Jn Utils

Libraries

Some utility libraries to deal with objects, strings, functions and retries:

• jn-base
• jn-function

Spring Boot starters for developers using AWS services are provided under the jn-spring-boot-aws module:

• jn-starter-aws-kinesis
• jn-starter-aws-s3
• jn-starter-aws-ses
• jn-starter-aws-sns
• jn-starter-aws-sqs

A BOM is provided to manage all your dependencies on any Jn Utils library and to make sure Maven picks the compatible versions when depending on multiple Jn Utils libraries.

• jn-bom

Acknowledgements

I've taken some code and ideas from different Github repositories so I'm linking to that sources and I'd like to thank the authors.

In jn-base:

• Preconditions is a simpler version of Guava's Preconditions class.
• StringUtils and ObjectUtils contain minimal functionality from Spring's StringUtils and ObjectUtils .

In jn-function:

• The XXXWithException clases are inspired by this gist: LambdaExceptionUtil.java
• The retrying features borrow a lot from the library guava-retrying.
  • I've made an important rework and reduced some functionality, assuming that a result without exceptions is always a valid result and won't need to be retried, that I won't need block strategies or retry listeners, etc.
  • I've added features, like retries of functions, consumers, suppliers, runnables, ...