[Gnumed-devel] python orb interface

[sjtan]

Well, I'm glad to report that omniORBpy can access the open-emeds pids 
server. ( is it GPL ?)

After starting off with trashing my system by accidently deleting glibc 
when I was trying
to get ORBit2 to work, some of hours of massaging the idl files for 
PersonIdService.idl
finally got it working.
Here's a brief rundown:
1. installed omniORB and omniORBPy .4.0.3
    - needed to load python-2.2.2-devel  rpm for the include files for 
omniORB to compile
     -needed to copy recursively 
/usr/local/lib/python2.2/site-packages/* to 
/usr/lib/python2.2/site-packages/*
on Mandrake .

2. used the tutorial in the doc directory in omniORBPy to get a hang of 
their corba implementation.

3. ran the omniORB nameServer using the parameters for the pids nameserver.
       omniNames -start 5002 -logdir /home/sjtan/omniLog

4.  ran the pids server. It connects to the omni name server without 
much hassle.

5. (optional)used a modified client that finds the pids server via the 
NameService instead of
an ior.file to verify NameService works.

6. copied the  idl  files in  open-emeds/src/interfaces/corbamed/idl  
into  a test directory (  need to do a recursive copy to copy the 
AbbreviatedIncludes directory as well).
    - the tricky bits here is the include path of PersonIdService.idl 
has a base of ../../  and finds corbamed/idl/"included_idl_file.xxx" , 
and this was fixed by by making a corbamed/idl directory inside
the base idl directory, and recursively copying the AbbreviatedIncludes 
directory there. Also copy the
NamingAuthority.idl to corbamed/idl.
mkdir -p corbamed/idl

cp -R AbbreviatedIncludes  corbamed/idl/
cp NamingAuthority.idl corbamed/idl

7. Edit the PersonIdService.idl  and wrap  the declarations inside the 
statement
      module PersonIdService  {
            // .. declarations
       };

   - this little bit  kept me busy for  half a day , as to why I could 
get an undifferentiated Corba Object
   in python but was unable to Narrow it into a IdentificationComponent.
      Printing a  IdentificationComponent.__dict__   finally showed 
that  class IdentificationComponent has a  property
          
         '_NP_RepositoryId': 'IDL:omg.org/IdentificationComponent:1.0'
  
whereas the CORBA object.__dict__ showed
              
           '_NP_RepositoryId': 
'IDL:omg.org/PersonIdService/IdentificationComponent:1.0'

8. run
   omniidl -b python  -nc PersonIdService.idl
to check for any path errors.   
         Notes:
           * The -nc option lets omniidl accept  case-sensitive 
declarations such as
               "Profile profile;"
            * the -I .  option should be left out, otherwise the idl 
generator will generate
               new stubs for CosNaming (because they are in the 
AbbreviatedIncludes) , which interferes with the real omniORB  CosNaming 
packages.

9.  attached is a python session showing how a python client can now access
the pids server.
The session was run in the same directory as the idl files directory, 
where omnidl was run
to generate the python stubs.






















address@hidden idl]$ python
Python 2.2.2 (#2, Feb  5 2003, 10:40:08)
[GCC 3.2.1 (Mandrake Linux 9.1 3.2.1-5mdk)] on linux-i386
Type "help", "copyright", "credits" or "license" for more information.
>>> import CosNaming, CORBA, omniORB
>>> orb = CORBA.ORB_init( ["-", "-ORBInitRef", 
>>> "NameService=corbaloc:iiop:address@hidden:5002/NameService"])
>>> print orb.list_initial_services()
['NameService', 'RootPOA', 'POACurrent']
>>> o1 = orb.resolve_initial_references("NameService")
>>> ctx = o1._narrow(CosNaming.NamingContextExt)
>>> l=[]
>>> for x in "us/nm/state/doh/Pilot".split("/"):
...   l.append(CosNaming.NameComponent(x, "") )
...
>>> o2 = ctx.resolve(l)
>>> import PersonIdService
>>> idComponent = o2._narrow(PersonIdService.IdentificationComponent)
>>> print idComponent.__methods__
['_get_domain_name', '_get_component_name', '_get_supported_traits', 
'_get_identify_person', '_get_profile_access', '_get_sequential_access', 
'_get_identity_access', '_get_id_mgr', '_get_correlation_mgr', 
'_get_naming_context', '_get_trader_components', 'get_supported_properties', 
'_is_a', '_non_existent', '_is_equivalent', '_get_interface', '_hash', 
'_narrow']
>>> traits = idComponent._get_supported_traits()
>>> for x in traits:
...   print x.__dict__
...
{'read_only': 1, 'trait': 'PIDS/InternalId', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'PIDS/DuplicateIds', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'PIDS/CorrelatedIds', 'mandatory': 0, 'searchable': 1}
{'read_only': 1, 'trait': 'PIDS/ExternalIds', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientName', 'mandatory': 1, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/MothersMaidenName', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/DateTimeofBirth', 'mandatory': 0, 'searchable': 
1}
{'read_only': 0, 'trait': 'HL7/Sex', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientAlias', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/Race', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientAddress', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/CountyCode', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PhoneNumber_Home', 'mandatory': 0, 'searchable': 
1}
{'read_only': 0, 'trait': 'HL7/PhoneNumber_Business', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PrimaryLanguage', 'mandatory': 0, 'searchable': 
1}
{'read_only': 0, 'trait': 'HL7/MaritalStatus', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/Religion', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientAccountNumber', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/SSNNumber', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/DriversLicenseNumber', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/MothersIdentifier', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/EthnicGroup', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/BirthPlace', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/MultipleBirthIndicator', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/BirthOrder', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/Citizenship', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/VeteransMilitaryStatus', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/Nationality', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientDeathDateandTime', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'HL7/PatientDeathIndicator', 'mandatory': 0, 
'searchable': 1}
{'read_only': 0, 'trait': 'vCard/FN', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/N', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/PHOTO', 'mandatory': 0, 'searchable': 0}
{'read_only': 0, 'trait': 'vCard/BDAY', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/ADR', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/ADR;HOME', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/TEL', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/TEL;CELL', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/EMAIL', 'mandatory': 0, 'searchable': 1}
{'read_only': 0, 'trait': 'vCard/SOUND', 'mandatory': 0, 'searchable': 0}
{'read_only': 0, 'trait': 'vCard/URL', 'mandatory': 0, 'searchable': 1}
>>> specTraits = PersonIdService.SpecifiedTraits("","")
>>> print specTraits.__dict__
{'_v': '', '_d': ''}
>>> specTraits.traits = ['HL7/PatientName', 'HL7/Sex', 'HL7/DateTimeOfBirth', 
>>> 'HL7/PatientAddress' ]
>>> print specTraits
_d = SOME_TRAITS, traits = ['HL7/PatientName', 'HL7/Sex', 
'HL7/DateTimeOfBirth', 'HL7/PatientAddress']
>>> profile_access = idComponent._get_profile_access()
>>> traits = profile_access.get_profile('18', specTraits)
>>> for x in traits:
...   print x.__dict__
...
{'name': 'HL7/PatientName', 'value': <omniORB.CORBA.Any instance at 0x826690c>}
{'name': 'HL7/Sex', 'value': <omniORB.CORBA.Any instance at 0x826229c>}
{'name': 'HL7/PatientAddress', 'value': <omniORB.CORBA.Any instance at 
0x826210c>}
>>> for x in traits:
...   print x.value.__dict__
...
{'_v': 'Nicklin^Peter^^^^', '_t': <omniORB.tcInternal.TypeCode_string instance 
at 0x8266bfc>}
{'_v': 'M', '_t': <omniORB.tcInternal.TypeCode_string instance at 0x8266814>}
{'_v': '458 Channel View Lane^^London^^666777^UK^', '_t': 
<omniORB.tcInternal.TypeCode_string instance at 0x826239c>}
>>>
>>> specTraits.traits = ['HL7/PatientName', 'HL7/Sex', 'HL7/DateTimeofBirth', 
>>> 'HL7/PatientAddress' ]
>>> traits = profile_access.get_profile('18', specTraits)
>>> for x in traits:
...   print x.value.__dict__
...
{'_v': 'Nicklin^Peter^^^^', '_t': <omniORB.tcInternal.TypeCode_string instance 
at 0x825ec6c>}
{'_v': 'M', '_t': <omniORB.tcInternal.TypeCode_string instance at 0x826190c>}
{'_v': '199802121200', '_t': <omniORB.tcInternal.TypeCode_string instance at 
0x825efac>}
{'_v': '458 Channel View Lane^^London^^666777^UK^', '_t': 
<omniORB.tcInternal.TypeCode_string instance at 0x825f22c>}
>>>