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   1 /**
   2  * Copyright (c) 2010-2020 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.openhab.binding.velbus.internal.VelbusChannelIdentifier;
  23 import org.openhab.binding.velbus.internal.packets.VelbusFeedbackLEDPacket;
  24 import org.openhab.binding.velbus.internal.packets.VelbusPacket;
  25 import org.openhab.core.library.types.StringType;
  26 import org.openhab.core.thing.ChannelUID;
  27 import org.openhab.core.thing.CommonTriggerEvents;
  28 import org.openhab.core.thing.Thing;
  29 import org.openhab.core.thing.ThingStatus;
  30 import org.openhab.core.thing.ThingStatusDetail;
  31 import org.openhab.core.thing.ThingTypeUID;
  32 import org.openhab.core.types.Command;
  33
  34 /**
  35  * The {@link VelbusSensorHandler} is responsible for handling commands, which are
  36  * sent to one of the channels.
  37  *
  38  * @author Cedric Boon - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public class VelbusSensorHandler extends VelbusThingHandler {
  42     public static final Set<ThingTypeUID> SUPPORTED_THING_TYPES = new HashSet<>(
  43             Arrays.asList(THING_TYPE_VMB6IN, THING_TYPE_VMB8IR, THING_TYPE_VMB8PB));
  44
  45     private static final StringType SET_LED = new StringType("SET_LED");
  46     private static final StringType SLOW_BLINK_LED = new StringType("SLOW_BLINK_LED");
  47     private static final StringType FAST_BLINK_LED = new StringType("FAST_BLINK_LED");
  48     private static final StringType VERY_FAST_BLINK_LED = new StringType("VERY_FAST_BLINK_LED");
  49     private static final StringType CLEAR_LED = new StringType("CLEAR_LED");
  50
  51     public VelbusSensorHandler(Thing thing) {
  52         this(thing, 0);
  53     }
  54
  55     public VelbusSensorHandler(Thing thing, int numberOfSubAddresses) {
  56         super(thing, numberOfSubAddresses);
  57     }
  58
  59     @Override
  60     public void handleCommand(ChannelUID channelUID, Command command) {
  61         VelbusBridgeHandler velbusBridgeHandler = getVelbusBridgeHandler();
  62         if (velbusBridgeHandler == null) {
  63             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
  64             return;
  65         }
  66
  67         if (isFeedbackChannel(channelUID) && command instanceof StringType) {
  68             byte commandByte;
  69
  70             StringType stringTypeCommand = (StringType) command;
  71             if (stringTypeCommand.equals(SET_LED)) {
  72                 commandByte = COMMAND_SET_LED;
  73             } else if (stringTypeCommand.equals(SLOW_BLINK_LED)) {
  74                 commandByte = COMMAND_SLOW_BLINK_LED;
  75             } else if (stringTypeCommand.equals(FAST_BLINK_LED)) {
  76                 commandByte = COMMAND_FAST_BLINK_LED;
  77             } else if (stringTypeCommand.equals(VERY_FAST_BLINK_LED)) {
  78                 commandByte = COMMAND_VERY_FAST_BLINK_LED;
  79             } else if (stringTypeCommand.equals(CLEAR_LED)) {
  80                 commandByte = COMMAND_CLEAR_LED;
  81             } else {
  82                 throw new UnsupportedOperationException(
  83                         "The command '" + command + "' is not supported on channel '" + channelUID + "'.");
  84             }
  85
  86             VelbusFeedbackLEDPacket packet = new VelbusFeedbackLEDPacket(
  87                     getModuleAddress().getChannelIdentifier(channelUID), commandByte);
  88
  89             byte[] packetBytes = packet.getBytes();
  90             velbusBridgeHandler.sendPacket(packetBytes);
  91         }
  92     }
  93
  94     private boolean isFeedbackChannel(ChannelUID channelUID) {
  95         return "feedback".equals(channelUID.getGroupId());
  96     }
  97
  98     @Override
  99     public void onPacketReceived(byte[] packet) {
 100         logger.trace("onPacketReceived() was called");
 101
 102         if (packet[0] == VelbusPacket.STX && packet.length >= 5) {
 103             byte address = packet[2];
 104             byte command = packet[4];
 105
 106             if (command == COMMAND_PUSH_BUTTON_STATUS && packet.length >= 6) {
 107                 byte channelJustPressed = packet[5];
 108                 if (channelJustPressed != 0) {
 109                     VelbusChannelIdentifier velbusChannelIdentifier = new VelbusChannelIdentifier(address,
 110                             channelJustPressed);
 111                     triggerChannel("input#" + getModuleAddress().getChannelId(velbusChannelIdentifier),
 112                             CommonTriggerEvents.PRESSED);
 113                 }
 114
 115                 byte channelJustReleased = packet[6];
 116                 if (channelJustReleased != 0) {
 117                     VelbusChannelIdentifier velbusChannelIdentifier = new VelbusChannelIdentifier(address,
 118                             channelJustReleased);
 119                     triggerChannel("input#" + getModuleAddress().getChannelId(velbusChannelIdentifier),
 120                             CommonTriggerEvents.RELEASED);
 121                 }
 122
 123                 byte channelLongPressed = packet[7];
 124                 if (channelLongPressed != 0) {
 125                     VelbusChannelIdentifier velbusChannelIdentifier = new VelbusChannelIdentifier(address,
 126                             channelLongPressed);
 127                     triggerChannel("input#" + getModuleAddress().getChannelId(velbusChannelIdentifier),
 128                             CommonTriggerEvents.LONG_PRESSED);
 129                 }
 130             }
 131         }
 132     }
 133 }