Package io.vertx.reactivex.ext.healthchecks

Class HealthCheckHandler

java.lang.Object

io.vertx.reactivex.ext.healthchecks.HealthCheckHandler

All Implemented Interfaces:

Handler<RoutingContext>

public class HealthCheckHandler
extends Object
implements Handler<RoutingContext>

A Vert.x Web handler on which you register health check procedure. It computes the outcome status (`UP` or `DOWN`) . When the handler process a HTTP request, it computes the global outcome and build a HTTP response as follows:

• 204 - status is `UP` but no procedures installed (no payload)
• 200 - status is `UP`, the payload contains the result of the installed procedures
• 503 - status is `DOWN`, the payload contains the result of the installed procedures
• 500 - status is `DOWN`, the payload contains the result of the installed procedures, one of the procedure has failed

NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.

Field Summary

Fields

Modifier and Type	Field	Description
static TypeArg<HealthCheckHandler>	__TYPE_ARG

Constructor Summary

Constructors

Constructor	Description
HealthCheckHandler(HealthCheckHandler delegate)
HealthCheckHandler(Object delegate)

Method Summary

Modifier and Type	Method	Description
static HealthCheckHandler	create(Vertx vertx)	Creates an instance of the default implementation of the HealthCheckHandler.
static HealthCheckHandler	create(Vertx vertx, AuthenticationProvider provider)	Creates an instance of the default implementation of the HealthCheckHandler.
static HealthCheckHandler	createWithHealthChecks(HealthChecks hc)	Creates an instance of the default implementation of the HealthCheckHandler.
static HealthCheckHandler	createWithHealthChecks(HealthChecks hc, AuthenticationProvider provider)	Creates an instance of the default implementation of the HealthCheckHandler.
boolean	equals(Object o)
HealthCheckHandler	getDelegate()
void	handle(RoutingContext event)	Something has happened, so handle it.
int	hashCode()
static HealthCheckHandler	newInstance(HealthCheckHandler arg)
HealthCheckHandler	register(String name, long timeout, Handler<Promise<Status>> procedure)	Registers a health check procedure.
HealthCheckHandler	register(String name, Handler<Promise<Status>> procedure)	Registers a health check procedure.
HealthCheckHandler	resultMapper(io.reactivex.functions.Function<CheckResult,io.reactivex.Single<CheckResult>> resultMapper)	Sets a function which will be invoked before the CheckResult gets written to clients.
HealthCheckHandler	resultMapper(Function<CheckResult,Future<CheckResult>> resultMapper)	Sets a function which will be invoked before the CheckResult gets written to clients.
String	toString()
HealthCheckHandler	unregister(String name)	Unregisters a procedure.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

__TYPE_ARG

public static final TypeArg<HealthCheckHandler> __TYPE_ARG

Constructor Detail

HealthCheckHandler

public HealthCheckHandler(HealthCheckHandler delegate)

HealthCheckHandler

public HealthCheckHandler(Object delegate)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getDelegate

public HealthCheckHandler getDelegate()

handle

public void handle(RoutingContext event)

Something has happened, so handle it.

Specified by:

handle in interface Handler<RoutingContext>

Parameters:

event - the event to handle

create

public static HealthCheckHandler create(Vertx vertx,
                                        AuthenticationProvider provider)

Creates an instance of the default implementation of the HealthCheckHandler. This function creates a new instance of HealthChecks.

Parameters:

vertx - the Vert.x instance, must not be null

provider - the Authentication provider used to authenticate the HTTP request

Returns:

the created instance

create

public static HealthCheckHandler create(Vertx vertx)

Creates an instance of the default implementation of the HealthCheckHandler. This function creates a new instance of HealthChecks.

Parameters:

vertx - the Vert.x instance, must not be null

Returns:

the created instance

createWithHealthChecks

public static HealthCheckHandler createWithHealthChecks(HealthChecks hc,
                                                        AuthenticationProvider provider)

Creates an instance of the default implementation of the HealthCheckHandler.

Parameters:

hc - the health checks object to use, must not be null

provider -

Returns:

the created instance

createWithHealthChecks

public static HealthCheckHandler createWithHealthChecks(HealthChecks hc)

Creates an instance of the default implementation of the HealthCheckHandler.

Parameters:

hc - the health checks object to use

Returns:

the created instance

register

public HealthCheckHandler register(String name,
                                   Handler<Promise<Status>> procedure)

Registers a health check procedure.

The procedure is a taking a of Status as parameter. Procedures are asynchronous, and must complete or fail the given . If the future object is failed, the procedure outcome is considered as `DOWN`. If the future is completed without any object, the procedure outcome is considered as `UP`. If the future is completed with a (not-null) Status, the procedure outcome is the received status.

This method uses a 1s timeout. To configure the timeout use register(java.lang.String, io.vertx.core.Handler<io.vertx.reactivex.core.Promise<io.vertx.ext.healthchecks.Status>>).

Parameters:

name - the name of the procedure, must not be null or empty

procedure - the procedure, must not be null

Returns:

the current HealthCheckHandler

register

public HealthCheckHandler register(String name,
                                   long timeout,
                                   Handler<Promise<Status>> procedure)

Registers a health check procedure.

The procedure is a taking a of Status as parameter. Procedures are asynchronous, and must complete or fail the given . If the future object is failed, the procedure outcome is considered as `DOWN`. If the future is completed without any object, the procedure outcome is considered as `UP`. If the future is completed with a (not-null) Status, the procedure outcome is the received status.

Parameters:

name - the name of the procedure, must not be null or empty

timeout - the procedure timeout

procedure - the procedure, must not be null

Returns:

the current HealthCheckHandler

unregister

public HealthCheckHandler unregister(String name)

Unregisters a procedure.

Parameters:

name - the name of the procedure

Returns:

the current HealthCheckHandler

resultMapper

public HealthCheckHandler resultMapper(Function<CheckResult,Future<CheckResult>> resultMapper)

Sets a function which will be invoked before the CheckResult gets written to clients.

Parameters:

resultMapper - the used to manipulate the CheckResult, null means no result mapper function enabled.

Returns:

the current HealthCheckHandler

resultMapper

public HealthCheckHandler resultMapper(io.reactivex.functions.Function<CheckResult,io.reactivex.Single<CheckResult>> resultMapper)

Sets a function which will be invoked before the CheckResult gets written to clients.

Parameters:

resultMapper - the used to manipulate the CheckResult, null means no result mapper function enabled.

Returns:

the current HealthCheckHandler

newInstance

public static HealthCheckHandler newInstance(HealthCheckHandler arg)