Example usage for org.apache.commons.pool2.impl GenericObjectPool getNumWaiters

Introduction

In this page you can find the example usage for org.apache.commons.pool2.impl GenericObjectPool getNumWaiters.

Prototype

@Override
public int getNumWaiters() 

Source Link

Document

Return an estimate of the number of threads currently blocked waiting for an object from the pool.

Usage

From source file:com.netflix.spinnaker.kork.jedis.JedisHealthIndicatorFactory.java

public static HealthIndicator build(Pool<Jedis> jedisPool) {
    try {//from   w w w  .  j  a v  a2 s  .co m
        final Pool<Jedis> src = jedisPool;
        final Field poolAccess = Pool.class.getDeclaredField("internalPool");
        poolAccess.setAccessible(true);
        GenericObjectPool<Jedis> internal = (GenericObjectPool<Jedis>) poolAccess.get(jedisPool);
        return () -> {
            Jedis jedis = null;
            Health.Builder health;
            try {
                jedis = src.getResource();
                if ("PONG".equals(jedis.ping())) {
                    health = Health.up();
                } else {
                    health = Health.down();
                }
            } catch (Exception ex) {
                health = Health.down(ex);
            } finally {
                if (jedis != null)
                    jedis.close();
            }
            health.withDetail("maxIdle", internal.getMaxIdle());
            health.withDetail("minIdle", internal.getMinIdle());
            health.withDetail("numActive", internal.getNumActive());
            health.withDetail("numIdle", internal.getNumIdle());
            health.withDetail("numWaiters", internal.getNumWaiters());

            return health.build();
        };
    } catch (IllegalAccessException | NoSuchFieldException e) {
        throw new BeanCreationException("Error creating Redis health indicator", e);
    }
}

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From source file:com.netflix.spinnaker.orca.config.RedisConfiguration.java

@Deprecated // rz - Kept for backwards compat with old connection configs
@Bean/*from w  w  w  .j  a va2  s.  co  m*/
HealthIndicator redisHealth(@Qualifier("jedisPool") Pool<Jedis> jedisPool) {
    try {
        final Pool<Jedis> src = jedisPool;
        final Field poolAccess = Pool.class.getDeclaredField("internalPool");
        poolAccess.setAccessible(true);
        GenericObjectPool<Jedis> internal = (GenericObjectPool<Jedis>) poolAccess.get(jedisPool);
        return () -> {
            Jedis jedis = null;
            Health.Builder health;
            try {
                jedis = src.getResource();
                if ("PONG".equals(jedis.ping())) {
                    health = Health.up();
                } else {
                    health = Health.down();
                }
            } catch (Exception ex) {
                health = Health.down(ex);
            } finally {
                if (jedis != null)
                    jedis.close();
            }
            health.withDetail("maxIdle", internal.getMaxIdle());
            health.withDetail("minIdle", internal.getMinIdle());
            health.withDetail("numActive", internal.getNumActive());
            health.withDetail("numIdle", internal.getNumIdle());
            health.withDetail("numWaiters", internal.getNumWaiters());

            return health.build();
        };
    } catch (IllegalAccessException | NoSuchFieldException e) {
        throw new BeanCreationException("Error creating Redis health indicator", e);
    }
}

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From source file:org.moneta.healthcheck.DbcpConnectionPoolHealthCheck.java

@Override
protected Result check() throws Exception {

    GenericObjectPool<PoolableConnection> pool = (GenericObjectPool<PoolableConnection>) connectionPool;
    if (pool.getNumWaiters() > maxWaitingConnections) {
        return Result.unhealthy(
                "Overloaded connection pool.  name=" + poolName + " nbrWaiters=" + pool.getNumWaiters());
    }/*w  ww .j  av a2 s .  c  o  m*/

    PoolableConnectionFactory poolFactory = (PoolableConnectionFactory) pool.getFactory();
    PoolableConnection conn = null;
    try {
        conn = pool.borrowObject();
        poolFactory.validateConnection(conn);
    } catch (Exception e) {
        return Result
                .unhealthy("Database connection validation error.  error=" + ExceptionUtils.getStackTrace(e));
    } finally {
        DbUtils.closeQuietly(conn);
    }

    return Result.healthy();
}

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