git.basschouten.com Git - openhab-addons.git/blob

   1 /**
   2  * Copyright (c) 2010-2021 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.rfxcom.internal.messages;
  14
  15 import static org.openhab.binding.rfxcom.internal.RFXComBindingConstants.*;
  16 import static org.openhab.binding.rfxcom.internal.messages.RFXComBaseMessage.PacketType.RAW;
  17
  18 import java.nio.ByteBuffer;
  19 import java.util.stream.Collectors;
  20 import java.util.stream.IntStream;
  21
  22 import org.openhab.binding.rfxcom.internal.config.RFXComDeviceConfiguration;
  23 import org.openhab.binding.rfxcom.internal.config.RFXComRawDeviceConfiguration;
  24 import org.openhab.binding.rfxcom.internal.exceptions.RFXComException;
  25 import org.openhab.binding.rfxcom.internal.exceptions.RFXComInvalidStateException;
  26 import org.openhab.binding.rfxcom.internal.exceptions.RFXComMessageTooLongException;
  27 import org.openhab.binding.rfxcom.internal.exceptions.RFXComUnsupportedChannelException;
  28 import org.openhab.binding.rfxcom.internal.exceptions.RFXComUnsupportedValueException;
  29 import org.openhab.binding.rfxcom.internal.handler.DeviceState;
  30 import org.openhab.core.library.types.OnOffType;
  31 import org.openhab.core.library.types.OpenClosedType;
  32 import org.openhab.core.library.types.StringType;
  33 import org.openhab.core.types.State;
  34 import org.openhab.core.types.Type;
  35 import org.openhab.core.util.HexUtils;
  36
  37 /**
  38  * RFXCOM data class for raw messages.
  39  *
  40  * @author James Hewitt-Thomas - New addition to the PRO RFXCom firmware
  41  */
  42 public class RFXComRawMessage extends RFXComDeviceMessageImpl<RFXComRawMessage.SubType> {
  43
  44     public enum SubType implements ByteEnumWrapper {
  45         RAW_PACKET1(0x00),
  46         RAW_PACKET2(0x01),
  47         RAW_PACKET3(0x02),
  48         RAW_PACKET4(0x03),
  49
  50         UNKNOWN(0xFF);
  51
  52         private final int subType;
  53
  54         SubType(int subType) {
  55             this.subType = subType;
  56         }
  57
  58         @Override
  59         public byte toByte() {
  60             return (byte) subType;
  61         }
  62
  63         public static SubType fromByte(int input) {
  64             for (SubType c : SubType.values()) {
  65                 if (c.subType == input) {
  66                     return c;
  67                 }
  68             }
  69
  70             return SubType.UNKNOWN;
  71         }
  72     }
  73
  74     public SubType subType;
  75     public byte repeat;
  76     public short[] pulses;
  77
  78     private RFXComRawDeviceConfiguration config;
  79
  80     public RFXComRawMessage() {
  81         super(RAW);
  82         pulses = new short[0];
  83     }
  84
  85     public RFXComRawMessage(byte[] message) throws RFXComException {
  86         encodeMessage(message);
  87     }
  88
  89     @Override
  90     public String toString() {
  91         String str = super.toString();
  92
  93         str += ", Sub type = " + subType;
  94
  95         return str;
  96     }
  97
  98     @Override
  99     public void encodeMessage(byte[] message) throws RFXComException {
 100         super.encodeMessage(message);
 101
 102         final int pulsesByteLen = rawMessage.length - 5;
 103         if (pulsesByteLen % 4 != 0) {
 104             throw new RFXComException("Incorrect byte length for pulses - must be divisible by 4");
 105         }
 106
 107         subType = SubType.fromByte(super.subType);
 108         repeat = rawMessage[4];
 109         pulses = new short[pulsesByteLen / 2];
 110         ByteBuffer.wrap(rawMessage, 5, rawMessage.length - 5).asShortBuffer().get(pulses);
 111     }
 112
 113     @Override
 114     public byte[] decodeMessage() throws RFXComException {
 115         if (pulses.length > 124) {
 116             throw new RFXComMessageTooLongException("Longest payload according to RFXtrx SDK is 124 shorts.");
 117         }
 118
 119         final int pulsesByteLen = pulses.length * 2;
 120         byte[] data = new byte[5 + pulsesByteLen];
 121
 122         data[0] = (byte) (data.length - 1);
 123         data[1] = RAW.toByte();
 124         data[2] = subType.toByte();
 125         data[3] = seqNbr;
 126         data[4] = (byte) config.repeat;
 127
 128         ByteBuffer.wrap(data, 5, pulsesByteLen).asShortBuffer().put(pulses);
 129
 130         return data;
 131     }
 132
 133     @Override
 134     public String getDeviceId() {
 135         return "RAW";
 136     }
 137
 138     @Override
 139     public void setConfig(RFXComDeviceConfiguration config) throws RFXComException {
 140         super.setConfig(config);
 141         this.config = (RFXComRawDeviceConfiguration) config;
 142     }
 143
 144     @Override
 145     public State convertToState(String channelId, DeviceState deviceState) throws RFXComUnsupportedChannelException {
 146         switch (channelId) {
 147             case CHANNEL_RAW_MESSAGE:
 148                 return new StringType(HexUtils.bytesToHex(rawMessage));
 149
 150             case CHANNEL_RAW_PAYLOAD:
 151                 byte[] payload = new byte[pulses.length * 2];
 152                 ByteBuffer.wrap(payload).asShortBuffer().put(pulses);
 153                 return new StringType(HexUtils.bytesToHex(payload));
 154
 155             case CHANNEL_PULSES:
 156                 return new StringType(IntStream.range(0, pulses.length)
 157                         .mapToObj(s -> Integer.toString(Short.toUnsignedInt(pulses[s])))
 158                         .collect(Collectors.joining(" ")));
 159
 160             default:
 161                 throw new RFXComUnsupportedChannelException("Nothing relevant for " + channelId);
 162         }
 163     }
 164
 165     @Override
 166     public void setSubType(SubType subType) {
 167         this.subType = subType;
 168     }
 169
 170     @Override
 171     public void setDeviceId(String deviceId) {
 172         // Nothing to do here
 173     }
 174
 175     @Override
 176     public void convertFromState(String channelId, Type type)
 177             throws RFXComUnsupportedChannelException, RFXComInvalidStateException {
 178         switch (channelId) {
 179             case CHANNEL_RAW_MESSAGE:
 180             case CHANNEL_RAW_PAYLOAD:
 181             case CHANNEL_PULSES:
 182                 throw new RFXComUnsupportedChannelException("Cannot send on channel " + channelId);
 183
 184             case CHANNEL_COMMAND:
 185                 if (type instanceof OnOffType) {
 186                     if (type == OnOffType.ON) {
 187                         this.pulses = config.onPulsesArray;
 188                     } else {
 189                         this.pulses = config.offPulsesArray;
 190                     }
 191                 } else if (type instanceof OpenClosedType) {
 192                     if (type == OpenClosedType.OPEN) {
 193                         this.pulses = config.openPulsesArray;
 194                     } else {
 195                         this.pulses = config.closedPulsesArray;
 196                     }
 197                 } else {
 198                     throw new RFXComUnsupportedChannelException("Channel " + channelId + " does not accept " + type);
 199                 }
 200
 201                 if (this.pulses == null) {
 202                     throw new RFXComInvalidStateException(channelId, null,
 203                             "No pulses provided in the device configuration for command" + type);
 204                 }
 205
 206                 break;
 207
 208             default:
 209                 throw new RFXComUnsupportedChannelException("Channel " + channelId + " is not relevant here");
 210         }
 211     }
 212
 213     @Override
 214     public SubType convertSubType(String subType) throws RFXComUnsupportedValueException {
 215         return ByteEnumUtil.convertSubType(SubType.class, subType);
 216     }
 217 }