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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.wundergroundupdatereceiver.internal;
  14
  15 import static org.openhab.binding.wundergroundupdatereceiver.internal.WundergroundUpdateReceiverBindingConstants.THING_TYPE_UPDATE_RECEIVER;
  16 import static org.openhab.binding.wundergroundupdatereceiver.internal.WundergroundUpdateReceiverBindingConstants.UNCATEGORIZED;
  17
  18 import java.util.Collection;
  19 import java.util.List;
  20 import java.util.Locale;
  21 import java.util.Map;
  22 import java.util.concurrent.ConcurrentHashMap;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.core.library.CoreItemFactory;
  27 import org.openhab.core.thing.type.AutoUpdatePolicy;
  28 import org.openhab.core.thing.type.ChannelType;
  29 import org.openhab.core.thing.type.ChannelTypeBuilder;
  30 import org.openhab.core.thing.type.ChannelTypeProvider;
  31 import org.openhab.core.thing.type.ChannelTypeUID;
  32 import org.osgi.service.component.annotations.Component;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 /**
  37  * @author Daniel Demus - Initial contribution
  38  */
  39 @Component(service = { ChannelTypeProvider.class, WundergroundUpdateReceiverUnknownChannelTypeProvider.class })
  40 @NonNullByDefault
  41 public class WundergroundUpdateReceiverUnknownChannelTypeProvider implements ChannelTypeProvider {
  42
  43     private static final List<String> BOOLEAN_STRINGS = List.of("1", "0", "true", "false", "yes", "no", "on", "off");
  44     private final Map<ChannelTypeUID, ChannelType> channelTypes = new ConcurrentHashMap<>();
  45     private final Logger logger = LoggerFactory.getLogger(WundergroundUpdateReceiverUnknownChannelTypeProvider.class);
  46
  47     @Override
  48     public Collection<ChannelType> getChannelTypes(@Nullable Locale locale) {
  49         return channelTypes.values();
  50     }
  51
  52     @Override
  53     public @Nullable ChannelType getChannelType(ChannelTypeUID channelTypeUID, @Nullable Locale locale) {
  54         return channelTypes.get(channelTypeUID);
  55     }
  56
  57     public ChannelType getOrCreateChannelType(String parameterName, String value) {
  58         ChannelTypeUID typeUid = new ChannelTypeUID(THING_TYPE_UPDATE_RECEIVER.getBindingId(), parameterName);
  59         @Nullable
  60         ChannelType type = getChannelType(typeUid, null);
  61         if (type == null) {
  62             String itemType = guessItemType(value);
  63             type = ChannelTypeBuilder.state(typeUid, parameterName + " channel type", itemType).isAdvanced(true)
  64                     .withCategory(UNCATEGORIZED).withAutoUpdatePolicy(AutoUpdatePolicy.DEFAULT).build();
  65             return addChannelType(typeUid, type);
  66         }
  67         return type;
  68     }
  69
  70     private static String guessItemType(String value) {
  71         if (BOOLEAN_STRINGS.contains(value.toLowerCase())) {
  72             return CoreItemFactory.SWITCH;
  73         }
  74         try {
  75             Float.valueOf(value);
  76             return CoreItemFactory.NUMBER;
  77         } catch (NumberFormatException ignored) {
  78         }
  79         return CoreItemFactory.STRING;
  80     }
  81
  82     private ChannelType addChannelType(ChannelTypeUID channelTypeUID, ChannelType channelType) {
  83         logger.warn("Adding new synthetic channelType {} for unrecognised parameter", channelTypeUID.getAsString());
  84         this.channelTypes.put(channelTypeUID, channelType);
  85         return channelType;
  86     }
  87 }