org.sarons.spring4me.web.widget.bind.support.WidgetConfigMethodArgumentResolver.java Source code

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Here is the source code for org.sarons.spring4me.web.widget.bind.support.WidgetConfigMethodArgumentResolver.java

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/*
 * Copyright 2011-2012 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 org.sarons.spring4me.web.widget.bind.support;

import org.sarons.spring4me.web.widget.config.WidgetConfig;
import org.sarons.spring4me.web.widget.http.HttpWidgetRequest;
import org.sarons.spring4me.web.widget.utils.WidgetConfigUtils;
import org.springframework.core.MethodParameter;
import org.springframework.util.ClassUtils;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

/**
 * 
 * @author Gavin
 * @since 0.4.0
 * @create 2012-3-19 - ?8:56:13
 */
public class WidgetConfigMethodArgumentResolver implements HandlerMethodArgumentResolver {

    public boolean supportsParameter(MethodParameter parameter) {
        return ClassUtils.isAssignable(WidgetConfig.class, parameter.getParameterType());
    }

    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
            NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        return getWidgetConfig(webRequest);
    }

    private WidgetConfig getWidgetConfig(NativeWebRequest webRequest) {
        HttpWidgetRequest widgetRequest = webRequest.getNativeRequest(HttpWidgetRequest.class);
        return WidgetConfigUtils.getWidgetConfig(widgetRequest);
    }

}