org.instancio.junit.internal.ReflectionUtils Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2022-2024 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.instancio.junit.internal;

import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.List;

import static java.util.stream.Collectors.toList;

final class ReflectionUtils {

    private ReflectionUtils() {
        // non-instantiable
    }

    static List getAnnotatedFields(final Class klass, final Class annotation) {
        return Arrays.stream(klass.getDeclaredFields())
                .filter(field -> field.getAnnotation(annotation) != null)
                .collect(toList());
    }

    @SuppressWarnings("java:S3011")
    static Object getFieldValue(final Field field, final Object target) {
        try {
            field.setAccessible(true);
            return field.get(target);
        } catch (Exception ex) {
            return null;
        }
    }

}