2 * Copyright (c) 2010-2021 Contributors to the openHAB project
4 * See the NOTICE file(s) distributed with this work for additional
7 * This program and the accompanying materials are made available under the
8 * terms of the Eclipse Public License 2.0 which is available at
9 * http://www.eclipse.org/legal/epl-2.0
11 * SPDX-License-Identifier: EPL-2.0
13 package org.openhab.binding.lutron.internal.discovery;
15 import static org.openhab.binding.lutron.internal.LutronBindingConstants.*;
17 import java.net.InetAddress;
18 import java.util.Collections;
19 import java.util.HashMap;
22 import java.util.regex.Matcher;
23 import java.util.regex.Pattern;
25 import javax.jmdns.ServiceInfo;
27 import org.eclipse.jdt.annotation.NonNullByDefault;
28 import org.eclipse.jdt.annotation.Nullable;
29 import org.openhab.core.config.discovery.DiscoveryResult;
30 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
31 import org.openhab.core.config.discovery.mdns.MDNSDiscoveryParticipant;
32 import org.openhab.core.thing.Thing;
33 import org.openhab.core.thing.ThingTypeUID;
34 import org.openhab.core.thing.ThingUID;
35 import org.osgi.service.component.annotations.Component;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
40 * The {@link LutronMdnsBridgeDiscoveryService} discovers Lutron Caseta Smart Bridge, Caseta Smart Bridge Pro, RA2
41 * Select Main Repeater, and other Lutron devices on the network using mDNS.
43 * @author Bob Adair - Initial contribution
47 public class LutronMdnsBridgeDiscoveryService implements MDNSDiscoveryParticipant {
49 // Lutron mDNS service <app>.<protocol>.<servicedomain>
50 private static final String LUTRON_MDNS_SERVICE_TYPE = "_lutron._tcp.local.";
52 private static final String PRODFAM_CASETA = "Caseta";
53 private static final String PRODTYP_CASETA_SB = "Smart Bridge";
54 private static final String DEVCLASS_CASETA_SB = "08040100";
55 private static final String PRODTYP_CASETA_SBP2 = "Smart Bridge Pro 2";
56 private static final String DEVCLASS_CASETA_SBP2 = "08050100";
58 private static final String PRODFAM_RA2_SELECT = "RA2 Select";
59 private static final String PRODTYP_RA2_SELECT = "Main Repeater";
60 private static final String DEVCLASS_RA2_SELECT = "080E0401";
62 private static final String DEVCLASS_CONNECT_BRIDGE = "08090301";
63 private static final String DEFAULT_LABEL = "Unknown Lutron bridge";
65 private static final Pattern HOSTNAME_REGEX = Pattern.compile("lutron-([0-9a-f]+)\\."); // ex: lutron-01f1529a.local
67 private final Logger logger = LoggerFactory.getLogger(LutronMdnsBridgeDiscoveryService.class);
70 public Set<ThingTypeUID> getSupportedThingTypeUIDs() {
71 return Collections.singleton(THING_TYPE_IPBRIDGE);
75 public String getServiceType() {
76 return LUTRON_MDNS_SERVICE_TYPE;
80 public @Nullable DiscoveryResult createResult(ServiceInfo service) {
81 if (!service.hasData()) {
85 String nice = service.getNiceTextString();
86 String qualifiedName = service.getQualifiedName();
88 InetAddress[] ipAddresses = service.getInetAddresses();
89 String devclass = service.getPropertyString("DEVCLASS");
90 String codever = service.getPropertyString("CODEVER");
91 String macaddr = service.getPropertyString("MACADDR");
93 logger.debug("Lutron mDNS bridge discovery notified of Lutron mDNS service: {}", nice);
94 logger.trace("Lutron mDNS service qualifiedName: {}", qualifiedName);
95 logger.trace("Lutron mDNS service ipAddresses: {} ({})", ipAddresses, ipAddresses.length);
96 logger.trace("Lutron mDNS service property DEVCLASS: {}", devclass);
97 logger.trace("Lutron mDNS service property CODEVER: {}", codever);
98 logger.trace("Lutron mDNS service property MACADDR: {}", macaddr);
100 Map<String, Object> properties = new HashMap<>();
101 String label = DEFAULT_LABEL;
103 if (ipAddresses.length < 1) {
106 if (ipAddresses.length > 1) {
107 logger.debug("Multiple addresses found for discovered Lutron device. Using only the first.");
109 properties.put(HOST, ipAddresses[0].getHostAddress());
111 String bridgeHostName = ipAddresses[0].getHostName();
112 logger.debug("Lutron mDNS bridge hostname: {}", bridgeHostName);
114 if (DEVCLASS_CASETA_SB.equals(devclass)) {
115 properties.put(PROPERTY_PRODFAM, PRODFAM_CASETA);
116 properties.put(PROPERTY_PRODTYP, PRODTYP_CASETA_SB);
117 label = PRODFAM_CASETA + " " + PRODTYP_CASETA_SB;
118 } else if (DEVCLASS_CASETA_SBP2.equals(devclass)) {
119 properties.put(PROPERTY_PRODFAM, PRODFAM_CASETA);
120 properties.put(PROPERTY_PRODTYP, PRODTYP_CASETA_SBP2);
121 label = PRODFAM_CASETA + " " + PRODTYP_CASETA_SBP2;
122 } else if (DEVCLASS_RA2_SELECT.equals(devclass)) {
123 properties.put(PROPERTY_PRODFAM, PRODFAM_RA2_SELECT);
124 properties.put(PROPERTY_PRODTYP, PRODTYP_RA2_SELECT);
125 label = PRODFAM_RA2_SELECT + " " + PRODTYP_RA2_SELECT;
126 } else if (DEVCLASS_CONNECT_BRIDGE.equals(devclass)) {
127 logger.debug("Lutron Connect Bridge discovered. Ignoring.");
130 logger.info("Lutron device with unknown DEVCLASS discovered via mDNS: {}. Configure device manually.",
132 return null; // Exit if service has unknown DEVCLASS
135 if (!bridgeHostName.equals(ipAddresses[0].getHostAddress())) {
136 label = label + " " + bridgeHostName;
139 if (codever != null) {
140 properties.put(Thing.PROPERTY_FIRMWARE_VERSION, codever);
143 if (macaddr != null) {
144 properties.put(Thing.PROPERTY_MAC_ADDRESS, macaddr);
147 String sn = getSerial(service);
149 logger.trace("Lutron mDNS bridge serial number: {}", sn);
150 properties.put(SERIAL_NUMBER, sn);
152 logger.debug("Unable to determine serial number of discovered Lutron bridge device.");
156 ThingUID uid = getThingUID(service);
158 DiscoveryResult result = DiscoveryResultBuilder.create(uid).withLabel(label).withProperties(properties)
159 .withRepresentationProperty(SERIAL_NUMBER).build();
160 logger.debug("Discovered Lutron bridge device via mDNS {}", uid);
163 logger.trace("Failed to create uid for discovered Lutron bridge device");
169 public @Nullable ThingUID getThingUID(ServiceInfo service) {
170 String serial = getSerial(service);
171 String devclass = service.getPropertyString("DEVCLASS");
172 if (serial == null) {
175 if (DEVCLASS_CASETA_SB.equals(devclass)) {
176 return new ThingUID(THING_TYPE_LEAPBRIDGE, serial);
178 return new ThingUID(THING_TYPE_IPBRIDGE, serial);
184 * Returns the device serial number for the mDNS service by extracting it from the hostname.
185 * Used as unique thing representation property.
187 * @param service Lutron mDNS service
188 * @return String containing serial number, or null if it cannot be determined
190 private @Nullable String getSerial(ServiceInfo service) {
191 InetAddress[] ipAddresses = service.getInetAddresses();
192 if (ipAddresses.length < 1) {
195 Matcher matcher = HOSTNAME_REGEX.matcher(ipAddresses[0].getHostName());
196 boolean matched = matcher.find();
197 String serialnum = null;
200 serialnum = matcher.group(1);
202 if (matched && serialnum != null && !serialnum.isEmpty()) {