71 lines
2.5 KiB
Java
71 lines
2.5 KiB
Java
/**
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* Copyright (C) 2009-2015 Typesafe Inc. <http://www.typesafe.com>
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*/
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package akka.japi.pf;
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import static akka.actor.SupervisorStrategy.Directive;
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/**
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* Used for building a partial function for {@link akka.actor.Actor#supervisorStrategy() Actor.supervisorStrategy()}.
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* *
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* Inside an actor you can use it like this with Java 8 to define your supervisorStrategy.
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* <p>
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* Example:
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* </p>
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* <pre>
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* @Override
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* private static SupervisorStrategy strategy =
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* new OneForOneStrategy(10, Duration.create("1 minute"), DeciderBuilder.
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* match(ArithmeticException.class, e -> resume()).
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* match(NullPointerException.class, e -> restart()).
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* match(IllegalArgumentException.class, e -> stop()).
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* matchAny(o -> escalate()).build());
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*
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* @Override
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* public SupervisorStrategy supervisorStrategy() {
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* return strategy;
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* }
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* </pre>
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*
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* This is an EXPERIMENTAL feature and is subject to change until it has received more real world testing.
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*/
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public class DeciderBuilder {
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private DeciderBuilder() {
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}
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/**
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* Return a new {@link PFBuilder} with a case statement added.
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*
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* @param type a type to match the argument against
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* @param apply an action to apply to the argument if the type matches
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* @return a builder with the case statement added
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*/
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public static <P extends Throwable> PFBuilder<Throwable, Directive> match(final Class<P> type, FI.Apply<P, Directive> apply) {
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return Match.match(type, apply);
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}
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/**
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* Return a new {@link PFBuilder} with a case statement added.
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*
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* @param type a type to match the argument against
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* @param predicate a predicate that will be evaluated on the argument if the type matches
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* @param apply an action to apply to the argument if the type matches and the predicate returns true
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* @return a builder with the case statement added
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*/
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public static <P extends Throwable> PFBuilder<Throwable, Directive> match(final Class<P> type,
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FI.TypedPredicate<P> predicate,
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FI.Apply<P, Directive> apply) {
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return Match.match(type, predicate, apply);
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}
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/**
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* Return a new {@link PFBuilder} with a case statement added.
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*
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* @param apply an action to apply to the argument
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* @return a builder with the case statement added
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*/
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public static PFBuilder<Throwable, Directive> matchAny(FI.Apply<Object, Directive> apply) {
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return Match.matchAny(apply);
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}
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}
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