GroovyRuleClassLoader.java

package com.easyooo.framework.rule.groovy;

import groovy.lang.GroovyClassLoader;
import groovy.lang.GroovyCodeSource;

import java.io.File;
import java.io.IOException;

import org.codehaus.groovy.control.CompilationFailedException;
import org.codehaus.groovy.control.CompilerConfiguration;

import com.easyooo.framework.rule.RuleException;
import com.easyooo.framework.rule.impl.AbstractRuleClassLoader;
import com.easyooo.framework.rule.impl.ScriptWriter;

/**
 *Groovy Rule Class Loader Implementation 
 * @author Killer
 */
public class GroovyRuleClassLoader extends AbstractRuleClassLoader{

	private GroovyClassLoader GCL = null;
	private CompilerConfiguration config = CompilerConfiguration.DEFAULT;
	
	public GroovyRuleClassLoader(){
		ClassLoader loader = Thread.currentThread().getContextClassLoader();
		GCL = new GroovyClassLoader(loader, config);
	}
	
	@Override
	public Class<?> loadClass(File sourceFile, ScriptWriter sw)throws RuleException{
		try {
			// output
			config.setTargetDirectory(sw.getRootDirectory());
			// no cache
			return GCL.parseClass(new GroovyCodeSource(sourceFile), false);
		} catch (CompilationFailedException e) {
			throw new RuleException("Compile the groovy script error", e);
		} catch (IOException e) {
			throw new RuleException(e);
		}
	}
}