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org.opennms.netmgt.poller
Class Poller  

java.lang.Object
  org.opennms.netmgt.poller.Poller

All Implemented Interfaces:

org.opennms.core.fiber.Fiber, org.opennms.core.fiber.PausableFiber

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public final class Poller

extends java.lang.Object

implements org.opennms.core.fiber.PausableFiber

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Field Summary
private static java.lang.String	LOG4J_CATEGORY
private  java.util.Map	m_pollableNodes           Map of 'PollableNode' objects keyed by nodeId
private  java.util.List	m_pollableServices           List of all PollableService objects.
private  BroadcastEventProcessor	m_receiver
private  org.opennms.netmgt.scheduler.Scheduler	m_scheduler
private static java.util.Map	m_serviceIds           Holds map of service names to service identifiers
private static Poller	m_singleton
private  int	m_status
private static java.util.Map	m_svcMonitors           Map of all available 'ServiceMonitor' objects indexed by service name
private static java.lang.String	SQL_RETRIEVE_INTERFACES
private static java.lang.String	SQL_RETRIEVE_SERVICE_IDS
private static java.lang.String	SQL_RETRIEVE_SERVICE_STATUS
private static int	WAIT_FOREVER           Integer constant for passing in to PollableNode.getNodeLock() method in order to indicate that the method should block until node lock is available.

 

Fields inherited from interface org.opennms.core.fiber.PausableFiber

PAUSE_PENDING, PAUSED, RESUME_PENDING

 

Fields inherited from interface org.opennms.core.fiber.Fiber

RUNNING, START_PENDING, STARTING, STATUS_NAMES, STOP_PENDING, STOPPED

 

Constructor Summary
private	Poller()

 

Method Summary
void	addNode(PollableNode pNode)
static Poller	getInstance()
java.lang.String	getName()           This method is used to return the name of the Fiber.
PollableNode	getNode(int nodeId)
java.util.List	getPollableServiceList()
org.opennms.netmgt.scheduler.Scheduler	getScheduler()
static java.util.Date	getServiceLostDate(java.sql.Connection dbConn, int nodeId, java.lang.String ipAddr, java.lang.String svcName)           Determines the last known status of a ipaddr/service pair based on outage information from the 'outages' table and if the last known status is UNAVAILABLE returns a date object representing when the service was lost.
ServiceMonitor	getServiceMonitor(java.lang.String svcName)
int	getStatus()           This method is used to get the current status of the Fiber.
void	init()
void	pause()           This method is used to suspend a currently running Fiber.
void	removeNode(int nodeId)
void	resume()           This method is used to resume a suspeneded Fiber.
private  void	scheduleExistingInterfaces()
void	start()           This method is used to start the initilization process of the Fiber, which should eventually transition to a RUNNING status.
void	stop()           This method is used to stop a currently running Fiber.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

LOG4J_CATEGORY

private static final java.lang.String LOG4J_CATEGORY

See Also:

Constant Field Values

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SQL_RETRIEVE_INTERFACES

private static final java.lang.String SQL_RETRIEVE_INTERFACES

See Also:

Constant Field Values

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SQL_RETRIEVE_SERVICE_IDS

private static final java.lang.String SQL_RETRIEVE_SERVICE_IDS

See Also:

Constant Field Values

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SQL_RETRIEVE_SERVICE_STATUS

private static final java.lang.String SQL_RETRIEVE_SERVICE_STATUS

See Also:

Constant Field Values

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WAIT_FOREVER

private static int WAIT_FOREVER

Integer constant for passing in to PollableNode.getNodeLock() method in order to indicate that the method should block until node lock is available.

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m_singleton

private static final Poller m_singleton

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m_serviceIds

private static final java.util.Map m_serviceIds

Holds map of service names to service identifiers

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m_pollableServices

private java.util.List m_pollableServices

List of all PollableService objects.

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m_scheduler

private org.opennms.netmgt.scheduler.Scheduler m_scheduler

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m_status

private int m_status

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m_receiver

private BroadcastEventProcessor m_receiver

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m_pollableNodes

private java.util.Map m_pollableNodes

Map of 'PollableNode' objects keyed by nodeId

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m_svcMonitors

private static java.util.Map m_svcMonitors

Map of all available 'ServiceMonitor' objects indexed by service name

Constructor Detail

Poller

private Poller()

Method Detail

init

public void init()

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start

public void start()

Description copied from interface: org.opennms.core.fiber.Fiber

This method is used to start the initilization process of the Fiber, which should eventually transition to a RUNNING status.

Specified by:

start in interface org.opennms.core.fiber.Fiber

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stop

public void stop()

Description copied from interface: org.opennms.core.fiber.Fiber

This method is used to stop a currently running Fiber. Once invoked the Fiber should begin it's shutdown process. Depending on the implementation, this method may block until the Fiber terminates.

Specified by:

stop in interface org.opennms.core.fiber.Fiber

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pause

public void pause()

Description copied from interface: org.opennms.core.fiber.PausableFiber

This method is used to suspend a currently running Fiber. When invoked the Fiber will begin the transition to a PAUSED status after changing its internal state, if applicable.

Specified by:

pause in interface org.opennms.core.fiber.PausableFiber

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resume

public void resume()

Description copied from interface: org.opennms.core.fiber.PausableFiber

This method is used to resume a suspeneded Fiber. If the thread is already running then this method should have no effect on the current Fiber.

Specified by:

resume in interface org.opennms.core.fiber.PausableFiber

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getStatus

public int getStatus()

Description copied from interface: org.opennms.core.fiber.Fiber

This method is used to get the current status of the Fiber. The status of the fiber should be one of the predefined constants of the Fiber interface, or from one of the derived interfaces.

Specified by:

getStatus in interface org.opennms.core.fiber.Fiber

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getName

public java.lang.String getName()

Description copied from interface: org.opennms.core.fiber.Fiber

This method is used to return the name of the Fiber. The name of the instance is defined by the implementor, but it should be realitively unique when possible.

Specified by:

getName in interface org.opennms.core.fiber.Fiber

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getInstance

public static Poller getInstance()

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getScheduler

public org.opennms.netmgt.scheduler.Scheduler getScheduler()

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getServiceMonitor

public ServiceMonitor getServiceMonitor(java.lang.String svcName)

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getPollableServiceList

public java.util.List getPollableServiceList()

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getNode

public PollableNode getNode(int nodeId)

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addNode

public void addNode(PollableNode pNode)

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removeNode

public void removeNode(int nodeId)

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scheduleExistingInterfaces

private void scheduleExistingInterfaces()
                                 throws java.sql.SQLException

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getServiceLostDate

public static final java.util.Date getServiceLostDate(java.sql.Connection dbConn,
                                                      int nodeId,
                                                      java.lang.String ipAddr,
                                                      java.lang.String svcName)

Determines the last known status of a ipaddr/service pair based on outage information from the 'outages' table and if the last known status is UNAVAILABLE returns a date object representing when the service was lost. If last known status is AVAILABLE null is returned.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> opennms >> netmgt >> [ poller overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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