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ScalaMongoDiff

Compare two MongoDB collections, examining each document and field in detail, to create a third collection that records the differences.

App versions

  • Scala 2.13
  • JDK 19
  • MongoDB 5.0.13

Execution parameters

  1. Navigate to the 'bin' directory and run the 'run_process.sh' script, providing the required parameters and, if necessary, the optional ones, example:

     ...\bin>./run_process.sh -database_from1=dbname1 -collection_from1=colname1 -collection_from2=colname2 -collection_out=colnameout -idField=idname

    Parameters:

      -database_from1=<name>           - Name of the MongoDB database
  -collection_from1=<name>         - Name of the collection in the database
  -collection_from2=<name>         - Name of the collection in the database
  -collection_out=<name>           - Name of the collection in the database
  -idField=<name>                  - Document identifier field
  [-database_from2=<name>]         - MongoDB database name, by default, will be the database_from1
  [-database_out=<name>]           - MongoDB database name, by default, will be the database_from1
  [-host_from1=<name>]             - MongoDB server name. Default is 'localhost'
  [-port_from1=<number>]           - MongoDB server port number. Default is 27017
  [-host_from2=<name>]             - MongoDB server name. Default is 'localhost'
  [-port_from2=<number>]           - MongoDB server port number. Default is 27017
  [-host_out=<name>]               - MongoDB server name. Default is 'localhost'
  [-port_out=<number>]             - MongoDB server port number. Default is 27017
  [-user_from1=<name>]             - MongoDB user name
  [-password_from1=<password>]     - MongoDB user password
  [-user_from2=<name>]             - MongoDB user name
  [-password_from2=<password>]     - MongoDB user password
  [-user_out=<name>]               - MongoDB user name
  [-password_out=<password>]       - MongoDB user password
  [-total=<number>]                - Total documents to be compared
  [-noCompFields=<name>]           - Fields that should not be compared
  [-takeFields=<name>]             - Fields that should be included in the new collection, even if compared
  [--noUpDate]                     - If present, it will not add the _updd field with the update date
  [--append]                       - If present, it will compose the collection without clearing it first
  [-indexField=<name>]             - parameter to determine the name of the field that will take on the role of collection index