json-flattener is a Java utility designed to address the need for converting nested JSON objects into flattened structures, and vice versa. It offers both flattening and unflattening capabilities, creating either a flattened JSON string or a Java Map representation of the data. The project leverages a flexible architecture allowing users to select different JSON libraries like Jackson, Gson, and org.json. It is particularly useful for scenarios where data needs to be processed in a flat format, such as database storage or simpler data manipulation.
This project distinguishes itself through its support for various JSON libraries (Jackson, Gson, org.json) and customization options, offering flexibility for different use cases. It allows for the handling of reserved characters in JSON keys, preventing issues with common JSON structures. Recent updates provide APIs for simplifying the unflattening process into Java Maps. The library allows choosing different JSON libraries and adapting JSON processing to individual needs.
- Cross-Library Compatibility: Supports Jackson, Gson, and org.json for JSON processing.
- Reserved Character Handling: Handles reserved characters in JSON keys, preventing common parsing errors.
- Flattening to Java Map: Provides direct conversion of JSON to a Java Map for easy manipulation.
- Unflattening Functionality: Simplifies the conversion of flattened JSON back to its original nested structure.
- Customizable Flattening Modes: Supports different flattening modes for controlling output format (e.g., preserving arrays).
- Flexible JSON Core: Allows integration with various JSON libraries.
- Spring Integration: Provides Spring configuration examples for easy dependency injection.
The project has been actively maintained with a consistent release history, indicating ongoing development and support. Recent updates include enhanced API features like unflattenAsMap and broad compatibility with different JSON libraries. A relatively high number of stars and forks suggests community interest and adoption. The documentation is comprehensive and includes usage examples, facilitating easy integration.
This project benefits developers working with nested JSON data who require flexible conversion options. It is ideal for tasks such as data transformation, database integration, and data processing where flattened or unflattened JSON is needed. The flexibility and support for multiple JSON libraries make it a valuable tool for diverse applications where easily managing JSON structure is important.