Book Image

Learning Apache Thrift

Book Image

Learning Apache Thrift

Overview of this book

With modern software systems being increasingly complex, providing a scalable communication architecture for applications in different languages is tedious. The Apache Thrift framework is the solution to this problem! It helps build efficient and easy-to-maintain services and offers a plethora of options matching your application type by supporting several popular programming languages, including C++, Java, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, JavaScript, Node.js, Smalltalk, OCaml, and Delphi. This book will help you set aside the basics of service-oriented systems through your first Apache Thrift-powered app. Then, progressing to more complex examples, it will provide you with tips for running large-scale applications in production environments. You will learn how to assess when Apache Thrift is the best tool to be used. To start with, you will run a simple example application, learning the framework's structure along the way; you will quickly advance to more complex systems that will help you solve various real-life problems. Moreover, you will be able to add a communication layer to every application written in one of the popular programming languages, with support for various data types and error handling. Further, you will learn how pre-eminent companies use Apache Thrift in their popular applications. This book is a great starting point if you want to use one of the best tools available to develop cross-language applications in service-oriented architectures.
Table of Contents (15 chapters)
Learning Apache Thrift
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
5
Generating and Running Code in Different Languages
Index

What are exceptions and how to handle them?


In our work, we will concentrate on runtime errors as these are the errors that may occur in your Apache Thrift-enabled application and you can (and should) handle them.

In most programming languages, exceptions work in a similar manner: when an error occurs at runtime, a special object is created. This object inherits from the basic exception or error class, depending on the language, and contains information on the nature of the problem. The execution of the program is interrupted and the exception object is passed to the runtime system (this is called throwing an exception), which, in turn, tries to handle it. Developers have the ability to define various exception handlers, which can catch the exception. These handlers specify the kind of errors they can handle—the type of exception objects that are accepted are listed in the handler's header. The inheritance path is taken into consideration here, so that handlers can be more or less general...