DataLoader is a locally running java application that provides a command line interface for converting input CSV files to Bullhorn REST API calls for mass inserts, updates, and deletes. Like Data Mirror, it is built on top of the SDK-REST java library. DataLoader has the following inputs and outputs:
- Inputs
- dataloader.properties file
- Command line arguments (command and file/directory)
- CSV input file or directory
- Attachment files/resumes if converting or attaching files
- Outputs
- Command Line Output
- Results files (success and/or failure files for each CSV input file)
- Logfile
Services in DataLoader are responsible for handling user commands. For example the LoadService is responsible for handling the load command.
A Task in DataLoader is responsible for processing an individual row of data from a CSV input file. For example, the LoadTask is responsible for turning a row of data into PUT, POST, or DELETE calls to insert/update/delete data in Bullhorn based upon the DataLoader settings in the dataloader.properties file. Tasks are created upon startup and placed in a task pool that runs n number of tasks concurrently, where n is equal to the numThreads setting in the properties file. Once all tasks in the pool have completed, the program exits.