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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.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.LutronCommandType;
  23 import org.openhab.core.library.types.DecimalType;
  24 import org.openhab.core.thing.Bridge;
  25 import org.openhab.core.thing.ChannelUID;
  26 import org.openhab.core.thing.Thing;
  27 import org.openhab.core.thing.ThingStatus;
  28 import org.openhab.core.thing.ThingStatusDetail;
  29 import org.openhab.core.types.Command;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 /**
  34  * Handler responsible for getting/setting sysvar state for HomeWorks QS
  35  *
  36  * @author Bob Adair - Initial contribution
  37  *
  38  */
  39 @NonNullByDefault
  40 public class SysvarHandler extends LutronHandler {
  41     private static final Integer ACTION_GETSETSYSVAR = 1;
  42
  43     private final Logger logger = LoggerFactory.getLogger(SysvarHandler.class);
  44
  45     private @Nullable SysvarConfig config;
  46     private int integrationId;
  47
  48     public SysvarHandler(Thing thing) {
  49         super(thing);
  50     }
  51
  52     @Override
  53     public int getIntegrationId() {
  54         SysvarConfig config = this.config;
  55         if (config != null) {
  56             return config.integrationId;
  57         } else {
  58             throw new IllegalStateException("handler not initialized");
  59         }
  60     }
  61
  62     @Override
  63     public void initialize() {
  64         SysvarConfig config = getThing().getConfiguration().as(SysvarConfig.class);
  65         this.config = config;
  66         if (config.integrationId <= 0) {
  67             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "No integrationId configured");
  68         } else {
  69             integrationId = config.integrationId;
  70             logger.debug("Initializing Sysvar handler for integration ID {}", integrationId);
  71             initDeviceState();
  72         }
  73     }
  74
  75     @Override
  76     protected void initDeviceState() {
  77         logger.debug("Initializing handler state for sysvar id {}", integrationId);
  78         Bridge bridge = getBridge();
  79         if (bridge == null) {
  80             updateStatus(ThingStatus.OFFLINE, ThingStatusDetail.CONFIGURATION_ERROR, "No bridge configured");
  81         } else if (bridge.getStatus() == ThingStatus.ONLINE) {
  82             updateStatus(ThingStatus.UNKNOWN, ThingStatusDetail.NONE, "Awaiting initial response");
  83             querySysvar(ACTION_GETSETSYSVAR); // 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(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(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                 && 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 }