ISOChannel

Class ISOChannel atau Channel pada library jPOS ini digunakan untuk membungkus detail implementasi dari protokol-protokol yang digunakan oleh setiap vendor. Selain itu ISOChannel ini juga digunakan untuk mengirimkan dan menerima object ISOMsg. Beberapa Channel yang telah didukung oleh library jPOS ini antara lain :

Channel Name	Description	URL
AmexChannel	Implementasi ISOChannel untuk American Express	detail
ASCIIChannel	ISOChannel yang menggunakan 4 ASCII karakter header sebagai penanda panjang message	detail
Base24Channel	Implements an ISOChannel capable to exchange messages with ACI’s BASE24[tm] over an X.25 link.	detail
BASE24TCPChannel	Implements an ISOChannel able to exchange messages with ACI’s BASE24 over a TCP link.	detail
BCDChannel	Talks with TCP based NCCs Sends [LEN][TPDU][ISOMSG] (len=2 bytes HEX).	detail
ChannelPool	-	detail
CSChannel	ISOChannel implementation – CS standard Channel.	detail
FSDChannel	-	detail
GZIPChannel	ISOChannel implementation.	detail
HEXChannel	Sends a four ASCII hex characters indicating message length (up to 0xffff).	detail
LogChannel	Extracts blocks from standard jPOS log.	detail
LoopbackChannel	-	detail
NACChannel	Talks with TCP based NACs Sends [LEN][TPDU][ISOMSG] (len=2 bytes network byte order).	detail
NCCChannel	Talks with TCP based NCCs Sends [LEN][TPDU][ISOMSG] (len=2 bytes BCD).	detail
PADChannel	Implements an ISOChannel suitable to be used to connect to an X.25 PAD.	detail
PostChannel	ISOChannel implementation – Postilion Channel Send packet len (2 bytes network byte order MSB/LSB) followed by raw data.	detail
RawChannel	ISOChannel implementation – RAW Channel Send packet len (4 bytes network byte order) followed by raw data.	detail
RBPChannel	Implements Record Boundary Preservation protocol.	detail
TelnetXMLChannel	Implements an ISOChannel able to exchange jPOS generated (or compliant) XML based ISO-8583 messages through a Telnet session the telnet commands are simply ignored.	detail
VAPChannel	ISOChannel implementation – VISA’s VAP framing.	detail
X25Channel	Implements an ISOChannel suitable to be used to connect to an X.25 PAD.	detail
XMLChannel	Implements an ISOChannel able to exchange jPOS generated (or compliant) XML based ISO-8583 messages.	detail

Channel atau ISOChannel disini mempunyai peran yang sangat penting sekali dalam proses tersambung atau tidak-nya antara vendor yang satu dengan yang lain dan biasanya implementasi tiap vendor berbeda-beda  Sedangkan pada library jPOS, penggunaan Channel ini sangat mudah seperti terlihat pada potongan kode dibawah ini :

1. Contoh penggunaan ASCIIChannel

   64 65 66

   ... ASCIIChannel channel = new ASCIIChannel(hostname, portNumber, packager); ...