org.apache.cassandra.net

Class RequestCallbacks

java.lang.Object

org.apache.cassandra.net.RequestCallbacks

public class RequestCallbacks
extends java.lang.Object

An expiring map of request callbacks. Used to match response (id, peer) pairs to corresponding RequestCallbacks, or, if said responses don't arrive in a timely manner (within verb's timeout), to expire the callbacks. Since we reuse the same request id for multiple messages now, the map is keyed by (id, peer) tuples rather than just id as it used to before 4.0.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RequestCallbacks.CallbackInfo

Method Summary

Modifier and Type	Method and Description
void	addWithExpiration(AbstractWriteResponseHandler<?> cb, Message<?> message, Replica to, ConsistencyLevel consistencyLevel, boolean allowHints)
static long	defaultExpirationInterval()
void	onDiscardOnClose(Message<?> message, InetAddressAndPort peer) A message was not sent because the connection was forcibly closed
void	onExpired(Message<?> message, InetAddressAndPort peer) A message was not serialized to a frame because it had expired
void	onFailedSerialize(Message<?> message, InetAddressAndPort peer, int messagingVersion, int bytesWrittenToNetwork, java.lang.Throwable failure) A message was not fully or successfully serialized to a frame because an exception was thrown
void	onOverloaded(Message<?> message, InetAddressAndPort peer) A message was not enqueued to the link because too many messages are already waiting to send
RequestCallbacks.CallbackInfo	remove(long id, InetAddressAndPort peer) Remove and return the RequestCallbacks.CallbackInfo associated with given id and peer, if known.
void	removeAndRespond(long id, InetAddressAndPort peer, Message message)
void	unsafeClear()

Methods inherited from class java.lang.Object

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

Method Detail

remove

@Nullable
public RequestCallbacks.CallbackInfo remove(long id,
                                                      InetAddressAndPort peer)

Remove and return the RequestCallbacks.CallbackInfo associated with given id and peer, if known.

addWithExpiration

public void addWithExpiration(AbstractWriteResponseHandler<?> cb,
                              Message<?> message,
                              Replica to,
                              ConsistencyLevel consistencyLevel,
                              boolean allowHints)

removeAndRespond

public void removeAndRespond(long id,
                             InetAddressAndPort peer,
                             Message message)

unsafeClear

public void unsafeClear()

onOverloaded

public void onOverloaded(Message<?> message,
                         InetAddressAndPort peer)

A message was not enqueued to the link because too many messages are already waiting to send

onExpired

public void onExpired(Message<?> message,
                      InetAddressAndPort peer)

A message was not serialized to a frame because it had expired

onFailedSerialize

public void onFailedSerialize(Message<?> message,
                              InetAddressAndPort peer,
                              int messagingVersion,
                              int bytesWrittenToNetwork,
                              java.lang.Throwable failure)

A message was not fully or successfully serialized to a frame because an exception was thrown

onDiscardOnClose

public void onDiscardOnClose(Message<?> message,
                             InetAddressAndPort peer)

A message was not sent because the connection was forcibly closed

defaultExpirationInterval

public static long defaultExpirationInterval()