Package com.linecorp.armeria.common.grpc.protocol

Class ArmeriaMessageFramer

java.lang.Object

com.linecorp.armeria.common.grpc.protocol.ArmeriaMessageFramer

All Implemented Interfaces:

AutoCloseable

@UnstableApi
public class ArmeriaMessageFramer
extends Object
implements AutoCloseable

A framer of messages for transport with the gRPC wire protocol. See gRPC Wire Format for more detail on the protocol.

The logic has mostly been copied from io.grpc.internal.MessageFramer, while removing the buffer abstraction in favor of using ByteBuf directly. The code has been vastly simplified due to the lack of support for arbitrary InputStreams.

Field Summary

Fields

Modifier and Type	Field	Description
static int	NO_MAX_OUTBOUND_MESSAGE_SIZE

Constructor Summary

Constructors

Constructor	Description
ArmeriaMessageFramer(ByteBufAllocator alloc, int maxOutboundMessageSize, boolean encodeBase64)	Constructs an ArmeriaMessageFramer to write messages to a gRPC request or response.

Method Summary

Modifier and Type	Method	Description
void	close()
boolean	isClosed()	Indicates whether or not this framer has been closed via a call to either close().
void	setCompressor(@Nullable Compressor compressor)	Sets the Compressor.
void	setMessageCompression(boolean messageCompression)	Enables or disables message compression.
HttpData	writePayload(ByteBuf message)	Writes out a payload message.
HttpData	writePayload(ByteBuf message, boolean webTrailers)	Writes out a payload message.

Methods inherited from class java.lang.Object

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

Field Details

NO_MAX_OUTBOUND_MESSAGE_SIZE

public static final int NO_MAX_OUTBOUND_MESSAGE_SIZE

See Also:

Constant Field Values

Constructor Details

ArmeriaMessageFramer

public ArmeriaMessageFramer(ByteBufAllocator alloc,
 int maxOutboundMessageSize,
 boolean encodeBase64)

Constructs an ArmeriaMessageFramer to write messages to a gRPC request or response.

Method Details

writePayload

public HttpData writePayload(ByteBuf message)

Writes out a payload message.

Parameters:

message - the message to be written out. Ownership is taken by ArmeriaMessageFramer.

Returns:

an HttpData with the framed payload. Ownership is passed to caller.

writePayload

public HttpData writePayload(ByteBuf message,
 boolean webTrailers)

Writes out a payload message.

Parameters:

message - the message to be written out. Ownership is taken by ArmeriaMessageFramer.

webTrailers - tells whether the payload is web trailers

Returns:

an HttpData with the framed payload. Ownership is passed to caller. If the specified webTrailers is true, HttpObject.isEndOfStream() returns true.

setMessageCompression

public void setMessageCompression(boolean messageCompression)

Enables or disables message compression.

Parameters:

messageCompression - whether to enable message compression.

setCompressor

public void setCompressor(@Nullable
 @Nullable Compressor compressor)

Sets the Compressor.

isClosed

public boolean isClosed()

Indicates whether or not this framer has been closed via a call to either close().

close

public void close()

Specified by:

close in interface AutoCloseable