/// <summary>
/// Gets the <see cref="HystrixThreadPoolMetrics"/> instance for a given <see cref="HystrixThreadPoolKey"/> or null if none exists.
/// </summary>
/// <param name="key">Key of the tracked thread pool.</param>
/// <returns>A thread pool metrics instance of the specified thread pool.</returns>
public static HystrixThreadPoolMetrics GetInstance(HystrixThreadPoolKey key)
{
HystrixThreadPoolMetrics threadPoolMetrics = null;
Metrics.TryGetValue(key, out threadPoolMetrics);
return(threadPoolMetrics);
}
/// <summary>
/// Initializes a new instance of the <see cref="HystrixThreadPoolMetrics"/> class.
/// </summary>
/// <param name="threadPoolKey">The key of the parent thread pool.</param>
/// <param name="threadPool">The <see cref="ThreadPoolExecutor"/> of the parent thread pool.</param>
/// <param name="properties">The properties of the parent thread pool.</param>
private HystrixThreadPoolMetrics(HystrixThreadPoolKey threadPoolKey, ThreadPoolExecutor threadPool, IHystrixThreadPoolProperties properties)
{
this.threadPoolKey = threadPoolKey;
this.threadPool = threadPool;
this.properties = properties;
this.counter = new HystrixRollingNumber(properties.MetricsRollingStatisticalWindowInMilliseconds, properties.MetricsRollingStatisticalWindowBuckets);
}
/// <summary>
/// Initializes a new instance of the <see cref="HystrixThreadPoolMetrics"/> class.
/// </summary>
/// <param name="threadPoolKey">The key of the parent thread pool.</param>
/// <param name="threadPool">The <see cref="ThreadPoolExecutor"/> of the parent thread pool.</param>
/// <param name="properties">The properties of the parent thread pool.</param>
private HystrixThreadPoolMetrics(HystrixThreadPoolKey threadPoolKey, ThreadPoolExecutor threadPool, IHystrixThreadPoolProperties properties)
{
this.threadPoolKey = threadPoolKey;
this.threadPool = threadPool;
this.properties = properties;
this.counter = new HystrixRollingNumber(properties.MetricsRollingStatisticalWindowInMilliseconds, properties.MetricsRollingStatisticalWindowBuckets);
}
public IHystrixThreadPoolProperties GetThreadPoolProperties(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
if (setter == null)
{
setter = UnitTestSetterFactory.GetThreadPoolPropertiesSetter();
}
return new MockingHystrixThreadPoolProperties(setter);
}
/// <summary>
/// Initializes a new instance of the <see cref="HystrixThreadPoolDefault"/> class.
/// </summary>
/// <param name="threadPoolKey">The key of this thread pool.</param>
/// <param name="setter">The default properties of this thread pool.</param>
public HystrixThreadPoolDefault(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
this.properties = HystrixPropertiesFactory.GetThreadPoolProperties(threadPoolKey, setter);
this.queue = HystrixPlugins.Instance.ConcurrencyStrategy.GetBlockingQueue(this.properties.MaxQueueSize.Get());
this.threadPool = HystrixPlugins.Instance.ConcurrencyStrategy.GetThreadPool(threadPoolKey, this.properties.CoreSize, this.properties.CoreSize, this.properties.KeepAliveTime, this.queue);
this.metrics = HystrixThreadPoolMetrics.GetInstance(threadPoolKey, this.threadPool, this.properties);
HystrixMetricsPublisherFactory.CreateOrRetrievePublisherForThreadPool(threadPoolKey, this.metrics, this.properties);
}
/// <summary>
/// Initializes a new instance of the <see cref="HystrixThreadPoolDefault"/> class.
/// </summary>
/// <param name="threadPoolKey">The key of this thread pool.</param>
/// <param name="setter">The default properties of this thread pool.</param>
public HystrixThreadPoolDefault(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
this.properties = HystrixPropertiesFactory.GetThreadPoolProperties(threadPoolKey, setter);
this.queue = HystrixPlugins.Instance.ConcurrencyStrategy.GetBlockingQueue(this.properties.MaxQueueSize.Get());
this.threadPool = HystrixPlugins.Instance.ConcurrencyStrategy.GetThreadPool(threadPoolKey, this.properties.CoreSize, this.properties.CoreSize, this.properties.KeepAliveTime, this.queue);
this.metrics = HystrixThreadPoolMetrics.GetInstance(threadPoolKey, this.threadPool, this.properties);
HystrixMetricsPublisherFactory.CreateOrRetrievePublisherForThreadPool(threadPoolKey, this.metrics, this.properties);
}
public static IHystrixThreadPoolProperties GetThreadPoolProperties(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
if (threadPoolKey == null)
throw new ArgumentNullException("threadPoolKey");
IHystrixPropertiesStrategy strategy = HystrixPlugins.Instance.PropertiesStrategy;
string cacheKey = strategy.GetThreadPoolPropertiesCacheKey(threadPoolKey, setter);
if (String.IsNullOrEmpty(cacheKey))
{
return strategy.GetThreadPoolProperties(threadPoolKey, setter);
}
else
{
return threadPoolProperties.GetOrAdd(cacheKey, w =>
{
if (setter == null)
{
setter = new HystrixThreadPoolPropertiesSetter();
}
return strategy.GetThreadPoolProperties(threadPoolKey, setter);
});
}
}
public virtual IHystrixThreadPoolProperties GetThreadPoolProperties(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
return new HystrixThreadPoolPropertiesDefault(setter);
}
public virtual string GetThreadPoolPropertiesCacheKey(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
return threadPoolKey.Name;
}
public IHystrixMetricsPublisherThreadPool GetMetricsPublisherForThreadPool(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
return new HystrixDelegateMetricsPublisherThreadPool(() => this.threadCounter.IncrementAndGet());
}
public HystrixCommandSetter AndThreadPoolKey(HystrixThreadPoolKey threadPoolKey)
{
ThreadPoolKey = threadPoolKey;
return this;
}
/// <summary>
/// Gets the <see cref="HystrixThreadPoolMetrics"/> instance for a given <see cref="HystrixThreadPoolKey"/>.
/// If no metrics exists for the specified key, a new one will be created from the specified threadPool and setter.
/// </summary>
/// <param name="key">Key of the tracked thread pool.</param>
/// <param name="threadPool">The thread pool executor of the tracked pool.</param>
/// <param name="properties">The properties of the tracked pool.</param>
/// <returns>A new or an existing thread pool metrics instance of the specified key.</returns>
public static HystrixThreadPoolMetrics GetInstance(HystrixThreadPoolKey key, ThreadPoolExecutor threadPool, IHystrixThreadPoolProperties properties)
{
return Metrics.GetOrAdd(key, w => new HystrixThreadPoolMetrics(key, threadPool, properties));
}
public HystrixMetricsPublisherThreadPoolDefault(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
// do nothing by default
}
/// <summary>
/// Gets the <see cref="HystrixThreadPoolMetrics"/> instance for a given <see cref="HystrixThreadPoolKey"/>.
/// If no metrics exists for the specified key, a new one will be created from the specified threadPool and setter.
/// </summary>
/// <param name="key">Key of the tracked thread pool.</param>
/// <param name="threadPool">The thread pool executor of the tracked pool.</param>
/// <param name="properties">The properties of the tracked pool.</param>
/// <returns>A new or an existing thread pool metrics instance of the specified key.</returns>
public static HystrixThreadPoolMetrics GetInstance(HystrixThreadPoolKey key, ThreadPoolExecutor threadPool, IHystrixThreadPoolProperties properties)
{
return(Metrics.GetOrAdd(key, w => new HystrixThreadPoolMetrics(key, threadPool, properties)));
}
/// <summary>
/// Gets the <see cref="IHystrixThreadPool"/> instance for a given <see cref="HystrixThreadPoolKey"/>.
/// If no thread pool exists for the specified key, a new one will be created from the specified setter.
/// This is thread-safe and ensures only 1 <see cref="IHystrixThreadPool"/> per <see cref="HystrixThreadPoolKey"/>.
/// </summary>
/// <param name="threadPoolKey">Key of the requested thread pool.</param>
/// <param name="setter">The setter to construct the new thread pool.</param>
/// <returns>A new or an existing thread pool instance.</returns>
internal static IHystrixThreadPool GetInstance(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
return ThreadPools.GetOrAdd(threadPoolKey, w => new HystrixThreadPoolDefault(threadPoolKey, setter));
}
public IHystrixMetricsPublisherThreadPool GetMetricsPublisherForThreadPool(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
return new Dummy1();
}
public IHystrixMetricsPublisherThreadPool GetPublisherForThreadPool(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
return this.threadPoolPublishers.GetOrAdd(threadPoolKey.Name,
w => this.strategy.GetMetricsPublisherForThreadPool(threadPoolKey, metrics, properties),
w => w.Initialize());
}
public static IHystrixMetricsPublisherThreadPool CreateOrRetrievePublisherForThreadPool(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
return instance.GetPublisherForThreadPool(threadPoolKey, metrics, properties);
}
public virtual IHystrixMetricsPublisherThreadPool GetMetricsPublisherForThreadPool(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolMetrics metrics, IHystrixThreadPoolProperties properties)
{
return new HystrixMetricsPublisherThreadPoolDefault(threadPoolKey, metrics, properties);
}
public string GetThreadPoolPropertiesCacheKey(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
return null;
}
/// <summary>
/// Gets the <see cref="IHystrixThreadPool"/> instance for a given <see cref="HystrixThreadPoolKey"/>.
/// If no thread pool exists for the specified key, a new one will be created from the specified setter.
/// This is thread-safe and ensures only 1 <see cref="IHystrixThreadPool"/> per <see cref="HystrixThreadPoolKey"/>.
/// </summary>
/// <param name="threadPoolKey">Key of the requested thread pool.</param>
/// <param name="setter">The setter to construct the new thread pool.</param>
/// <returns>A new or an existing thread pool instance.</returns>
internal static IHystrixThreadPool GetInstance(HystrixThreadPoolKey threadPoolKey, HystrixThreadPoolPropertiesSetter setter)
{
return(ThreadPools.GetOrAdd(threadPoolKey, w => new HystrixThreadPoolDefault(threadPoolKey, setter)));
}
/// <summary>
/// Gets the <see cref="HystrixThreadPoolMetrics"/> instance for a given <see cref="HystrixThreadPoolKey"/> or null if none exists.
/// </summary>
/// <param name="key">Key of the tracked thread pool.</param>
/// <returns>A thread pool metrics instance of the specified thread pool.</returns>
public static HystrixThreadPoolMetrics GetInstance(HystrixThreadPoolKey key)
{
HystrixThreadPoolMetrics threadPoolMetrics = null;
Metrics.TryGetValue(key, out threadPoolMetrics);
return threadPoolMetrics;
}
