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laurenceosx on 03/29/13

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Last Edited at 03/29/13 01:03pm

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Groovy Spring Refreshable Script Bean - findScriptResourcePath

/ Published in: Groovy

Created this to generate file:/ script path for Groovy Refreshable Spring Beans
for use in applicationContext.groovy because refresh feature wouldn't work
when Groovy script is looked up on classpath.

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// applicationContext.groovy

import org.springframework.scripting.groovy.GroovyScriptFactory
import org.springframework.scripting.support.ScriptFactoryPostProcessor
import org.codehaus.groovy.grails.commons.spring.DefaultBeanConfiguration

////////////////////////////////////////////////////////////
String findScriptResourcePath( String aScriptResourcePath) {
    // Created this to generate script path for Groovy Refreshable Spring Beans
    // for use in applicationContext.groovy because refresh feature wouldn't work
    // when Groovy script is looked up on classpath.
    // e.g. sample arg 'src/main/resources/USA.groovy' when running gradle runJetty task in IDEA.
    File f1 = new File( aScriptResourcePath ).canonicalFile;
    if (f1.exists()) {
        return f1.toURI().toString(); // most likely running in IDE
    }
    // try again
    // special case
    String token1 = 'src/main/resources';
    if ( aScriptResourcePath.startsWith( token1 ) ) {
        return findScriptResourcePath( aScriptResourcePath - token1 );
    } else {
        // note: refresh feature will probably not work in this case
        def result = this.getClass().getResource( aScriptResourcePath );
        return (result != null) ? result.toString() : null; // e.g. returns file:/C:/blah/blah/blah.groovy
    }
}
////////////////////////////////////////////////////////////

beans {
    importBeans('classpath:applicationContext.xml')
    
    String USAscriptUriPath = findScriptResourcePath('src/main/resources/USA.groovy')

// setup refreshable usa bean
    usa(GroovyScriptFactory, USAscriptUriPath) { DefaultBeanConfiguration bean ->
        capital    = 'Washington, D.C.'
        population = 617996

bean.beanDefinition.setAttribute( ScriptFactoryPostProcessor.REFRESH_CHECK_DELAY_ATTRIBUTE, 5000 )
    }

scriptFactoryPostProcessor(ScriptFactoryPostProcessor) {
        defaultRefreshCheckDelay = 5000
    }
}

URL: http://my.safaribooksonline.com/book/programming/java/9781430224990/scripting-in-spring/refreshing_beans_from_scripts

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