org.neo4j.com
Class Server<M,R>

java.lang.Object
  org.neo4j.com.Protocol
      org.neo4j.com.Server<M,R>

All Implemented Interfaces:

org.jboss.netty.channel.ChannelPipelineFactory

Direct Known Subclasses:

MasterServer

public abstract class Server<M,R>
extends Protocol
implements org.jboss.netty.channel.ChannelPipelineFactory

Sits on the master side, receiving serialized requests from slaves (via Client). Delegates actual work to an instance of a specified communication interface, injected in the constructor.

Nested Class Summary

Nested classes/interfaces inherited from class org.neo4j.com.Protocol

Protocol.FileStreamsDeserializer

Field Summary

static int	DEFAULT_BACKUP_PORT
static int	DEFAULT_MAX_NUMBER_OF_CONCURRENT_TRANSACTIONS

Fields inherited from class org.neo4j.com.Protocol

DEFAULT_FRAME_LENGTH, EMPTY_SERIALIZER, INTEGER_DESERIALIZER, INTEGER_SERIALIZER, LONG_SERIALIZER, MEGA, PORT, VOID_DESERIALIZER, VOID_SERIALIZER

Constructor Summary

Server(M realMaster, int port, String storeDir, int frameLength, byte applicationProtocolVersion, int maxNumberOfConcurrentTransactions, int oldChannelThreshold, TxChecksumVerifier txVerifier)

Method Summary

protected abstract void	finishOffChannel(org.jboss.netty.channel.Channel channel, SlaveContext context)
Map<org.jboss.netty.channel.Channel,SlaveContext>	getConnectedSlaveChannels()
protected byte	getInternalProtocolVersion() Only exposed so that tests can control it.
protected M	getMaster()
org.jboss.netty.channel.ChannelPipeline	getPipeline()
protected abstract RequestType<M>	getRequestContext(byte id)
protected void	handleRequest(org.jboss.netty.buffer.ChannelBuffer buffer, org.jboss.netty.channel.Channel channel)
protected org.jboss.netty.buffer.ChannelBuffer	mapSlave(org.jboss.netty.channel.Channel channel, SlaveContext slave, RequestType<M> type)
protected SlaveContext	readContext(org.jboss.netty.buffer.ChannelBuffer buffer)
protected void	responseWritten(RequestType<M> type, org.jboss.netty.channel.Channel channel, SlaveContext context)
protected boolean	shouldLogFailureToFinishOffChannel(Throwable failure)
void	shutdown()
protected void	tryToFinishOffChannel(org.jboss.netty.channel.Channel channel)
protected void	tryToFinishOffChannel(org.jboss.netty.channel.Channel channel, SlaveContext slave)
protected void	unmapSlave(org.jboss.netty.channel.Channel channel, SlaveContext slave)
protected void	writeFailureResponse(Throwable exception, ChunkingChannelBuffer buffer)

Methods inherited from class org.neo4j.com.Protocol

addLengthFieldPipes, readBoolean, readString, readString, writeChars, writeString

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BACKUP_PORT

public static final int DEFAULT_BACKUP_PORT

See Also:

Constant Field Values

DEFAULT_MAX_NUMBER_OF_CONCURRENT_TRANSACTIONS

public static final int DEFAULT_MAX_NUMBER_OF_CONCURRENT_TRANSACTIONS

See Also:

Constant Field Values

Constructor Detail

Server

public Server(M realMaster,
              int port,
              String storeDir,
              int frameLength,
              byte applicationProtocolVersion,
              int maxNumberOfConcurrentTransactions,
              int oldChannelThreshold,
              TxChecksumVerifier txVerifier)

Method Detail

getInternalProtocolVersion

protected byte getInternalProtocolVersion()

Only exposed so that tests can control it. It's not configurable really.

getPipeline

public org.jboss.netty.channel.ChannelPipeline getPipeline()
                                                    throws Exception

Specified by:

getPipeline in interface org.jboss.netty.channel.ChannelPipelineFactory

Throws:

Exception

tryToFinishOffChannel

protected void tryToFinishOffChannel(org.jboss.netty.channel.Channel channel)

tryToFinishOffChannel

protected void tryToFinishOffChannel(org.jboss.netty.channel.Channel channel,
                                     SlaveContext slave)

shouldLogFailureToFinishOffChannel

protected boolean shouldLogFailureToFinishOffChannel(Throwable failure)

handleRequest

protected void handleRequest(org.jboss.netty.buffer.ChannelBuffer buffer,
                             org.jboss.netty.channel.Channel channel)
                      throws IOException

Throws:

IOException

writeFailureResponse

protected void writeFailureResponse(Throwable exception,
                                    ChunkingChannelBuffer buffer)

responseWritten

protected void responseWritten(RequestType<M> type,
                               org.jboss.netty.channel.Channel channel,
                               SlaveContext context)

readContext

protected SlaveContext readContext(org.jboss.netty.buffer.ChannelBuffer buffer)

getRequestContext

protected abstract RequestType<M> getRequestContext(byte id)

mapSlave

protected org.jboss.netty.buffer.ChannelBuffer mapSlave(org.jboss.netty.channel.Channel channel,
                                                        SlaveContext slave,
                                                        RequestType<M> type)

unmapSlave

protected void unmapSlave(org.jboss.netty.channel.Channel channel,
                          SlaveContext slave)

getMaster

protected M getMaster()

shutdown

public void shutdown()

finishOffChannel

protected abstract void finishOffChannel(org.jboss.netty.channel.Channel channel,
                                         SlaveContext context)

getConnectedSlaveChannels

public Map<org.jboss.netty.channel.Channel,SlaveContext> getConnectedSlaveChannels()