001package ball.upnp.ssdp;
002/*-
003 * ##########################################################################
004 * UPnP/SSDP Implementation Classes
005 * $Id: SSDPDiscoveryRequest.java 5285 2020-02-05 04:23:21Z ball $
006 * $HeadURL: svn+ssh://svn.hcf.dev/var/spool/scm/repository.svn/ball-upnp/trunk/src/main/java/ball/upnp/ssdp/SSDPDiscoveryRequest.java $
007 * %%
008 * Copyright (C) 2013 - 2020 Allen D. Ball
009 * %%
010 * Licensed under the Apache License, Version 2.0 (the "License");
011 * you may not use this file except in compliance with the License.
012 * You may obtain a copy of the License at
013 *
014 *      http://www.apache.org/licenses/LICENSE-2.0
015 *
016 * Unless required by applicable law or agreed to in writing, software
017 * distributed under the License is distributed on an "AS IS" BASIS,
018 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
019 * See the License for the specific language governing permissions and
020 * limitations under the License.
021 * ##########################################################################
022 */
023import org.apache.http.HttpHeaders;
024
025/**
026 * SSDP discovery ({@value #METHOD}) {@link SSDPRequest}.
027 *
028 * {@bean.info}
029 *
030 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball}
031 * @version $Revision: 5285 $
032 */
033public class SSDPDiscoveryRequest extends SSDPRequest {
034
035    /**
036     * {@link SSDPRequest} method name ({@value #METHOD})
037     */
038    public static final String METHOD = "M-SEARCH";
039
040    /**
041     * Sole constructor.
042     */
043    public SSDPDiscoveryRequest() {
044        super(METHOD);
045
046        addHeader(HttpHeaders.HOST.toUpperCase(), toString(ADDRESS));
047        addHeader(MAN, "\"ssdp:discover\"");
048        addHeader(MX, String.valueOf(120));
049        addHeader(ST, "ssdp:all");
050    }
051}