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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.lutron.internal.handler;
  14
  15 import static org.openhab.binding.lutron.internal.LutronBindingConstants.CHANNEL_VARSTATE;
  16
  17 import java.math.BigDecimal;
  18
  19 import org.eclipse.jdt.annotation.NonNullByDefault;
  20 import org.eclipse.jdt.annotation.Nullable;
  21 import org.openhab.binding.lutron.internal.config.SysvarConfig;
  22 import org.openhab.binding.lutron.internal.protocol.SysvarCommand;
  23 import org.openhab.binding.lutron.internal.protocol.lip.LutronCommandType;
  24 import org.openhab.core.library.types.DecimalType;
  25 import org.openhab.core.thing.Bridge;
  26 import org.openhab.core.thing.ChannelUID;
  27 import org.openhab.core.thing.Thing;
  28 import org.openhab.core.thing.ThingStatus;
  29 import org.openhab.core.thing.ThingStatusDetail;
  30 import org.openhab.core.types.Command;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  * Handler responsible for getting/setting sysvar state for HomeWorks QS
  36  *
  37  * @author Bob Adair - Initial contribution
  38  *
  39  */
  40 @NonNullByDefault
  41 public class SysvarHandler extends LutronHandler {
  42     private final Logger logger = LoggerFactory.getLogger(SysvarHandler.class);
  43
  44     private @Nullable SysvarConfig config;
  45     private int integrationId;
  46
  47     public SysvarHandler(Thing thing) {
  48         super(thing);
  49     }
  50
  51     @Override
  52     public int getIntegrationId() {
  53         SysvarConfig config = this.config;
  54         if (config != null) {
  55             return config.integrationId;
  56         } else {
  57             throw new IllegalStateException("handler not initialized");
  58         }
  59     }
  60
  61     @Override
  62     public void initialize() {
  63         SysvarConfig config = getThing().getConfiguration().as(SysvarConfig.class);
  64         this.config = config;
  65         if (config.integrationId <= 0) {
  66             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "No integrationId configured");
  67         } else {
  68             integrationId = config.integrationId;
  69             logger.debug("Initializing Sysvar handler for integration ID {}", integrationId);
  70             initDeviceState();
  71         }
  72     }
  73
  74     @Override
  75     protected void initDeviceState() {
  76         logger.debug("Initializing handler state for sysvar id {}", integrationId);
  77         Bridge bridge = getBridge();
  78         if (bridge == null) {
  79             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "No bridge configured");
  80         } else if (bridge.getStatus() == ThingStatus.ONLINE) {
  81             updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE, "Awaiting initial response");
  82             querySysvar(SysvarCommand.ACTION_GETSETSYSVAR);
  83             // handleUpdate() will set thing status to online when response arrives
  84         } else {
  85             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.BRIDGE_OFFLINE);
  86         }
  87     }
  88
  89     @Override
  90     public void channelLinked(ChannelUID channelUID) {
  91         if (channelUID.getId().equals(CHANNEL_VARSTATE)) {
  92             // Refresh state when new item is linked.
  93             querySysvar(SysvarCommand.ACTION_GETSETSYSVAR);
  94         }
  95     }
  96
  97     @Override
  98     public void handleCommand(ChannelUID channelUID, Command command) {
  99         if (channelUID.getId().equals(CHANNEL_VARSTATE)) {
 100             if (command instanceof Number) {
 101                 int state = ((Number) command).intValue();
 102                 sysvar(SysvarCommand.ACTION_GETSETSYSVAR, state);
 103             }
 104         }
 105     }
 106
 107     @Override
 108     public void handleUpdate(LutronCommandType type, String... parameters) {
 109         if (type == LutronCommandType.SYSVAR && parameters.length > 1
 110                 && SysvarCommand.ACTION_GETSETSYSVAR.toString().equals(parameters[0])) {
 111             BigDecimal state = new BigDecimal(parameters[1]);
 112             if (getThing().getStatus() == ThingStatus.UNKNOWN) {
 113                 updateStatus(ThingStatus.ONLINE);
 114             }
 115             updateState(CHANNEL_VARSTATE, new DecimalType(state));
 116         }
 117     }
 118 }