0N/A/*
2362N/A * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/Apackage sun.management.snmp.jvminstr;
0N/A
0N/A// java imports
0N/A//
0N/Aimport java.io.Serializable;
0N/A
0N/Aimport java.lang.management.ThreadMXBean;
0N/Aimport java.lang.management.ManagementFactory;
0N/A
0N/A// jmx imports
0N/A//
0N/Aimport javax.management.MBeanServer;
0N/Aimport com.sun.jmx.snmp.SnmpString;
0N/Aimport com.sun.jmx.snmp.SnmpStatusException;
0N/A
0N/A// jdmk imports
0N/A//
0N/Aimport com.sun.jmx.snmp.agent.SnmpMib;
0N/Aimport com.sun.jmx.snmp.SnmpDefinitions;
0N/A
0N/Aimport sun.management.snmp.jvmmib.JvmThreadingMBean;
0N/Aimport sun.management.snmp.jvmmib.EnumJvmThreadCpuTimeMonitoring;
0N/Aimport sun.management.snmp.jvmmib.EnumJvmThreadContentionMonitoring;
0N/Aimport sun.management.snmp.util.MibLogger;
0N/A
0N/A/**
0N/A * The class is used for implementing the "JvmThreading" group.
0N/A */
0N/Apublic class JvmThreadingImpl implements JvmThreadingMBean {
0N/A
0N/A /**
0N/A * Variable for storing the value of "JvmThreadCpuTimeMonitoring".
0N/A *
0N/A * "The state of the Thread CPU Time Monitoring feature.
0N/A * This feature can be:
0N/A *
0N/A * unsupported: The JVM does not support Thread CPU Time Monitoring.
0N/A * enabled : The JVM supports Thread CPU Time Monitoring, and it
0N/A * is enabled.
0N/A * disabled : The JVM supports Thread CPU Time Monitoring, and it
0N/A * is disabled.
0N/A *
0N/A * Only enabled(3) and disabled(4) may be supplied as values to a
0N/A * SET request. unsupported(1) can only be set internally by the
0N/A * agent.
0N/A *
0N/A * See java.lang.management.ThreadMXBean.isThreadCpuTimeSupported(),
0N/A * java.lang.management.ThreadMXBean.isThreadCpuTimeEnabled(),
0N/A * java.lang.management.ThreadMXBean.setThreadCpuTimeEnabled()
0N/A * "
0N/A *
0N/A */
0N/A final static EnumJvmThreadCpuTimeMonitoring
0N/A JvmThreadCpuTimeMonitoringUnsupported =
0N/A new EnumJvmThreadCpuTimeMonitoring("unsupported");
0N/A final static EnumJvmThreadCpuTimeMonitoring
0N/A JvmThreadCpuTimeMonitoringEnabled =
0N/A new EnumJvmThreadCpuTimeMonitoring("enabled");
0N/A final static EnumJvmThreadCpuTimeMonitoring
0N/A JvmThreadCpuTimeMonitoringDisabled =
0N/A new EnumJvmThreadCpuTimeMonitoring("disabled");
0N/A
0N/A
0N/A /**
0N/A * Variable for storing the value of "JvmThreadContentionMonitoring".
0N/A *
0N/A * "The state of the Thread Contention Monitoring feature.
0N/A * This feature can be:
0N/A *
0N/A * unsupported: The JVM does not support Thread Contention Monitoring.
0N/A * enabled : The JVM supports Thread Contention Monitoring, and it
0N/A * is enabled.
0N/A * disabled : The JVM supports Thread Contention Monitoring, and it
0N/A * is disabled.
0N/A *
0N/A * Only enabled(3) and disabled(4) may be supplied as values to a
0N/A * SET request. unsupported(1) can only be set internally by the
0N/A * agent.
0N/A *
0N/A * See java.lang.management.ThreadMXBean.isThreadContentionMonitoringSupported(),
0N/A * java.lang.management.ThreadMXBean.isThreadContentionMonitoringEnabled(),
0N/A * java.lang.management.ThreadMXBean.setThreadContentionMonitoringEnabled()
0N/A * "
0N/A *
0N/A */
0N/A static final EnumJvmThreadContentionMonitoring
0N/A JvmThreadContentionMonitoringUnsupported =
0N/A new EnumJvmThreadContentionMonitoring("unsupported");
0N/A static final EnumJvmThreadContentionMonitoring
0N/A JvmThreadContentionMonitoringEnabled =
0N/A new EnumJvmThreadContentionMonitoring("enabled");
0N/A static final EnumJvmThreadContentionMonitoring
0N/A JvmThreadContentionMonitoringDisabled =
0N/A new EnumJvmThreadContentionMonitoring("disabled");
0N/A
0N/A /**
0N/A * Constructor for the "JvmThreading" group.
0N/A * If the group contains a table, the entries created through an SNMP SET
0N/A * will not be registered in Java DMK.
0N/A */
0N/A public JvmThreadingImpl(SnmpMib myMib) {
0N/A log.debug("JvmThreadingImpl","Constructor");
0N/A }
0N/A
0N/A
0N/A /**
0N/A * Constructor for the "JvmThreading" group.
0N/A * If the group contains a table, the entries created through an SNMP SET
0N/A * will be AUTOMATICALLY REGISTERED in Java DMK.
0N/A */
0N/A public JvmThreadingImpl(SnmpMib myMib, MBeanServer server) {
0N/A log.debug("JvmThreadingImpl","Constructor with server");
0N/A }
0N/A
0N/A /**
0N/A * ThreadMXBean accessor. It is acquired from the
0N/A * java.lang.management.ManagementFactory
0N/A * @return The local ThreadMXBean.
0N/A */
0N/A static ThreadMXBean getThreadMXBean() {
0N/A return ManagementFactory.getThreadMXBean();
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadCpuTimeMonitoring" variable.
0N/A */
0N/A public EnumJvmThreadCpuTimeMonitoring getJvmThreadCpuTimeMonitoring()
0N/A throws SnmpStatusException {
0N/A
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A
0N/A if(!mbean.isThreadCpuTimeSupported()) {
0N/A log.debug("getJvmThreadCpuTimeMonitoring",
0N/A "Unsupported ThreadCpuTimeMonitoring");
0N/A return JvmThreadCpuTimeMonitoringUnsupported;
0N/A }
0N/A
0N/A try {
0N/A if(mbean.isThreadCpuTimeEnabled()) {
0N/A log.debug("getJvmThreadCpuTimeMonitoring",
0N/A "Enabled ThreadCpuTimeMonitoring");
0N/A return JvmThreadCpuTimeMonitoringEnabled;
0N/A } else {
0N/A log.debug("getJvmThreadCpuTimeMonitoring",
0N/A "Disabled ThreadCpuTimeMonitoring");
0N/A return JvmThreadCpuTimeMonitoringDisabled;
0N/A }
0N/A }catch(UnsupportedOperationException e) {
0N/A log.debug("getJvmThreadCpuTimeMonitoring",
0N/A "Newly unsupported ThreadCpuTimeMonitoring");
0N/A
0N/A return JvmThreadCpuTimeMonitoringUnsupported;
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Setter for the "JvmThreadCpuTimeMonitoring" variable.
0N/A */
0N/A public void setJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring x)
0N/A throws SnmpStatusException {
0N/A
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A
0N/A // We can trust the received value, it has been checked in
0N/A // checkJvmThreadCpuTimeMonitoring
0N/A if(JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue())
0N/A mbean.setThreadCpuTimeEnabled(true);
0N/A else
0N/A mbean.setThreadCpuTimeEnabled(false);
0N/A }
0N/A
0N/A /**
0N/A * Checker for the "JvmThreadCpuTimeMonitoring" variable.
0N/A */
0N/A public void checkJvmThreadCpuTimeMonitoring(EnumJvmThreadCpuTimeMonitoring
0N/A x)
0N/A throws SnmpStatusException {
0N/A
0N/A //Can't be set externaly to unsupported state.
0N/A if(JvmThreadCpuTimeMonitoringUnsupported.intValue() == x.intValue()) {
0N/A log.debug("checkJvmThreadCpuTimeMonitoring",
0N/A "Try to set to illegal unsupported value");
0N/A throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
0N/A }
0N/A
0N/A if ((JvmThreadCpuTimeMonitoringEnabled.intValue() == x.intValue()) ||
0N/A (JvmThreadCpuTimeMonitoringDisabled.intValue() == x.intValue())) {
0N/A
0N/A // The value is a valid value. But is the feature supported?
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A if(mbean.isThreadCpuTimeSupported()) return;
0N/A
0N/A // Not supported.
0N/A log.debug("checkJvmThreadCpuTimeMonitoring",
0N/A "Unsupported operation, can't set state");
0N/A throw new
0N/A SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
0N/A }
0N/A
0N/A // Unknown value.
0N/A log.debug("checkJvmThreadCpuTimeMonitoring",
0N/A "unknown enum value ");
0N/A throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadContentionMonitoring" variable.
0N/A */
0N/A public EnumJvmThreadContentionMonitoring getJvmThreadContentionMonitoring()
0N/A throws SnmpStatusException {
0N/A
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A
0N/A if(!mbean.isThreadContentionMonitoringSupported()) {
0N/A log.debug("getJvmThreadContentionMonitoring",
0N/A "Unsupported ThreadContentionMonitoring");
0N/A return JvmThreadContentionMonitoringUnsupported;
0N/A }
0N/A
0N/A if(mbean.isThreadContentionMonitoringEnabled()) {
0N/A log.debug("getJvmThreadContentionMonitoring",
0N/A "Enabled ThreadContentionMonitoring");
0N/A return JvmThreadContentionMonitoringEnabled;
0N/A } else {
0N/A log.debug("getJvmThreadContentionMonitoring",
0N/A "Disabled ThreadContentionMonitoring");
0N/A return JvmThreadContentionMonitoringDisabled;
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Setter for the "JvmThreadContentionMonitoring" variable.
0N/A */
0N/A public void setJvmThreadContentionMonitoring(
0N/A EnumJvmThreadContentionMonitoring x)
0N/A throws SnmpStatusException {
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A
0N/A // We can trust the received value, it has been checked in
0N/A // checkJvmThreadContentionMonitoring
0N/A if(JvmThreadContentionMonitoringEnabled.intValue() == x.intValue())
0N/A mbean.setThreadContentionMonitoringEnabled(true);
0N/A else
0N/A mbean.setThreadContentionMonitoringEnabled(false);
0N/A }
0N/A
0N/A /**
0N/A * Checker for the "JvmThreadContentionMonitoring" variable.
0N/A */
0N/A public void checkJvmThreadContentionMonitoring(
0N/A EnumJvmThreadContentionMonitoring x)
0N/A throws SnmpStatusException {
0N/A //Can't be set externaly to unsupported state.
0N/A if(JvmThreadContentionMonitoringUnsupported.intValue()==x.intValue()) {
0N/A log.debug("checkJvmThreadContentionMonitoring",
0N/A "Try to set to illegal unsupported value");
0N/A throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
0N/A }
0N/A
0N/A if ((JvmThreadContentionMonitoringEnabled.intValue()==x.intValue()) ||
0N/A (JvmThreadContentionMonitoringDisabled.intValue()==x.intValue())) {
0N/A
0N/A // The value is valid, but is the feature supported ?
0N/A ThreadMXBean mbean = getThreadMXBean();
0N/A if(mbean.isThreadContentionMonitoringSupported()) return;
0N/A
0N/A log.debug("checkJvmThreadContentionMonitoring",
0N/A "Unsupported operation, can't set state");
0N/A throw new
0N/A SnmpStatusException(SnmpDefinitions.snmpRspInconsistentValue);
0N/A }
0N/A
0N/A log.debug("checkJvmThreadContentionMonitoring",
0N/A "Try to set to unknown value");
0N/A throw new SnmpStatusException(SnmpDefinitions.snmpRspWrongValue);
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadTotalStartedCount" variable.
0N/A */
0N/A public Long getJvmThreadTotalStartedCount() throws SnmpStatusException {
0N/A return new Long(getThreadMXBean().getTotalStartedThreadCount());
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadPeakCount" variable.
0N/A */
0N/A public Long getJvmThreadPeakCount() throws SnmpStatusException {
0N/A return new Long(getThreadMXBean().getPeakThreadCount());
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadDaemonCount" variable.
0N/A */
0N/A public Long getJvmThreadDaemonCount() throws SnmpStatusException {
0N/A return new Long(getThreadMXBean().getDaemonThreadCount());
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadCount" variable.
0N/A */
0N/A public Long getJvmThreadCount() throws SnmpStatusException {
0N/A return new Long(getThreadMXBean().getThreadCount());
0N/A }
0N/A
0N/A /**
0N/A * Getter for the "JvmThreadPeakCountReset" variable.
0N/A */
0N/A public synchronized Long getJvmThreadPeakCountReset()
0N/A throws SnmpStatusException {
0N/A return new Long(jvmThreadPeakCountReset);
0N/A }
0N/A
0N/A /**
0N/A * Setter for the "JvmThreadPeakCountReset" variable.
0N/A */
0N/A public synchronized void setJvmThreadPeakCountReset(Long x)
0N/A throws SnmpStatusException {
0N/A final long l = x.longValue();
0N/A if (l > jvmThreadPeakCountReset) {
0N/A final long stamp = System.currentTimeMillis();
0N/A getThreadMXBean().resetPeakThreadCount();
0N/A jvmThreadPeakCountReset = stamp;
0N/A log.debug("setJvmThreadPeakCountReset",
0N/A "jvmThreadPeakCountReset="+stamp);
0N/A }
0N/A }
0N/A
0N/A /**
0N/A * Checker for the "JvmThreadPeakCountReset" variable.
0N/A */
0N/A public void checkJvmThreadPeakCountReset(Long x)
0N/A throws SnmpStatusException {
0N/A }
0N/A
0N/A /* Last time thread peak count was reset */
0N/A private long jvmThreadPeakCountReset=0;
0N/A
0N/A static final MibLogger log = new MibLogger(JvmThreadingImpl.class);
0N/A}