org.opennms.netmgt.poller.monitors

Class HttpPostMonitor

java.lang.Object

org.opennms.netmgt.poller.support.AbstractServiceMonitor

org.opennms.netmgt.poller.monitors.support.ParameterSubstitutingMonitor

org.opennms.netmgt.poller.monitors.HttpPostMonitor

All Implemented Interfaces:

ServiceMonitor

public final class HttpPostMonitor
extends ParameterSubstitutingMonitor

This class is designed to be used by the service poller framework to test the availability of a url by posting a generic payload and evaulating the http response code and banner. The class implements the ServiceMonitor interface that allows it to be used along with other plug-ins by the service poller framework.

Author:

Jeff Gehlbach, Chris Liles, OpenNMS

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_CHARSET
static String	DEFAULT_MIMETYPE
static String	DEFAULT_SCHEME
static boolean	DEFAULT_SSLFILTER
static String	DEFAULT_URI
static String	PARAMETER_BANNER
static String	PARAMETER_CHARSET
static String	PARAMETER_MIMETYPE
static String	PARAMETER_PASSWORD
static String	PARAMETER_PAYLOAD
static String	PARAMETER_PORT
static String	PARAMETER_SCHEME
static String	PARAMETER_SSLFILTER
static String	PARAMETER_URI
static String	PARAMETER_USERNAME

Constructor Summary

Constructors

Constructor and Description
HttpPostMonitor()

Method Summary

Modifier and Type	Method and Description
PollStatus	poll(MonitoredService svc, Map<String,Object> parameters) This method is the heart of the plug-in monitor.

Methods inherited from class org.opennms.netmgt.poller.monitors.support.ParameterSubstitutingMonitor

getRuntimeAttributes, getSubstitutedParameters, parseString, resolveKeyedString

Methods inherited from class org.opennms.netmgt.poller.support.AbstractServiceMonitor

getEffectiveLocation, getKeyedBoolean, getKeyedInstance, getKeyedInteger, getKeyedLong, getKeyedObject, getKeyedString, getServiceProperties

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MIMETYPE

public static final String DEFAULT_MIMETYPE

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Constant Field Values

DEFAULT_CHARSET

public static final String DEFAULT_CHARSET

DEFAULT_URI

public static final String DEFAULT_URI

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Constant Field Values

DEFAULT_SCHEME

public static final String DEFAULT_SCHEME

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Constant Field Values

DEFAULT_SSLFILTER

public static final boolean DEFAULT_SSLFILTER

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Constant Field Values

PARAMETER_SCHEME

public static final String PARAMETER_SCHEME

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Constant Field Values

PARAMETER_PORT

public static final String PARAMETER_PORT

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Constant Field Values

PARAMETER_URI

public static final String PARAMETER_URI

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Constant Field Values

PARAMETER_PAYLOAD

public static final String PARAMETER_PAYLOAD

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Constant Field Values

PARAMETER_MIMETYPE

public static final String PARAMETER_MIMETYPE

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Constant Field Values

PARAMETER_CHARSET

public static final String PARAMETER_CHARSET

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Constant Field Values

PARAMETER_BANNER

public static final String PARAMETER_BANNER

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Constant Field Values

PARAMETER_SSLFILTER

public static final String PARAMETER_SSLFILTER

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Constant Field Values

PARAMETER_USERNAME

public static final String PARAMETER_USERNAME

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Constant Field Values

PARAMETER_PASSWORD

public static final String PARAMETER_PASSWORD

See Also:

Constant Field Values

Constructor Detail

HttpPostMonitor

public HttpPostMonitor()

Method Detail

poll

public PollStatus poll(MonitoredService svc,
                       Map<String,Object> parameters)

This method is the heart of the plug-in monitor. Each time an interface requires a check to be performed as defined by the scheduler the poll method is invoked. The poll is passed the service to check.

By default when the status transition from up to down or vice versa the framework will generate an event. Additionally, if the polling interval changes due to an extended unavailability, the framework will generate an additional down event. The plug-in can suppress the generation of the default events by setting the suppress event bit in the returned integer.

NOTE: This method may be invoked on a Minion, in which case certain bean and facilities will not be available. If any state related information is required such as agent related configuration, it should retrieved by the ServiceMonitor.getRuntimeAttributes(MonitoredService, Map).

Poll the specified address for service availability. During the poll an attempt is made to execute the named method (with optional input) connect on the specified port. If the exec on request is successful, the banner line generated by the interface is parsed and if the banner text indicates that we are talking to Provided that the interface's response is valid we set the service status to SERVICE_AVAILABLE and return.

Parameters:

svc - Includes details about to the service being monitored.

parameters - Includes the service parameters defined in poller-configuration.xml and those returned by ServiceMonitor.getRuntimeAttributes(MonitoredService, Map).

Returns:

The availability of the interface and if a transition event should be suppressed.

See Also:

PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE, PollStatus.SERVICE_AVAILABLE, PollStatus.SERVICE_UNAVAILABLE