Package org.apache.hadoop.io.retry

Class RetryInvocationHandler<T>

java.lang.Object

org.apache.hadoop.io.retry.RetryInvocationHandler<T>

All Implemented Interfaces:

Closeable, AutoCloseable, InvocationHandler, RpcInvocationHandler

Direct Known Subclasses:

LossyRetryInvocationHandler

@Private
public class RetryInvocationHandler<T>
extends Object
implements RpcInvocationHandler

A RpcInvocationHandler which supports client side retry .

Field Summary

Fields

Modifier and Type	Field	Description
static final org.slf4j.Logger	LOG
static final ThreadLocal<Boolean>	SET_CALL_ID_FOR_TEST

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RetryInvocationHandler(FailoverProxyProvider<T> proxyProvider, RetryPolicy retryPolicy)
protected	RetryInvocationHandler(FailoverProxyProvider<T> proxyProvider, RetryPolicy defaultPolicy, Map<String,RetryPolicy> methodNameToPolicyMap)

Method Summary

Modifier and Type	Method	Description
void	close()
Client.ConnectionId	getConnectionId()	Returns the connection id associated with the InvocationHandler instance.
FailoverProxyProvider<T>	getProxyProvider()
Object	invoke(Object proxy, Method method, Object[] args)
protected Object	invokeMethod(Method method, Object[] args)

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

SET_CALL_ID_FOR_TEST

@VisibleForTesting
public static final ThreadLocal<Boolean> SET_CALL_ID_FOR_TEST

Constructor Details

RetryInvocationHandler

protected RetryInvocationHandler(FailoverProxyProvider<T> proxyProvider,
 RetryPolicy retryPolicy)

RetryInvocationHandler

protected RetryInvocationHandler(FailoverProxyProvider<T> proxyProvider,
 RetryPolicy defaultPolicy,
 Map<String,RetryPolicy> methodNameToPolicyMap)

Method Details

invoke

public Object invoke(Object proxy,
 Method method,
 Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

invokeMethod

protected Object invokeMethod(Method method,
 Object[] args)
                       throws Throwable

Throws:

Throwable

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

getConnectionId

public Client.ConnectionId getConnectionId()

Description copied from interface: RpcInvocationHandler

Returns the connection id associated with the InvocationHandler instance.

Specified by:

getConnectionId in interface RpcInvocationHandler

Returns:

ConnectionId

getProxyProvider

@VisibleForTesting
public FailoverProxyProvider<T> getProxyProvider()