com.jdkhome.blzo.ex.redission.actuator.FairLockActuator Maven / Gradle / Ivy
package com.jdkhome.blzo.ex.redission.actuator;
import com.jdkhome.blzo.ex.basic.configuration.ApplicationContextProvider;
import com.jdkhome.blzo.ex.basic.enums.BasicResponseError;
import com.jdkhome.blzo.ex.basic.exception.ServiceException;
import com.jdkhome.blzo.ex.redission.Consumer;
import lombok.extern.slf4j.Slf4j;
import org.redisson.RedissonFairLock;
import org.redisson.RedissonMultiLock;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* 公平锁
*/
@Slf4j
public class FairLockActuator {
private String key;
private long wait = 2L;
private long lease = 10L;
public void exec(Consumer action) {
RedissonClient redissonClient = ApplicationContextProvider.getBean(RedissonClient.class);
RLock fairLock = redissonClient.getFairLock(key);
try {
boolean lockResult = fairLock.tryLock(wait, lease, TimeUnit.SECONDS);
if (!lockResult) {
log.warn("获取分布式公平锁失败 超时 : {} ", fairLock);
throw new ServiceException(BasicResponseError.SERVER_BUSY);
}
log.debug("成功获取分布式公平锁 : {} ", fairLock);
action.accept();
} catch (ServiceException se) {
log.warn("业务异常 当前占用分布式公平锁 : {} exception :{} ", fairLock, se.getErrorMsg());
throw se;
} catch (InterruptedException e) {
log.warn("InterruptedException 当前占用分布式公平锁 : {} ", fairLock);
Thread.currentThread().interrupt();
throw new ServiceException(BasicResponseError.SERVER_ERROR, e);
} catch (Exception e) {
log.warn("其他异常 当前占用分布式公平锁 : {} exception :{} ", fairLock, e.getMessage());
throw e;
} finally {
if (null != fairLock) {
try {
fairLock.unlock();
log.debug("成功释放分布式公平锁 : {} ", fairLock);
} catch (Exception e) {
log.warn("释放分布式锁失公平锁", e);
}
}
}
}
public FairLockActuator(String key, long wait, long lease) {
this.key = key;
this.wait = wait;
this.lease = lease;
}
public FairLockActuator(String key) {
this.key = key;
}
static public FairLockActuator create(String key, long wait, long lease) {
return new FairLockActuator(key, wait, lease);
}
static public FairLockActuator create(String key) {
return new FairLockActuator(key);
}
}