HL7 Information - Revision history

NeilArmstrong: Added glossary link to Application~

2012-02-23T01:04:20Z

Added glossary link to Application~

← Older revision		Revision as of 01:04, 23 February 2012
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	~~Applications~~ are defined to receive messages in file #771 (HL7 APPLICATION PARAMETER)		[[Application~\|Application]]s are defined to receive messages in file #771 (HL7 [[APPLICATION~\|Application]] PARAMETER)

Kdtop at 01:51, 20 February 2011

2011-02-20T01:51:22Z

← Older revision		Revision as of 01:51, 20 February 2011
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	# '''^HLCSTCP1''' -- This calls a function READ^HLCSTCP1 which reads in the message and returns an HLMIEN to file #773 (HL7 MESSAGE ADMINISTRATION), which contains a pointer to file #772 (HL7 MESSAGE TEXT), which is where the actual text of the HL7 message is stored in a a WP field. Next PROCESS^HLCSTCP1 is called --> calls NEW^HLTP3(HLMIEN) ...		# '''^HLCSTCP1''' -- This calls a function READ^HLCSTCP1 which reads in the message and returns an HLMIEN to file #773 (HL7 MESSAGE ADMINISTRATION), which contains a pointer to file #772 (HL7 MESSAGE TEXT), which is where the actual text of the HL7 message is stored in a a WP field. Next PROCESS^HLCSTCP1 is called --> calls NEW^HLTP3(HLMIEN) ...
	# '''NEW^HLTP3(IEN)''' -- This is where the message is actually processed.		# '''NEW^HLTP3(IEN)''' -- This is where the message is actually processed.


			Applications are defined to receive messages in file #771 (HL7 APPLICATION PARAMETER)

Kdtop at 21:51, 19 February 2011

2011-02-19T21:51:22Z

← Older revision		Revision as of 21:51, 19 February 2011
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	exit 0		exit 0

	~~GTMLNX^HLCSGTM~~		'''Mumps code then executed as below'''
	~~This sets up the mumps device and~~ then ~~starts listening for incoming text by running function~~ below~~...~~

	LISTEN^HLCSTCP		# '''GTMLNX^HLCSGTM''' -- This sets up the mumps device and then starts listening for incoming text by running function below...
	This does some setup, then runs function below....		# '''LISTEN^HLCSTCP''' -- This does some setup, then runs function below....
			# '''^HLCSTCP1''' -- This calls a function READ^HLCSTCP1 which reads in the message and returns an HLMIEN to file #773 (HL7 MESSAGE ADMINISTRATION), which contains a pointer to file #772 (HL7 MESSAGE TEXT), which is where the actual text of the HL7 message is stored in a a WP field. Next PROCESS^HLCSTCP1 is called --> calls NEW^HLTP3(HLMIEN) ...
	^HLCSTCP1		# '''NEW^HLTP3(IEN)''' -- This is where the message is actually processed.
	This calls a function READ^HLCSTCP1 which reads in the message and returns an HLMIEN to file #773 (HL7 MESSAGE ADMINISTRATION), which contains a pointer to file #772 (HL7 MESSAGE TEXT), which is where the actual text of the HL7 message is stored in a a WP field.
	Next PROCESS^HLCSTCP1 is called --> calls NEW^HLTP3(HLMIEN) ...

	NEW^HLTP3(IEN)

Kdtop at 21:46, 19 February 2011

2011-02-19T21:46:28Z

New page

This will be notes as I explore how HL7 works in vistA

in linux xinet.d is setup like this.

/etc/xinetd.d$ cat HL7

service hl7tcp
{
socket_type = stream
port = xxxx
protocol = tcp
user = xxxxx
wait = no
disable = no
server = /bin/bash
server_args = /opt/worldvista/EHR/bin/hl7tcp.sh
groups = yes
type = UNLISTED
}

So when the HL7 message comes in (our case, as delivered from Mirth), the following script is launched.

/etc/xinetd.d$ cat /opt/worldvista/EHR/bin/hl7tcp.sh
#!/bin/bash
#HL7 Listener
. /opt/worldvista/EHR/etc/env
$gtm_dist/mumps -r GTMLNX^HLCSGTM 2>>/tmp/console.log
exit 0

GTMLNX^HLCSGTM
This sets up the mumps device and then starts listening for incoming text by running function below...

LISTEN^HLCSTCP
This does some setup, then runs function below....

^HLCSTCP1
This calls a function READ^HLCSTCP1 which reads in the message and returns an HLMIEN to file #773 (HL7 MESSAGE ADMINISTRATION), which contains a pointer to file #772 (HL7 MESSAGE TEXT), which is where the actual text of the HL7 message is stored in a a WP field.
Next PROCESS^HLCSTCP1 is called --> calls NEW^HLTP3(HLMIEN) ...

NEW^HLTP3(IEN)