Abstract: Exemplary embodiments may provide an automated approach for processing an input data sample to yield a set of object classes, a parser and one or more unit tests for input data that is to be integrated into a data lake. The objects may be readily queried and, in some instances, may be Plain Old Java Objects (POJO's). The exemplary embodiments may process an input data sample to better understand the format of the input data. The input sample may be processed to identify entities, such as records, objects or the like, in the input data sample. The input data sample may be processed on a line by line basis to identify fields in the entities. Once the format of the input data is determined from the input data sample, a parser may be generated to parse the input data.