/// <summary>
/// Gets the cumulative value for the specified <see cref="RollingNumberEvent"/>.
/// (Returns <see cref="LongAdder.Sum()"/> for Counter types and <see cref="LongMaxUpdater.Max()"/> for MaxUpdater types.)
/// </summary>
/// <param name="type">The specified event.</param>
/// <returns>The cumulative value for the specified event.</returns>
public long Get(RollingNumberEvent type)
{
if (type.IsCounter())
{
return this.adderForCounterType[(int)type].Sum();
}
else if (type.IsMaxUpdater())
{
return this.updaterForCounterType[(int)type].Max();
}
else
{
throw new ArgumentException(string.Format("Unknown type of event: {0}", type), "type");
}
}
/// <summary>
/// Gets the <see cref="LongAdder"/> instance for the specified event.
/// </summary>
/// <param name="type">The specified event.</param>
/// <returns>The <see cref="LongAdder"/> instance for the specified event.</returns>
public LongAdder GetAdder(RollingNumberEvent type)
{
if (!type.IsCounter())
{
throw new ArgumentException(string.Format("Type is not a Counter: {0}", type), "type");
}
return this.adderForCounterType[(int)type];
}
/// <summary>
/// Get an array of values for all buckets in the rolling counter for the given <see cref="RollingNumberEvent"/> type.
/// Index 0 is the oldest bucket.
/// The <see cref="RollingNumberEvent"/> must be a "Counter" type (HystrixRollingNumberEvent.IsCounter() == true).
/// </summary>
/// <param name="type">HystrixRollingNumberEvent defining which counter to retrieve values from</param>
/// <returns>Array of values from each of the rolling buckets for given <see cref="RollingNumberEvent"/> counter type</returns>
public long[] GetValues(RollingNumberEvent type)
{
if (this.GetCurrentBucket() == null)
{
return new long[0];
}
// get buckets as an array (which is a copy of the current state at this point in time)
Bucket[] bucketArray = this.buckets.GetArray();
// we have bucket data so we'll return an array of values for all buckets
long[] values = new long[bucketArray.Length];
int i = 0;
foreach (Bucket bucket in bucketArray)
{
if (type.IsCounter())
{
values[i++] = bucket.GetAdder(type).Sum();
}
else if (type.IsMaxUpdater())
{
values[i++] = bucket.GetMaxUpdater(type).Max();
}
}
return values;
}
