2013/5/11 <[email protected]>:
> Author: rjung
> Date: Sat May 11 10:48:33 2013
> New Revision: 1481288
>
> URL: http://svn.apache.org/r1481288
> Log:
> Make remaining MXBean methods that trigger
> an action or change data available in
> Diagnostics API.
>
> Modified:
> tomcat/trunk/java/org/apache/tomcat/util/Diagnostics.java
>
> Modified: tomcat/trunk/java/org/apache/tomcat/util/Diagnostics.java
> URL:
> http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/tomcat/util/Diagnostics.java?rev=1481288&r1=1481287&r2=1481288&view=diff
> ==============================================================================
> --- tomcat/trunk/java/org/apache/tomcat/util/Diagnostics.java (original)
> +++ tomcat/trunk/java/org/apache/tomcat/util/Diagnostics.java Sat May 11
> 10:48:33 2013
> @@ -19,13 +19,18 @@
> // XXX TODO: More JavaDoc
> // XXX Optional: Add support for com.sun.management specific mbean
> //
> (http://docs.oracle.com/javase/7/docs/jre/api/management/extension/index.html)
> -// XXX Optional: Wire setters to the manager:
> -// log level setter, verbose class loading setter,
> -// setVerbose() and gc() in MemoryMXBean,
> -// resetPeakUsage(), setUsageThreshold() and
> -// setCollectionUsageThreshold() in MemoryPoolMXBean,
> -// and threadMXBean setters, probably even for
> -// com.sun.management like HotSpotDiagnosticMXBean.
> +// XXX Optional: Wire additional public static methods implemented here
> +// to the manager (think about manager access roles!)
> +// setLoggerLevel(),
> +// setVerboseClassLoading(),
> +// setThreadContentionMonitoringEnabled(),
> +// setThreadCpuTimeEnabled(),
> +// resetPeakThreadCount(),
> +// setVerboseGarbageCollection()
> +// gc(),
> +// resetPeakUsage(),
> +// setUsageThreshold(),
> +// setCollectionUsageThreshold()
>
> package org.apache.tomcat.util;
>
> @@ -184,6 +189,84 @@ public class Diagnostics {
> }
>
> /**
> + * Set verbose garbage collection logging
> + *
> + * @param verbose whether to enable verbose gc logging
> + */
> + public static void setVerboseGarbageCollection(boolean verbose) {
> + memoryMXBean.setVerbose(verbose);
> + boolean checkValue = memoryMXBean.isVerbose();
> + if (verbose != checkValue) {
> + log.error("Could not set verbose garbage collection logging to "
> + verbose +
> + ", got " + checkValue + " instead");
> + }
> + }
> +
> + /**
> + * Initiate garbage collection via MX Bean
> + */
> + public static void gc() {
> + memoryMXBean.gc();
> + }
> +
> + /**
> + * Reset peak memory usage data in MemoryPoolMXBean
> + *
> + * @param name name of the MemoryPoolMXBean or "all"
> + */
> + public static void resetPeakUsage(String name) {
> + for (MemoryPoolMXBean mbean: memoryPoolMXBeans) {
> + if (name.equals("all") || name.equals(mbean.getName())) {
> + mbean.resetPeakUsage();
> + }
> + }
> + }
> +
> + /**
> + * Reset peak memory usage data in MemoryPoolMXBean
The above Javadoc is wrong (it is the same as for the previous method).
> + *
> + * @param name name of the MemoryPoolMXBean
> + */
> + public static boolean setUsageThreshold(String name, long threshold) {
> + for (MemoryPoolMXBean mbean: memoryPoolMXBeans) {
> + if (name.equals(mbean.getName())) {
> + try {
> + mbean.setUsageThreshold(threshold);
> + return true;
> + } catch (IllegalArgumentException ex) {
> + // IGNORE
> + } catch (UnsupportedOperationException ex) {
> + // IGNORE
> + }
> + return false;
> + }
> + }
> + return false;
> + }
> +
> + /**
> + * Reset peak memory collection usage data in MemoryPoolMXBean
> + *
The same here.
> + * @param name name of the MemoryPoolMXBean
> + */
> + public static boolean setCollectionUsageThreshold(String name, long
> threshold) {
> + for (MemoryPoolMXBean mbean: memoryPoolMXBeans) {
> + if (name.equals(mbean.getName())) {
> + try {
> + mbean.setCollectionUsageThreshold(threshold);
> + return true;
> + } catch (IllegalArgumentException ex) {
> + // IGNORE
> + } catch (UnsupportedOperationException ex) {
> + // IGNORE
> + }
> + return false;
> + }
> + }
> + return false;
> + }
> +
> + /**
> * Formats the thread dump header for one thread.
> *
> * @param ti the ThreadInfo describing the thread
Best regards,
Konstantin Kolinko
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