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   1 /**
   2  * Copyright (c) 2010-2023 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   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
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.binding.plugwise.internal.protocol;
  14
  15 import static org.openhab.binding.plugwise.internal.protocol.field.MessageType.NETWORK_STATUS_RESPONSE;
  16
  17 import java.util.regex.Matcher;
  18 import java.util.regex.Pattern;
  19
  20 import org.openhab.binding.plugwise.internal.protocol.field.MACAddress;
  21
  22 /**
  23  * Contains the current network status as well as the MAC address of the Circle+ that coordinates the network. The Stick
  24  * sends this message as response of a {@link NetworkStatusRequestMessage}.
  25  *
  26  * @author Wouter Born, Karel Goderis - Initial contribution
  27  */
  28 public class NetworkStatusResponseMessage extends Message {
  29
  30     private static final Pattern PAYLOAD_PATTERN = Pattern
  31             .compile("(\\w{16})(\\w{2})(\\w{2})(\\w{16})(\\w{4})(\\w{2})");
  32
  33     private boolean online;
  34     private String networkID;
  35     private String unknown1;
  36     private String unknown2;
  37     private String shortNetworkID;
  38
  39     private MACAddress circlePlusMAC;
  40
  41     public NetworkStatusResponseMessage(int sequenceNumber, String payload) {
  42         super(NETWORK_STATUS_RESPONSE, sequenceNumber, payload);
  43     }
  44
  45     public NetworkStatusResponseMessage(String payload) {
  46         super(NETWORK_STATUS_RESPONSE, payload);
  47     }
  48
  49     public MACAddress getCirclePlusMAC() {
  50         return circlePlusMAC;
  51     }
  52
  53     public String getNetworkID() {
  54         return networkID;
  55     }
  56
  57     public String getShortNetworkID() {
  58         return shortNetworkID;
  59     }
  60
  61     public String getUnknown1() {
  62         return unknown1;
  63     }
  64
  65     public String getUnknown2() {
  66         return unknown2;
  67     }
  68
  69     public boolean isOnline() {
  70         return online;
  71     }
  72
  73     @Override
  74     protected void parsePayload() {
  75         Matcher matcher = PAYLOAD_PATTERN.matcher(payload);
  76         if (matcher.matches()) {
  77             macAddress = new MACAddress(matcher.group(1));
  78             unknown1 = matcher.group(2);
  79             online = (Integer.parseInt(matcher.group(3), 16) == 1);
  80             networkID = matcher.group(4);
  81             shortNetworkID = matcher.group(5);
  82             unknown2 = matcher.group(6);
  83
  84             // now some serious protocol reverse-engineering assumption. Circle+ MAC = networkID with first two bytes
  85             // replaced by 00
  86             circlePlusMAC = new MACAddress("00" + networkID.substring(2));
  87         } else {
  88             throw new PlugwisePayloadMismatchException(NETWORK_STATUS_RESPONSE, PAYLOAD_PATTERN, payload);
  89         }
  90     }
  91
  92     @Override
  93     protected String payloadToHexString() {
  94         return unknown1 + String.format("%02X", online ? 1 : 0) + networkID + shortNetworkID + unknown2;
  95     }
  96 }