Package net.tangly.commons.lang.exceptions

Class ExceptionMapper<H>

java.lang.Object

net.tangly.commons.lang.exceptions.ExceptionMapper<H>

Type Parameters:

H - handler used to process the exception

public class ExceptionMapper<H>
extends Object

The exception mapper processes an exception and executes associated instructions with the helper. For example, an HTTP error code and answer can be generated based on the kind of the exception.

Constructor Summary

Constructors

Constructor	Description
ExceptionMapper()

Method Summary

Modifier and Type	Method	Description
boolean	isRegistered(Class<? extends Exception> clazz)	Return true if the exception class is registered.
void	process(H handler, @NotNull Exception exception)	Process the exception by executing the associated functor.
void	register(@NotNull Class<? extends Exception> clazz, @NotNull BiConsumer<H,Exception> functor)	Register the class exception with the associated consumer.
void	unregister(Class<? extends Exception> clazz)	The class exception cannot be unregistered to insure we are always handling any exception.

Methods inherited from class java.lang.Object

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

Constructor Details

ExceptionMapper

public ExceptionMapper()

Method Details

register

public void register(@NotNull
 @NotNull Class<? extends Exception> clazz,
 @NotNull
 @NotNull BiConsumer<H,Exception> functor)

Register the class exception with the associated consumer.

Parameters:

clazz - class of the exception top bind

functor - consumer used to process the exception

unregister

public void unregister(Class<? extends Exception> clazz)

The class exception cannot be unregistered to insure we are always handling any exception. If specific behavior is requested, you can overwrite it using bind method.

Parameters:

clazz - class instance to unregister

isRegistered

public boolean isRegistered(Class<? extends Exception> clazz)

Return true if the exception class is registered.

Parameters:

clazz - class which registration shall be checked

Returns:

true if the class is registered otherwise false

process

public void process(@NotNull
 H handler,
 @NotNull
 @NotNull Exception exception)

Process the exception by executing the associated functor. The functor is associated with the class of the exception. Generalization of the exception class for handling is similar to the rules of the try catch instruction.

Parameters:

handler - handler used to process the exception

exception - exception to be processed