fr.free.jnizet.retry.RetryException Maven / Gradle / Ivy

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This is a small extension to Google's Guava library to allow for the creation of configurable retrying strategies for an arbitrary function call, such as something that talks to a remote service with flaky uptime.

There is a newer version: 2.0.0

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package fr.free.jnizet.retry;

import javax.annotation.Nonnull;
import javax.annotation.concurrent.Immutable;

import com.google.common.base.Preconditions;

/**
 * An exception indicating that none of the attempts of the retryer succeeded.
 * @author JB
 */
@Immutable
public final class RetryException extends Exception {

    private final int numberOfFailedAttempts;
    private final Attempt lastFailedAttempt;

    /**
     * Constructor
     * @param lastFailedAttempt the last failed attempt
     */
    public RetryException(int numberOfFailedAttempts, @Nonnull Attempt lastFailedAttempt) {
        Preconditions.checkNotNull(lastFailedAttempt);
        this.numberOfFailedAttempts = numberOfFailedAttempts;
        this.lastFailedAttempt = lastFailedAttempt;
    }

    /**
     * Returns the number of failed attempts
     */
    public int getNumberOfFailedAttempts() {
        return numberOfFailedAttempts;
    }

    /**
     * Returns the last failed attempt
     */
    public Attempt getLastFailedAttempt() {
        return lastFailedAttempt;
    }
}