cn.hutool.extra.expression.engine.jfireel.JfireELEngine Maven / Gradle / Ivy

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Hutool是一个小而全的Java工具类库，通过静态方法封装，降低相关API的学习成本，提高工作效率，使Java拥有函数式语言般的优雅，让Java语言也可以“甜甜的”。

There is a newer version: 5.8.34

package cn.hutool.extra.expression.engine.jfireel;

import cn.hutool.extra.expression.ExpressionEngine;
import com.jfirer.jfireel.expression.Expression;

import java.util.Collection;
import java.util.Map;

/**
 * JfireEL引擎封装

 * 见：https://gitee.com/eric_ds/jfireEL
 *
 * @since 5.5.0
 * @author looly
 */
public class JfireELEngine implements ExpressionEngine {

	static {
		checkEngineExist(Expression.class);
	}

	/**
	 * 构造
	 */
	public JfireELEngine(){
	}

	@Override
	public Object eval(String expression, Map context, Collection> allowClassSet) {
		return Expression.parse(expression).calculate(context);
	}

	private static void checkEngineExist(Class clazz){
		// do nothing
	}
}