Class GrpcWriteStream<T>
- java.lang.Object
-
- io.vertx.grpc.stub.GrpcWriteStream<T>
-
- All Implemented Interfaces:
StreamBase
,WriteStream<T>
public class GrpcWriteStream<T> extends Object implements WriteStream<T>
- Author:
- ecatala
-
-
Constructor Summary
Constructors Constructor Description GrpcWriteStream(StreamObserver<T> observer)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description WriteStream<T>
drainHandler(Handler<Void> hndlr)
Set a drain handler on the stream.Future<Void>
end()
Ends the stream.WriteStream<T>
exceptionHandler(Handler<Throwable> hndlr)
Set an exception handler on the write stream.WriteStream<T>
setWriteQueueMaxSize(int i)
Set the maximum size of the write queue tomaxSize
.StreamObserver<T>
streamObserver()
Low level control of the observer for advanced use cases.Future<Void>
write(T data)
Write some data to the stream.boolean
writeQueueFull()
This will returntrue
if there are more bytes in the write queue than the value set usingWriteStream.setWriteQueueMaxSize(int)
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface io.vertx.core.streams.WriteStream
end
-
-
-
-
Constructor Detail
-
GrpcWriteStream
public GrpcWriteStream(StreamObserver<T> observer)
-
-
Method Detail
-
exceptionHandler
public WriteStream<T> exceptionHandler(Handler<Throwable> hndlr)
Description copied from interface:WriteStream
Set an exception handler on the write stream.- Specified by:
exceptionHandler
in interfaceStreamBase
- Specified by:
exceptionHandler
in interfaceWriteStream<T>
- Parameters:
hndlr
- the exception handler- Returns:
- a reference to this, so the API can be used fluently
-
write
public Future<Void> write(T data)
Description copied from interface:WriteStream
Write some data to the stream.The data is usually put on an internal write queue, and the write actually happens asynchronously. To avoid running out of memory by putting too much on the write queue, check the
WriteStream.writeQueueFull()
method before writing. This is done automatically if using aPipe
.When the
data
is moved from the queue to the actual medium, the returnedFuture
will be completed with the write result, e.g the future is succeeded when a server HTTP response buffer is written to the socket and failed if the remote client has closed the socket while the data was still pending for write.- Specified by:
write
in interfaceWriteStream<T>
- Parameters:
data
- the data to write- Returns:
- a future completed with the write result
-
end
public Future<Void> end()
Description copied from interface:WriteStream
Ends the stream.Once the stream has ended, it cannot be used any more.
- Specified by:
end
in interfaceWriteStream<T>
- Returns:
- a future completed with the result
-
setWriteQueueMaxSize
public WriteStream<T> setWriteQueueMaxSize(int i)
Description copied from interface:WriteStream
Set the maximum size of the write queue tomaxSize
. You will still be able to write to the stream even if there is more thanmaxSize
items in the write queue. This is used as an indicator by classes such asPipe
to provide flow control. The value is defined by the implementation of the stream, e.g in bytes for aNetSocket
, etc...- Specified by:
setWriteQueueMaxSize
in interfaceWriteStream<T>
- Parameters:
i
- the max size of the write stream- Returns:
- a reference to this, so the API can be used fluently
-
writeQueueFull
public boolean writeQueueFull()
Description copied from interface:WriteStream
This will returntrue
if there are more bytes in the write queue than the value set usingWriteStream.setWriteQueueMaxSize(int)
- Specified by:
writeQueueFull
in interfaceWriteStream<T>
- Returns:
true
if write queue is full
-
drainHandler
public WriteStream<T> drainHandler(Handler<Void> hndlr)
Description copied from interface:WriteStream
Set a drain handler on the stream. If the write queue is full, then the handler will be called when the write queue is ready to accept buffers again. SeePipe
for an example of this being used.The stream implementation defines when the drain handler, for example it could be when the queue size has been reduced to
maxSize / 2
.- Specified by:
drainHandler
in interfaceWriteStream<T>
- Parameters:
hndlr
- the handler- Returns:
- a reference to this, so the API can be used fluently
-
streamObserver
public StreamObserver<T> streamObserver()
Low level control of the observer for advanced use cases.
-
-