Name: Groovy 2 Cookbook
Author: Andrey Adamovich Luciano Fiandesio
ISBN: 9781849519373

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Groovy 2 Cookbook

Andrey Adamovich Luciano Fiandesio

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Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Chapter 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
Chapter 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
Chapter 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
Chapter 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
Chapter 5. Working with XML in Groovy
Introduction
Reading XML using XmlSlurper
Reading XML using XmlParser
Reading XML content with namespaces
Searching in XML with GPath
Searching in XML with XPath
Constructing XML content
Modifying XML content
Sorting XML nodes
Serializing Groovy Beans to XML
Chapter 6. Working with JSON in Groovy
Introduction
Parsing JSON messages with JsonSlurper
Constructing JSON messages with JsonBuilder
Modifying JSON messages
Validating JSON messages
Converting JSON message to XML
Converting JSON message to Groovy Bean
Using JSON to configure your scripts
Chapter 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
Chapter 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
Chapter 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
Chapter 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

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Groovy 2 Cookbook