dk.ilios.spanner.util.Reflection.java Source code

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Here is the source code for dk.ilios.spanner.util.Reflection.java

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/*
 * Copyright (C) 2013 Google Inc.
 *
 * 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
 *
 * http://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 dk.ilios.spanner.util;

import com.google.common.collect.ImmutableSet;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;

/**
 * A utility class for common reflection operations in Spanner.
 */
public final class Reflection {
    private Reflection() {
    }

    public static ImmutableSet<Method> getAnnotatedMethods(Class<?> clazz,
            Class<? extends Annotation> annotationClass) {
        Method[] methods = clazz.getDeclaredMethods();
        ImmutableSet.Builder<Method> builder = ImmutableSet.builder();
        for (Method method : methods) {
            if (method.isAnnotationPresent(annotationClass)) {
                method.setAccessible(true);
                builder.add(method);
            }
        }
        return builder.build();
    }
}