org.springframework.boot.cli.compiler.grape.GrapeEngineInstaller Maven / Gradle / Ivy
/*
* Copyright 2012-2019 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 org.springframework.boot.cli.compiler.grape;
import java.lang.reflect.Field;
import groovy.grape.Grape;
import groovy.grape.GrapeEngine;
/**
* Utility to install a specific {@link Grape} engine with Groovy.
*
* @author Andy Wilkinson
* @since 1.0.0
*/
public abstract class GrapeEngineInstaller {
public static void install(GrapeEngine engine) {
synchronized (Grape.class) {
try {
Field field = Grape.class.getDeclaredField("instance");
field.setAccessible(true);
field.set(null, engine);
}
catch (Exception ex) {
throw new IllegalStateException("Failed to install GrapeEngine", ex);
}
}
}
}