Package org.apache.hadoop.io.retry

Class AsyncCallHandler

java.lang.Object

org.apache.hadoop.io.retry.AsyncCallHandler

@Private
public class AsyncCallHandler
extends Object

Handle async calls.

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
AsyncCallHandler()

Method Summary

Modifier and Type	Method	Description
static <R, T extends Throwable> AsyncGet<R,T>	getAsyncReturn()
static long	getGracePeriod()
static void	setLowerLayerAsyncReturn(AsyncGet<?,Exception> asyncReturn)	For the lower rpc layers to set the async return value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOG

public static final org.slf4j.Logger LOG

Constructor Details

AsyncCallHandler

public AsyncCallHandler()

Method Details

getAsyncReturn

@Unstable
public static <R,
T extends Throwable> AsyncGet<R,T> getAsyncReturn()

Type Parameters:

T - T.

R - R.

Returns:

the async return value from AsyncCallHandler.

setLowerLayerAsyncReturn

@Unstable
public static void setLowerLayerAsyncReturn(AsyncGet<?,Exception> asyncReturn)

For the lower rpc layers to set the async return value.

Parameters:

asyncReturn - asyncReturn.

getGracePeriod

@VisibleForTesting
public static long getGracePeriod()