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   1 /**
   2  * Copyright (c) 2010-2022 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.hdpowerview.internal.builders;
  14
  15 import java.util.List;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.eclipse.jdt.annotation.Nullable;
  19 import org.openhab.binding.hdpowerview.internal.HDPowerViewBindingConstants;
  20 import org.openhab.binding.hdpowerview.internal.HDPowerViewTranslationProvider;
  21 import org.openhab.binding.hdpowerview.internal.api.responses.SceneCollections.SceneCollection;
  22 import org.openhab.core.library.CoreItemFactory;
  23 import org.openhab.core.thing.Channel;
  24 import org.openhab.core.thing.ChannelGroupUID;
  25 import org.openhab.core.thing.ChannelUID;
  26 import org.openhab.core.thing.binding.builder.ChannelBuilder;
  27
  28 /**
  29  * The {@link SceneGroupChannelBuilder} class creates scene group channels
  30  * from structured scene collection data.
  31  *
  32  * @author Jacob Laursen - Initial contribution
  33  */
  34 @NonNullByDefault
  35 public class SceneGroupChannelBuilder extends BaseChannelBuilder {
  36
  37     @Nullable
  38     private List<SceneCollection> sceneCollections;
  39
  40     private SceneGroupChannelBuilder(HDPowerViewTranslationProvider translationProvider,
  41             ChannelGroupUID channelGroupUid) {
  42         super(translationProvider, channelGroupUid, HDPowerViewBindingConstants.CHANNELTYPE_SCENE_GROUP_ACTIVATE);
  43     }
  44
  45     /**
  46      * Creates a {@link SceneGroupChannelBuilder} for the given {@link HDPowerViewTranslationProvider} and
  47      * {@link ChannelGroupUID}.
  48      *
  49      * @param translationProvider the {@link HDPowerViewTranslationProvider}
  50      * @param channelGroupUid parent {@link ChannelGroupUID} for created channels
  51      * @return channel builder
  52      */
  53     public static SceneGroupChannelBuilder create(HDPowerViewTranslationProvider translationProvider,
  54             ChannelGroupUID channelGroupUid) {
  55         return new SceneGroupChannelBuilder(translationProvider, channelGroupUid);
  56     }
  57
  58     /**
  59      * Adds created channels to existing list.
  60      *
  61      * @param channels list that channels will be added to
  62      * @return channel builder
  63      */
  64     public SceneGroupChannelBuilder withChannels(List<Channel> channels) {
  65         this.channels = channels;
  66         return this;
  67     }
  68
  69     /**
  70      * Sets the scene collections.
  71      *
  72      * @param sceneCollections the scene collections
  73      * @return channel builder
  74      */
  75     public SceneGroupChannelBuilder withSceneCollections(List<SceneCollection> sceneCollections) {
  76         this.sceneCollections = sceneCollections;
  77         return this;
  78     }
  79
  80     /**
  81      * Builds and returns the channels.
  82      *
  83      * @return the {@link Channel} list
  84      */
  85     public List<Channel> build() {
  86         List<SceneCollection> sceneCollections = this.sceneCollections;
  87         if (sceneCollections == null) {
  88             return getChannelList(0);
  89         }
  90         List<Channel> channels = getChannelList(sceneCollections.size());
  91         sceneCollections.stream().sorted().forEach(sceneCollection -> channels.add(createChannel(sceneCollection)));
  92         return channels;
  93     }
  94
  95     private Channel createChannel(SceneCollection sceneCollection) {
  96         ChannelUID channelUid = new ChannelUID(channelGroupUid, Integer.toString(sceneCollection.id));
  97         String description = translationProvider.getText("dynamic-channel.scene-group-activate.description",
  98                 sceneCollection.getName());
  99         return ChannelBuilder.create(channelUid, CoreItemFactory.SWITCH).withType(channelTypeUid)
 100                 .withLabel(sceneCollection.getName()).withDescription(description).build();
 101     }
 102 }