org.opends.server.monitors
Class MemoryUsageMonitorProvider

java.lang.Object
  extended by java.lang.Thread
      extended by org.opends.server.api.DirectoryThread
          extended by org.opends.server.api.MonitorProvider<MemoryUsageMonitorProviderCfg>
              extended by org.opends.server.monitors.MemoryUsageMonitorProvider
All Implemented Interfaces:
java.lang.Runnable

public class MemoryUsageMonitorProvider
extends MonitorProvider<MemoryUsageMonitorProviderCfg>

This class defines a monitor provider that reports information about Directory Server memory usage.


Nested Class Summary
 
Nested classes/interfaces inherited from class java.lang.Thread
java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler
 
Field Summary
 
Fields inherited from class java.lang.Thread
MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY
 
Constructor Summary
MemoryUsageMonitorProvider()
          Initializes this monitor provider.
 
Method Summary
 java.util.ArrayList<Attribute> getMonitorData()
          Retrieves a set of attributes containing monitor data that should be returned to the client if the corresponding monitor entry is requested.
 java.lang.String getMonitorInstanceName()
          Retrieves the name of this monitor provider.
 long getUpdateInterval()
          Retrieves the length of time in milliseconds that should elapse between calls to the updateMonitorData method.
 void initializeMonitorProvider(MemoryUsageMonitorProviderCfg configuration)
          Initializes this monitor provider based on the information in the provided configuration entry.
 void updateMonitorData()
          Performs any processing periodic processing that may be desired to update the information associated with this monitor.
 
Methods inherited from class org.opends.server.api.MonitorProvider
finalizeMonitorProvider, getMonitorObjectClass, isConfigurationAcceptable, run
 
Methods inherited from class org.opends.server.api.DirectoryThread
getAssociatedTask, getCreationStackTrace, getDebugProperties, getParentThread, setAssociatedTask
 
Methods inherited from class java.lang.Thread
activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

MemoryUsageMonitorProvider

public MemoryUsageMonitorProvider()
Initializes this monitor provider.

Method Detail

initializeMonitorProvider

public void initializeMonitorProvider(MemoryUsageMonitorProviderCfg configuration)
                               throws ConfigException,
                                      InitializationException
Initializes this monitor provider based on the information in the provided configuration entry.

Specified by:
initializeMonitorProvider in class MonitorProvider<MemoryUsageMonitorProviderCfg>
Parameters:
configuration - The configuration to use to initialize this monitor provider.
Throws:
ConfigException - If an unrecoverable problem arises in the process of performing the initialization.
InitializationException - If a problem occurs during initialization that is not related to the server configuration.

getMonitorInstanceName

public java.lang.String getMonitorInstanceName()
Retrieves the name of this monitor provider. It should be unique among all monitor providers, including all instances of the same monitor provider.

Specified by:
getMonitorInstanceName in class MonitorProvider<MemoryUsageMonitorProviderCfg>
Returns:
The name of this monitor provider.

getUpdateInterval

public long getUpdateInterval()
Retrieves the length of time in milliseconds that should elapse between calls to the updateMonitorData method. A negative or zero return value indicates that the updateMonitorData method should not be periodically invoked.

Specified by:
getUpdateInterval in class MonitorProvider<MemoryUsageMonitorProviderCfg>
Returns:
The length of time in milliseconds that should elapse between calls to the updateMonitorData() method.

updateMonitorData

public void updateMonitorData()
Performs any processing periodic processing that may be desired to update the information associated with this monitor. Note that best-effort attempts will be made to ensure that calls to this method come getUpdateInterval milliseconds apart, but no guarantees will be made.

Specified by:
updateMonitorData in class MonitorProvider<MemoryUsageMonitorProviderCfg>

getMonitorData

public java.util.ArrayList<Attribute> getMonitorData()
Retrieves a set of attributes containing monitor data that should be returned to the client if the corresponding monitor entry is requested.

Specified by:
getMonitorData in class MonitorProvider<MemoryUsageMonitorProviderCfg>
Returns:
A set of attributes containing monitor data that should be returned to the client if the corresponding monitor entry is requested.