architecture.ee.web.util.ServletUtils.java Source code

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Here is the source code for architecture.ee.web.util.ServletUtils.java

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/*
 * Copyright 2012 Donghyuck, Son
 *
 * 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 architecture.ee.web.util;

import java.net.InetAddress;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.UnknownHostException;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import architecture.ee.util.OutputFormat;

public class ServletUtils {

    private static Log log = LogFactory.getLog(ServletUtils.class);

    public static final String CONTEXT_ROOT_PATH = "";

    public static Map getModelMap(HttpServletRequest request, HttpServletResponse response) {
        ModelMap modelMap = (ModelMap) request.getAttribute(WebApplicatioinConstants.MODEL_ATTRIBUTE);
        if (modelMap == null) {
            modelMap = new ModelMap();
        }
        return modelMap;
    }

    public static InetAddress getLocalHost() {
        try {
            return InetAddress.getLocalHost();
        } catch (UnknownHostException e) {
            return null;
        }
    }

    public static String getLocalHostAddr() {
        InetAddress addr = getLocalHost();
        if (addr == null)
            return null;
        return addr.getHostAddress();
    }

    public static String getDomainName(HttpServletRequest request, boolean opt) {
        String url = request.getHeader("Referer");

        return getDomainName(url, opt);
    }

    public static String getDomainName(String url, boolean opt) {

        if (StringUtils.isNotEmpty(url)) {
            try {
                URI uri = new URI(url);
                String domain = uri.getHost();
                if (opt)
                    return domain.startsWith("www.") ? domain.substring(4) : domain;
                return domain;
            } catch (URISyntaxException e) {
            }
        }
        return null;
    }

    public static String getContextPath(HttpServletRequest request) {

        if (StringUtils.isEmpty(request.getContextPath())) {
            return CONTEXT_ROOT_PATH;
        } else if (StringUtils.equals("/", request.getContextPath().trim())) {
            return CONTEXT_ROOT_PATH;
        } else {
            return request.getContextPath();
        }
    }

    public static String getServletPath(HttpServletRequest request) {
        String thisPath = request.getServletPath();
        if (thisPath == null) {
            String requestURI = request.getRequestURI();
            if (request.getPathInfo() != null)
                thisPath = requestURI.substring(0, requestURI.indexOf(request.getPathInfo()));
            else
                thisPath = requestURI;
        } else if (thisPath.equals("") && request.getPathInfo() != null)
            thisPath = request.getPathInfo();
        return thisPath;
    }

    public static OutputFormat getOutputFormat(HttpServletRequest httpservletrequest,
            HttpServletResponse httpservletresponse) {
        String formatString = ParamUtils.getParameter(httpservletrequest, "output", "html");
        if (StringUtils.isNotEmpty(ParamUtils.getAttribute(httpservletrequest, "output"))) {
            formatString = ParamUtils.getAttribute(httpservletrequest, "output");
        }
        OutputFormat format = OutputFormat.stingToOutputFormat(formatString);
        return format;
    }

    public static UAgentInfo getUserAgentInfo(HttpServletRequest httpservletrequest) {
        return new UAgentInfo(httpservletrequest);

    }

}