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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.heos.internal.handler;
  14
  15 import java.io.IOException;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.heos.internal.exception.HeosNotFoundException;
  20 import org.openhab.binding.heos.internal.resources.HeosEventListener;
  21 import org.openhab.binding.heos.internal.resources.Telnet.ReadException;
  22 import org.openhab.core.library.types.IncreaseDecreaseType;
  23 import org.openhab.core.thing.ThingUID;
  24 import org.openhab.core.types.Command;
  25 import org.openhab.core.types.RefreshType;
  26
  27 /**
  28  * The {@link HeosChannelHandlerVolume} handles the Volume channel command
  29  * from the implementing thing.
  30  *
  31  * @author Johannes Einig - Initial contribution
  32  */
  33 @NonNullByDefault
  34 public class HeosChannelHandlerVolume extends BaseHeosChannelHandler {
  35     private final HeosEventListener eventListener;
  36
  37     public HeosChannelHandlerVolume(HeosEventListener eventListener, HeosBridgeHandler bridge) {
  38         super(bridge);
  39         this.eventListener = eventListener;
  40     }
  41
  42     @Override
  43     public void handlePlayerCommand(Command command, String id, ThingUID uid) throws IOException, ReadException {
  44         if (command instanceof RefreshType) {
  45             eventListener.playerStateChangeEvent(getApi().getPlayerVolume(id));
  46             return;
  47         }
  48         if (command instanceof IncreaseDecreaseType) {
  49             if (IncreaseDecreaseType.INCREASE == command) {
  50                 getApi().increaseVolume(id);
  51             } else {
  52                 getApi().decreaseVolume(id);
  53             }
  54         } else {
  55             getApi().setVolume(command.toString(), id);
  56         }
  57     }
  58
  59     @Override
  60     public void handleGroupCommand(Command command, @Nullable String id, ThingUID uid,
  61             HeosGroupHandler heosGroupHandler) throws IOException, ReadException {
  62         if (id == null) {
  63             throw new HeosNotFoundException();
  64         }
  65
  66         if (command instanceof RefreshType) {
  67             eventListener.playerStateChangeEvent(getApi().getGroupVolume(id));
  68             return;
  69         }
  70         if (command instanceof IncreaseDecreaseType) {
  71             if (IncreaseDecreaseType.INCREASE == command) {
  72                 getApi().increaseGroupVolume(id);
  73             } else {
  74                 getApi().decreaseGroupVolume(id);
  75             }
  76         } else {
  77             getApi().volumeGroup(command.toString(), id);
  78         }
  79     }
  80
  81     @Override
  82     public void handleBridgeCommand(Command command, ThingUID uid) {
  83         // not used on bridge
  84     }
  85 }