Sorry that I didn't response for so long. The approach with two servers
and two clients is understandable. But still I have one thing in my
mind- as you said:
"there is always data that flows back on that port, but it's an
acknowledgement, or a response message if the original message was a
query of some sort"
so basically let's have a scenario:
1. We have a server created.
2. We use hapi-testpanel to connect with that sever.
the hapi-testpanel "sending connection" is active - it's connected to
the server. I can now from hapi-testpanel (client) send message and
client will receive ACK message. As I understand hapi-testpanel (sending
connection) is using in this situation:
sendAndReceive(msg);
but is there anyway that server can send msg to client (connection is
established)? So it's like sending ACK but without previously receiving
any message to server by client.
If anyone know how this can be done - please let me know.
Currently I'm using camel hl7 mina2 so maybe with mina2 it's even easier
but if anyone knows a way to do this in hapi-hl7 or anything please
share your knowledge.
Bartłomiej Buczek
On 08/27/2013 10:53 PM, James Agnew wrote:
Hi Bartłomiej,
I have never heard of a situation where a single port is used to both
send and receive messages, at least not in the way that you describe.
HL7 v2 transactions are typically only one direction on a single port
(there is always data that flows back on that port, but it's an
acknowledgement, or a response message if the original message was a
query of some sort).
It seems to me that this would be a problematic setup anyhow- If
either application was sending messages on the same port whenever they
wanted, you would have collisions and very unpredictable behaviour if
both applications decided to send a message at the same time.
It would probably be worth confirming with the vendor of the other
system how they are expecting this to work. My guess is that if you
have an application that will sometimes send data to that system, and
at other times receive data from that system, you need to have one
client and one server on your system, and they will also have one
client and one server on theirs. This is how 99.9% of the HL7 v2 world
works.
Cheers,
James
On Tue, Aug 27, 2013 at 3:06 PM, Bartłomiej Buczek
<b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>> wrote:
James,
maybe I'm missing some knowledge about HL7 or I misunderstood it
but I though that there is one server through which applications
can communicate. In you example I would have to have two servers
that listens on different ports - am I right?
The problem of mine comes from that one of the clients that we try
to integrate requires from us address and port to which he will
connect and listen to messages as well as send messages and I have
no idea how exactly this should work on the same port.
2013/8/27 James Agnew <ja...@jamesagnew.ca
<mailto:ja...@jamesagnew.ca>>
Are you saying that you want to have your application open a
TCP port, accept a connection, receive A02 messages over that
connection, and then send A04 messages out over the same
connection? This is not a normal thing to do with HL7, so I'm
probably misunderstanding.
Or do you just want your application to be able to open a
server socket and receive A02 messages over connections that
come in, but also to initiate a second client connection and
use that connection to send A04 messages?
If it's the latter, you just need both parts of the example I
linked to.
context.newClient(...) creates a client object that can be
used to connect to remote servers and send messages to them,
context.newServer(...) creates a server object that can be
started and will listen for incoming connections and receive
messages on them.
Cheers,
James
On Tue, Aug 27, 2013 at 9:08 AM, Bartłomiej Buczek
<b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>> wrote:
Hi James,
not exactly. I want something like this:
1. Server is already running.
2. One application is connected to the server and is
sending messages of type ADT_A04 and can receive messages
of type ADT_A02.
3. I want to create another application, connect it to the
server and make it listen ADT_A02 and send ADT_A04.
So that those two applications can communicate through HL7
using TCP/IP.
Bartłomiej Buczek
Phoenix Tecnologie Sp. z o.o.
ul. Wiosenna 14/2; 53-017 Wrocław, Poland
NIP: 899 258 73 59
Tel.+48 71 338 65 64 <tel:%2B48%2071%20338%2065%2064>; Kom.+48 668 891
540 <tel:%2B48%20668%20891%20540>
Fax+48 71 338 65 55 <tel:%2B48%2071%20338%2065%2055>
b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>
phxtecno.com <http://phxtecno.com>
On 08/27/2013 02:48 PM, James Agnew wrote:
Hi Bartłomiej,
It sounds like you're probably looking to create a client
as opposed to a server. You'll see an example of how to
do that starting on line 145 here:
http://hl7api.sourceforge.net/xref/ca/uhn/hl7v2/examples/SendAndReceiveAMessage.html
Cheers,
James
On Tue, Aug 27, 2013 at 6:37 AM, Bartłomiej Buczek
<b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>> wrote:
Really no one can help me with this? I'm waiting so
long and simple no response...
Bartłomiej Buczek
Phoenix Tecnologie Sp. z o.o.
ul. Wiosenna 14/2; 53-017 Wrocław, Poland
NIP: 899 258 73 59
Tel.+48 71 338 65 64 <tel:%2B48%2071%20338%2065%2064>; Kom.+48 668
891 540 <tel:%2B48%20668%20891%20540>
Fax+48 71 338 65 55 <tel:%2B48%2071%20338%2065%2055>
b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>
phxtecno.com <http://phxtecno.com>
On 07/12/2013 12:06 PM, Bartłomiej Buczek wrote:
Hi,
I was following example send multiple messages out
<http://hl7api.sourceforge.net/xref/ca/uhn/hl7v2/examples/SendLotsOfMessages.html>
and found out something like this:
// Setup server to listen for incoming message
int port = 8813;
boolean useTls = false;
HapiContext context = new DefaultHapiContext();
HL7Service server = context.newServer(port, useTls);
// We want to listen ADT^A01 messages
ReceivingApplication handler =
(ReceivingApplication) new ExampleReceiverApplication();
server.registerApplication("ADT", "A01", handler);
So I run the application and as far as I understand
I have setup server and a client application which
will listen for ADT^A01 messages. Now I want to
create another application (let's say another
client) which will connect with that already created
server and listen for ADT^A02 messages.
I found on documentation something like that:
"If you are wondering how to integrate HAPI into an
existing server application, this is probably the
place. Create a class that implements
ReceivingApplication, then look at HL7Server and
ApplicationRouter to see how to get HAPI to listen
for messages on a socket and pass them to your
ReceivingApplication."
But how should I use HL7Server and ApplicationRouter
to connect with previously created server? Maybe I'm
missing something in the logic but let's consider
that one software already has running server and I
want to integrate with them to listen for messages
special for my application (like ADT^A02) - how to
do this?
--
Bartłomiej Buczek
Phoenix Tecnologie Sp. z o.o.
ul. Wiosenna 14/2; 53-017 Wrocław, Poland
NIP: 899 258 73 59
Tel.+48 71 338 65 64 <tel:%2B48%2071%20338%2065%2064>; Kom.+48 668
891 540 <tel:%2B48%20668%20891%20540>
Fax+48 71 338 65 55 <tel:%2B48%2071%20338%2065%2055>
b.buc...@phxtecno.com <mailto:b.buc...@phxtecno.com>
phxtecno.com <http://phxtecno.com>
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