com.netflix.spinnaker.kork.aws.InstrumentedBackoffStrategy.java Source code

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Here is the source code for com.netflix.spinnaker.kork.aws.InstrumentedBackoffStrategy.java

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/*
 * Copyright 2015 Netflix, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.netflix.spinnaker.kork.aws;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonWebServiceRequest;
import com.amazonaws.retry.PredefinedRetryPolicies;
import com.amazonaws.retry.RetryPolicy;
import com.netflix.spectator.api.Registry;

import java.util.Objects;

public class InstrumentedBackoffStrategy implements RetryPolicy.BackoffStrategy {
    private final Registry registry;
    private final RetryPolicy.BackoffStrategy delegate;

    public InstrumentedBackoffStrategy(Registry registry) {
        this(registry, PredefinedRetryPolicies.DEFAULT_BACKOFF_STRATEGY);
    }

    public InstrumentedBackoffStrategy(Registry registry, RetryPolicy.BackoffStrategy delegate) {
        this.registry = Objects.requireNonNull(registry, "registry");
        this.delegate = Objects.requireNonNull(delegate, "delegate");
    }

    public long delayBeforeNextRetry(AmazonWebServiceRequest originalRequest, AmazonClientException exception,
            int retriesAttempted) {
        long delay = delegate.delayBeforeNextRetry(originalRequest, exception, retriesAttempted);
        registry.distributionSummary("AWS_delay", AwsMetricsSupport.buildExceptionTags(originalRequest, exception))
                .record(delay);
        return delay;
    }
}