Package org.opennms.netmgt.config

Class WmiDataCollectionConfigFactory

java.lang.Object

org.opennms.netmgt.config.WmiDataCollectionConfigFactory

public class WmiDataCollectionConfigFactory
extends Object

This class loads and presents the WMI data collection configuration file for use with the WMI performance collection classes.

Author:

Matt Raykowski, OpenNMS

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	initialized	Boolean indicating if the init() method has been called.
protected static long	m_lastModified	Timestamp of the WMI collection config, used to know when to reload from disk.

Constructor Summary

Constructors

Constructor	Description
WmiDataCollectionConfigFactory(InputStream is)	Constructor for WmiDataCollectionConfigFactory.
WmiDataCollectionConfigFactory(String configFile)	Constructor for WmiDataCollectionConfigFactory.

Method Summary

Modifier and Type	Method	Description
static WmiDatacollectionConfig	getConfig()	getConfig
static WmiDataCollectionConfigFactory	getInstance()	Singleton static call to get the only instance that should exist
List<String>	getRRAList(String cName)	getRRAList
String	getRrdPath()	getRrdPath
RrdRepository	getRrdRepository(String collectionName)	getRrdRepository
int	getStep(String cName)	getStep
WmiCollection	getWmiCollection(String collectionName)	getWmiCollection
static void	init()	Be sure to call this method before calling getInstance().
void	reload()	reload
static void	setConfig(WmiDatacollectionConfig m_config)	setConfig
static void	setInstance(WmiDataCollectionConfigFactory instance)	setInstance
protected void	updateFromFile()	Reload the wmi-datacollection-config.xml file if it has been changed since we last read it.

Methods inherited from class java.lang.Object

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

Field Detail

initialized

protected boolean initialized

Boolean indicating if the init() method has been called.

m_lastModified

protected static long m_lastModified

Timestamp of the WMI collection config, used to know when to reload from disk.

Constructor Detail

WmiDataCollectionConfigFactory

public WmiDataCollectionConfigFactory(String configFile)
                               throws IOException

Constructor for WmiDataCollectionConfigFactory.

Parameters:

configFile - a String object.

Throws:

IOException - if any.

WmiDataCollectionConfigFactory

public WmiDataCollectionConfigFactory(InputStream is)
                               throws IOException

Constructor for WmiDataCollectionConfigFactory.

Parameters:

is - a InputStream object.

Throws:

IOException

Method Detail

init

public static void init()
                 throws IOException,
                        FileNotFoundException

Be sure to call this method before calling getInstance().

Throws:

IOException - if any.

FileNotFoundException - if any.

getInstance

public static WmiDataCollectionConfigFactory getInstance()

Singleton static call to get the only instance that should exist

Returns:

the single factory instance

Throws:

IllegalStateException - if init has not been called

setInstance

public static void setInstance(WmiDataCollectionConfigFactory instance)

setInstance

Parameters:

instance - a WmiDataCollectionConfigFactory object.

reload

public void reload()
            throws IOException,
                   FileNotFoundException

reload

Throws:

IOException - if any.

FileNotFoundException - if any.

updateFromFile

protected void updateFromFile()
                       throws IOException

Reload the wmi-datacollection-config.xml file if it has been changed since we last read it.

Throws:

IOException - if any.

getConfig

public static WmiDatacollectionConfig getConfig()

getConfig

Returns:

a WmiDatacollectionConfig object.

setConfig

public static void setConfig(WmiDatacollectionConfig m_config)

setConfig

Parameters:

m_config - a WmiDatacollectionConfig object.

getWmiCollection

public WmiCollection getWmiCollection(String collectionName)

getWmiCollection

Parameters:

collectionName - a String object.

Returns:

a WmiCollection object.

getRrdRepository

public RrdRepository getRrdRepository(String collectionName)

getRrdRepository

Parameters:

collectionName - a String object.

Returns:

a RrdRepository object.

getStep

public int getStep(String cName)

getStep

Parameters:

cName - a String object.

Returns:

a int.

getRRAList

public List<String> getRRAList(String cName)

getRRAList

Parameters:

cName - a String object.

Returns:

a List object.

getRrdPath

public String getRrdPath()

getRrdPath

Returns:

a String object.