Fast multithreaded file processing library for Java.
Project details
Samchika is a lightweight Java library designed for efficient multithreaded file processing. It offers a simple API for handling large files, ensuring high performance through parallel processing. Suitable for various applications from log analysis to ETL operations, it is open-source and welcomes contributions.
Samchika is an innovative, high-performance file processing library designed for the Java programming language. With a focus on multithreading, Samchika caters to handling CPU-intensive tasks efficiently, allowing users to process large files rapidly and in parallel.
Samchika is particularly advantageous in scenarios such as:
Explore the examples directory for implementations that demonstrate these applications.
To transform a large CSV file with optimal performance, implement the following code:
SmartFileProcessor.builder()
.inputPath("large_dataset.csv")
.outputPath("transformed_dataset.csv")
.batchSize(10000)
.lineProcessor(line -> line.toUpperCase())
.displayStats(true)
.build()
.execute();
Samchika has been benchmarked against traditional BufferedReader-based methods, showcasing significant improvements in processing times, especially on multi-core systems. Users can observe over a 70% performance gain on larger files (e.g., 16 GB) while maintaining manageable memory usage (approximately 800 MB) during operations.

This library is a response to the prevalent challenges in processing large text files, designed to provide an elegant API combined with robust multithreading capabilities.
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