hudson.util

Class Retrier.Builder<V>

java.lang.Object

hudson.util.Retrier.Builder<V>

Type Parameters:

V - The return type of the action to perform.

Enclosing class:

Retrier<V>

public static class Retrier.Builder<V>
extends Object

Builder to create a Retrier object. The action to perform, the way of check whether is was successful and the name of the action are required.

Constructor Summary

Constructors

Constructor and Description
Builder(Callable<V> callable, BiPredicate<Integer,V> checkResult, String action) Constructor of the builder with the required parameters.

Method Summary

Modifier and Type	Method and Description
Retrier<V>	build() Create a Retrier object with the specification set in this builder.
Retrier.Builder<V>	withAttempts(int attempts) Set the number of attempts trying to perform the action.
Retrier.Builder<V>	withDelay(long millis) Set the time in milliseconds to wait for the next attempt.
Retrier.Builder<V>	withDuringActionExceptionListener(BiFunction<Integer,Exception,V> exceptionListener) Set the listener to be executed when an allowed exception is raised when performing the action.
Retrier.Builder<V>	withDuringActionExceptions(Class<?>[] exceptions) Set all the exceptions that are allowed and indicate that the action was failed.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder(@Nonnull
               Callable<V> callable,
               @Nonnull
               BiPredicate<Integer,V> checkResult,
               @Nonnull
               String action)

Constructor of the builder with the required parameters.

Parameters:

callable - Action to perform

checkResult - Method to check if the result of the action was a success

action - name of the action to perform, for messages purposes.

Method Detail

withAttempts

@Nonnull
public Retrier.Builder<V> withAttempts(int attempts)

Set the number of attempts trying to perform the action.

Parameters:

attempts - number of attempts

Returns:

this builder

withDelay

@Nonnull
public Retrier.Builder<V> withDelay(long millis)

Set the time in milliseconds to wait for the next attempt.

Parameters:

millis - milliseconds to wait

Returns:

this builder

withDuringActionExceptions

@Nonnull
public Retrier.Builder<V> withDuringActionExceptions(@CheckForNull
                                                              Class<?>[] exceptions)

Set all the exceptions that are allowed and indicate that the action was failed. When an exception of this type or a child type is raised, a listener can be called (withDuringActionExceptionListener(BiFunction)). In any case, the retrier continues its process, retrying to perform the action again, as it was a normal failure.

Parameters:

exceptions - exceptions that indicate that the action was failed.

Returns:

this builder

withDuringActionExceptionListener

@Nonnull
public Retrier.Builder<V> withDuringActionExceptionListener(@Nonnull
                                                                     BiFunction<Integer,Exception,V> exceptionListener)

Set the listener to be executed when an allowed exception is raised when performing the action. The listener could even change the result of the action if needed.

Parameters:

exceptionListener - the listener to call to

Returns:

this builder

build

@Nonnull
public Retrier<V> build()

Create a Retrier object with the specification set in this builder.

Returns:

the retrier