net.centro.rtb.monitoringcenter.metrics.tomcat

Interface TomcatConnectorStatus

public interface TomcatConnectorStatus

This interface reflects the current readings for a Tomcat's connector. The values are collected from Tomcat's ThreadPool and GlobalRequestProcessor JMX beans. All metrics exposed by this class are immutable by the client.

Method Summary

Modifier and Type	Method and Description
com.codahale.metrics.Gauge<Long>	getActiveConnectionsGauge() Retrieves the number of active connections.
com.codahale.metrics.Gauge<Integer>	getBusyThreadsGauge() Retrieves the number of busy threads in the thread pool utilized by the connector.
com.codahale.metrics.Gauge<Integer>	getCurrentPoolSizeGauge() Retrieves the current number of threads in the thread pool utilized by the connector.
com.codahale.metrics.Gauge<Integer>	getErrorsGauge() Retrieves the number of error responses returned by this connector.
com.codahale.metrics.Gauge<Integer>	getMaxConnectionsGauge() Retrieves the maximum number of connections.
com.codahale.metrics.Gauge<Integer>	getMaxPoolSizeGauge() Retrieves the maximum size of the thread pool utilized by the connector.
String	getName() Retrieves the name of the connector.
Integer	getPort() Retrieves the port associated with the connector.
com.codahale.metrics.Gauge<Integer>	getQpsGauge() Retrieves the current request rate per second (QPS).
com.codahale.metrics.Gauge<Long>	getReceivedBytesGauge() Retrieves the number of bytes received by this connector.
com.codahale.metrics.Gauge<Long>	getSentBytesGauge() Retrieves the number of bytes sent by this connector.
com.codahale.metrics.Gauge<Integer>	getTotalRequestsGauge() Retrieves the total number of requests processed by this connector.
boolean	isAjp() Indicates whether this connector is an AJP connector or not.
boolean	isInternalPort() Indicates whether this connector is deployed under internal port (a private port) or not.
boolean	isSecure() Indicates whether this connector is secure (SSL/TLS) or not.

Method Detail

getName

String getName()

Retrieves the name of the connector. For instance, "http-apr-80".

Returns:

the name of the connector.

getPort

Integer getPort()

Retrieves the port associated with the connector.

Returns:

the port associated with the connector; null if there was a problem retrieving the value via JMX.

isInternalPort

boolean isInternalPort()

Indicates whether this connector is deployed under internal port (a private port) or not.

Returns:

true if this connector is deployed under internal port; false otherwise or if unknown.

isSecure

boolean isSecure()

Indicates whether this connector is secure (SSL/TLS) or not.

Returns:

true if this connector is secure (SSL/TLS); false otherwise or if unknown.

isAjp

boolean isAjp()

Indicates whether this connector is an AJP connector or not.

Returns:

true if this connector is an AJP connector; false otherwise or if unknown.

getCurrentPoolSizeGauge

com.codahale.metrics.Gauge<Integer> getCurrentPoolSizeGauge()

Retrieves the current number of threads in the thread pool utilized by the connector.

Returns:

a gauge holding the current number of threads in the thread pool utilized by the connector; null if not available.

getMaxPoolSizeGauge

com.codahale.metrics.Gauge<Integer> getMaxPoolSizeGauge()

Retrieves the maximum size of the thread pool utilized by the connector.

Returns:

a gauge holding the maximum size of the thread pool utilized by the connector; null if not available.

getBusyThreadsGauge

com.codahale.metrics.Gauge<Integer> getBusyThreadsGauge()

Retrieves the number of busy threads in the thread pool utilized by the connector.

Returns:

a gauge holding the number of busy threads in the thread pool utilized by the connector; null if not available.

getActiveConnectionsGauge

com.codahale.metrics.Gauge<Long> getActiveConnectionsGauge()

Retrieves the number of active connections.

Returns:

a gauge holding the number of active connections; null if not available.

getMaxConnectionsGauge

com.codahale.metrics.Gauge<Integer> getMaxConnectionsGauge()

Retrieves the maximum number of connections.

Returns:

a gauge holding the maximum number of connections; null if not available.

getTotalRequestsGauge

com.codahale.metrics.Gauge<Integer> getTotalRequestsGauge()

Retrieves the total number of requests processed by this connector.

Returns:

a gauge holding the total number of requests processed by this connector; null if not available.

getErrorsGauge

com.codahale.metrics.Gauge<Integer> getErrorsGauge()

Retrieves the number of error responses returned by this connector. An error response is defined as a response with a [400-599] HTTP status code.

Returns:

a gauge holding the number of error responses returned by this connector; null if not available.

getQpsGauge

com.codahale.metrics.Gauge<Integer> getQpsGauge()

Retrieves the current request rate per second (QPS).

Returns:

a gauge holding the current request rate per second (QPS); null if not available.

getReceivedBytesGauge

com.codahale.metrics.Gauge<Long> getReceivedBytesGauge()

Retrieves the number of bytes received by this connector.

Returns:

a gauge holding the number of bytes received by this connector; null if not available.

getSentBytesGauge

com.codahale.metrics.Gauge<Long> getSentBytesGauge()

Retrieves the number of bytes sent by this connector.

Returns:

a gauge holding the number of bytes sent by this connector; null if not available.