org.apache.hadoop.hbase.ipc

Class RpcClient.Connection

java.lang.Object

java.lang.Thread

org.apache.hadoop.hbase.ipc.RpcClient.Connection

All Implemented Interfaces:

Runnable

Enclosing class:

RpcClient

protected class RpcClient.Connection
extends Thread

Thread that reads responses and notifies callers. Each connection owns a socket connected to a remote address. Calls are multiplexed through this socket: responses may be delivered out of order.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	RpcClient.Connection.PingInputStream This class sends a ping to the remote side when timeout on reading.

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
protected ConcurrentSkipListMap<Integer,RpcClient.Call>	calls
protected IOException	closeException
protected DataInputStream	in
protected AtomicLong	lastActivity
protected DataOutputStream	out
protected RpcClient.ConnectionId	remoteId
protected AtomicBoolean	shouldCloseConnection
protected Socket	socket

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addCall(RpcClient.Call call) Add a call to this connection's call queue and notify a listener; synchronized.
protected void	cleanupCalls()
protected void	cleanupCalls(long rpcTimeout)
protected void	close() Close the connection.
protected void	closeConnection()
InetSocketAddress	getRemoteAddress()
protected void	markClosed(IOException e)
protected void	readResponse()
void	run()
protected void	sendPing()
protected void	setupConnection()
protected void	setupIOstreams()
protected void	touch() Update lastActivity with the current time.
protected boolean	waitForWork()
protected void	writeRequest(RpcClient.Call call, int priority) Initiates a call by sending the parameter to the remote server.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

remoteId

protected RpcClient.ConnectionId remoteId

socket

protected Socket socket

in

protected DataInputStream in

out

protected DataOutputStream out

calls

protected final ConcurrentSkipListMap<Integer,RpcClient.Call> calls

lastActivity

protected final AtomicLong lastActivity

shouldCloseConnection

protected final AtomicBoolean shouldCloseConnection

closeException

protected IOException closeException

Method Detail

touch

protected void touch()

Update lastActivity with the current time.

addCall

protected void addCall(RpcClient.Call call)

Add a call to this connection's call queue and notify a listener; synchronized. If the connection is dead, the call is not added, and the caller is notified. This function can return a connection that is already marked as 'shouldCloseConnection' It is up to the user code to check this status.

Parameters:

call - to add

setupConnection

protected void setupConnection()
                        throws IOException

Throws:

IOException

closeConnection

protected void closeConnection()

waitForWork

protected boolean waitForWork()

getRemoteAddress

public InetSocketAddress getRemoteAddress()

sendPing

protected void sendPing()
                 throws IOException

Throws:

IOException

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

setupIOstreams

protected void setupIOstreams()
                       throws IOException,
                              InterruptedException

Throws:

IOException

InterruptedException

close

protected void close()

Close the connection.

writeRequest

protected void writeRequest(RpcClient.Call call,
                int priority)

Initiates a call by sending the parameter to the remote server. Note: this is not called from the Connection thread, but by other threads.

Parameters:

call -

priority -

See Also:

readResponse()

readResponse

protected void readResponse()

markClosed

protected void markClosed(IOException e)

cleanupCalls

protected void cleanupCalls()

cleanupCalls

protected void cleanupCalls(long rpcTimeout)