime</H3>
<PRE>
protected long <B>crawlerTotalPausedTime</B></PRE>
<DL>
<DL>
</DL>
</DL>
<HR>

<A NAME="lastLogPointTime"><!-- --></A><H3>
lastLogPointTime</H3>
<PRE>
protected long <B>lastLogPointTime</B></PRE>
<DL>
<DD>Timestamp of when this logger last wrote something to the log
<P>
<DL>
</DL>
</DL>
<HR>

<A NAME="shouldrun"><!-- --></A><H3>
shouldrun</H3>
<PRE>
protected boolean <B>shouldrun</B></PRE>
<DL>
<DL>
</DL>
</DL>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="AbstractTracker(java.lang.String, java.lang.String)"><!-- --></A><H3>
AbstractTracker</H3>
<PRE>
public <B>AbstractTracker</B>(java.lang.String&nbsp;name,
                       java.lang.String&nbsp;description)</PRE>
<DL>
<DL>
<DT><B>Parameters:</B><DD><CODE>name</CODE> - <DD><CODE>description</CODE> - </DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="initialize(org.archive.crawler.framework.CrawlController)"><!-- --></A><H3>
initialize</H3>
<PRE>
public void <B>initialize</B>(<A HREF="../../../../org/archive/crawler/framework/CrawlController.html" title="class in org.archive.crawler.framework">CrawlController</A>&nbsp;c)
                throws <A HREF="../../../../org/archive/crawler/framework/exceptions/FatalConfigurationException.html" title="class in org.archive.crawler.framework.exceptions">FatalConfigurationException</A></PRE>
<DL>
<DD>Sets up the Logger (including logInterval) and registers with the
 CrawlController for CrawlStatus and CrawlURIDisposition events.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html#initialize(org.archive.crawler.framework.CrawlController)">initialize</A></CODE> in interface <CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html" title="interface in org.archive.crawler.framework">StatisticsTracking</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>c</CODE> - A crawl controller instance.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/archive/crawler/framework/exceptions/FatalConfigurationException.html" title="class in org.archive.crawler.framework.exceptions">FatalConfigurationException</A></CODE> - Not thrown here. For overrides that
 go to settings system for configuration.<DT><B>See Also:</B><DD><A HREF="../../../../org/archive/crawler/event/CrawlStatusListener.html" title="interface in org.archive.crawler.event"><CODE>CrawlStatusListener</CODE></A>, 
<A HREF="../../../../org/archive/crawler/event/CrawlURIDispositionListener.html" title="interface in org.archive.crawler.event"><CODE>CrawlURIDispositionListener</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="run()"><!-- --></A><H3>
run</H3>
<PRE>
public void <B>run</B>()</PRE>
<DL>
<DD>Start thread.  Will call logActivity() at intervals specified by
 logInterval
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>run</CODE> in interface <CODE>java.lang.Runnable</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="progressStatisticsLegend()"><!-- --></A><H3>
progressStatisticsLegend</H3>
<PRE>
public java.lang.String <B>progressStatisticsLegend</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html#progressStatisticsLegend()">progressStatisticsLegend</A></CODE> in interface <CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html" title="interface in org.archive.crawler.framework">StatisticsTracking</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>legend for progress-statistics lines/log</DL>
</DD>
</DL>
<HR>

<A NAME="noteStart()"><!-- --></A><H3>
noteStart</H3>
<PRE>
public void <B>noteStart</B>()</PRE>
<DL>
<DD>Notify tracker that crawl has begun. Must be called
 outside tracker's own thread, to ensure it is noted
 before other threads start interacting with tracker.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html#noteStart()">noteStart</A></CODE> in interface <CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html" title="interface in org.archive.crawler.framework">StatisticsTracking</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="progressStatisticsEvent(java.util.EventObject)"><!-- --></A><H3>
progressStatisticsEvent</H3>
<PRE>
protected void <B>progressStatisticsEvent</B>(java.util.EventObject&nbsp;e)</PRE>
<DL>
<DD>A method for logging current crawler state.

 This method will be called by run() at intervals specified in
 the crawl order file.  It is also invoked when pausing or
 stopping a crawl to capture the state at that point.  Default behavior is
 call to <A HREF="../../../../org/archive/crawler/framework/CrawlController.html#logProgressStatistics(java.lang.String)"><CODE>CrawlController.logProgressStatistics(java.lang.String)</CODE></A> so CrawlController
 can act on progress statistics event.
 <p>
 It is recommended that for implementations of this method it be
 carefully considered if it should be synchronized in whole or in
 part
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>e</CODE> - Progress statistics event.</DL>
</DD>
</DL>
<HR>

<A NAME="getCrawlStartTime()"><!-- --></A><H3>
getCrawlStartTime</H3>
<PRE>
public long <B>getCrawlStartTime</B>()</PRE>
<DL>
<DD>Get the starting time of the crawl (as given by
 <code>System.currentTimeMillis()</code> when the crawl started).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>time fo the crawl's start</DL>
</DD>
</DL>
<HR>

<A NAME="getCrawlEndTime()"><!-- --></A><H3>
getCrawlEndTime</H3>
<PRE>
public long <B>getCrawlEndTime</B>()</PRE>
<DL>
<DD>If crawl has ended it will return the time it ended (given by
 <code>System.currentTimeMillis()</code> at that time).
 <br>
 If crawl is still going on it will return the same as
 <code>System.currentTimeMillis()</code> at the time of the call.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>The time of the crawl ending or the current time if the crawl has
         not ended.</DL>
</DD>
</DL>
<HR>

<A NAME="getCrawlTotalPauseTime()"><!-- --></A><H3>
getCrawlTotalPauseTime</H3>
<PRE>
public long <B>getCrawlTotalPauseTime</B>()</PRE>
<DL>
<DD>Returns the number of milliseconds that the crawl spent paused or
 otherwise in a nonactive state.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the number of msec. that the crawl was paused or otherwise
         suspended.</DL>
</DD>
</DL>
<HR>

<A NAME="getCrawlPauseStartedTime()"><!-- --></A><H3>
getCrawlPauseStartedTime</H3>
<PRE>
public long <B>getCrawlPauseStartedTime</B>()</PRE>
<DL>
<DD>Get the time when the the crawl was last paused/suspended (as given by
 <code>System.currentTimeMillis()</code> at that time). Will be 0 if the
 crawl is not currently paused.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>time of the crawl's last pause/suspend or 0 if the crawl is not
         currently paused.</DL>
</DD>
</DL>
<HR>

<A NAME="getCrawlerTotalElapsedTime()"><!-- --></A><H3>
getCrawlerTotalElapsedTime</H3>
<PRE>
public long <B>getCrawlerTotalElapsedTime</B>()</PRE>
<DL>
<DD><B>Description copied from interface: <CODE><A HREF="../../../../org/archive/crawler/framework/StatisticsTracking.html#getCrawlerTotalElapsedTime()">StatisticsTracking</A></CODE></B></DD>
<DD>Total amount of time spent actively crawling so far.<p>
 Returns the total amount of time (in milliseconds) that has elapsed from
 the start of the crawl and until the current time or if the crawl has