com.jjw.cloudymvc.web.mvc.ElementHandlerMapping.java Source code

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Here is the source code for com.jjw.cloudymvc.web.mvc.ElementHandlerMapping.java

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/*
 * Copyright 2002-2011 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
 *
 *      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 com.jjw.cloudymvc.web.mvc;

import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.servlet.mvc.condition.RequestCondition;
import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping;

import java.lang.reflect.Method;

/**
 * Extends RequestMappingHandlerMapping to provide a custom {@link ElementRequestCondition}.
 *
 * Plugged in via {@link com.jjw.cloudymvc.config.WebConfig#requestMappingHandlerMapping()}.
 */
public class ElementHandlerMapping extends RequestMappingHandlerMapping {

    @Override
    protected RequestCondition<?> getCustomTypeCondition(Class<?> handlerType) {
        CloudElement cloudElementAnnotation = AnnotationUtils.findAnnotation(handlerType, CloudElement.class);

        return createElementCondition(cloudElementAnnotation);
    }

    @Override
    protected RequestCondition<?> getCustomMethodCondition(Method method) {
        CloudElementApi cloudElementApiMethodAnnotation = AnnotationUtils.findAnnotation(method,
                CloudElementApi.class);

        return createElementCondition(cloudElementApiMethodAnnotation);
    }

    private RequestCondition<?> createElementCondition(CloudElement cloudElement) {
        return (cloudElement != null) ? new ElementRequestCondition(cloudElement.name()) : null;
    }

    private RequestCondition<?> createElementCondition(CloudElementApi cloudElementApi) {
        return (cloudElementApi != null)
                ? new ElementRequestCondition(cloudElementApi.version(), cloudElementApi.tokenRequired(),
                        cloudElementApi.secretRequired())
                : null;
    }
}