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   1 /**
   2  * Copyright (c) 2010-2024 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.pentair.internal.handler;
  14
  15 import static org.openhab.binding.pentair.internal.PentairBindingConstants.*;
  16
  17 import org.openhab.binding.pentair.internal.PentairBindingConstants;
  18 import org.openhab.binding.pentair.internal.PentairPacket;
  19 import org.openhab.binding.pentair.internal.PentairPacketIntellichlor;
  20 import org.openhab.core.library.types.DecimalType;
  21 import org.openhab.core.thing.ChannelUID;
  22 import org.openhab.core.thing.Thing;
  23 import org.openhab.core.thing.ThingStatus;
  24 import org.openhab.core.types.Command;
  25 import org.openhab.core.types.RefreshType;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * The {@link PentairIntelliChlorHandler} is responsible for implementation of the Intellichlor Salt generator. It will
  31  * process
  32  * Intellichlor commands and set the appropriate channel states. There are currently no commands implemented for this
  33  * Thing to receive from the framework.
  34  *
  35  * @author Jeff James - Initial contribution
  36  */
  37 public class PentairIntelliChlorHandler extends PentairBaseThingHandler {
  38     private final Logger logger = LoggerFactory.getLogger(PentairIntelliChlorHandler.class);
  39
  40     protected PentairPacketIntellichlor pic3cur = new PentairPacketIntellichlor();
  41     protected PentairPacketIntellichlor pic4cur = new PentairPacketIntellichlor();
  42
  43     public PentairIntelliChlorHandler(Thing thing) {
  44         super(thing);
  45     }
  46
  47     @Override
  48     public void initialize() {
  49         logger.debug("Initializing IntelliChlor - Thing ID: {}.", this.getThing().getUID());
  50
  51         id = 0; // Intellichlor doesn't have ID
  52
  53         updateStatus(ThingStatus.ONLINE);
  54     }
  55
  56     @Override
  57     public void dispose() {
  58         logger.debug("Thing {} disposed.", getThing().getUID());
  59     }
  60
  61     @Override
  62     public void handleCommand(ChannelUID channelUID, Command command) {
  63         if (command instanceof RefreshType) {
  64             logger.debug("IntelliChlor received refresh command");
  65             updateChannel(channelUID.getId(), null);
  66         }
  67     }
  68
  69     @Override
  70     public void processPacketFrom(PentairPacket p) {
  71         PentairPacketIntellichlor pic = (PentairPacketIntellichlor) p;
  72
  73         switch (pic.getLength()) {
  74             case 3:
  75                 if (pic.getCmd() != 0x11) { // only packets with 0x11 have valid saltoutput numbers.
  76                     break;
  77                 }
  78
  79                 PentairPacketIntellichlor pic3Old = pic3cur;
  80                 pic3cur = pic;
  81
  82                 updateChannel(INTELLICHLOR_SALTOUTPUT, pic3Old);
  83
  84                 break;
  85             case 4:
  86                 if (pic.getCmd() != 0x12) {
  87                     break;
  88                 }
  89
  90                 PentairPacketIntellichlor pic4Old = pic4cur;
  91                 pic4cur = pic;
  92
  93                 updateChannel(INTELLICHLOR_SALINITY, pic4Old);
  94
  95                 break;
  96         }
  97
  98         logger.debug("Intellichlor command: {}", pic);
  99     }
 100
 101     /**
 102      * Helper function to compare and update channel if needed. The class variables p29_cur and phsp_cur are used to
 103      * determine the appropriate state of the channel.
 104      *
 105      * @param channel name of channel to be updated, corresponds to channel name in {@link PentairBindingConstants}
 106      * @param p Packet representing the former state. If null, no compare is done and state is updated.
 107      */
 108     public void updateChannel(String channel, PentairPacket p) {
 109         PentairPacketIntellichlor pic = (PentairPacketIntellichlor) p;
 110
 111         switch (channel) {
 112             case INTELLICHLOR_SALINITY:
 113                 if (pic == null || (pic.salinity != pic4cur.salinity)) {
 114                     updateState(channel, new DecimalType(pic4cur.salinity));
 115                 }
 116                 break;
 117             case INTELLICHLOR_SALTOUTPUT:
 118                 if (pic == null || (pic.saltoutput != pic3cur.saltoutput)) {
 119                     updateState(channel, new DecimalType(pic3cur.saltoutput));
 120                 }
 121                 break;
 122         }
 123     }
 124 }