Easy Batch is a framework that aims to simplify batch processing with Java. It was specifically designed for simple ETL jobs. Writing batch applications requires a lot of boilerplate code: reading, writing, filtering, parsing and validating data, logging, reporting to name a few.. The idea is to free you from these tedious tasks and let you focus on your batch application's logic.

Easy Batch jobs are simple processing pipelines. Records are read in sequence from a data source, processed in pipeline and written in batches to a data sink:

Easy Batch provides the Record and Batch APIs to abstract data format and process records in a consistent way regardless of the data source/sink types.

Let's suppose you have some tweets represented by a Tweet class and you want to transform them from CSV to XML. Here is how to do it with Easy Batch:

Path inputFile = Paths.get("tweets.csv");
Path outputFile = Paths.get("tweets.xml");
Job job = new JobBuilder<String, String>()
         .reader(new FlatFileRecordReader(inputFile))
         .filter(new HeaderRecordFilter<>())
         .mapper(new DelimitedRecordMapper<>(Tweet.class, "id", "user", "message"))
         .marshaller(new XmlRecordMarshaller<>(Tweet.class))
         .writer(new FileRecordWriter(outputFile))
         .batchSize(10)
         .build();
JobExecutor jobExecutor = new JobExecutor();
JobReport report = jobExecutor.execute(job);
jobExecutor.shutdown();

Easy Batch makes your code declarative, intuitive, easy to read, understand, test and maintain.