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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.http.internal.converter;
  14
  15 import java.util.function.Consumer;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.http.internal.config.HttpChannelConfig;
  20 import org.openhab.binding.http.internal.transform.ValueTransformation;
  21 import org.openhab.core.library.types.NextPreviousType;
  22 import org.openhab.core.library.types.PlayPauseType;
  23 import org.openhab.core.library.types.RewindFastforwardType;
  24 import org.openhab.core.types.Command;
  25 import org.openhab.core.types.State;
  26 import org.openhab.core.types.UnDefType;
  27
  28 /**
  29  * The {@link PlayerItemConverter} implements {@link org.openhab.core.library.items.RollershutterItem}
  30  * conversions
  31  *
  32  * @author Jan N. Klug - Initial contribution
  33  */
  34
  35 @NonNullByDefault
  36 public class PlayerItemConverter extends AbstractTransformingItemConverter {
  37     private final HttpChannelConfig channelConfig;
  38     private @Nullable String lastCommand; // store last command to prevent duplicate commands
  39
  40     public PlayerItemConverter(Consumer<State> updateState, Consumer<Command> postCommand,
  41             @Nullable Consumer<String> sendHttpValue, ValueTransformation stateTransformations,
  42             ValueTransformation commandTransformations, HttpChannelConfig channelConfig) {
  43         super(updateState, postCommand, sendHttpValue, stateTransformations, commandTransformations, channelConfig);
  44         this.channelConfig = channelConfig;
  45     }
  46
  47     @Override
  48     public String toString(Command command) {
  49         String string = channelConfig.commandToFixedValue(command);
  50         if (string != null) {
  51             return string;
  52         }
  53
  54         throw new IllegalArgumentException("Command type '" + command.toString() + "' not supported");
  55     }
  56
  57     @Override
  58     protected @Nullable Command toCommand(String string) {
  59         if (string.equals(lastCommand)) {
  60             // only send commands once
  61             return null;
  62         }
  63         lastCommand = string;
  64
  65         if (string.equals(channelConfig.playValue)) {
  66             return PlayPauseType.PLAY;
  67         } else if (string.equals(channelConfig.pauseValue)) {
  68             return PlayPauseType.PAUSE;
  69         } else if (string.equals(channelConfig.nextValue)) {
  70             return NextPreviousType.NEXT;
  71         } else if (string.equals(channelConfig.previousValue)) {
  72             return NextPreviousType.PREVIOUS;
  73         } else if (string.equals(channelConfig.rewindValue)) {
  74             return RewindFastforwardType.REWIND;
  75         } else if (string.equals(channelConfig.fastforwardValue)) {
  76             return RewindFastforwardType.FASTFORWARD;
  77         }
  78
  79         return null;
  80     }
  81
  82     @Override
  83     public State toState(String string) {
  84         if (string.equals(channelConfig.playValue)) {
  85             return PlayPauseType.PLAY;
  86         } else if (string.equals(channelConfig.pauseValue)) {
  87             return PlayPauseType.PAUSE;
  88         } else if (string.equals(channelConfig.rewindValue)) {
  89             return RewindFastforwardType.REWIND;
  90         } else if (string.equals(channelConfig.fastforwardValue)) {
  91             return RewindFastforwardType.FASTFORWARD;
  92         }
  93
  94         return UnDefType.UNDEF;
  95     }
  96 }