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Rodrigo Graciano
October 07, 2022
Programming
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Cloud Batch
Deck for the Batch Processing Cloud Apps with Java
Rodrigo Graciano
October 07, 2022
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Transcript
BATCH PROCESSING CLOUD APPS WITH JAVA ELDER MORAES RODRIGO GRACIANO
OUTUBRO 2022
WHAT SPRING BATCH IS? Spring Batch is a lightweight, comprehensive
batch framework designed to enable the development of robust batch applications vital for the daily operations of enterprise systems. https://docs.spring.io/spring-batch/docs/current/reference/html/index-single.html#spring-batch-intro
WHAT SPRING BATCH IS NOT? Spring Batch is not a
scheduler https://docs.spring.io/spring-batch/docs/current/reference/html/index-single.html#spring-batch-intro
RODRIGO GRACIANO • Principal Software Engineer - NY • Líder
do JUG de NY - NYJavaSIG • graciano.dev • Twitter: @rodrigograciano
ELDER MORAES • Java Champion • Autor de diversos livros
• Developer Advocate na Red Hat • Líder do SouJava • eldermoraes.com • Twitter: @elderjava
THE BASICS
BATCH VOCABULARY
BATCH COMPONENTS JOB
BATCH COMPONENTS STEP
BATCH ARCHITECTURE https://docs.spring.io/spring-batch/docs/current/reference/html/images/spring-batch-reference-model.png JobRepository JobLauncher Job Step 1 *
BATCH COMPONENTS TASKLET
TASKLETS • 1 time operation instead of read/write • Run
a DB query • Copy Files • Zip/unzip files
CHUNK TASKLET - STEP SEQUENCE Process Step Read Write
CHUNK-ORIENTED STEP + PROCESSORS https://docs.spring.io/spring-batch/docs/current/reference/html/images/chunk-oriented-processing-with-item-processor.png
SHOW ME SOME CODE: BASIC DEMO This Photo by Unknown
Author is licensed under CC BY-NC-ND
• JobRepository • JobLauncher • JobRegistry • JobExplorer • PlatformTransactionManager
• JobBuilderFactory • StepBuilderFactory @EnableBatchProcessing
JOB REPOSITORY •It’s how Job, Step, JobParameters, JobExecution, and StepExecution
are persisted
READERS • Database (JDBC, Mongo, Neo4j, Hibernate, etc.) • Flat
Files (delimited, fixed-length) • XML, JSON • JMS, Kafka, Amqp • Multi-file
WRITERS • Database (JDBC, Mongo, Neo4j, Hibernate, etc.) • Flat
Files (delimited, fixed-length) • XML, JSON • JMS, Kafka, Amqp • Multi-file • Email
PROCESSORS •Transforming •Filtering •Validations
LISTENERS JobExecutionListener StepExecutionListener ItemReadListener ItemWriteListener ChunkListener ItemProcessListener SkipListener
JOB EXECUTION LISTENERS
BEYOND THE BASICS SCALING AND PARALLEL PROCESSING
SCALING AND PARALLEL PROCESSING •Parallel steps •Multi-threaded •Async Processor and
AsyncWriter •Remote Partitioning •Remote Chunking
SCALING AND PARALLEL PROCESSING •Parallel steps •Multi-threaded •Async Processor and
AsyncWriter •Remote Partitioning •Remote Chunking
PARALLEL PROCESSING Step 1 Step 2 Step 3 Start Step
4
SCALING AND PARALLEL PROCESSING •Parallel steps •Multi-threaded •Async Processor and
AsyncWriter •Remote Partitioning •Remote Chunking
SCALING AND PARALLEL PROCESSING •Parallel steps •Multi-threaded •Async Processor and
AsyncWriter •Remote Partitioning •Remote Chunking
SCALING AND PARALLEL PROCESSING •Parallel steps •Multi-threaded •Async Processor and
AsyncWriter •Remote Partitioning •Remote Chunking
None
WHAT ABOUT THE CLOUD?
QUESTIONS? https://github.com/rodrigolgraciano/cloud-batch.git https://speakerdeck.com/graciano/cloud-batch @rodrigograciano @ elderjava