org.objectweb.cjdbc.controller.monitoring
Class SQLMonitoring

java.lang.Object
  org.objectweb.cjdbc.controller.monitoring.Monitoring
      org.objectweb.cjdbc.controller.monitoring.SQLMonitoring

All Implemented Interfaces:

XmlComponent

public class SQLMonitoring

extends Monitoring

This class implements a SQL monitoring module.

Version:

1.0

Author:

Emmanuel Cecchet

Field Summary

private boolean	defaultRule
private static Trace	logger
private java.util.ArrayList	ruleList
private java.util.Hashtable	statList

Fields inherited from class org.objectweb.cjdbc.controller.monitoring.Monitoring

active

Fields inherited from interface org.objectweb.cjdbc.common.xml.XmlComponent

DOCTYPE_DB, XML_VERSION

Constructor Summary

SQLMonitoring(java.lang.String vdbName)
Create a SQLMonitoring object.

Method Summary

void	addRule(SQLMonitoringRule rule) Add a rule to the list.
void	cleanStats() Clean the content of statistics, to avoid memory problems.
void	dumpAllStatsInformation() Dump all stats using the current logger (INFO level).
java.lang.String[][]	getAllStatsInformation() Return all stats information in the form of a String
boolean	getDefaultRule() Get the default monitoring rule
java.util.ArrayList	getRuleList()
Stats	getStatForRequest(AbstractRequest request) Retrieve the stat corresponding to a request and create it if it does not exist.
java.lang.String	getXmlImpl() Get implementation information
void	logCacheHit(AbstractRequest request) Log a cache hit for the given request.
void	logError(AbstractRequest request) Log an error for the given request.
void	logRequestTime(AbstractRequest request, long time) Log the time elapsed to execute the given request.
private java.lang.String	monitorRequestRule(AbstractRequest request) Check the rule list to check of this request should be monitored or not.
void	resetRequestStat(AbstractRequest request) Reset the stats associated to a request.
void	setDefaultRule(boolean monitoring) Defines the default rule

Methods inherited from class org.objectweb.cjdbc.controller.monitoring.Monitoring

getXml, isActive, setActive

Methods inherited from class java.lang.Object

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

Field Detail

statList

private java.util.Hashtable statList

ruleList

private java.util.ArrayList ruleList

defaultRule

private boolean defaultRule

logger

private static Trace logger

Constructor Detail

SQLMonitoring

public SQLMonitoring(java.lang.String vdbName)

Create a SQLMonitoring object.

Parameters:

vdbName - name of the virtual database to be used by the logger

Method Detail

cleanStats

public void cleanStats()

Description copied from class: Monitoring

Clean the content of statistics, to avoid memory problems.

Specified by:

cleanStats in class Monitoring

See Also:

Monitoring.cleanStats()

logRequestTime

public final void logRequestTime(AbstractRequest request,
                                 long time)

Log the time elapsed to execute the given request.

Parameters:

request - the request executed

time - time elapsed to execute this request

logError

public final void logError(AbstractRequest request)

Log an error for the given request.

Parameters:

request - the request that failed to execute

logCacheHit

public final void logCacheHit(AbstractRequest request)

Log a cache hit for the given request.

Parameters:

request - the request that failed to execute

resetRequestStat

public final void resetRequestStat(AbstractRequest request)

Reset the stats associated to a request.

Parameters:

request - the request to reset

getStatForRequest

public final Stats getStatForRequest(AbstractRequest request)

Retrieve the stat corresponding to a request and create it if it does not exist.

Parameters:

request - the request to look for

Returns:

corresponding stat or null if a rule does not authorize this request to be monitored

getAllStatsInformation

public java.lang.String[][] getAllStatsInformation()

Return all stats information in the form of a String

Specified by:

getAllStatsInformation in class Monitoring

Returns:

stats information

dumpAllStatsInformation

public void dumpAllStatsInformation()

Dump all stats using the current logger (INFO level).

Specified by:

dumpAllStatsInformation in class Monitoring

getDefaultRule

public boolean getDefaultRule()

Get the default monitoring rule

Returns:

true if default is monitoring enabled

setDefaultRule

public void setDefaultRule(boolean monitoring)

Defines the default rule

Parameters:

monitoring - true if on, false is off

addRule

public void addRule(SQLMonitoringRule rule)

Add a rule to the list.

Parameters:

rule - the rule to add

monitorRequestRule

private java.lang.String monitorRequestRule(AbstractRequest request)

Check the rule list to check of this request should be monitored or not.

Parameters:

request - the query to look for

Returns:

the SQL query to monitor or null if monitoring is off for this request

getRuleList

public java.util.ArrayList getRuleList()

Returns:

Returns the ruleList.

getXmlImpl

public java.lang.String getXmlImpl()

Description copied from class: Monitoring

Get implementation information

Specified by:

getXmlImpl in class Monitoring

See Also:

XmlComponent.getXml()