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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.velbus.internal.handler;
  14
  15 import static org.openhab.binding.velbus.internal.VelbusBindingConstants.*;
  16
  17 import java.util.Arrays;
  18 import java.util.HashSet;
  19 import java.util.Set;
  20
  21 import org.eclipse.jdt.annotation.NonNullByDefault;
  22 import org.eclipse.jdt.annotation.Nullable;
  23 import org.openhab.binding.velbus.internal.VelbusChannelIdentifier;
  24 import org.openhab.binding.velbus.internal.VelbusFirstGenerationDeviceModuleAddress;
  25 import org.openhab.binding.velbus.internal.VelbusModuleAddress;
  26 import org.openhab.binding.velbus.internal.config.VelbusThingConfig;
  27 import org.openhab.binding.velbus.internal.packets.VelbusBlindOffPacket;
  28 import org.openhab.binding.velbus.internal.packets.VelbusBlindPositionPacket;
  29 import org.openhab.binding.velbus.internal.packets.VelbusBlindUpDownPacket;
  30 import org.openhab.binding.velbus.internal.packets.VelbusPacket;
  31 import org.openhab.binding.velbus.internal.packets.VelbusStatusRequestPacket;
  32 import org.openhab.core.library.types.PercentType;
  33 import org.openhab.core.library.types.StopMoveType;
  34 import org.openhab.core.library.types.UpDownType;
  35 import org.openhab.core.thing.ChannelUID;
  36 import org.openhab.core.thing.Thing;
  37 import org.openhab.core.thing.ThingStatus;
  38 import org.openhab.core.thing.ThingStatusDetail;
  39 import org.openhab.core.thing.ThingTypeUID;
  40 import org.openhab.core.types.Command;
  41 import org.openhab.core.types.RefreshType;
  42
  43 /**
  44  * The {@link VelbusBlindsHandler} is responsible for handling commands, which are
  45  * sent to one of the channels.
  46  *
  47  * @author Cedric Boon - Initial contribution
  48  */
  49 @NonNullByDefault
  50 public class VelbusBlindsHandler extends VelbusThingHandler {
  51     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = new HashSet<>(
  52             Arrays.asList(THING_TYPE_VMB1BL, THING_TYPE_VMB1BLS, THING_TYPE_VMB2BL, THING_TYPE_VMB2BLE));
  53
  54     public VelbusBlindsHandler(Thing thing) {
  55         super(thing, 0);
  56     }
  57
  58     @Override
  59     public void handleCommand(ChannelUID channelUID, Command command) {
  60         VelbusBridgeHandler velbusBridgeHandler = getVelbusBridgeHandler();
  61         if (velbusBridgeHandler == null) {
  62             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
  63             return;
  64         }
  65
  66         if (command instanceof RefreshType) {
  67             VelbusStatusRequestPacket packet = new VelbusStatusRequestPacket(
  68                     getModuleAddress().getChannelIdentifier(channelUID));
  69
  70             byte[] packetBytes = packet.getBytes();
  71             velbusBridgeHandler.sendPacket(packetBytes);
  72         } else if (command instanceof UpDownType) {
  73             UpDownType s = (UpDownType) command;
  74             if (s == UpDownType.UP) {
  75                 byte commandByte = COMMAND_BLIND_UP;
  76
  77                 VelbusBlindUpDownPacket packet = new VelbusBlindUpDownPacket(
  78                         getModuleAddress().getChannelIdentifier(channelUID), commandByte);
  79
  80                 byte[] packetBytes = packet.getBytes();
  81                 velbusBridgeHandler.sendPacket(packetBytes);
  82             } else {
  83                 byte commandByte = COMMAND_BLIND_DOWN;
  84
  85                 VelbusBlindUpDownPacket packet = new VelbusBlindUpDownPacket(
  86                         getModuleAddress().getChannelIdentifier(channelUID), commandByte);
  87
  88                 byte[] packetBytes = packet.getBytes();
  89                 velbusBridgeHandler.sendPacket(packetBytes);
  90             }
  91         } else if (command instanceof StopMoveType) {
  92             StopMoveType s = (StopMoveType) command;
  93             if (s == StopMoveType.STOP) {
  94                 VelbusBlindOffPacket packet = new VelbusBlindOffPacket(
  95                         getModuleAddress().getChannelIdentifier(channelUID));
  96
  97                 byte[] packetBytes = packet.getBytes();
  98                 velbusBridgeHandler.sendPacket(packetBytes);
  99             }
 100         } else if (command instanceof PercentType) {
 101             VelbusBlindPositionPacket packet = new VelbusBlindPositionPacket(
 102                     getModuleAddress().getChannelIdentifier(channelUID), ((PercentType) command).byteValue());
 103
 104             byte[] packetBytes = packet.getBytes();
 105             velbusBridgeHandler.sendPacket(packetBytes);
 106         } else {
 107             logger.debug("The command '{}' is not supported by this handler.", command.getClass());
 108         }
 109     }
 110
 111     @Override
 112     protected @Nullable VelbusModuleAddress createVelbusModuleAddress(int numberOfSubAddresses) {
 113         final VelbusThingConfig velbusThingConfig = this.velbusThingConfig;
 114         if (velbusThingConfig != null) {
 115             byte address = hexToByte(velbusThingConfig.address);
 116
 117             if (isFirstGenerationDevice()) {
 118                 return new VelbusFirstGenerationDeviceModuleAddress(address);
 119             }
 120
 121             return new VelbusModuleAddress(address, numberOfSubAddresses);
 122         }
 123
 124         return null;
 125     }
 126
 127     private Boolean isFirstGenerationDevice() {
 128         ThingTypeUID thingTypeUID = this.getThing().getThingTypeUID();
 129         return thingTypeUID.equals(THING_TYPE_VMB1BL) || thingTypeUID.equals(THING_TYPE_VMB2BL);
 130     }
 131
 132     @Override
 133     public void onPacketReceived(byte[] packet) {
 134         logger.trace("onPacketReceived() was called");
 135
 136         if (packet[0] == VelbusPacket.STX && packet.length >= 5) {
 137             byte command = packet[4];
 138
 139             if (command == COMMAND_BLIND_STATUS && packet.length >= 9) {
 140                 byte address = packet[2];
 141                 byte channel = packet[5];
 142                 byte blindPosition = packet[9];
 143
 144                 VelbusChannelIdentifier velbusChannelIdentifier = new VelbusChannelIdentifier(address, channel);
 145                 PercentType state = new PercentType(blindPosition);
 146                 updateState(getModuleAddress().getChannelId(velbusChannelIdentifier), state);
 147             }
 148         }
 149     }
 150 }