Book Image

Play Framework Cookbook

By : Alexander Reelsen
Book Image

Play Framework Cookbook

By: Alexander Reelsen

Overview of this book

<p>The Play framework is the new kid on the block of Java frameworks. By breaking with existing standards the play framework tries not to abstract away from HTTP as most web frameworks do, but tightly integrates with it. This means quite a shift for Java programmers. Understanding these concepts behind the play framework and its impact on web development with Java are crucial for fast development of applications.<br /><br />The Play Framework Cookbook starts where the beginner documentation ends. It shows you how to utilize advanced features of the Play framework &ndash; piece by piece and completely outlined with working applications!<br /><br />The reader will be taken through all layers of the Play Framework and provided with in-depth knowledge from as many examples and applications as possible. Leveraging the most from the Play framework means to think simple again in a java environment. Implement your own renderers, integrate tightly with HTTP, use existing code, improve site performance with caching and integrate with other web services and interfaces. Learn about non-functional issues like modularity or integration into production and testing environments. In order to provide the best learning experience during reading Play Framework Cookbook, almost every example is provided with source code, so you can start immediately to integrate recipes into your own play applications.</p>

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Play Framework Cookbook
Alexander Reelsen
Aug, 2011 | 292 pages
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Table of Contents (16 chapters)
Play Framework Cookbook
Play Framework Cookbook
Credits
Credits
Foreword
Foreword
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Basics of the Play Framework
Basics of the Play Framework
Introduction
Downloading and installing the Play framework
Creating a new application
Defining routes as the entry point to your application
Configuring your application via application.conf
Defining your own controllers
Defining your own models
Using fixtures to provide initial data
Defining your own views
Writing your own tags
Using Java Extensions to format data in your views
Adding modules to extend your application
Using Oracle or other databases with Play
Understanding suspendable requests
Understanding session management
2
Using Controllers
Using Controllers
Introduction
URL routing using annotation-based configuration
Basics of caching
Using HTTP digest authentication
Generating PDFs in your controllers
Binding objects using custom binders
Validating objects using annotations
Adding annotation-based right checks to your controller
Rendering JSON output
Writing your own renderRSS method as controller output
3
Leveraging Modules
Leveraging Modules
Introduction
Dependency injection with Spring
Dependency injection with Guice
Using the security module
Adding security to the CRUD module
Using the MongoDB module
Using MongoDB/GridFS to deliver files
4
Creating and Using APIs
Creating and Using APIs
Introduction
Using Google Chart API as a tag
Including a Twitter search in your application
Managing different output formats
Binding JSON and XML to objects
5
Introduction to Writing Modules
Introduction to Writing Modules
Introduction
Creating and using your own module
Building a flexible registration module
Understanding events
Managing module dependencies
Using the same model for different applications
Understanding bytecode enhancement
Adding private module repositories
Preprocessing content by integrating stylus
Integrating Dojo by adding command line options
6
Practical Module Examples
Practical Module Examples
Introduction
Adding annotations via bytecode enhancement
Implementing your own persistence layer
Integrating with messaging queues
Using Solr for indexing
Writing your own cache implementation
7
Running in Production
Running in Production
Introduction
Test automation with Jenkins
Test automation with Calimoucho
Creating a distributed configuration service
Running jobs in a distributed environment
Running one Play instance for several hosts
Forcing SSL for chosen controllers
Implementing own monitoring points
Configuring log4j for log rotation
Integrating with Icinga
Integrating with Munin
Setting up the Apache web server with Play
Setting up the Nginx web server with Play
Setting up the Lighttpd web server with Play
Multi-node deployment introduction
Further Information About the Play Framework
Further Information About the Play Framework
Further information
Index
Index

Test automation with Jenkins

If you are already having a continuous integration system, it might already be Jenkins as it is quite common in the Java world. If you do not want to set up another system, you should try to use Jenkins as well to run automated tests of your play applications. This recipe will help you to do a quick setup of Jenkins and make it ready to deploy on a Play application.

You can find the source code of this example in the examples/chapter7/test-jenkins directory.

Getting ready

A running Jenkins is essential of course. Either use the current running one, or get a fresh copy from http://www.jenkins-ci.org, download the WAR file and just start it with the following:

java -jar jenkins.war

Again, we will also set up a repository using mercurial. This time we will also access the repository via HTTP instead of file system, as it would be done in a real world setup as well. First, you should install the mercurial plugin of Jenkins. Go to http://localhost:8080, click on Manage...

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