TimeToFirstByteEstimator

Kotlin |Java

@UnstableApi
public interface TimeToFirstByteEstimator

Known direct subclasses

`ExponentialWeightedAverageTimeToFirstByteEstimator`	Implementation of `TimeToFirstByteEstimator` based on exponential weighted average.
`PercentileTimeToFirstByteEstimator`	Implementation of `TimeToFirstByteEstimator` that returns a configured percentile of a sliding window of collected response times.

Provides an estimate of the time to first byte of a transfer.

Summary

Public methods
`abstract long`	`getTimeToFirstByteEstimateUs()` Returns the estimated time to first byte of the response body, in microseconds, or `TIME_UNSET` if no estimate is available.
`abstract void`	`onTransferInitializing(DataSpec dataSpec)` Called when a transfer is being initialized.
`abstract void`	`onTransferStart(DataSpec dataSpec)` Called when a transfer starts.
`abstract void`	`reset()` Resets the estimator.

abstract long getTimeToFirstByteEstimateUs()

Returns the estimated time to first byte of the response body, in microseconds, or TIME_UNSET if no estimate is available.

abstract void onTransferInitializing(DataSpec dataSpec)

Called when a transfer is being initialized.

Parameters
`DataSpec dataSpec`	Describes the data for which the transfer is initialized.

abstract void onTransferStart(DataSpec dataSpec)

Called when a transfer starts.

Parameters
`DataSpec dataSpec`	Describes the data being transferred.

abstract void reset()

Resets the estimator.