/*
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* Copyright (c) 2018-2028, DreamLu All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: DreamLu 卢春梦 (596392912@qq.com)
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*/
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package org.springblade.core.redis.lock;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.redisson.api.RLock;
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import org.redisson.api.RedissonClient;
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import org.springblade.core.tool.function.CheckedSupplier;
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import org.springblade.core.tool.utils.Exceptions;
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import java.util.concurrent.TimeUnit;
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/**
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* 锁客户端
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*
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* @author L.cm
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*/
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@Slf4j
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@RequiredArgsConstructor
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public class RedisLockClientImpl implements RedisLockClient {
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private final RedissonClient redissonClient;
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@Override
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public boolean tryLock(String lockName, LockType lockType, long waitTime, long leaseTime, TimeUnit timeUnit) throws InterruptedException {
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RLock lock = getLock(lockName, lockType);
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return lock.tryLock(waitTime, leaseTime, timeUnit);
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}
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@Override
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public void unLock(String lockName, LockType lockType) {
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RLock lock = getLock(lockName, lockType);
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// 仅仅在已经锁定和当前线程持有锁时解锁
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if (lock.isLocked() && lock.isHeldByCurrentThread()) {
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lock.unlock();
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}
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}
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private RLock getLock(String lockName, LockType lockType) {
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RLock lock;
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if (LockType.REENTRANT == lockType) {
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lock = redissonClient.getLock(lockName);
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} else {
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lock = redissonClient.getFairLock(lockName);
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}
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return lock;
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}
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@Override
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public <T> T lock(String lockName, LockType lockType, long waitTime, long leaseTime, TimeUnit timeUnit, CheckedSupplier<T> supplier) {
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try {
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boolean result = this.tryLock(lockName, lockType, waitTime, leaseTime, timeUnit);
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if (result) {
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return supplier.get();
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}
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} catch (Throwable e) {
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throw Exceptions.unchecked(e);
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} finally {
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this.unLock(lockName, lockType);
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}
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return null;
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}
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}
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