org.mbari.siam.foce.deployed
Class IOMapper

java.lang.Object
  org.mbari.siam.foce.deployed.IOMapper

public class IOMapper
extends java.lang.Object

IOMapper opens a socket to a native daemon, written in 'C', that does port-level I/O on behalf of the Java applications.

Author:

Bob Herlien

Field Summary

protected java.io.OutputStream	_out
protected static IOMapper	_theIOMapper
protected static int	EXEC_TMOUT
protected static java.lang.String	IOPORT_EXEC
protected static int	IOPORT_PORT

Method Summary

void	close()
static IOMapper	getInstance() Method to get singleton instance.
java.lang.String	transact(java.lang.String cmd) Perform one I/O transaction with the I/O server, return String result.

Methods inherited from class java.lang.Object

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

Field Detail

IOPORT_EXEC

protected static final java.lang.String IOPORT_EXEC

See Also:

Constant Field Values

EXEC_TMOUT

protected static final int EXEC_TMOUT

See Also:

Constant Field Values

IOPORT_PORT

protected static final int IOPORT_PORT

See Also:

Constant Field Values

_theIOMapper

protected static IOMapper _theIOMapper

_out

protected java.io.OutputStream _out

Method Detail

getInstance

public static IOMapper getInstance()
                            throws java.io.IOException,
                                   java.net.UnknownHostException

Method to get singleton instance.

Throws:

java.io.IOException

java.net.UnknownHostException

transact

public java.lang.String transact(java.lang.String cmd)
                          throws java.io.IOException

Perform one I/O transaction with the I/O server, return String result. Check to make sure return string starts with "OK". If so, return remainder of string. Else, throw IOException with return string as message.

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Throws:

java.io.IOException