org.ff4j.web.utils.WebUtils Maven / Gradle / Ivy
package org.ff4j.web.utils;
/*
* #%L
* ff4j-sample-web
* %%
* Copyright (C) 2013 - 2016 FF4J
* %%
* 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.
* #L%
*/
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.ff4j.utils.Util;
public class WebUtils {
public static Cookie getCookie(HttpServletRequest request, String name) {
Util.assertNotNull(request);
Cookie cookies[] = request.getCookies();
if (cookies != null) {
for (Cookie cookie : cookies) {
if (name.equals(cookie.getName())) {
return cookie;
}
}
}
return null;
}
public static String getSessionId(HttpServletRequest request) {
Util.assertNotNull(request);
HttpSession session = request.getSession(false);
return (session != null ? session.getId() : null);
}
public static Object getSessionAttribute(HttpServletRequest request, String name) {
Util.assertNotNull(request);
HttpSession session = request.getSession(false);
return (session != null ? session.getAttribute(name) : null);
}
public static void setSessionAttribute(HttpServletRequest request, String name, Object value) {
Util.assertNotNull(request);
if (value != null) {
request.getSession().setAttribute(name, value);
}
else {
HttpSession session = request.getSession(false);
if (session != null) {
session.removeAttribute(name);
}
}
}
}