de.is24.util.monitoring.jmx

Class InApplicationMonitorJMXConnector

java.lang.Object

de.is24.util.monitoring.jmx.InApplicationMonitorJMXConnector

All Implemented Interfaces:

ReportableObserver, DynamicMBean

public final class InApplicationMonitorJMXConnector
extends Object
implements DynamicMBean, ReportableObserver

This class publishes values registered at the Core Plugin as JMX MBeans and exposes some management operations of InApplicationMonitor. Simple values (Counter, Version, StateValue) are published directly via this class as dynamic MBean, complex types are published using an own MBean for each Reportable.

Field Summary

Fields

Modifier and Type	Field and Description
private static String	ACTIVATE
private static String	ADD_STATE_VALUES_TO_GRAPHITE
private static String	ADD_STATSD_PLUGIN
private MBeanServer	beanServer
private CorePlugin	corePlugin
private static String	DEACTIVATE
private static String	DUMP_HISTOGRAM_LIKE_VALUE_ANALYSIS
private static String	DUMP_STRING_WRITER
private static String	GET_REGISTERED_OBSERVERS
private static String	GET_REGISTERED_PLUGIN_KEYS
private static InApplicationMonitorJMXConnector	instance
private static String	IS_MONITOR_ACTIVE
private String	jmxPrefix
private static org.apache.log4j.Logger	LOG
private static String	REMOVE_ALL_PLUGINS
private Map<String,Reportable>	reportables
private static Object	semaphore

Constructor Summary

Constructors

Constructor and Description
InApplicationMonitorJMXConnector(CorePlugin corePlugin, JmxAppMon4JNamingStrategy jmxAppMon4JNamingStrategy)

Method Summary

Methods

Modifier and Type	Method and Description
void	activate()
void	addNewReportable(Reportable reportable) This method is called for each reportable that is registered on the InApplicationMonitor.
private void	addStateValuesToGraphite(String host, Integer port, String appName)
private void	addStatsdPlugin(String host, Integer port, String appName, Double sampleRate)
private ObjectName	createBeanName(String name, String type)
void	deactivate()
String	dumpHistogramLikeValueAnalysis(String base)
String	dumpStringWriter()
Object	getAttribute(String attribute)
AttributeList	getAttributes(String[] attributes)
MBeanInfo	getMBeanInfo()
List<String>	getRegisteredObservers()
List<String>	getRegisteredPluginKeys()
private Object	getValueForReportable(String attribute)
Object	invoke(String actionName, Object[] params, String[] signature)
Boolean	isMonitorActive()
private void	registerJMXStuff() registers the InApplicationMonitor as JMX MBean on the running JMX server - if no JMX server is running, one is started automagically.
protected void	registerMBeanOnJMX(Object object, String name, String type)
void	removeAllReportables()
void	setAttribute(Attribute attribute)
AttributeList	setAttributes(AttributeList attributes)
void	shutdown()
protected void	unregisterMBeanOnJMX(Object object, String name, String type)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DUMP_STRING_WRITER

private static final String DUMP_STRING_WRITER

See Also:

Constant Field Values

DUMP_HISTOGRAM_LIKE_VALUE_ANALYSIS

private static final String DUMP_HISTOGRAM_LIKE_VALUE_ANALYSIS

See Also:

Constant Field Values

ACTIVATE

private static final String ACTIVATE

See Also:

Constant Field Values

DEACTIVATE

private static final String DEACTIVATE

See Also:

Constant Field Values

IS_MONITOR_ACTIVE

private static final String IS_MONITOR_ACTIVE

See Also:

Constant Field Values

GET_REGISTERED_PLUGIN_KEYS

private static final String GET_REGISTERED_PLUGIN_KEYS

See Also:

Constant Field Values

GET_REGISTERED_OBSERVERS

private static final String GET_REGISTERED_OBSERVERS

See Also:

Constant Field Values

REMOVE_ALL_PLUGINS

private static final String REMOVE_ALL_PLUGINS

See Also:

Constant Field Values

ADD_STATSD_PLUGIN

private static final String ADD_STATSD_PLUGIN

See Also:

Constant Field Values

ADD_STATE_VALUES_TO_GRAPHITE

private static final String ADD_STATE_VALUES_TO_GRAPHITE

See Also:

Constant Field Values

LOG

private static final org.apache.log4j.Logger LOG

instance

private static volatile InApplicationMonitorJMXConnector instance

semaphore

private static final Object semaphore

reportables

private final Map<String,Reportable> reportables

beanServer

private MBeanServer beanServer

jmxPrefix

private String jmxPrefix

corePlugin

private final CorePlugin corePlugin

Constructor Detail

InApplicationMonitorJMXConnector

public InApplicationMonitorJMXConnector(CorePlugin corePlugin,
                                JmxAppMon4JNamingStrategy jmxAppMon4JNamingStrategy)

Method Detail

shutdown

public void shutdown()

addNewReportable

public void addNewReportable(Reportable reportable)

This method is called for each reportable that is registered on the InApplicationMonitor. Basically, it checks if the JMX implementation is interested in the reportable and adds it to the "reportables" map which is the base for both getAttribute(s) and getMBeanInfo().

Specified by:

addNewReportable in interface ReportableObserver

removeAllReportables

public void removeAllReportables()

registerJMXStuff

private void registerJMXStuff()

registers the InApplicationMonitor as JMX MBean on the running JMX server - if no JMX server is running, one is started automagically.

registerMBeanOnJMX

protected void registerMBeanOnJMX(Object object,
                      String name,
                      String type)
                           throws InstanceAlreadyExistsException,
                                  MBeanRegistrationException,
                                  NotCompliantMBeanException,
                                  MalformedObjectNameException

Throws:

InstanceAlreadyExistsException

MBeanRegistrationException

NotCompliantMBeanException

MalformedObjectNameException

unregisterMBeanOnJMX

protected void unregisterMBeanOnJMX(Object object,
                        String name,
                        String type)
                             throws InstanceNotFoundException,
                                    MBeanRegistrationException,
                                    MalformedObjectNameException

Throws:

InstanceNotFoundException

MBeanRegistrationException

MalformedObjectNameException

createBeanName

private ObjectName createBeanName(String name,
                        String type)
                           throws MalformedObjectNameException

Throws:

MalformedObjectNameException

getMBeanInfo

public MBeanInfo getMBeanInfo()

Specified by:

getMBeanInfo in interface DynamicMBean

getValueForReportable

private Object getValueForReportable(String attribute)

getAttribute

public Object getAttribute(String attribute)
                    throws AttributeNotFoundException,
                           MBeanException,
                           ReflectionException

Specified by:

getAttribute in interface DynamicMBean

Throws:

AttributeNotFoundException

MBeanException

ReflectionException

getAttributes

public AttributeList getAttributes(String[] attributes)

Specified by:

getAttributes in interface DynamicMBean

setAttribute

public void setAttribute(Attribute attribute)
                  throws AttributeNotFoundException,
                         InvalidAttributeValueException,
                         MBeanException,
                         ReflectionException

Specified by:

setAttribute in interface DynamicMBean

Throws:

AttributeNotFoundException

InvalidAttributeValueException

MBeanException

ReflectionException

setAttributes

public AttributeList setAttributes(AttributeList attributes)

Specified by:

setAttributes in interface DynamicMBean

invoke

public Object invoke(String actionName,
            Object[] params,
            String[] signature)
              throws MBeanException,
                     ReflectionException

Specified by:

invoke in interface DynamicMBean

Throws:

MBeanException

ReflectionException

addStatsdPlugin

private void addStatsdPlugin(String host,
                   Integer port,
                   String appName,
                   Double sampleRate)

addStateValuesToGraphite

private void addStateValuesToGraphite(String host,
                            Integer port,
                            String appName)

dumpStringWriter

public String dumpStringWriter()

dumpHistogramLikeValueAnalysis

public String dumpHistogramLikeValueAnalysis(String base)

activate

public void activate()

deactivate

public void deactivate()

isMonitorActive

public Boolean isMonitorActive()

getRegisteredPluginKeys

public List<String> getRegisteredPluginKeys()

getRegisteredObservers

public List<String> getRegisteredObservers()