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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014 Red Hat, Inc., and individual contributors
 * as indicated by the @author tags.
 *
 * 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 io.undertow.util;

import io.undertow.UndertowMessages;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.session.Session;
import io.undertow.server.session.SessionConfig;
import io.undertow.server.session.SessionManager;

/**
 * Utility class for working with sessions.
 *
 * @author Stuart Douglas
 */
public class Sessions {

    /**
     * Gets the active session, returning null if one is not present.
     * @param exchange The exchange
     * @return The session
     */
    public static Session getSession(final HttpServerExchange exchange) {
        return getSession(exchange, false);
    }

    /**
     * Gets the active session, creating a new one if one does not exist
     * @param exchange The exchange
     * @return The session
     */
    public static Session getOrCreateSession(final HttpServerExchange exchange) {
        return getSession(exchange, true);
    }

    private static Session getSession(final HttpServerExchange exchange, boolean create) {
        SessionManager sessionManager = exchange.getAttachment(SessionManager.ATTACHMENT_KEY);
        SessionConfig sessionConfig = exchange.getAttachment(SessionConfig.ATTACHMENT_KEY);
        if(sessionManager == null) {
            throw UndertowMessages.MESSAGES.sessionManagerNotFound();
        }
        Session session = sessionManager.getSession(exchange, sessionConfig);
        if(session == null && create) {
            session = sessionManager.createSession(exchange, sessionConfig);
        }
        return session;
    }

    private Sessions () {}

}