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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.server.handlers;

import java.util.Date;

import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.util.DateUtils;
import io.undertow.util.Headers;

/**
 * Class that adds the Date: header to a HTTP response.
 *
 * The current date string is cached, and is updated every second in a racey
 * manner (i.e. it is possible for two thread to update it at once).
 * 
 * This handler is deprecated, the same functionality is achieved by using the
 * server option {@link io.undertow.UndertowOptions#ALWAYS_SET_DATE ALWAYS_SET_DATE}.
 * It is enabled by default.
 *
 * @author Stuart Douglas
 */
@Deprecated()
public class DateHandler implements HttpHandler {

    private final HttpHandler next;
    private volatile String cachedDateString;
    private volatile long nextUpdateTime = -1;


    public DateHandler(final HttpHandler next) {
        this.next = next;
    }

    @Override
    public void handleRequest(final HttpServerExchange exchange) throws Exception {
        // better method is used in DateUtils#addDateHeaderIfRequired
        long time = System.nanoTime();
        if(time < nextUpdateTime) {
            exchange.getResponseHeaders().put(Headers.DATE, cachedDateString);
        } else {
            long realTime = System.currentTimeMillis();
            String dateString = DateUtils.toDateString(new Date(realTime));
            cachedDateString = dateString;
            nextUpdateTime = time + 1000000000;
            exchange.getResponseHeaders().put(Headers.DATE, dateString);
        }
        next.handleRequest(exchange);
    }


}