com.github.ljtfreitas.restify.http.client.retry.RetryConfigurationFactory Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of java-restify Show documentation
Java Restify Project
The newest version!
/*******************************************************************************
 *
 * MIT License
 *
 * Copyright (c) 2016 Tiago de Freitas Lima
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 *******************************************************************************/
package com.github.ljtfreitas.restify.http.client.retry;

import static com.github.ljtfreitas.restify.http.client.retry.RetryCondition.ThrowableRetryCondition.ioFailure;

import java.util.Optional;

import com.github.ljtfreitas.restify.http.client.message.response.StatusCode;
import com.github.ljtfreitas.restify.http.client.request.EndpointRequest;

public class RetryConfigurationFactory {

	private final RetryConfiguration retryConfiguration;

	public RetryConfigurationFactory(RetryConfiguration retryConfiguration) {
		this.retryConfiguration = retryConfiguration;
	}

	public RetryConfiguration createOf(EndpointRequest endpointRequest) {
		return endpointRequest.metadata().get(Retry.class)
				.map(retry -> configurationOf(retry))
					.orElseGet(() -> Optional.ofNullable(retryConfiguration).orElseGet(RetryConfiguration::simple));
	}

	private RetryConfiguration configurationOf(Retry retry) {
		return new RetryConfiguration.Builder()
				.attempts(retry.attempts())
				.timeout(retry.timeout())
				.when(retry.status())
				.when(retry.exceptions())
				.when((StatusCode s) -> retry.on4xxStatus() && s.isClientError())
				.when((StatusCode s) -> retry.on5xxStatus() && s.isServerError())
				.when((Throwable t) -> retry.onIOFailure() && ioFailure().test(t))
				.backOff()
					.delay(retry.backoff().delay())
					.multiplier(retry.backoff().multiplier())
					.and()
				.build();
	}
}