Package com.networknt.aws.lambda.handler.middleware.metrics

Class AbstractMetricsMiddleware

java.lang.Object

com.networknt.aws.lambda.handler.middleware.metrics.AbstractMetricsMiddleware

All Implemented Interfaces:

LambdaHandler, MiddlewareHandler

Direct Known Subclasses:

APMMetricsMiddleware, InfluxMetricsMiddleware

public abstract class AbstractMetricsMiddleware
extends Object
implements MiddlewareHandler

Field Summary

Fields

Modifier and Type	Field	Description
Map<String,String>	commonTags
static com.networknt.metrics.MetricsConfig	config
static final io.dropwizard.metrics.MetricRegistry	registry

Fields inherited from interface com.networknt.aws.lambda.handler.LambdaHandler

DISABLED_LAMBDA_HANDLER_RETURN, SUCCESS_LAMBDA_HANDLER_RETURN

Constructor Summary

Constructors

Constructor	Description
AbstractMetricsMiddleware()

Method Summary

Modifier and Type	Method	Description
void	createJVMMetricsReporter(com.networknt.metrics.TimeSeriesDbSender sender)
void	incCounterForStatusCode(int statusCode, Map<String,String> commonTags, Map<String,String> tags)
void	injectMetrics(LightLambdaExchange exchange, long startTime, String metricsName, String endpoint)	This is the method that is used for all other handlers to inject its metrics info to the real metrics handler impl.
boolean	isEnabled()	Indicate if this handler is enabled or not.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.networknt.aws.lambda.handler.LambdaHandler

disabledMiddlewareStatus, execute, isAsynchronous, isResponseMiddleware, register, reload, successMiddlewareStatus

Methods inherited from interface com.networknt.aws.lambda.handler.MiddlewareHandler

getCachedConfigurations, isAudited, isContinueOnFailure

Field Details

config

public static com.networknt.metrics.MetricsConfig config

registry

public static final io.dropwizard.metrics.MetricRegistry registry

commonTags

public Map<String,String> commonTags

Constructor Details

AbstractMetricsMiddleware

public AbstractMetricsMiddleware()

Method Details

isEnabled

public boolean isEnabled()

Description copied from interface: LambdaHandler

Indicate if this handler is enabled or not.

Specified by:

isEnabled in interface LambdaHandler

Returns:

boolean true if enabled

createJVMMetricsReporter

public void createJVMMetricsReporter(com.networknt.metrics.TimeSeriesDbSender sender)

incCounterForStatusCode

public void incCounterForStatusCode(int statusCode,
 Map<String,String> commonTags,
 Map<String,String> tags)

injectMetrics

public void injectMetrics(LightLambdaExchange exchange,
 long startTime,
 String metricsName,
 String endpoint)

This is the method that is used for all other handlers to inject its metrics info to the real metrics handler impl.

Parameters:

exchange - the LightLambdaExchange that is used to get the auditInfo to collect the metrics tag.

startTime - the start time passed in to calculate the response time.

metricsName - the name of the metrics that is collected.

endpoint - the endpoint that is used to collect the metrics. It is optional and only provided by the external handlers.