Package io.grpc.internal

Class ApplicationThreadDeframerListener

java.lang.Object

io.grpc.internal.ApplicationThreadDeframerListener

All Implemented Interfaces:

MessageDeframer.Listener

final class ApplicationThreadDeframerListener
extends Object
implements MessageDeframer.Listener

Listener for when deframing on the application thread, which calls the real listener on the transport thread. May only be called on the application thread.

Does not call the delegate's messagesAvailable(). It's expected that messageReadQueuePoll() is called on the application thread from within a message producer managed elsewhere.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ApplicationThreadDeframerListener.TransportExecutor

Field Summary

Fields

Modifier and Type	Field	Description
private final Queue<InputStream>	messageReadQueue	Queue for messages returned by the deframer when deframing in the application thread.
private final MessageDeframer.Listener	storedListener
private final ApplicationThreadDeframerListener.TransportExecutor	transportExecutor

Constructor Summary

Constructors

Constructor	Description
ApplicationThreadDeframerListener(MessageDeframer.Listener listener, ApplicationThreadDeframerListener.TransportExecutor transportExecutor)

Method Summary

Modifier and Type	Method	Description
void	bytesRead(int numBytes)	Called when the given number of bytes has been read from the input source of the deframer.
void	deframeFailed(Throwable cause)	Called when a MessageDeframer.deframe(ReadableBuffer) operation failed.
void	deframerClosed(boolean hasPartialMessage)	Called when the deframer closes.
InputStream	messageReadQueuePoll()
void	messagesAvailable(StreamListener.MessageProducer producer)	Called to deliver the next complete message.

Methods inherited from class java.lang.Object

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

Field Details

transportExecutor

private final ApplicationThreadDeframerListener.TransportExecutor transportExecutor

storedListener

private final MessageDeframer.Listener storedListener

messageReadQueue

private final Queue<InputStream> messageReadQueue

Queue for messages returned by the deframer when deframing in the application thread.

Constructor Details

ApplicationThreadDeframerListener

public ApplicationThreadDeframerListener(MessageDeframer.Listener listener,
 ApplicationThreadDeframerListener.TransportExecutor transportExecutor)

Method Details

bytesRead

public void bytesRead(int numBytes)

Description copied from interface: MessageDeframer.Listener

Called when the given number of bytes has been read from the input source of the deframer. This is typically used to indicate to the underlying transport that more data can be accepted.

Specified by:

bytesRead in interface MessageDeframer.Listener

Parameters:

numBytes - the number of bytes read from the deframer's input source.

messagesAvailable

public void messagesAvailable(StreamListener.MessageProducer producer)

Description copied from interface: MessageDeframer.Listener

Called to deliver the next complete message.

Specified by:

messagesAvailable in interface MessageDeframer.Listener

Parameters:

producer - single message producer wrapping the message.

deframerClosed

public void deframerClosed(boolean hasPartialMessage)

Description copied from interface: MessageDeframer.Listener

Called when the deframer closes.

Specified by:

deframerClosed in interface MessageDeframer.Listener

Parameters:

hasPartialMessage - whether the deframer contained an incomplete message at closing.

deframeFailed

public void deframeFailed(Throwable cause)

Description copied from interface: MessageDeframer.Listener

Called when a MessageDeframer.deframe(ReadableBuffer) operation failed.

Specified by:

deframeFailed in interface MessageDeframer.Listener

Parameters:

cause - the actual failure

messageReadQueuePoll

public InputStream messageReadQueuePoll()