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Today's Topics:
1. Re: "Path" expressions? (LDH)
2. How to get the Port of the current connection (Ram)
3. Re: How to get the Port of the current connection (LDH)
----------------------------------------------------------------------
Message: 1
Date: Mon, 20 Feb 2012 23:29:58 -0500
From: LDH<l...@360fresh.com>
Subject: Re: [HAPI-devel] "Path" expressions?
To: hl7api-devel@lists.sourceforge.net
Message-ID:<4f431dc6.6020...@360fresh.com>
Content-Type: text/plain; charset="iso-8859-1"
Thank you, i think that may be what i was looking for.
------------------------------------------------------------------------
*Laurent (Harry) Hasson*
360Fresh
On 2/16/2012 22:41, Ian Vowles wrote:
What you are after is the terser. Cut and pasted snippets below.
Since the structure of the ORM is rather deep, I included some
additional strings to make it easier. The example I extracted this
from uses a properties file that has a database column name as the
key, and the datatype and terse destination as the value, like this:
MESSAGE_TYPE=VARCHAR2|MSH-9-1
TRIGGER_EVENT=VARCHAR2|MSH-9-2
PATIENT_CLASS=VARCHAR2|PV1-2
ORDER_CONTROL=VARCHAR2|ORC-1
ORDER_STATUS=VARCHAR2|ORC-5
CLI_ID=NUMBER|PID-3
CLI_LAST_NAME=VARCHAR2|PID-5-1
CLI_FIRST_NAME=VARCHAR2|PID-5-2
CLI_OTHER_NAMES=VARCHAR2|PID-5-3
CLI_TITLE=VARCHAR2|PID-5-5
CLI_BIRTH_DATE=DATE|PID-7
I split the value on the pipe, make some format decisions using the
datatype, and put the value into the nominated field with the terser.
The deeper and somewhat odd looking terser keys can be seen if you
create a message of a particular type and do a printstructure.
With the message object and it's terser you can use both the technique
you have shown, and the terser interchangeably to construct your message.
You mention that there are differences from hospital to hospital,
which I have seen with content, but seldom with structure. If the
hospital doesn't follow the HL7 standard in it's structure, you may
have to build custom messages. If they just put funny content in, you
can use either of these techniques to get at the content, and do what
you need.
Note this code is a few lines cut from a running interface, just to
show the use. It's not in any way complete. It doiesn't show the loop
through the columns of the recordset object of the database source to
fill the entire message. The MSH segment is filled out using the
hl7Out.getMSH().getVersionID().getVersionID().setValue("2.3.1");
technique.
import ca.uhn.hl7v2.HL7Exception;
import ca.uhn.hl7v2.model.DataTypeException;
import ca.uhn.hl7v2.model.v231.message.ORM_O01;
import ca.uhn.hl7v2.parser.CustomModelClassFactory;
import ca.uhn.hl7v2.parser.ModelClassFactory;
import ca.uhn.hl7v2.util.Terser;
ModelClassFactory cmf = new
CustomModelClassFactory("au.gov.qld.health.sit.bsqr");
ORM_O01 hl7Out = new ORM_O01(cmf);
System.out.println(hl7Out.printStructure());
Terser terser = new Terser(hl7Out);
String pidTerse = "/PIDPD1NTEPV1PV2IN1IN2IN3GT1AL1";
String pv1Terse = "/PIDPD1NTEPV1PV2IN1IN2IN3GT1AL1/PV1PV2";
String orcTerse =
"/ORCOBRRQDRQ1ODSODTRXONTEDG1RXRRXCNTEOBXNTECTIBLG";
String obrTerse = orcTerse +
"/OBRRQDRQ1ODSODTRXONTEDG1RXRRXCNTEOBXNTE";
if (!mobileStationName.equalsIgnoreCase("unknown")) {
terser.set(obrTerse + "/OBR-21", mobileStationName);
}
Best of luck
Ian
LDH<l...@360fresh.com> 17/02/12 12:37>>>
I just worked on a project which used Mirth, and in the mapping code,
we'd do something like
var PatientGivenName = msg['PID.5.2'].toString();
I have been searching the docs and samples online to find a way to
access values from "path expressions" like the above, but without
success. A quick pointer would be so useful.
The reason why i am researching this is that i'd like eventually to
have a simple configuration file that would provide simple mappings
which could then be modified without changing code. Currently, i'd get
the field with the following code:
ADT_A01 ADT = (ADT_A01) Msg;
ADT.getPID().getPatientName(0).getGivenName().getValue();
Clearly, for FirstName, that is unlikely to change, but some other
values seem to vary a lot from hospital to hospital and would like my
doce to be more flexible and driven by a simple mapping configuration.
Thank you.
Laurent Hasson
360Fresh
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Message: 2
Date: Mon, 05 Mar 2012 21:28:29 +0530
From: Ram<r...@visolve.com>
Subject: [HAPI-devel] How to get the Port of the current connection
To: hl7api-devel@lists.sourceforge.net
Message-ID:<4f54e2a5.3080...@visolve.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi All,
I did created a MyApplication which implements Application interface.
Then i had a situation to get the port of the connection which received
the message. So I implemented the ConnectionListener interface. When
trying to implement the connectionReceived() method, i could able to
find the method
Thanks
Ram
------------------------------
Message: 3
Date: Mon, 05 Mar 2012 11:55:24 -0500
From: LDH<l...@360fresh.com>
Subject: Re: [HAPI-devel] How to get the Port of the current
connection
To: hl7api-devel@lists.sourceforge.net
Message-ID:<4f54effc.7080...@360fresh.com>
Content-Type: text/plain; charset="iso-8859-1"
Sorry but i am not sure i understand your message clearly. If you are
talking about creating a listener and ingesting messages, this is the
kind of code i have. When your application starts, you have to create a
listener on a port.
int PORT= 12345; // Generally through some configuration file or
command line
LowerLayerProtocol llp = LowerLayerProtocol.makeLLP(); // The
transport protocol
PipeParser parser = new PipeParser(); // The message parser
HL7Listener = new SimpleServer(PORT, llp, parser);
Application handler = new HL7ListenerApp();
HL7Listener.registerApplication("*", "*", handler);
HL7Listener.start();
System.out.println("HL7 daemon has been started on port "+PORT);
Then the Listener class is fairly simple:
public class HL7ListenerApp implements Application
{
public HL7ListenerApp()
{
// Do your initialization
}
@Override
public boolean canProcess(Message arg0)
{
return true;
}
@Override
public Message processMessage(Message Msg)
throws ApplicationException, HL7Exception
{
Message ACK = null;
try
{
// parse the Msg
if (no error)
{
ACK = DefaultApplication.makeACK((MSH) Msg.get("MSH"));
// persist the message if you need to
// Handle message info (write to file, db, or update
UI or whatever you need to do
}
else
{
// handle error
}
}
catch (Throwable T)
{
if (ACK == null)
throw new HL7Exception(T);
}
return ACK;
}
}
I have implemented this in a number of places and prefer to handle the
error in the application than bubble it up back to the interface, unless
something really bad happened (HL7Exception). I hope this helps although
i am not sure this is exactly what you asked for.
------------------------------------------------------------------------
*Laurent (Harry) Hasson*
Co-Founder, 360Fresh.com<https://360Fresh.com>
On 3/5/2012 10:58, Ram wrote:
Hi All,
I did created a MyApplication which implements Application interface.
Then i had a situation to get the port of the connection which received
the message. So I implemented the ConnectionListener interface. When
trying to implement the connectionReceived() method, i could able to
find the method
Thanks
Ram
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