de.alpharogroup.wicket.base.util.SessionExtensions.java Source code

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Here is the source code for de.alpharogroup.wicket.base.util.SessionExtensions.java

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/**
 * Copyright (C) 2010 Asterios Raptis
 *
 * 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 de.alpharogroup.wicket.base.util;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.wicket.Application;
import org.apache.wicket.protocol.http.IRequestLogger;
import org.apache.wicket.protocol.http.IRequestLogger.SessionData;
import org.apache.wicket.protocol.http.RequestLogger;
import org.apache.wicket.protocol.http.WebApplication;

/**
 * The Class SessionExtensions.
 */
public class SessionExtensions {

    /**
     * Gets the current http session.
     *
     * @return the current http session.
     */
    public static HttpSession getHttpSession() {
        final HttpServletRequest request = WicketComponentExtensions.getHttpServletRequest();
        if (request != null) {
            final HttpSession session = request.getSession(false);
            if (session != null) {
                return session;
            }
        }
        return null;
    }

    /**
     * Gets the live sessions.
     *
     * @return the live sessions
     */
    public static List<SessionData> getLiveSessions() {
        return new ArrayList<>(Arrays.asList(getRequestLogger().getLiveSessions()));
    }

    /**
     * Gets the peak sessions counter.
     *
     * @return the peak sessions counter.
     */
    public static Integer getPeakSessions() {
        return getRequestLogger().getPeakSessions();
    }

    /**
     * Gets the request logger of the current WebApplication.
     *
     * @return the request logger
     */
    public static IRequestLogger getRequestLogger() {
        return getRequestLogger(null);
    }

    /**
     * Gets the request logger from the given WebApplication.
     *
     * @param webApplication
     *            the web application
     * @return the request logger
     */
    public static IRequestLogger getRequestLogger(final WebApplication webApplication) {
        IRequestLogger requestLogger;
        if (webApplication == null) {
            requestLogger = ((WebApplication) Application.get()).getRequestLogger();
        } else {
            requestLogger = webApplication.getRequestLogger();
        }

        if (requestLogger == null) {
            requestLogger = new RequestLogger();
        }
        return requestLogger;
    }

    /**
     * Gets the session timeout.
     *
     * @return the session timeout
     */
    public static int getSessionTimeout() {
        final HttpSession session = getHttpSession();
        if (session != null) {
            return session.getMaxInactiveInterval();
        }
        return -1;
    }

    /**
     * Sets the given interval(in seconds) that will be set the session timeout.
     *
     * @param interval
     *            The number of seconds.
     *
     * @return the given interval(in seconds) or -1 if the {@link javax.servlet.http.HttpSession} is
     *         null.
     */
    public static int setSessionTimeout(final int interval) {
        final HttpSession session = getHttpSession();
        if (session != null) {
            session.setMaxInactiveInterval(interval);
            return interval;
        }
        return -1;
    }

}