org.springframework.scripting.jruby
Class JRubyScriptUtils

java.lang.Object
  org.springframework.scripting.jruby.JRubyScriptUtils

public abstract class JRubyScriptUtils
extends java.lang.Object

Utility methods for handling JRuby-scripted objects.

As of Spring 3.0, this class requires JRuby 1.1 or higher.

Since:

2.0

Author:

Rob Harrop, Juergen Hoeller, Rick Evans

Nested Class Summary

static class	JRubyScriptUtils.JRubyExecutionException Exception thrown in response to a JRuby RaiseException being thrown from a JRuby method invocation.
private static class	JRubyScriptUtils.RubyObjectInvocationHandler InvocationHandler that invokes a JRuby script method.

Constructor Summary

JRubyScriptUtils()

Method Summary

static java.lang.Object	createJRubyObject(java.lang.String scriptSource, java.lang.Class[] interfaces) Create a new JRuby-scripted object from the given script source, using the default ClassLoader.
static java.lang.Object	createJRubyObject(java.lang.String scriptSource, java.lang.Class[] interfaces, java.lang.ClassLoader classLoader) Create a new JRuby-scripted object from the given script source.
private static java.lang.String	findClassName(org.jruby.ast.Node rootNode) Given the root Node in a JRuby AST will locate the name of the class defined by that AST.
private static org.jruby.ast.ClassNode	findClassNode(org.jruby.ast.Node node) Find the first ClassNode under the supplied Node.
private static org.jruby.Ruby	initializeRuntime() Initializes an instance of the Ruby runtime.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JRubyScriptUtils

public JRubyScriptUtils()

Method Detail

createJRubyObject

public static java.lang.Object createJRubyObject(java.lang.String scriptSource,
                                                 java.lang.Class[] interfaces)
                                          throws org.jruby.exceptions.JumpException

Create a new JRuby-scripted object from the given script source, using the default ClassLoader.

Parameters:

scriptSource - the script source text

interfaces - the interfaces that the scripted Java object is to implement

Returns:

the scripted Java object

Throws:

org.jruby.exceptions.JumpException - in case of JRuby parsing failure

See Also:

ClassUtils.getDefaultClassLoader()

createJRubyObject

public static java.lang.Object createJRubyObject(java.lang.String scriptSource,
                                                 java.lang.Class[] interfaces,
                                                 java.lang.ClassLoader classLoader)

Create a new JRuby-scripted object from the given script source.

Parameters:

scriptSource - the script source text

interfaces - the interfaces that the scripted Java object is to implement

classLoader - the ClassLoader to create the script proxy with

Returns:

the scripted Java object

Throws:

org.jruby.exceptions.JumpException - in case of JRuby parsing failure

initializeRuntime

private static org.jruby.Ruby initializeRuntime()

Initializes an instance of the Ruby runtime.

findClassName

private static java.lang.String findClassName(org.jruby.ast.Node rootNode)

Given the root Node in a JRuby AST will locate the name of the class defined by that AST.

Throws:

java.lang.IllegalArgumentException - if no class is defined by the supplied AST

findClassNode

private static org.jruby.ast.ClassNode findClassNode(org.jruby.ast.Node node)

Find the first ClassNode under the supplied Node.

Returns:

the found ClassNode, or null if no ClassNode is found