org.factcast.factus.redis.tx.RedisTransactional Maven / Gradle / Ivy

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/*
 * Copyright © 2017-2022 factcast.org
 *
 * 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 org.factcast.factus.redis.tx;

import java.lang.annotation.*;
import java.util.concurrent.TimeUnit;
import javax.annotation.Nullable;
import lombok.experimental.UtilityClass;
import org.redisson.api.TransactionOptions;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.TYPE)
@Inherited
public @interface RedisTransactional {

  int DEFAULT_BULK_SIZE = 1000;

  int bulkSize() default DEFAULT_BULK_SIZE;

  long timeout() default Defaults.TIMEOUT;

  long responseTimeout() default Defaults.RESPONSE_TIMEOUT;

  int retryAttempts() default Defaults.RETRY_ATTEMPTS;

  long retryInterval() default Defaults.RETRY_INTERVAL;

  @UtilityClass
  class Defaults {
    static final long TIMEOUT = 30000;
    static final long RESPONSE_TIMEOUT = 5001;
    static final int RETRY_ATTEMPTS = 5;
    static final long RETRY_INTERVAL = 3000;

    public static TransactionOptions create() {
      return TransactionOptions.defaults()
          .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
          .responseTimeout(RESPONSE_TIMEOUT, TimeUnit.MILLISECONDS)
          .retryAttempts(RETRY_ATTEMPTS)
          .retryInterval(RETRY_INTERVAL, TimeUnit.MILLISECONDS);
    }

    public static TransactionOptions with(@Nullable RedisTransactional transactional) {
      TransactionOptions opts = create();

      if (transactional != null) {

        long responseTimeout = transactional.responseTimeout();
        if (responseTimeout > 0) {
          opts.responseTimeout(responseTimeout, TimeUnit.MILLISECONDS);
        }

        int retryAttempts = transactional.retryAttempts();
        if (retryAttempts > 0) {
          opts.retryAttempts(retryAttempts);
        }

        long retryInterval = transactional.retryInterval();
        if (retryInterval > 0) {
          opts.retryInterval(retryInterval, TimeUnit.MILLISECONDS);
        }

        long timeout = transactional.timeout();
        if (timeout > 0) {
          opts.timeout(timeout, TimeUnit.MILLISECONDS);
        }
      }

      return opts;
    }
  }
}