I overcame this issue by creating a GENERIC_ADT message using techniques shown
on the Hapi site. Our establishment has many Z-segments, so I had to do all
those, and group them accordingly. A basic example is available on the Hapi
site at
http://hl7api.sourceforge.net/xref/ca/uhn/hl7v2/examples/CustomModelClasses.html
Snippets from the objects are shown below. It was quite a long repetitive
process, and I even wrote a module that created java code from a text file for
the Z segments. However, now it's done all that is required is to create a
GENERIC_ADT with it's constructor, and parse the message text with it's parse
method.
The groups shown in this snippet were defined in similar manner as additional
classes in the java project.
Hope this helps
Ian
--- code snippets ---
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package au.gov.qld.health.sit.hl7;
import ca.uhn.hl7v2.HL7Exception;
import ca.uhn.hl7v2.model.AbstractMessage;
import ca.uhn.hl7v2.model.v24.segment.*;
import ca.uhn.hl7v2.parser.ModelClassFactory;
/**
*
* @author VowlesI
*/
public class GENERIC_ADT extends AbstractMessage {
public GENERIC_ADT(ModelClassFactory factory) throws HL7Exception {
super(factory);
Class<MSH> addMsh = MSH.class;
this.add(addMsh,true,false);
Class<EVN> addEvn = EVN.class;
this.add(addEvn, false, false);
Class<SCH> addSch = SCH.class;
this.add(addSch, false, false);
Class<PID> addPid = PID.class;
this.add(addPid, true, false);
Class<PD1> addPd1 = PD1.class;
this.add(addPd1, false, false);
.
. snip .
.
.
Class<MASTERFILE> addMasterFile = MASTERFILE.class;
this.add(addMasterFile,false,false);
Class<ZHBCIS> addZhbcis = ZHBCIS.class;
this.add(addZhbcis, false, false);
Class<ZNORM> addZnorm = ZNORM.class;
this.add(addZnorm, false, false);
}
public MSH getMSH() throws HL7Exception {
return (MSH) get("MSH");
}
public EVN getEVN() throws HL7Exception {
return (EVN) get ("EVN");
}
public SCH getSCH() throws HL7Exception {
return (SCH) get ("SCH");
}
public PID getPID() throws HL7Exception {
return (PID) get ("PID");
}
public PD1 getPD1() throws HL7Exception {
return (PD1) get ("PD1");
}
.
. snip
.
.
public MASTERFILE getMASTERFILE() throws HL7Exception {
return (MASTERFILE) get ("MASTERFILE");
}
public ZHBCIS getZHBCIS() throws HL7Exception {
return (ZHBCIS) get ("ZHBCIS");
}
public ZNORM getZNORM() throws HL7Exception {
return (ZNORM) get ("ZNORM");
}
}
>>> Sumit Lahiri <sumit.lah...@gmail.com> 31/05/13 0:45 >>>
Hello there,
I'm new to HAPI. The problem I'm facing is I'm not able to typecast a ADT
message to generic ADT_AXX message type. So as a result when I try to parse a
segment eg. IN1 which is not present in a specific ADT Event type(eg ADT_A01) I
get an HL7Exception like
"IN1 does not exist in the group ca.uhn.hl7v2.model.v251.message.ADT_A01"
I'm using the following code to parse my message
HapiContext context = new DefaultHapiContext();
Parser p = context.getGenericParser();
Message hapiMsg;
try {
// The parse method performs the actual parsing
hapiMsg = p.parse(msg1);
} catch (EncodingNotSupportedException e) {
e.printStackTrace();
return;
} catch (HL7Exception e) {
e.printStackTrace();
return;
}
Any help would be highly appreciated.
Best Regards
Sumit
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