com.livk.commons.expression.aviator.SpringContextFunctionLoader Maven / Gradle / Ivy
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/*
* Copyright 2021-2024 spring-boot-extension the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.livk.commons.expression.aviator;
import com.googlecode.aviator.AviatorEvaluator;
import com.googlecode.aviator.FunctionLoader;
import com.googlecode.aviator.runtime.type.AviatorFunction;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.context.ApplicationContext;
/**
* FunctionLoader spring拓展
*
* 从IOC容器中获取AviatorFunction
*
* @author livk
* @see AviatorFunction
*/
@RequiredArgsConstructor
public class SpringContextFunctionLoader implements FunctionLoader, InitializingBean, DisposableBean {
private final ApplicationContext applicationContext;
@Override
public AviatorFunction onFunctionNotFound(String name) {
try {
return this.applicationContext.getBean(name, AviatorFunction.class);
}
catch (NoSuchBeanDefinitionException e) {
return null;
}
}
@Override
public void afterPropertiesSet() {
AviatorEvaluator.addFunctionLoader(this);
}
@Override
public void destroy() {
AviatorEvaluator.removeFunctionLoader(this);
}
}