it.f2informatica.webapp.utils.HttpRequest.java Source code

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Here is the source code for it.f2informatica.webapp.utils.HttpRequest.java

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/*
 * =============================================================================
 *
 *   Copyright (c) 2014, Fernando Aspiazu
 *
 *   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 it.f2informatica.webapp.utils;

import it.f2informatica.webapp.WebApplicationConfig;
import org.apache.commons.lang3.LocaleUtils;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.util.WebUtils;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import java.util.Locale;

/**
 * Class which represents the current Http Request performed.
 */
@Component
public class HttpRequest {

    /**
     * Returns the current locale associated to this request
     * if any has been selected, otherwise it will return the
     * default browser locale.
     *
     * @return the current locale
     */
    public Locale getLocale() {
        String languageParam = getHttpServletRequest().getParameter(WebApplicationConfig.LANGUAGE);
        if (StringUtils.hasText(languageParam)) {
            return LocaleUtils.toLocale(languageParam);
        }
        Cookie cookie = getCookie(WebApplicationConfig.CURRENT_LOCALE_COOKIE);
        return (cookie != null) ? LocaleUtils.toLocale(cookie.getValue()) : getHttpServletRequest().getLocale();
    }

    /**
     * Gets the cookie associated to this request given
     * the cookie's name.
     *
     * @param cookieName name of cookie which wish be retrieved
     * @return Cookie belonging this request
     */
    public Cookie getCookie(String cookieName) {
        return WebUtils.getCookie(getHttpServletRequest(), cookieName);
    }

    /**
     * Gets the current Http Request
     */
    public HttpServletRequest getHttpServletRequest() {
        return getServletRequestAttributes().getRequest();
    }

    /**
     * Gets servlet attributes
     */
    public ServletRequestAttributes getServletRequestAttributes() {
        return (ServletRequestAttributes) currentRequestAttributes();
    }

    private RequestAttributes currentRequestAttributes() {
        return RequestContextHolder.currentRequestAttributes();
    }

}