It has been nearly a year since my last posting on Docker. The popularity of Docker has since grown by leaps and bounds. In this posting, I will show you how to create a Docker image of a Spring Boot application using a Maven Docker plugin.

Hive XML SerDe is an XML processing library based on Hive  SerDe  (serializer / deserializer) framework. It relies on XmlInputFormat from Apache Mahout project to shred the input file into XML fragments based on specific start and end tags. You can find more about XmlInputFormat in “Hadoop in Practice”.

This is the continuation of my earlier posting,  Swagger For the REST of Us. Here,  I will cover Springfox integration with my REST Hello World project. Though Springfox supports both 1.2 and 2.0 versions of the Swagger specification, I will stick to Swagger 2.0 specification.

In the last few years, RESTful web services have become as ubiquitous as SOAP in the early 2000s. You look anywhere in the tech community, you will notice someone somewhere is either talking or doing something with REST APIs or microservices. In spite of its immense popularity, REST lacks any type of standard other than a few guiding principles. REST doesn’t have anything similar to Web Service Definition Language (WSDL). WSDL is used for describing SOAP operations, messages, and also for generating client code.

Most developers don’t think of errors and exception handling while designing a REST API. However it is very critical from your API user perspective as the whole logic inside your API code is black boxed from them. If your API returns an error, the API user should be able to make sense of it so as to take any corrective action. If you want your API to be intuitive and useful, you should adhere to following rules: