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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.orvibo.internal.handler;
  14
  15 import static org.openhab.binding.orvibo.internal.OrviboBindingConstants.CHANNEL_S20_SWITCH;
  16
  17 import java.net.SocketException;
  18 import java.util.concurrent.ScheduledFuture;
  19 import java.util.concurrent.TimeUnit;
  20
  21 import org.openhab.core.library.types.OnOffType;
  22 import org.openhab.core.thing.ChannelUID;
  23 import org.openhab.core.thing.Thing;
  24 import org.openhab.core.thing.ThingStatus;
  25 import org.openhab.core.thing.binding.BaseThingHandler;
  26 import org.openhab.core.types.Command;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 import com.github.tavalin.s20.S20Client;
  31 import com.github.tavalin.s20.Socket;
  32 import com.github.tavalin.s20.Socket.SocketStateListener;
  33 import com.github.tavalin.s20.entities.Types.PowerState;
  34
  35 /**
  36  * The {@link S20Handler} is responsible for handling commands, which are
  37  * sent to one of the channels.
  38  *
  39  * @author Daniel Walters - Initial contribution
  40  */
  41 public class S20Handler extends BaseThingHandler implements SocketStateListener {
  42
  43     private final Logger logger = LoggerFactory.getLogger(S20Handler.class);
  44     private Socket socket;
  45     private S20Client client;
  46     private ScheduledFuture<?> subscribeHandler;
  47     private long refreshInterval = 15;
  48     private Runnable subscribeTask = () -> {
  49         if (socket != null) {
  50             socket.subscribe();
  51         }
  52     };
  53
  54     public S20Handler(Thing thing) {
  55         super(thing);
  56     }
  57
  58     @Override
  59     public void initialize() {
  60         configure();
  61     }
  62
  63     @Override
  64     public void dispose() {
  65         subscribeHandler.cancel(true);
  66         socket.removeSocketStateListener(this);
  67     }
  68
  69     @Override
  70     public void handleCommand(ChannelUID channelUID, Command command) {
  71         if (channelUID.getId().equals(CHANNEL_S20_SWITCH)) {
  72             try {
  73                 if (command == OnOffType.ON) {
  74                     socket.on();
  75                 } else if (command == OnOffType.OFF) {
  76                     socket.off();
  77                 }
  78             } catch (SocketException e) {
  79                 logger.error("Error issuing command {} to socket {}", command, channelUID.getId());
  80             }
  81         }
  82     }
  83
  84     private void configure() {
  85         try {
  86             client = S20Client.getInstance();
  87             String deviceId = thing.getUID().getId();
  88             socket = client.socketWithDeviceId(deviceId);
  89             socket.addSocketStateListener(this);
  90             socket.findOnNetwork();
  91             subscribeHandler = scheduler.scheduleWithFixedDelay(subscribeTask, 0, refreshInterval, TimeUnit.SECONDS);
  92             updateStatus(ThingStatus.ONLINE);
  93         } catch (SocketException ex) {
  94             logger.error("Error occurred while initializing S20 handler: {}", ex.getMessage(), ex);
  95         }
  96     }
  97
  98     @Override
  99     public void socketDidChangeLabel(Socket socket, String label) {
 100         if (label != null && !label.isBlank()) {
 101             logger.debug("Updating thing label to {}", label);
 102             thing.setLabel(label);
 103         }
 104     }
 105
 106     @Override
 107     public void socketDidChangePowerState(Socket socket, PowerState state) {
 108         logger.debug("Received power state: {}", state);
 109         if (socket.getDeviceId().equals(thing.getUID().getId())) {
 110             if (state == PowerState.ON) {
 111                 updateState(CHANNEL_S20_SWITCH, OnOffType.ON);
 112             } else if (state == PowerState.OFF) {
 113                 updateState(CHANNEL_S20_SWITCH, OnOffType.OFF);
 114             }
 115         }
 116     }
 117
 118     @Override
 119     public void socketDidInitialisation(Socket socket) {
 120         if (thing.getStatus() != ThingStatus.ONLINE) {
 121             updateStatus(ThingStatus.ONLINE);
 122         }
 123     }
 124 }