org.opennms.netmgt.threshd
Class SnmpThresholder

java.lang.Object
  org.opennms.netmgt.threshd.SnmpThresholder

All Implemented Interfaces:

ServiceThresholder

final class SnmpThresholder

extends java.lang.Object

implements ServiceThresholder

The SnmpThresholder class ...

Author:

Mike Davidson, OpenNMS

Field Summary

(package private) static java.lang.String	ALL_IF_THRESHOLD_MAP_KEY We must maintain a map of interface level ThresholdEntity objects on a per interface basis in order to maintain separate exceeded counts and the like for each of a node's interfaces.
(package private) static java.lang.String	BASE_IF_THRESHOLD_MAP_KEY Interface attribute key used to store a map of interface level ThresholdEntity objects keyed by datasource name.
private static int	DEFAULT_INTERVAL Default thresholding interval (in milliseconds).
private java.lang.String	m_host Local host name
(package private) static java.lang.String	NODE_ID_KEY Interface attribute key used to store the interface's node id
(package private) static java.lang.String	NODE_THRESHOLD_MAP_KEY Interface attribute key used to store a map of node level ThresholdEntity objects keyed by datasource name.
(package private) static java.lang.String	RRD_REPOSITORY_KEY Interface attribute key used to store the interface's node id
private static java.lang.String	SERVICE_NAME Name of monitored service.
private static java.lang.String	SQL_GET_NODEID SQL statement to retrieve interface's 'ipinterface' table information.

Fields inherited from interface org.opennms.netmgt.threshd.ServiceThresholder

statusType, THRESHOLDING_FAILED, THRESHOLDING_SUCCEEDED, THRESHOLDING_UNKNOWN

Constructor Summary

(package private)

SnmpThresholder()

Method Summary

int	check(NetworkInterface iface, EventProxy eproxy, java.util.Map parameters) Perform threshold checking.
private void	checkIfDir(java.io.File directory, java.lang.Integer nodeId, java.net.InetAddress primary, int interval, java.util.Date date, java.util.Map baseIfThresholdMap, java.util.Map allIfThresholdMap, Events events) Performs threshold checking on an SNMP RRD interface directory.
private void	checkNodeDir(java.io.File directory, java.lang.Integer nodeId, java.net.InetAddress primary, int interval, java.util.Date date, java.util.Map thresholdMap, Events events) Performs threshold checking on an SNMP RRD node directory.
private Event	createEvent(java.lang.Integer nodeId, java.net.InetAddress primary, java.util.Map ifDataMap, double dsValue, Threshold threshold, java.lang.String uei, java.util.Date date) Creates a new threshold event from the specified parms.
void	initialize(java.util.Map parameters) Initialize the service thresholder.
void	initialize(NetworkInterface iface, java.util.Map parameters) Responsible for performing all necessary initialization for the specified interface in preparation for thresholding.
void	release() Responsible for freeing up any resources held by the thresholder.
void	release(NetworkInterface iface) Responsible for releasing any resources associated with the specified interface.
java.lang.String	serviceName() Returns the name of the service that the plug-in collects ("SNMP").

Methods inherited from class java.lang.Object

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

Field Detail

SQL_GET_NODEID

private static final java.lang.String SQL_GET_NODEID

SQL statement to retrieve interface's 'ipinterface' table information.

See Also:

Constant Field Values

SERVICE_NAME

private static final java.lang.String SERVICE_NAME

Name of monitored service.

See Also:

Constant Field Values

DEFAULT_INTERVAL

private static final int DEFAULT_INTERVAL

Default thresholding interval (in milliseconds).

See Also:

Constant Field Values

NODE_ID_KEY

static final java.lang.String NODE_ID_KEY

Interface attribute key used to store the interface's node id

See Also:

Constant Field Values

RRD_REPOSITORY_KEY

static final java.lang.String RRD_REPOSITORY_KEY

Interface attribute key used to store the interface's node id

See Also:

Constant Field Values

NODE_THRESHOLD_MAP_KEY

static final java.lang.String NODE_THRESHOLD_MAP_KEY

Interface attribute key used to store a map of node level ThresholdEntity objects keyed by datasource name.

See Also:

Constant Field Values

BASE_IF_THRESHOLD_MAP_KEY

static final java.lang.String BASE_IF_THRESHOLD_MAP_KEY

Interface attribute key used to store a map of interface level ThresholdEntity objects keyed by datasource name.

See Also:

Constant Field Values

ALL_IF_THRESHOLD_MAP_KEY

static final java.lang.String ALL_IF_THRESHOLD_MAP_KEY

We must maintain a map of interface level ThresholdEntity objects on a per interface basis in order to maintain separate exceeded counts and the like for each of a node's interfaces. This interface attribute key used to store a map of interface level ThresholdEntity object maps keyed by ifLabel. So it wil refer to a map of maps indexed by ifLabel.

See Also:

Constant Field Values

m_host

private java.lang.String m_host

Local host name

Constructor Detail

SnmpThresholder

SnmpThresholder()

Method Detail

serviceName

public java.lang.String serviceName()

Returns the name of the service that the plug-in collects ("SNMP").

Returns:

The service that the plug-in collects.

initialize

public void initialize(java.util.Map parameters)

Initialize the service thresholder.

Specified by:

initialize in interface ServiceThresholder

Parameters:

parameters - Not currently used.

Throws:

java.lang.RuntimeException - Thrown if an unrecoverable error occurs that prevents the plug-in from functioning.

release

public void release()

Responsible for freeing up any resources held by the thresholder.

Specified by:

release in interface ServiceThresholder

initialize

public void initialize(NetworkInterface iface,
                       java.util.Map parameters)

Responsible for performing all necessary initialization for the specified interface in preparation for thresholding.

Specified by:

initialize in interface ServiceThresholder

Parameters:

iface - Network interface to be prepped for thresholding.

parameters - Key/value pairs associated with the package to which the interface belongs..

release

public void release(NetworkInterface iface)

Responsible for releasing any resources associated with the specified interface.

Specified by:

release in interface ServiceThresholder

Parameters:

iface - Network interface to be released.

check

public int check(NetworkInterface iface,
                 EventProxy eproxy,
                 java.util.Map parameters)

Perform threshold checking.

Specified by:

check in interface ServiceThresholder

Parameters:

iface - Network interface to be data collected.

eproxy - Eventy proxy for sending events.

parameters - Key/value pairs from the package to which the interface belongs.

checkNodeDir

private void checkNodeDir(java.io.File directory,
                          java.lang.Integer nodeId,
                          java.net.InetAddress primary,
                          int interval,
                          java.util.Date date,
                          java.util.Map thresholdMap,
                          Events events)
                   throws java.lang.IllegalArgumentException

Performs threshold checking on an SNMP RRD node directory.

Parameters:

directory - RRD repository directory

nodeId - Node identifier

primary - Primary SNMP interface address

interval - Configured thresholding interval

date - Source for timestamp to be used for all generated events

thresholdMap - Map of node level ThresholdEntity objects keyed by datasource name.

events - Castor events object containing any events to be generated as a result of threshold checking.

Throws:

java.lang.IllegalArgumentException - if path parameter is not a directory.

checkIfDir

private void checkIfDir(java.io.File directory,
                        java.lang.Integer nodeId,
                        java.net.InetAddress primary,
                        int interval,
                        java.util.Date date,
                        java.util.Map baseIfThresholdMap,
                        java.util.Map allIfThresholdMap,
                        Events events)
                 throws java.lang.IllegalArgumentException

Performs threshold checking on an SNMP RRD interface directory.

Parameters:

directory - RRD repository directory

nodeId - Node identifier

primary - Primary SNMP interface address

interval - Configured thresholding interval

date - Source for timestamp to be used for all generated events

baseIfThresholdMap - Map of configured interface level ThresholdEntity objects keyed by datasource name.

allIfThresholdMap - Map of threshold maps indexed by ifLabel

events - Castor events object containing any events to be generated as a result of threshold checking.

Throws:

java.lang.IllegalArgumentException - if path parameter is not a directory.

createEvent

private Event createEvent(java.lang.Integer nodeId,
                          java.net.InetAddress primary,
                          java.util.Map ifDataMap,
                          double dsValue,
                          Threshold threshold,
                          java.lang.String uei,
                          java.util.Date date)

Creates a new threshold event from the specified parms.

Parameters:

nodeId - node identifier of the affected node

primary - IP address of the affected primary SNMP interface

ifDataMap - Map of this node's interface information

dsValue - Data source value which triggered the threshold event

threshold - Configured threshold

uei - Event identifier

date - source of event's timestamp

Returns:

new threshold event to be sent to Eventd