Interface between mongoDB and the Next Scripting Framework

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

The current version is tested with 
- MongoDB v2.4.9
- mongodb-c-driver 0.90.1
- libbson 0.4.3

Compile or obtain mongodb (the database).

Compile or obtain libbson (binary json library)

      cd /usr/local/src
      git clone https://github.com/mongodb/libbson
      cd libbson
      sh autogen.sh
      make
      sudo make install

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

      cd /usr/local/src
      git clone https://github.com/mongodb/mongo-c-driver
      cd mongo-c-driver
      export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
      make
      sudo make install

Assume the following installation directories 
  - Tcl:             /usr/local/ns/lib/
  - mongo-c-driver: /usr/local/src/mongo-c-driver/
  - libbson:        /usr/local/src/libbson
configure the mongodb nsf interface via the following 
command in the directory nsf*/library/mongodb/  

   ./configure --with-tcl=/usr/local/ns/lib/ --with-nsf=../../ \
   	       --with-mongoc=/usr/local/src/mongo-c-driver/mongoc/,/usr/local/src/mongo-c-driver/.libs \
	       --with-bson=/usr/local/src/libbson/src/bson,/usr/local/src/libbson/.libs \
	       --enable-threads --enable-symbols --prefix=/usr/local/ns


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

  * go to your nsf source directory

  * make sure, the c-driver libraries are on the library path
    (assuming the the c-driver was installed in /usr/local/lib)

    export DYLD_LIBRARY_PATH=/usr/local/lib:`pwd`

  * run 

    ./nxsh library/mongodb/tests/nsf-mongo.test
 
    The script is using the low level interface (nsf::mongo) and has a
    few insert, query and delete statements, some of these are
    commented out.

 * run 

    ./nxsh library/mongodb/example-nx-mongo.tcl
 
    This example script is using the higher level object oriented
    interface for nx (nx::mongo).

    After running this script, you should could
    check the content in MongoDB:

    % mongo
    MongoDB shell version: 2.4.9
    connecting to: test
    > use tutorial
    switched to db tutorial
    >  db.persons.find();
   { "_id" : ObjectId("530c6e4649686ad16e261f81"), "name" : "Gustaf", "projects" : "nsf", "age" : 53 }
   { "_id" : ObjectId("530c6e4649686ad16e261f82"), "name" : "Stefan", "projects" : "nsf" }
   { "_id" : ObjectId("530c6e4649686ad16e261f83"), "name" : "Victor", "a" : [  "x",  "y" ], "age" : 31 }
   { "_id" : ObjectId("530c6e4649686ad16e261f84"), "name" : "Joe", "projects" : "abc", "age" : 23, "classes" : [  DBRef("courses", ObjectId("100000000000000000000000")) ] }
   { "_id" : ObjectId("530c6e4649686ad16e261f85"), "name" : "Franz", "info" : { "x" : 203, "y" : 102 }, "age" : 29, "projects" : "gtat" }
   { "_id" : ObjectId("530c6e4649686ad16e261f86"), "name" : "Selim", "ts" : Timestamp(1302945037, 1), "d" : ISODate("2011-04-16T09:53:39.279Z") }
   > 


* Further sample-scripts:

    ./nxsh library/mongodb/tests/nx-bi.test
    ./nxsh library/mongodb/tests/nx-reference-one.test
    ./nxsh library/mongodb/tests/nx-reference-many.test
    ./nxsh library/mongodb/tests/nx-rep.test
    ./nxsh library/mongodb/tests/nx-serialize.test
    ./nxsh library/mongodb/tests/nsf-gridfs.test


-gustaf neumann