JavaScript dynamic language support in Spring framework article examples (http://nurkiewicz.blogspot.com/2010/09/javascript-dynamic-language-support-in.html)

HelloService.java

package org.springframework.scripting.js;

public interface HelloService {

	String hello(String name);

	String helloParameterized(String name, Date effectiveDate, int age, Locale locale);

}

HelloService.js

function hello(name) {
	return messages.getMessage("hello", [name, city], locale);
}

JavaScriptScriptFactory.java

package org.springframework.scripting.js;

public class JavaScriptScriptFactory implements ScriptFactory {

	public boolean requiresConfigInterface() {
		return true;
	}

	public Object getScriptedObject(ScriptSource scriptSource, Class[] actualInterfaces) throws IOException, ScriptCompilationException {
		return //It's a kind of magic
	}

}

JavaScriptScriptFactoryHelloTest-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:lang="http://www.springframework.org/schema/lang"
       xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.0.xsd">

	<lang:js id="javaScriptHelloService" script-interfaces="org.springframework.scripting.js.HelloService">
		<lang:inline-script>
			function hello(name) {
				return "Hello, " + name + "!"
			}

			function helloParameterized(name, effectiveDate, age, locale) {
				return "" + effectiveDate + ": " + name + " (" + (age + 1) + ", " +
					locale.getDisplayCountry(java.util.Locale.US) + ")" 
			}

		</lang:inline-script>
	</lang:js>

</beans>

JavaScriptScriptFactoryHelloTest.java

package org.springframework.scripting.js;


@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration
public class JavaScriptScriptFactoryHelloTest {

	@Resource
	private HelloService helloService;

	@Test
	public void shouldReturnHelloStringFromJs() throws Exception {
		//given
		final String name = "Tomek";

		//when
		final String result = helloService.hello(name);

		//then
		assertThat(result).isEqualTo("Hello, Tomek!");
	}

	//other tests

}

JavaScriptScriptFactoryPropertiesTest-context.xml

<bean id="resourceBundleMessageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
	<property name="basename" value="org.springframework.scripting.js.i18n.hello"/>
</bean>

<bean id="greatBritainLocale" class="java.util.Locale">
	<constructor-arg value="en_GB"/>
</bean>

<lang:js id="javaScriptHelloService"
		script-interfaces="org.springframework.scripting.js.HelloService"
		script-source="/org/springframework/scripting/js/HelloService.js">
	<lang:property name="city" value="Warsaw"/>
	<lang:property name="locale" ref="greatBritainLocale"/>
	<lang:property name="messages" ref="resourceBundleMessageSource"/>
</lang:js>

LangNamespaceHandler.java

package org.springframework.scripting.config;

public class LangNamespaceHandler extends NamespaceHandlerSupport {

	public void init() {
		registerScriptBeanDefinitionParser("groovy", "org.springframework.scripting.groovy.GroovyScriptFactory");
		registerScriptBeanDefinitionParser("jruby", "org.springframework.scripting.jruby.JRubyScriptFactory");
		registerScriptBeanDefinitionParser("bsh", "org.springframework.scripting.bsh.BshScriptFactory");
		registerScriptBeanDefinitionParser("js", "org.springframework.scripting.js.JavaScriptScriptFactory");
		registerBeanDefinitionParser("defaults", new ScriptingDefaultsParser());
	}

}

UserService.xml

<lang:js id="javaScriptUserService"
	script-interfaces="org.springframework.scripting.js.UserService"
	script-source="http://somehost:8080/scripts/UserService.js"
	refresh-check-delay="15000"/>