Groovy

Overview
Installation
Configuration
Quercus
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Third-party
Troubleshooting/FAQ

IDE's
Scottit
Groovy
SwiftMQ
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Scottit

Third-party

SwiftMQ

Groovy is an agile, dynamic programming language that compiles source files directly to java bytecode. Groovy has a syntax similar to Java and includes features found in Python, Ruby, and Smalltalk.

Installing Groovy

Install the groovy*.jar and asm*.jar files from the Groovy distribution in the directory $RESIN_HOME/lib/groovy/:

$RESIN_HOME/lib/groovy

$RESIN_HOME/lib/groovy/groovy-1.0-beta-4.jar
$RESIN_HOME/lib/groovy/asm-1.4.1.jar
$RESIN_HOME/lib/groovy/asm-attrs-1.4.1.jar
$RESIN_HOME/lib/groovy/asm-util-1.4.1.jar

The Groovy compiler groovyc compiles *.groovy files directly to *.class files. With Resin classloader configuration .groovy files are automatically compiled the same as .java files are:

resin.conf - Groovy for all web-app's

  <web-app-default>
     <class-loader>
       <compiling-loader path="WEB-INF/classes"
                         compiler="groovyc"
                         source-extension=".groovy"/>
      </class-loader>
  </web-app-default>

web.xml - Groovy for one web-app

  <web-app>
     <class-loader>
       <compiling-loader path="WEB-INF/classes"
                         compiler="groovyc"
                         source-extension=".groovy"/>
      </class-loader>
  </web-app>

A Groovy Servlet

Since Groovy compiles to Java .class files, application can write servlets using groovy.

WEB-INF/classes/example/MyServlet.groovy

package example;

import javax.servlet.GenericServlet;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class MyServlet extends GenericServlet {
  public void service(ServletRequest req, ServletResponse res)
  {
    out = res.getWriter();

    out.println("Hello, world");
  }
}

Scottit

Third-party

SwiftMQ