org.appfuse.webapp.util.RequestUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of appfuse-web-common Show documentation
Show all versions of appfuse-web-common Show documentation
Common web files (images, stylesheets, scripts) and Java classes (listeners and filters) used
by all web frameworks. This module is not meant to be included in a project utilizing AppFuse.
It's designed to be used internally by AppFuse only.
package org.appfuse.webapp.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Convenience class for setting and retrieving cookies.
*/
public final class RequestUtil {
private static final Log log = LogFactory.getLog(RequestUtil.class);
/**
* Checkstyle rule: utility classes should not have public constructor
*/
private RequestUtil() {
}
/**
* Convenience method to set a cookie
*
* @param response the current response
* @param name the name of the cookie
* @param value the value of the cookie
* @param path the path to set it on
*/
public static void setCookie(HttpServletResponse response, String name,
String value, String path) {
if (log.isDebugEnabled()) {
log.debug("Setting cookie '" + name + "' on path '" + path + "'");
}
Cookie cookie = new Cookie(name, value);
cookie.setSecure(false);
cookie.setPath(path);
cookie.setMaxAge(3600 * 24 * 30); // 30 days
response.addCookie(cookie);
}
/**
* Convenience method to get a cookie by name
*
* @param request the current request
* @param name the name of the cookie to find
*
* @return the cookie (if found), null if not found
*/
public static Cookie getCookie(HttpServletRequest request, String name) {
Cookie[] cookies = request.getCookies();
Cookie returnCookie = null;
if (cookies == null) {
return returnCookie;
}
for (final Cookie thisCookie : cookies) {
if (thisCookie.getName().equals(name) && !"".equals(thisCookie.getValue())) {
returnCookie = thisCookie;
break;
}
}
return returnCookie;
}
/**
* Convenience method for deleting a cookie by name
*
* @param response the current web response
* @param cookie the cookie to delete
* @param path the path on which the cookie was set (i.e. /appfuse)
*/
public static void deleteCookie(HttpServletResponse response,
Cookie cookie, String path) {
if (cookie != null) {
// Delete the cookie by setting its maximum age to zero
cookie.setMaxAge(0);
cookie.setPath(path);
response.addCookie(cookie);
}
}
/**
* Convenience method to get the application's URL based on request
* variables.
*
* @param request the current request
* @return URL to application
*/
public static String getAppURL(HttpServletRequest request) {
if (request == null) return "";
StringBuffer url = new StringBuffer();
int port = request.getServerPort();
if (port < 0) {
port = 80; // Work around java.net.URL bug
}
String scheme = request.getScheme();
url.append(scheme);
url.append("://");
url.append(request.getServerName());
if ((scheme.equals("http") && (port != 80)) || (scheme.equals("https") && (port != 443))) {
url.append(':');
url.append(port);
}
url.append(request.getContextPath());
return url.toString();
}
}
© 2015 - 2024 Weber Informatics LLC | Privacy Policy