Java Code Examples for org.redisson.api.RLock#lock()

The following examples show how to use org.redisson.api.RLock#lock() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: RedisLockAspect.java From mall4j with GNU Affero General Public License v3.0

6 votes

@Around("@annotation(redisLock)")
public Object around(ProceedingJoinPoint joinPoint, RedisLock redisLock) throws Throwable {
	String spel = redisLock.key();
	String lockName = redisLock.lockName();

	RLock rLock = redissonClient.getLock(getRedisKey(joinPoint,lockName,spel));

	rLock.lock(redisLock.expire(),redisLock.timeUnit());

	Object result = null;
	try {
		//执行方法
		result = joinPoint.proceed();

	} finally {
		rLock.unlock();
	}
	return result;
}

Example 2

Source File: RedissonLockTest.java From redisson with Apache License 2.0

6 votes

@Test
public void testExpire() throws InterruptedException {
    RLock lock = redisson.getLock("lock");
    lock.lock(2, TimeUnit.SECONDS);

    final long startTime = System.currentTimeMillis();
    Thread t = new Thread() {
        public void run() {
            RLock lock1 = redisson.getLock("lock");
            lock1.lock();
            long spendTime = System.currentTimeMillis() - startTime;
            Assert.assertTrue(spendTime < 2020);
            lock1.unlock();
        };
    };

    t.start();
    t.join();

    assertThatThrownBy(() -> {
        lock.unlock();
    }).isInstanceOf(IllegalMonitorStateException.class);
}

Example 3

Source File: LockExamples.java From redisson-examples with Apache License 2.0

6 votes

public static void main(String[] args) throws InterruptedException {
    // connects to 127.0.0.1:6379 by default
    RedissonClient redisson = Redisson.create();
    
    RLock lock = redisson.getLock("lock");
    lock.lock(2, TimeUnit.SECONDS);

    Thread t = new Thread() {
        public void run() {
            RLock lock1 = redisson.getLock("lock");
            lock1.lock();
            lock1.unlock();
        };
    };

    t.start();
    t.join();

    lock.unlock();
    
    redisson.shutdown();
}

Example 4

Source File: RedissonFairLockTest.java From redisson with Apache License 2.0

6 votes

@Test
public void testGetHoldCount() {
    RLock lock = redisson.getFairLock("lock");
    Assert.assertEquals(0, lock.getHoldCount());
    lock.lock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());

    lock.lock();
    lock.lock();
    Assert.assertEquals(2, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());
}

Example 5

Source File: RedissLockDemo.java From spring-boot-seckill with GNU General Public License v2.0

6 votes

/**
	 * 公平锁（Fair Lock）
	 * Redisson分布式可重入公平锁也是实现了java.util.concurrent.locks.Lock接口的一种RLock对象。
	 * 在提供了自动过期解锁功能的同时，保证了当多个Redisson客户端线程同时请求加锁时，优先分配给先发出请求的线程。
	 * @param redisson
	 */
	public void testFairLock(RedissonClient redisson){  
	    RLock fairLock = redisson.getFairLock("anyLock");  
	    try{  
	        // 最常见的使用方法  
	        fairLock.lock();  
	        // 支持过期解锁功能, 10秒钟以后自动解锁,无需调用unlock方法手动解锁  
	        fairLock.lock(10, TimeUnit.SECONDS);  
	        // 尝试加锁，最多等待100秒，上锁以后10秒自动解锁  
	        boolean res = fairLock.tryLock(100, 10, TimeUnit.SECONDS);  
	        if (res) {
				// do your business
			}
	    } catch (InterruptedException e) {  
	        e.printStackTrace();  
	    } finally {  
	        fairLock.unlock();  
	    }  
//      Redisson同时还为分布式可重入公平锁提供了异步执行的相关方法：
//	    RLock fairLock = redisson.getFairLock("anyLock");  
//	    fairLock.lockAsync();  
//	    fairLock.lockAsync(10, TimeUnit.SECONDS);  
//	    Future<Boolean> res = fairLock.tryLockAsync(100, 10, TimeUnit.SECONDS);  
	}

Example 6

Source File: RedissonLockTest.java From redisson with Apache License 2.0

6 votes

@Test
public void testGetHoldCount() {
    RLock lock = redisson.getLock("lock");
    Assert.assertEquals(0, lock.getHoldCount());
    lock.lock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());

    lock.lock();
    lock.lock();
    Assert.assertEquals(2, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());
}

Example 7

Source File: RedissonFairLockTest.java From redisson with Apache License 2.0

6 votes

@Test
public void testExpire() throws InterruptedException {
    RLock lock = redisson.getFairLock("lock");
    lock.lock(2, TimeUnit.SECONDS);

    final long startTime = System.currentTimeMillis();
    Thread t = new Thread() {
        public void run() {
            RLock lock1 = redisson.getFairLock("lock");
            lock1.lock();

            long spendTime = System.currentTimeMillis() - startTime;
            System.out.println(spendTime);
            Assert.assertTrue(spendTime < 2020);
            lock1.unlock();
        };
    };

    t.start();
    t.join();

    lock.unlock();
}

Example 8

Source File: RattingInterceptorService.java From heimdall with Apache License 2.0

5 votes

/**
 * Limits the number of requests to a specific path
 *
 * @param name RLock name
 * @param path rate limit key
 */
public void execute(String name, String path, Long calls, Interval interval, Long id) {
    RequestContext ctx = RequestContext.getCurrentContext();

    RLock lock = rateLimitRepository.getLock(name);
    lock.lock();

    RateLimit rate = rateLimitRepository.find(path);

    if (rate == null) {
        rate = rateLimitRepository.mountRatelimit(id, calls, interval);
    }

    if (rate.getLastRequest() == null) {
        rate.setLastRequest(LocalDateTime.now());
    }

    if (hasIntervalEnded(rate)) {
        rate.reset();
        rate.decreaseRemaining();
        rateLimitRepository.save(rate);
    } else {
        if (rate.hasRemaining()) {
            rate.decreaseRemaining();
            rateLimitRepository.save(rate);
        } else {
            ctx.setSendZuulResponse(false);
            ctx.setResponseStatusCode(HttpStatus.TOO_MANY_REQUESTS.value());
            ctx.setResponseBody(HttpStatus.TOO_MANY_REQUESTS.getReasonPhrase());
        }

    }
    lock.unlock();
}

Example 9

Source File: RedissionUtilsTest.java From Redis_Learning with Apache License 2.0

5 votes

/** 
 * RLock ӳ��Ϊredis server��string ���� 
 * string�д�� �̱߳�ʾ���̼߳��� 
 * �鿴���м�---->keys * 
 * �鿴key������--->type testLock1 
 * �鿴key��ֵ ---->get testLock1  
 * �������redis server�� ���� testLock1 
 * �Ͳ���ʹ��   rLock.unlock(); 
 * ��Ϊʹ�� rLock.unlock(); ֮�� �ͻ�ɾ��redis server�е� testLock1 
 *  
 */  
@Test  
public void testGetRLock() {  
    RLock rLock=RedissionUtils.getInstance().getRLock(redisson, "testLock1");  
    if(rLock.isLocked()) rLock.unlock();  
    else rLock.lock();  
    //  
    System.out.println(rLock.getName());  
    System.out.println(rLock.getHoldCount());  
    System.out.println(rLock.isLocked());  
    rLock.unlock();  
}

Example 10

Source File: TracingRedissonTest.java From java-redis-client with Apache License 2.0

5 votes

@Test
public void test_lock() {
  RLock lock = client.getLock("lock");

  lock.lock(10, TimeUnit.SECONDS);
  lock.unlock();

  List<MockSpan> spans = tracer.finishedSpans();
  assertEquals(2, spans.size());
  checkSpans(spans);
  assertNull(tracer.activeSpan());
}

Example 11

Source File: RedissonFairLockTest.java From redisson with Apache License 2.0

5 votes

@Test
public void testForceUnlock() {
    RLock lock = redisson.getFairLock("lock");
    lock.lock();
    lock.forceUnlock();
    Assert.assertFalse(lock.isLocked());

    lock = redisson.getFairLock("lock");
    Assert.assertFalse(lock.isLocked());
}

Example 12

Source File: RedissonLockTest.java From redisson with Apache License 2.0

5 votes

@Test
public void testForceUnlock() {
    RLock lock = redisson.getLock("lock");
    lock.lock();
    lock.forceUnlock();
    Assert.assertFalse(lock.isLocked());

    lock = redisson.getLock("lock");
    Assert.assertFalse(lock.isLocked());
}

Example 13

Source File: RedissonLockTest.java From redisson with Apache License 2.0

5 votes

@Test
public void testInCluster() throws Exception {
    RedisRunner master1 = new RedisRunner().port(6890).randomDir().nosave();
    RedisRunner master2 = new RedisRunner().port(6891).randomDir().nosave();
    RedisRunner master3 = new RedisRunner().port(6892).randomDir().nosave();
    RedisRunner slave1 = new RedisRunner().port(6900).randomDir().nosave();
    RedisRunner slave2 = new RedisRunner().port(6901).randomDir().nosave();
    RedisRunner slave3 = new RedisRunner().port(6902).randomDir().nosave();

    ClusterRunner clusterRunner = new ClusterRunner()
            .addNode(master1, slave1)
            .addNode(master2, slave2)
            .addNode(master3, slave3);
    ClusterRunner.ClusterProcesses process = clusterRunner.run();

    Thread.sleep(5000);

    Config config = new Config();
    config.useClusterServers()
    .setLoadBalancer(new RandomLoadBalancer())
    .addNodeAddress(process.getNodes().stream().findAny().get().getRedisServerAddressAndPort());
    RedissonClient redisson = Redisson.create(config);

    RLock lock = redisson.getLock("myLock");
    lock.lock();
    assertThat(lock.isLocked()).isTrue();
    lock.unlock();
    assertThat(lock.isLocked()).isFalse();

    redisson.shutdown();
    process.shutdown();
}

Example 14

Source File: RedissonReadWriteLockTest.java From redisson with Apache License 2.0

5 votes

private void testHoldCount(RLock lock) {
    Assert.assertEquals(0, lock.getHoldCount());
    lock.lock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());

    lock.lock();
    lock.lock();
    Assert.assertEquals(2, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(1, lock.getHoldCount());
    lock.unlock();
    Assert.assertEquals(0, lock.getHoldCount());
}

Example 15

Source File: RedissonReadWriteLockTest.java From redisson with Apache License 2.0

5 votes

@Test
public void testIsHeldByCurrentThread() {
    RReadWriteLock rwlock = redisson.getReadWriteLock("lock");
    RLock lock = rwlock.readLock();
    Assert.assertFalse(lock.isHeldByCurrentThread());
    lock.lock();
    Assert.assertTrue(lock.isHeldByCurrentThread());
    lock.unlock();
    Assert.assertFalse(lock.isHeldByCurrentThread());
}

Example 16

Source File: RedissonLockTest.java From redisson with Apache License 2.0

5 votes

@Test
public void testIsHeldByCurrentThread() {
    RLock lock = redisson.getLock("lock");
    Assert.assertFalse(lock.isHeldByCurrentThread());
    lock.lock();
    Assert.assertTrue(lock.isHeldByCurrentThread());
    lock.unlock();
    Assert.assertFalse(lock.isHeldByCurrentThread());
}

Example 17

Source File: RedisCache.java From gcp-token-broker with Apache License 2.0

4 votes

public Lock acquireLock(String lockName) {
    RLock lock = getClient().getLock(lockName);
    lock.lock();
    return lock;
}

Example 18

Source File: SingleRedisLock.java From SnowJena with Apache License 2.0

4 votes

public void acquire(String lockName){
    String key = LOCK_TITLE + lockName;
    RLock mylock = redisson.getLock(key);
    mylock.lock(5, TimeUnit.MINUTES); //lock提供带timeout参数，timeout结束强制解锁，防止死锁
}

Example 19

Source File: RedissonReadWriteLockTest.java From redisson with Apache License 2.0

4 votes

@Test
public void testWriteLock() throws InterruptedException {
    final RReadWriteLock lock = redisson.getReadWriteLock("lock");

    final RLock writeLock = lock.writeLock();
    writeLock.lock();

    Assert.assertTrue(lock.writeLock().tryLock());

    Thread t = new Thread() {
        public void run() {
             Assert.assertFalse(writeLock.isHeldByCurrentThread());
             Assert.assertTrue(writeLock.isLocked());
             Assert.assertFalse(lock.readLock().tryLock());
             Assert.assertFalse(redisson.getReadWriteLock("lock").readLock().tryLock());

             try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

             Assert.assertTrue(lock.readLock().tryLock());
             Assert.assertTrue(redisson.getReadWriteLock("lock").readLock().tryLock());
        };
    };

    t.start();
    t.join(50);

    writeLock.unlock();
    Assert.assertTrue(lock.readLock().tryLock());
    Assert.assertTrue(writeLock.isHeldByCurrentThread());
    writeLock.unlock();
    Thread.sleep(1000);

    Assert.assertFalse(lock.writeLock().tryLock());
    Assert.assertFalse(lock.writeLock().isLocked());
    Assert.assertFalse(lock.writeLock().isHeldByCurrentThread());
    lock.writeLock().forceUnlock();
}

Example 20

Source File: RedissonReadWriteLockTest.java From redisson with Apache License 2.0

4 votes

@Test
public void testMultiRead() throws InterruptedException {
    final RReadWriteLock lock = redisson.getReadWriteLock("lock");
    Assert.assertFalse(lock.readLock().forceUnlock());

    final RLock readLock1 = lock.readLock();
    readLock1.lock();

    Assert.assertFalse(lock.writeLock().tryLock());

    final AtomicReference<RLock> readLock2 = new AtomicReference<RLock>();
    Thread t = new Thread() {
        public void run() {
             RLock r = lock.readLock();
             Assert.assertFalse(readLock1.isHeldByCurrentThread());
             Assert.assertTrue(readLock1.isLocked());
             r.lock();
             readLock2.set(r);

             try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            r.unlock();
        };
    };

    t.start();
    t.join(50);

    Assert.assertTrue(readLock2.get().isLocked());

    readLock1.unlock();
    Assert.assertFalse(lock.writeLock().tryLock());
    Assert.assertFalse(readLock1.isHeldByCurrentThread());
    Thread.sleep(1000);

    Assert.assertFalse(readLock2.get().isLocked());
    Assert.assertTrue(lock.writeLock().tryLock());
    Assert.assertTrue(lock.writeLock().isLocked());
    Assert.assertTrue(lock.writeLock().isHeldByCurrentThread());
    lock.writeLock().unlock();

    Assert.assertFalse(lock.writeLock().isLocked());
    Assert.assertFalse(lock.writeLock().isHeldByCurrentThread());
    Assert.assertTrue(lock.writeLock().tryLock());
    lock.writeLock().forceUnlock();
}