Interface between mongoDB and the Next Scripting Framework

Ingredients:
  https://github.com/mongodb/mongo
  https://github.com/mongodb/mongo-c-driver

Compile or obtain mongodb (the database).
Compile or obtain the mongo-c-driver (client interface)

Assume, tcl is under /usr/local/ns/lib and the mongo-c-driver is under
/usr/local/src/mongo-c-driver/, then configre the nsf interface via 

   ./configure --with-tcl=/usr/local/ns/lib --with-nsf=../../ \
   	       --with-mongo=/usr/local/src/mongo-c-driver/src/,/usr/local/src/mongo-c-driver

I had to add MONGO_HAVE_STDINT to the EXTRA_FLAGS on MacOS X
    EXTRA_CFLAGS	= @PKG_CFLAGS@ -DMONGO_HAVE_STDINT
TODO: remove the hardcoded define flag in Makefile.in

In order to run the sample script, 
  * first start the mongdb (mongod)

  * go to your nsf source directory

  * make sure, the c-driver libraries are on the library path
    export DYLD_LIBRARY_PATH=/usr/local/src/mongo-c-driver/:`pwd`

  * run ./nxsh library/mongodb/example-nsf-mongo.tcl
 
    The script has a few insert, query and delete statements, 
    some of these are commented out.

After running the script, you should see output like the following

-gustaf neumann

===============================================================
~/src/nsf-2.0.0% ./nxsh library/mongodb/example-nsf-mongo.tcl
/usr/local/src/tcl8.5.9/unix/tclsh
Inserting a few tuples

Create an index on name (ascending)

Full content
_id oid 4d9b0d56e7b0887e00000000 name string Joe projects string abc age integer 23
_id oid 4d9b0d56e7b0887e00000001 name string Gustaf projects string nsf age integer 53
_id oid 4d9b0d56e7b0887e00000002 name string Stefan projects string nsf
_id oid 4d9b0d56e7b0887e00000003 name string Franz info object {x integer 203 y integer 102} age integer 29
_id oid 4d9b0d56e7b0887e00000004 name string Victor a array {0 string x 1 string y} age integer 31

Project members of nsf sorted by name
_id oid 4d9b0d56e7b0887e00000001 name string Gustaf projects string nsf age integer 53
_id oid 4d9b0d56e7b0887e00000002 name string Stefan projects string nsf

Age > 30
_id oid 4d9b0d56e7b0887e00000001 name string Gustaf projects string nsf age integer 53
_id oid 4d9b0d56e7b0887e00000004 name string Victor a array {0 string x 1 string y} age integer 31

Array 'a' contains 'x'
_id oid 4d9b0d56e7b0887e00000004 name string Victor a array {0 string x 1 string y} age integer 31

Embedded object has some value (info.y > 100)
_id oid 4d9b0d56e7b0887e00000003 name string Franz info object {x integer 203 y integer 102} age integer 29

Nsfmongo Exit