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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.hdpowerview.internal.builders;
  14
  15 import java.util.ArrayList;
  16 import java.util.List;
  17
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.eclipse.jdt.annotation.Nullable;
  20 import org.openhab.binding.hdpowerview.internal.HDPowerViewBindingConstants;
  21 import org.openhab.binding.hdpowerview.internal.HDPowerViewTranslationProvider;
  22 import org.openhab.core.thing.Channel;
  23 import org.openhab.core.thing.ChannelGroupUID;
  24 import org.openhab.core.thing.type.ChannelTypeUID;
  25
  26 /**
  27  * The {@link BaseChannelBuilder} class is super class for
  28  * channel builders.
  29  *
  30  * @author Jacob Laursen - Initial contribution
  31  */
  32 @NonNullByDefault
  33 public class BaseChannelBuilder {
  34
  35     protected final HDPowerViewTranslationProvider translationProvider;
  36     protected final ChannelGroupUID channelGroupUid;
  37     protected final ChannelTypeUID channelTypeUid;
  38
  39     @Nullable
  40     protected List<Channel> channels;
  41
  42     protected BaseChannelBuilder(HDPowerViewTranslationProvider translationProvider, ChannelGroupUID channelGroupUid,
  43             String channelTypeId) {
  44         this.translationProvider = translationProvider;
  45         this.channelGroupUid = channelGroupUid;
  46         this.channelTypeUid = new ChannelTypeUID(HDPowerViewBindingConstants.BINDING_ID, channelTypeId);
  47     }
  48
  49     protected List<Channel> getChannelList(int initialCapacity) {
  50         List<Channel> channels = this.channels;
  51         return channels != null ? channels : new ArrayList<>(initialCapacity);
  52     }
  53 }