[HAPI-devel] Anyone Using Terser?

[Phillip T. <ptr...@in...>]

I am having some problems with Terser and am not quite sure if they're
related to usage or are HAPI bugs (or a combination of both).  Here is a
simple class that illustrates some of the problems I am having:

        String msg =
"MSH|^~\\&|POW|100||100|200012171800||RDE^O11|14718|P|2.4|||AL|NE|0\r" +
"PID|0001|99999|2000006|000077777|Possible^Kim^||195002220000|F||1|100 E San
Marcos Blvd^^San Marcos^CA^92069^USA^^^San
Diego|||||M||2000006|123-45-6789|A0012345^CA||1|||||||||\r" +
"ORC|NW|RX1|RX1||IP||^BID^X001^200012171800^200308200600|2045&OE^123&PH|2000
12171800|Nurse1|Nurse2|1^Order MD|||200012171800||||\r" +
"RXE|^BID^X001^200012171800^200308200600|99089^DIGOXIN (LANOXIN) -- 0.25
mg|0.2500|0.2500|mg|TA|111^||||||||||||||222^||||0.0000|||||\r" +
"RXR|PO||\r";

        PipeParser pipeParser = new PipeParser();
        Message message = pipeParser.parse(msg);
        Terser terser = new Terser(message);

        String value = terser.get("/.ORC-2");                            //
works

        value = terser.get("/RDE_O11_ORC*/RDE_O11_RXR/RXR-1");    // works
        value = terser.get("/*RDE_O11_ORC/RDE_O11_RXR/RXR-1");    // works
        value = terser.get("/*RDE_O11_ORC/RXE-1-2");                    //
works

        value = terser.get("/.RXE-1-2");                            //
yields HL7Exception: End of message reached -- this is a peer to ORC, which
does work with same syntax
        value = terser.get("/.RXR-1");                            // yields
"null" instead of "PO"
        value = terser.get("/.RDE_O11_RXR/RXR-1");            // yields
"null" instead of "PO"
        value = terser.get("/RDE_O11_ORC*/.RXR(0)-1");        // yields
"null" instead of "PO"
        value = terser.get("/RDE_O11_ORC*/.RXR-1");            // yields
"null" instead of "PO"
        value = terser.get("/RDE_O11_ORC*/*/RXR-1");            // yields
NoSuchElementException
        value = terser.get("/*/RDE_O11_RXR/RXR-1");            // yields
NoSuchElementException
        System.out.println("value = " + value);


In a nutshell, as long as I use a "fully qualified" path to the target
component, everything works great.  When I start trying to use the searching
and substring features, I run into problems.  Any suggestions?

Thanks.

Phil