Top Description Fields Constructors Methods
io.micrometer.jakarta9.instrument.jms

pack-priv Class SessionInvocationHandler

extends Object
implements InvocationHandler
Class Inheritance
All Implemented Interfaces
java.lang.reflect.InvocationHandler
Imports
io.micrometer.observation.ObservationRegistry, jakarta.jms.MessageConsumer, .MessageProducer, .Session, java.lang.reflect.InvocationHandler, .InvocationTargetException, .Method, .Proxy

InvocationHandler used for proxying Jakarta Session.

Its main purpose is to instrument MessageProducer and MessageConsumer instances created by the proxied session.

Author
Brian Clozel

Field Summary

Modifier and TypeField and Description
private final ObservationRegistry
private final Session

Constructor Summary

AccessConstructor and Description
pack-priv
SessionInvocationHandler(Session
the proxied session
session
,
ObservationRegistry
the observation registry used for recording observations
registry
)

Create an invocation handler to be used for proxying a Session.

Method Summary

Modifier and TypeMethod and Description
public Object
invoke(Object
the proxy instance that the method was invoked on
proxy
,
Method
the Method instance corresponding to the interface method invoked on the proxy instance. The declaring class of the Method object will be the interface that the method was declared in, which may be a superinterface of the proxy interface that the proxy class inherits the method through.
method
,
Object[]
an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or null if interface method takes no arguments. Arguments of primitive types are wrapped in instances of the appropriate primitive wrapper class, such as java.lang.Integer or java.lang.Boolean.
args
)

Implements java.lang.reflect.InvocationHandler.invoke.

Processes a method invocation on a proxy instance and returns the result.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

registryback to summary
private final ObservationRegistry registry
targetback to summary
private final Session target

Constructor Detail

SessionInvocationHandlerback to summary
pack-priv SessionInvocationHandler(Session session, ObservationRegistry registry)

Create an invocation handler to be used for proxying a Session.

Parameters
session:Session

the proxied session

registry:ObservationRegistry

the observation registry used for recording observations

Method Detail

invokeback to summary
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable

Implements java.lang.reflect.InvocationHandler.invoke.

Doc from java.lang.reflect.InvocationHandler.invoke.

Processes a method invocation on a proxy instance and returns the result. This method will be invoked on an invocation handler when a method is invoked on a proxy instance that it is associated with.

Parameters
proxy:Object

the proxy instance that the method was invoked on

method:Method

the Method instance corresponding to the interface method invoked on the proxy instance. The declaring class of the Method object will be the interface that the method was declared in, which may be a superinterface of the proxy interface that the proxy class inherits the method through.

args:Object[]

an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or null if interface method takes no arguments. Arguments of primitive types are wrapped in instances of the appropriate primitive wrapper class, such as java.lang.Integer or java.lang.Boolean.

Returns:Object

the value to return from the method invocation on the proxy instance. If the declared return type of the interface method is a primitive type, then the value returned by this method must be an instance of the corresponding primitive wrapper class; otherwise, it must be a type assignable to the declared return type. If the value returned by this method is null and the interface method's return type is primitive, then a NullPointerException will be thrown by the method invocation on the proxy instance. If the value returned by this method is otherwise not compatible with the interface method's declared return type as described above, a ClassCastException will be thrown by the method invocation on the proxy instance.

Annotations
@Override
Exceptions
Throwable:
the exception to throw from the method invocation on the proxy instance. The exception's type must be assignable either to any of the exception types declared in the throws clause of the interface method or to the unchecked exception types java.lang.RuntimeException or java.lang.Error. If a checked exception is thrown by this method that is not assignable to any of the exception types declared in the throws clause of the interface method, then an UndeclaredThrowableException containing the exception that was thrown by this method will be thrown by the method invocation on the proxy instance.