net.paslavsky.springrest.CacheableAnnotationPreprocessor.java Source code

Introduction

Here is the source code for net.paslavsky.springrest.CacheableAnnotationPreprocessor.java

Source

/*
 * Copyright (c) 2014 Andrey Paslavsky.
 *
 * 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 net.paslavsky.springrest;

import org.springframework.util.Assert;

import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;

/**
 * TODO Class description
 *
 * @author Andrey Paslavsky
 * @version 1.0
 */
public class CacheableAnnotationPreprocessor implements AnnotationPreprocessor {
    private final AnnotationPreprocessor delegate;
    private Map<Method, RestMethodMetadata> cache;

    public CacheableAnnotationPreprocessor(AnnotationPreprocessor delegate) {
        Assert.notNull(delegate);
        this.delegate = delegate;
        cache = new HashMap<Method, RestMethodMetadata>();
    }

    @Override
    public RestMethodMetadata parse(Class<?> clientClass, Method method) {
        RestMethodMetadata metadata = cache.get(method);
        if (metadata == null) {
            metadata = delegate.parse(clientClass, method);
            cache.put(method, metadata);
        }
        return metadata;
    }
}