001/*-
002 * #%L
003 * HAPI FHIR Storage api
004 * %%
005 * Copyright (C) 2014 - 2025 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.jpa.subscription.channel.impl;
021
022import org.apache.commons.lang3.time.DateUtils;
023import org.springframework.retry.RetryPolicy;
024import org.springframework.retry.backoff.BackOffPolicy;
025import org.springframework.retry.backoff.ExponentialBackOffPolicy;
026import org.springframework.retry.policy.TimeoutRetryPolicy;
027import org.springframework.retry.support.RetryTemplate;
028
029public class RetryPolicyProvider {
030
031        public RetryTemplate getRetryTemplate() {
032                RetryTemplate retryTemplate = new RetryTemplate();
033                retryTemplate.setBackOffPolicy(backOffPolicy());
034                retryTemplate.setRetryPolicy(retryPolicy());
035                retryTemplate.setThrowLastExceptionOnExhausted(true);
036
037                return retryTemplate;
038        }
039
040        protected RetryPolicy retryPolicy() {
041                TimeoutRetryPolicy retryPolicy = new TimeoutRetryPolicy();
042                retryPolicy.setTimeout(DateUtils.MILLIS_PER_MINUTE);
043                return retryPolicy;
044        }
045
046        protected BackOffPolicy backOffPolicy() {
047                ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
048                backOffPolicy.setInitialInterval(1000);
049                backOffPolicy.setMultiplier(1.1d);
050                return backOffPolicy;
051        }
052}