AIR.Common.Web.Session.Server.java Source code

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Here is the source code for AIR.Common.Web.Session.Server.java

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/*******************************************************************************
 * Educational Online Test Delivery System Copyright (c) 2014 American
 * Institutes for Research
 * 
 * Distributed under the AIR Open Source License, Version 1.0 See accompanying
 * file AIR-License-1_0.txt or at http://www.smarterapp.org/documents/
 * American_Institutes_for_Research_Open_Source_Software_License.pdf
 ******************************************************************************/
/**
 * 
 */
package AIR.Common.Web.Session;

import javax.servlet.ServletContext;

import org.apache.commons.lang.StringUtils;

import AIR.Common.Utilities.Path;

/**
 * @author Shiva BEHERA [sbehera@air.org]
 * 
 */
public class Server {
    private static String _contextPath = null;
    private static String _docBasePath = null;
    private static ServletContext _context = null;

    public static void setServletContext(ServletContext value) {
        _context = value;
    }

    public static void setContextPath(String value) {
        _contextPath = value;
    }

    public static String getContextPath() {
        return _contextPath;
    }

    public static void setDocBasePath(String value) {
        _docBasePath = value;
    }

    public static String getDocBasePath() {
        return _docBasePath;
    }

    // TODO Shiva we have a problem here. the problem is virtual paths like "."
    // and "~/" or "./xyz" or "~/xyz" will not be mapped properly
    // to real path.
    public static String mapPath(String virtualPath) {
        String path = null;
        if (Path.isAbsolute(virtualPath)) {
            path = virtualPath;
        }
        // if the path begins with "~/" then remove the "~/" as it will be mapped to
        // the
        // realpath.
        // TODO shiva/sajib are there any other such cases e.g. "./"?
        else {
            if (virtualPath.startsWith("~/"))
                virtualPath = virtualPath.substring(2);

            if (virtualPath.indexOf(getContextPath()) == 0)
                virtualPath = virtualPath.substring(getContextPath().length());
            path = CaseInsensitiveFileNameFilter.remapUri(virtualPath);
            path = _context.getRealPath(path);
        }

        return path;
    }

    /*
     * relative path may have a "~" in it. the o
     */
    // TODO Shiva/Sajib. We may need to revisit this.
    // TODO this is very hacky!!!
    public static String resolveUrl(String relativePath) {
        if (StringUtils.isEmpty(relativePath))
            relativePath = "";
        // Shiva/Sajib: Do not do .toLowerCase()
        if (StringUtils.startsWith(relativePath, "http"))
            return relativePath;
        if (StringUtils.startsWith(relativePath, "~/")) {
            return getContextPath() + relativePath.substring(1);
        } else if (StringUtils.startsWith(relativePath, "/"))
            return getContextPath() + relativePath;
        return getContextPath() + "/" + relativePath;
    }

}