Class NetLogClient.LogConnectionMgr

java.lang.Object
  java.lang.Thread
      NetLogClient.LogConnectionMgr

All Implemented Interfaces:

Runnable

Enclosing class:

NetLogClient

private class NetLogClient.LogConnectionMgr

extends Thread

This inner class is designed to maintain the socket connection from the NetLogClient to the NetLogServer. The class will test the connection every so-many seconds, and if the connection is broken, it will attempt to reconnect it, waiting so-many seconds between attempts.

Author:

Kevin Thompson [antiduh@csh.rit.edu]

Field Summary

static int	CHECK_WAIT_TIME This is the amount of time (in seconds) to wait between checks.
private byte[]	nop The string to write as the 'no operation' operation command.
static int	RECONNECT_WAIT_TIME This is the amount of time (in seconds) to wait between reconnection attempts.
private OutputStream	testOut Our output stream for testing the connection.
private boolean	wasConnected Used to keep track of whether or not the client was connected.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

NetLogClient.LogConnectionMgr()
Initialize the class by saving the OutputStream and figuring out the connections initial state.

Method Summary

void	reconnect() Loops forever trying to reconnect the socket.
void	run() Run in an infinite loop testing the connection, reconnecting it when the connection fails.
boolean	testConnected() Tests the connection to see if it is connected or not.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

CHECK_WAIT_TIME

public static final int CHECK_WAIT_TIME

This is the amount of time (in seconds) to wait between checks.

See Also:

Constant Field Values

RECONNECT_WAIT_TIME

public static final int RECONNECT_WAIT_TIME

This is the amount of time (in seconds) to wait between reconnection attempts.

See Also:

Constant Field Values

nop

private final byte[] nop

The string to write as the 'no operation' operation command.

wasConnected

private boolean wasConnected

Used to keep track of whether or not the client was connected. This is used for determing if the connection state changed.

testOut

private OutputStream testOut

Our output stream for testing the connection.

Constructor Detail

NetLogClient.LogConnectionMgr

public NetLogClient.LogConnectionMgr()

Initialize the class by saving the OutputStream and figuring out the connections initial state.

Method Detail

run

public void run()

Run in an infinite loop testing the connection, reconnecting it when the connection fails.

testConnected

public boolean testConnected()

Tests the connection to see if it is connected or not. Due to a quirk with the TINI's implementation of the Java 1.4 SDK, there is no Socket.isConnected() method. Therefore, to test the connection, we need to actually try to send information and see if the Socket throws an exception.

reconnect

public void reconnect()

Loops forever trying to reconnect the socket. Once the socket is reconnected, it stops.