forked from spockframework/spock
/
ByteBuddyTestClassLoader.java
55 lines (49 loc) · 1.84 KB
/
ByteBuddyTestClassLoader.java
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/*
* Copyright 2023 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.spockframework.mock.runtime;
import net.bytebuddy.ByteBuddy;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;
import java.util.HashMap;
import java.util.Map;
final class ByteBuddyTestClassLoader extends ClassLoader {
private final Map<String, Class<?>> cache = new HashMap<>();
private final ClassLoadingStrategy<ByteBuddyTestClassLoader> loadingStrategy = (loader, types) -> {
Map<TypeDescription, Class<?>> result = new HashMap<>();
for (Map.Entry<TypeDescription, byte[]> entry : types.entrySet()) {
TypeDescription description = entry.getKey();
byte[] bytes = entry.getValue();
Class<?> clazz = defineClass(description.getName(), bytes, 0, bytes.length);
result.put(description, clazz);
}
return result;
};
/**
* Defines an empty interface with the passed {@code node}.
*
* @param name the name of the interface
* @return the loaded {@code Class}
*/
synchronized Class<?> defineInterface(String name) {
//noinspection resource
return cache.computeIfAbsent(name, nameKey -> new ByteBuddy()
.makeInterface()
.name(nameKey)
.make()
.load(this, loadingStrategy)
.getLoaded());
}
}