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Guide to Apache Avro 1. Overview Data serialization is a technique of converting data into binary or text format. There are multiple systems available for this purpose. Apache Avro is one of those data serialization systems. Avro is a language independent, schema-based data serialization library. It uses a schema to… Continue Reading java-apache-avro
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Parsing HTML in Java with Jsoup 1. Overview Jsoup is an open source Java library used mainly for extracting data from HTML. It also allows you to manipulate and output HTML. It has a steady development line, great documentation, and a fluent and flexible API. Jsoup can also be used… Continue Reading java-with-jsoup
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Spring JSON-P with Jackson 1. Overview If you’ve been developing anything on the web, you’re aware of the same-origin policy constraint browsers have when dealing with AJAX requests. The simple overview of the constraint is that any request originating from a different domain, schema or port, will not be permitted.… Continue Reading spring-jackson-jsonp
Introduction to Google Protocol Buffer 1. Overview In this article, we’ll be looking at the Google Protocol Buffer (protobuf) – a well-known language-agnostic binary data format. We can define a file with a protocol and next, using that protocol, we can generate code in languages like Java, C++, C#, Go,… Continue Reading google-protocol-buffer
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Guide to @JsonFormat in Jackson 1. Overview In this article, we try to understand how to use @JsonFormat in Jackson. It is a Jackson annotation that is used to specify how to format fields and/or properties for JSON output. Specifically, this annotation allows you to specify how to format Specifically,… Continue Reading jackson-jsonformat
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How to Process YAML with Jackson 1. Introduction In this short tutorial, we’re going to learn how to use Jackson to read and write YAML files. After we go over our example structure, we’ll use the ObjectMapper to read a YAML file into a Java object and also write an… Continue Reading jackson-yaml
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More Jackson Annotations 1. Overview This article covers some additional annotations that were not covered in the previous article, A Guide to Jackson Annotations – we will go through seven of these. 2. @JsonIdentityReference @JsonIdentityReference is used for customization of references to objects that will be serialized as object identities… Continue Reading jackson-advanced-annotations
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Jackson – Unmarshall to Collection/Array 1. Overview This tutorial will show how to deserialize a JSON Array to a Java Array or Collection with Jackson 2. If you want to dig deeper and learn other cool things you can do with the Jackson 2 – head on over to the… Continue Reading jackson-collection-array
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A Guide to Apache Crunch 1. Introduction In this tutorial, we’ll demonstrate Apache Crunch with an example data processing application. We’ll run this application using the MapReduce framework. We’ll start by covering briefly some Apache Crunch concepts. Then we’ll jump into a sample app. In this app we’ll do text processing: First… Continue Reading apache-crunch
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How To Serialize and Deserialize Enums with Jackson 1. Overview This quick tutorial will show how to control the way Java Enums are serialized and deserialized with Jackson 2. To dig a little deeper and learn other cool things we can do Jackson 2 – head on over to the… Continue Reading jackson-serialize-enums
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