com.nt.udc.ei.transport

Class UdpEITransport

java.lang.Object

com.nt.udc.ndk.node.EITransport

com.nt.udc.ei.transport.UdpEITransport

All Implemented Interfaces:

DataProviderIfc, DCTransport, FileDataProviderIfc, java.lang.Runnable

public class UdpEITransport
extends EITransport

This class will create a socket on the given port and listen for incoming DatagramPacket objects. Each packet will be placed within a QueuedUdpPacket object and stored in a queue until the transport's DataReceiver requests data via the getData() or getBulkData() method. At that time, a QueuedUdpPacket is popped off the queue and given to the transport's DCRecordFactoryIfc object via the factory's getRecords() method. The DCFieldContainer objects returned from the factory will then be supplied to the DataReceiver.

Field Summary

Fields inherited from class com.nt.udc.ndk.node.EITransport

dataReceiver, fdChecked, filedataReceiver, fileduplicateCheck, fileToProcess, inputCount, lockFile, movedFile, node, pollingInterval, processing, processingData, running

Constructor Summary

Constructors

Constructor and Description
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, int prt) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, int prt, int pktSize) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, int prt, int pktSize, int socketBufSize) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, int prt, int pktSize) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, java.lang.String host, int prt, int pktSize) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, java.lang.String host, int prt, int pktSize, int idleRecWriteTime) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, java.lang.String host, int prt, int pktSize, int idleRecWriteTime, int socketBufSize) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, java.lang.String host, int prt) Construct a new UdpEITransport to be used within the specified EINode.
UdpEITransport(EINode einode, DCRecordFactoryIfc factory, java.lang.String host, int prt, int pktSize) Construct a new UdpEITransport to be used within the specified EINode.

Method Summary

Methods

Modifier and Type	Method and Description
void	beginReconfigure() Sets this transport into a reconfiguration state.
void	endReconfigure() Ends reconfiguration state, allowing data to be accessed again.
DCFieldContainer[]	getBulkData() This method is used by the DataReceiver to fetch a set of DCFieldContainer objects.
DCFieldContainer	getData() This method is used by the DataReceiver to fetch a single
protected void	initMesManager(int idleRecWriteTime)
boolean	isDataAvailable() This method is used by the DataReceiver to ask this provider if data is available.
boolean	isHealthy() This method is used to check if the transport is fully functional.
boolean	isReconfiguring() Returns value of reconfiguring flag.
boolean	isShutdownOnError() Indicates whether transport should shutdown upon processing error
void	reconfigure(DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, int radius_port) Reconfigures the record factory and queue size of this UDP transport.
void	reconfigure(DCRecordFactoryIfc factory, ResponseDatagramFactory responseFactory, int port, int idleRecWrTime)
void	resetLoggingState() Resets state for conditionally logged messages.
void	run() This method is used when the EITransport runs within its own thread.
void	send(java.net.DatagramPacket response) This method is used to send the given datagram packet back to the originator of the incoming data.
void	setShutdownOnError(boolean flag) Indicates whether transport should shutdown upon processing error
void	shutdown() Stop the transport.

Methods inherited from class com.nt.udc.ndk.node.EITransport

getDataReceiver, getDubCheckObj, getDupCheckFlag, getFileBulkData, getFileData, getFileDataReceiver, getMovedFileStatus, getNode, getPollingInterval, handleRejectOfFile, incrementIn, incrementIn, isEndOfFile, isFileDataAvailable, isProcessing, isProcessingData, isStartOfFile, openInputFile, rejectFile, setCountsSuspect, setDataReceiver, setFileDataReceiver, setFileToProcess, setMovedFileStatus, setNode, setPollingInterval, setProcessing

Methods inherited from class java.lang.Object

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

Constructor Detail

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              int prt)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given port on the local host and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

prt - The port number to listen on

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              java.lang.String host,
              int prt)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given remote host/port and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

host - The host name / IP address to listen to

prt - The port number to listen on

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              int prt,
              int pktSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given port on the local host and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              int prt,
              int pktSize,
              int socketBufSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given port on the local host and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

socketBufSize - Socket buffer size (default 65536)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              ResponseDatagramFactory responseFactory,
              int prt,
              int pktSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given port on the local host and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              java.lang.String host,
              int prt,
              int pktSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given remote host/port and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

host - The host name / IP address to listen to

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              ResponseDatagramFactory responseFactory,
              java.lang.String host,
              int prt,
              int pktSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given remote host/port and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

responseFactory - Factory object to construct the response datagram

host - The host name / IP address to listen to

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              ResponseDatagramFactory responseFactory,
              java.lang.String host,
              int prt,
              int pktSize,
              int idleRecWriteTime)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given remote host/port and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

responseFactory - Factory object to construct the response datagram

host - The host name / IP address to listen to

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

idleRecWriteTime - Idle record write time is made configurable (default 10 seconds)

Throws:

NodeStartException

UdpEITransport

public UdpEITransport(EINode einode,
              DCRecordFactoryIfc factory,
              ResponseDatagramFactory responseFactory,
              java.lang.String host,
              int prt,
              int pktSize,
              int idleRecWriteTime,
              int socketBufSize)
               throws NodeStartException

Construct a new UdpEITransport to be used within the specified EINode. The transport will create a socket on the given remote host/port and use the given factory to generate EIRecord() objects.

Parameters:

einode - Reference to the EINode containing the transport

factory - DCRecordFactoryIfc() object used to generate the desired EIRecord() objects.

responseFactory - Factory object to construct the response datagram

host - The host name / IP address to listen to

prt - The port number to listen on

pktSize - Number of bytes in a data 'packet' (default 4096)

idleRecWriteTime - Idle record write time is made configurable (default 10 seconds)

socketBufSize - Socket buffer size (default 65536)

Throws:

NodeStartException

Method Detail

initMesManager

protected void initMesManager(int idleRecWriteTime)

isDataAvailable

public boolean isDataAvailable()

This method is used by the DataReceiver to ask this provider if data is available.

Specified by:

isDataAvailable in interface DataProviderIfc

Specified by:

isDataAvailable in class EITransport

Returns:

true, if data is available

getData

public DCFieldContainer getData()

Description copied from class: EITransport

This method is used by the DataReceiver to fetch a single

Specified by:

getData in interface DataProviderIfc

Specified by:

getData in class EITransport

Returns:

DCFieldContainer.

getBulkData

public DCFieldContainer[] getBulkData()

Description copied from class: EITransport

This method is used by the DataReceiver to fetch a set of DCFieldContainer objects.

Specified by:

getBulkData in interface DataProviderIfc

Specified by:

getBulkData in class EITransport

Returns:

DCFieldContainer object array, containing the data that is for processing

run

public void run()

This method is used when the EITransport runs within its own thread. Each DatagramPacket object that is received will be placed in a QueuedUdpPacket object and stored in a queue until the data is requested by the transport's DataReceiver.

Specified by:

run in interface java.lang.Runnable

Specified by:

run in class EITransport

shutdown

public void shutdown()

Stop the transport. To ensure no loss of data, the transport should continue to supply any queued data to its DataReceiver.

Specified by:

shutdown in interface DCTransport

Specified by:

shutdown in class EITransport

isShutdownOnError

public boolean isShutdownOnError()

Indicates whether transport should shutdown upon processing error

setShutdownOnError

public void setShutdownOnError(boolean flag)

Indicates whether transport should shutdown upon processing error

Parameters:

flag - true, if error should cause a shutdown. Default is false.

send

public void send(java.net.DatagramPacket response)

This method is used to send the given datagram packet back to the originator of the incoming data.

Parameters:

response - The datagram packet to be sent

beginReconfigure

public void beginReconfigure()

Sets this transport into a reconfiguration state. While in the reconfiguration state, data is not accessible (even if available). Specifically, isDataAvailable() will always return false and getData() and getBulkData() will always return null while this transport is being reconfigured. Packets will still be read off the line while the transport is reconfigured.

endReconfigure

public void endReconfigure()

Ends reconfiguration state, allowing data to be accessed again.

isReconfiguring

public boolean isReconfiguring()

Returns value of reconfiguring flag.

reconfigure

public void reconfigure(DCRecordFactoryIfc factory,
               ResponseDatagramFactory responseFactory,
               int radius_port)

Reconfigures the record factory and queue size of this UDP transport.

Parameters:

factory - DCRecordFactoryIfc object used to generate the desired EI record objects

responseFactory -

radius_port - The Radius port number

reconfigure

public void reconfigure(DCRecordFactoryIfc factory,
               ResponseDatagramFactory responseFactory,
               int port,
               int idleRecWrTime)

isHealthy

public boolean isHealthy()

This method is used to check if the transport is fully functional.

Specified by:

isHealthy in interface DCTransport

Overrides:

isHealthy in class EITransport

Returns:

true if the transport is healthy, false otherwise

resetLoggingState

public void resetLoggingState()

Resets state for conditionally logged messages. This method should be called from the node's clearStatus() method.