com.epam.reportportal.utils.RetryWithDelay Maven / Gradle / Ivy
/*
* Copyright 2019 EPAM Systems
*
* 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.epam.reportportal.utils;
import io.reactivex.functions.Predicate;
import javax.annotation.Nonnull;
import static java.lang.Thread.sleep;
/**
* Retry with Delay and attempts limits
*
* @author Andrei Varabyeu
*/
public class RetryWithDelay implements Predicate {
private final Predicate predicate;
private final long maxRetries;
private final long retryDelayMillis;
private int retryCount;
public RetryWithDelay(Predicate predicate, final long maxRetries, final long retryDelayMillis) {
this.maxRetries = maxRetries;
this.retryDelayMillis = retryDelayMillis;
this.retryCount = 0;
this.predicate = predicate;
}
@Override
public boolean test(@Nonnull final Throwable throwable) throws Exception {
try {
//check whether we should retry this exception
if (!predicate.test(throwable)) {
return false;
}
} catch (Exception e) {
//pass the error if smth goes wrong
return false;
}
if (++retryCount < maxRetries) {
sleep(retryDelayMillis);
return true;
}
// Max retries hit. Just pass the error along.
return false;
}
}