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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 upDownCommand) {
  73             if (upDownCommand == UpDownType.UP) {
  74                 byte commandByte = COMMAND_BLIND_UP;
  75
  76                 VelbusBlindUpDownPacket packet = new VelbusBlindUpDownPacket(
  77                         getModuleAddress().getChannelIdentifier(channelUID), commandByte);
  78
  79                 byte[] packetBytes = packet.getBytes();
  80                 velbusBridgeHandler.sendPacket(packetBytes);
  81             } else {
  82                 byte commandByte = COMMAND_BLIND_DOWN;
  83
  84                 VelbusBlindUpDownPacket packet = new VelbusBlindUpDownPacket(
  85                         getModuleAddress().getChannelIdentifier(channelUID), commandByte);
  86
  87                 byte[] packetBytes = packet.getBytes();
  88                 velbusBridgeHandler.sendPacket(packetBytes);
  89             }
  90         } else if (command instanceof StopMoveType stopMoveCommand) {
  91             if (stopMoveCommand == StopMoveType.STOP) {
  92                 VelbusBlindOffPacket packet = new VelbusBlindOffPacket(
  93                         getModuleAddress().getChannelIdentifier(channelUID));
  94
  95                 byte[] packetBytes = packet.getBytes();
  96                 velbusBridgeHandler.sendPacket(packetBytes);
  97             }
  98         } else if (command instanceof PercentType percentCommand) {
  99             VelbusBlindPositionPacket packet = new VelbusBlindPositionPacket(
 100                     getModuleAddress().getChannelIdentifier(channelUID), percentCommand.byteValue());
 101
 102             byte[] packetBytes = packet.getBytes();
 103             velbusBridgeHandler.sendPacket(packetBytes);
 104         } else {
 105             logger.debug("The command '{}' is not supported by this handler.", command.getClass());
 106         }
 107     }
 108
 109     @Override
 110     protected @Nullable VelbusModuleAddress createVelbusModuleAddress(int numberOfSubAddresses) {
 111         final VelbusThingConfig velbusThingConfig = this.velbusThingConfig;
 112         if (velbusThingConfig != null) {
 113             byte address = hexToByte(velbusThingConfig.address);
 114
 115             if (isFirstGenerationDevice()) {
 116                 return new VelbusFirstGenerationDeviceModuleAddress(address);
 117             }
 118
 119             return new VelbusModuleAddress(address, numberOfSubAddresses);
 120         }
 121
 122         return null;
 123     }
 124
 125     private Boolean isFirstGenerationDevice() {
 126         ThingTypeUID thingTypeUID = this.getThing().getThingTypeUID();
 127         return thingTypeUID.equals(THING_TYPE_VMB1BL) || thingTypeUID.equals(THING_TYPE_VMB2BL);
 128     }
 129
 130     @Override
 131     public void onPacketReceived(byte[] packet) {
 132         logger.trace("onPacketReceived() was called");
 133
 134         if (packet[0] == VelbusPacket.STX && packet.length >= 5) {
 135             byte command = packet[4];
 136
 137             if (command == COMMAND_BLIND_STATUS && packet.length >= 9) {
 138                 byte address = packet[2];
 139                 byte channel = packet[5];
 140                 byte blindPosition = packet[9];
 141
 142                 VelbusChannelIdentifier velbusChannelIdentifier = new VelbusChannelIdentifier(address, channel);
 143                 PercentType state = new PercentType(blindPosition);
 144                 updateState(getModuleAddress().getChannelId(velbusChannelIdentifier), state);
 145             }
 146         }
 147     }
 148 }