org.apache.hudi.common.util.queue.WaitStrategyFactory Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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,
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* See the License for the specific language governing permissions and
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*/
package org.apache.hudi.common.util.queue;
import com.lmax.disruptor.BlockingWaitStrategy;
import com.lmax.disruptor.BusySpinWaitStrategy;
import com.lmax.disruptor.SleepingWaitStrategy;
import com.lmax.disruptor.WaitStrategy;
import com.lmax.disruptor.YieldingWaitStrategy;
import org.apache.hudi.exception.HoodieException;
import static org.apache.hudi.common.util.queue.DisruptorWaitStrategyType.BLOCKING_WAIT;
/**
* Factory for creating wait strategy for a queue.
*/
public class WaitStrategyFactory {
public static final String DEFAULT_STRATEGY = BLOCKING_WAIT.name();
/**
* Build WaitStrategy for disruptor
*/
public static WaitStrategy build(String name) {
DisruptorWaitStrategyType strategyType = DisruptorWaitStrategyType.valueOf(name);
switch (strategyType) {
case BLOCKING_WAIT:
return new BlockingWaitStrategy();
case SLEEPING_WAIT:
return new SleepingWaitStrategy();
case YIELDING_WAIT:
return new YieldingWaitStrategy();
case BUSY_SPIN_WAIT:
return new BusySpinWaitStrategy();
default:
throw new HoodieException("Unsupported Executor Type " + name);
}
}
}