- Groovy 2 Cookbook
- Table of Contents
- Groovy 2 Cookbook
- Credits
- About the Authors
- About the Reviewers
- www.PacktPub.com
- Preface
- 1. Getting Started with Groovy
- Introduction
- Installing Groovy on Windows
- Installing Groovy on Linux and OS X
- Executing Groovy code from the command line
- Using Groovy as a command-line text file editor
- Using Groovy to start a server on the command line
- Running Groovy with invokedynamic support
- Building Groovy from source
- Managing multiple Groovy installations on Linux
- Using groovysh to try out Groovy commands
- Starting groovyConsole to execute Groovy snippets
- Configuring Groovy in Eclipse
- Configuring Groovy in IntelliJ IDEA
- 2. Using Groovy Ecosystem
- Introduction
- Using Java classes from Groovy
- Embedding Groovy into Java
- Compiling Groovy code
- Simplifying dependency management with Grape
- Integrating Groovy into the build process using Ant
- Integrating Groovy into the build process using Maven
- Integrating Groovy into the build process using Gradle
- Generating documentation for Groovy code
- Checking Groovy code's quality with CodeNarc
- 3. Using Groovy Language Features
- Introduction
- Searching strings with regular expressions
- Writing less verbose Java Beans with Groovy Beans
- Inheriting constructors in Groovy classes
- Adding the cloning functionality to Groovy Beans
- Defining code as data in Groovy
- Defining data structures as code in Groovy
- Implementing multiple inheritance in Groovy
- Adding a functionality to the existing Java/Groovy classes
- Defining type-checking rules for dynamic code
- Adding automatic logging to Groovy classes
- 4. Working with Files in Groovy
- Introduction
- Reading from a file
- Reading a text file line by line
- Processing every word in a text file
- Writing to a file
- Replacing tabs with spaces in a text file
- Filtering a text file's content
- Deleting a file or directory
- Walking through a directory recursively
- Searching for files
- Changing file attributes on Windows
- Reading data from a ZIP file
- Reading an Excel file
- Extracting data from a PDF
- 5. Working with XML in Groovy
- 6. Working with JSON in Groovy
- 7. Working with Databases in Groovy
- Introduction
- Creating a database table
- Connecting to an SQL database
- Querying an SQL database
- Modifying data in an SQL database
- Calling a stored procedure
- Reading BLOB/CLOB from a database
- Building a simple ORM framework
- Using Groovy to access Redis
- Using Groovy to access MongoDB
- Using Groovy to access Apache Cassandra
- 8. Working with Web Services in Groovy
- Introduction
- Downloading content from the Internet
- Executing an HTTP GET request
- Executing an HTTP POST request
- Constructing and modifying complex URLs
- Issuing a REST request and parsing a response
- Issuing a SOAP request and parsing a response
- Consuming RSS and Atom feeds
- Using basic authentication for web service security
- Using OAuth for web service security
- 9. Metaprogramming and DSLs in Groovy
- Introduction
- Querying methods and properties
- Dynamically extending classes with new methods
- Overriding methods dynamically
- Adding performance logging to methods
- Adding a caching functionality around methods
- Adding transparent imports to a script
- DSL for executing commands over SSH
- DSL for generating reports from logfiles
- 10. Concurrent Programming in Groovy
- Introduction
- Processing collections concurrently
- Downloading files concurrently
- Splitting a large task into smaller parallel jobs
- Running tasks in parallel and asynchronously
- Using actors to build message-based concurrency
- Using STM to atomically update fields
- Using dataflow variables for lazy evaluation
- Index
Andrey Adamovich is a software craftsman with many years of experience in different lifecycle phases of software creation. He is passionate about defining good development practices, documenting and presenting architecture, the reuse of code and design patterns, the profiling and analysis of application performance, as well as extreme automation of development and operations activities.
He is a longtime Groovy user and has a deep knowledge of the language internals. He uses Groovy in his day-to-day development job for simplifying the development process, which includes: code generation, super cool DSLs, and rapid prototyping.
He has Master's degree in Computer Science from the Latvian State University.
I would like to thank my wife Lena for her patience and understanding that gave me enough time and energy to focus on the book. Many thanks to my friends, Sergey and Dmitry, who attentively reviewed book chapters and shared their insightful comments. And, of course, I'm very grateful to Luciano for the exciting experience we had together while working on this book.
Luciano Fiandesio is a programmer, technology enthusiast, and entrepreneur living in Zurich, Switzerland. Luciano has been working for the last 18 years in 12 different countries as an architect and developer for large corporations and small start-ups: Nokia, European Central Bank, BNP Paribas, and Ericsson are among his clients. He loves coding and designing solutions that are both elegant and rock solid. When not busy learning the next big thing, he likes playing with his analog cameras and cooking Italian food. Two years ago, he started a consulting company focused on software factory automation, Aestas IT, where Groovy plays a big role. He holds a Master's degree in Literature and Philosophy from Rome University.
I'd like to thank Andrey, my business partner, friend, and co-author on this book; Laura, my life partner for her patience; Matteo, my brother, for his help; and Pierluigi for reviewing the book.
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