raulcf/d-gen

d-gen

d-gen is a tool for generating random data that conforms to user-defined relational database schemas.

d-gen generates databases in 4 steps:

1. d-gen takes a high-level specification file that can contain generalities about the dataset and parses it into a low-level specification, removing all ambiguity and generalities.
2. d-gen takes the low-level specification and creates the necessary data generators to create the dataset.
3. d-gen generates the data using those data generators.
4. d-gen serializes the resulting dataset into a standard dataset/database format.

Quick Start

As a pre-requisite, d-gen requires Java. All packages and dependencies are handled through a gradle wrapper.

1. Clone this repository:

   git clone https://github.com/raulcf/d-gen
   cd d-gen
   

2. Install dependencies using gradle:

   ./gradlew build
   

Now, the main method of Main.java can be ran using ./gradlew run.

Data Generation Tutorial

1. Create a specification file. Specification files are how you determine the database schema and datatypes of the data to be generated.

2. Run the Main class using Gradle from the command line:

   gradle run --args="-i SPECIFICATION_PATH -o LOW_LEVEL_SPEC_OUTPUT_PATH"
   

   • SPECIFICATION_PATH is the path of the specification file that defines the database to generate.
   • -o LOW_LEVEL_SPEC_OUTPUT_PATH is an optional parameter that points to the file to write the parsed low-level specification to.