org.neo4j.bolt.v1.transport

Class BoltMessagingProtocolV1Handler

java.lang.Object

org.neo4j.bolt.v1.transport.BoltMessagingProtocolV1Handler

All Implemented Interfaces:

BoltMessagingProtocolHandler

public class BoltMessagingProtocolV1Handler
extends Object
implements BoltMessagingProtocolHandler

Implements version one of the Bolt Protocol when transported over a socket. This means this class will handle a simple message framing protocol and forward messages to the messaging protocol implementation, version 1.

Versions of the framing protocol are lock-step with the messaging protocol versioning.

Field Summary

Fields

Modifier and Type	Field and Description
static int	VERSION

Constructor Summary

Constructors

Constructor and Description
BoltMessagingProtocolV1Handler(BoltChannel boltChannel, BoltWorker worker, org.neo4j.kernel.impl.logging.LogService logging)

Method Summary

Modifier and Type	Method and Description
void	close() Close this instance of the protocol, disposing of any held resources
void	handle(io.netty.channel.ChannelHandlerContext channelContext, io.netty.buffer.ByteBuf data) Handle an incoming network packet.
int	version() Used for version negotiation

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final int VERSION

See Also:

Constant Field Values

Constructor Detail

BoltMessagingProtocolV1Handler

public BoltMessagingProtocolV1Handler(BoltChannel boltChannel,
                                      BoltWorker worker,
                                      org.neo4j.kernel.impl.logging.LogService logging)

Method Detail

handle

public void handle(io.netty.channel.ChannelHandlerContext channelContext,
                   io.netty.buffer.ByteBuf data)
            throws IOException

Handle an incoming network packet. We currently deal with the chunked input by building up full messages in RAM before we deserialize them. This is fine with most messages, but will become a problem with very large parameters and so on. The next step will be to write a new protocol V1 deserializer that can do incremental deserialization, see the Netty HTTP parser for an example.

Specified by:

handle in interface BoltMessagingProtocolHandler

Throws:

IOException

version

public int version()

Description copied from interface: BoltMessagingProtocolHandler

Used for version negotiation

Specified by:

version in interface BoltMessagingProtocolHandler

close

public void close()

Description copied from interface: BoltMessagingProtocolHandler

Close this instance of the protocol, disposing of any held resources

Specified by:

close in interface BoltMessagingProtocolHandler