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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.homematic.internal.type;
  14
  15 import java.util.ArrayList;
  16 import java.util.Collection;
  17 import java.util.HashMap;
  18 import java.util.List;
  19 import java.util.Locale;
  20 import java.util.Map;
  21 import java.util.concurrent.CopyOnWriteArrayList;
  22
  23 import org.openhab.binding.homematic.type.HomematicThingTypeExcluder;
  24 import org.openhab.core.thing.type.ChannelType;
  25 import org.openhab.core.thing.type.ChannelTypeProvider;
  26 import org.openhab.core.thing.type.ChannelTypeUID;
  27 import org.osgi.service.component.annotations.Component;
  28 import org.osgi.service.component.annotations.Reference;
  29 import org.osgi.service.component.annotations.ReferenceCardinality;
  30 import org.osgi.service.component.annotations.ReferencePolicy;
  31
  32 /**
  33  * Provides all ChannelTypes from all Homematic bridges.
  34  *
  35  * @author Gerhard Riegler - Initial contribution
  36  * @author Michael Reitler - Added HomematicThingTypeExcluder
  37  */
  38 @Component(service = { HomematicChannelTypeProvider.class, ChannelTypeProvider.class })
  39 public class HomematicChannelTypeProviderImpl implements HomematicChannelTypeProvider {
  40     private final Map<ChannelTypeUID, ChannelType> channelTypesByUID = new HashMap<>();
  41     protected List<HomematicThingTypeExcluder> homematicThingTypeExcluders = new CopyOnWriteArrayList<>();
  42
  43     @Reference(cardinality = ReferenceCardinality.MULTIPLE, policy = ReferencePolicy.DYNAMIC)
  44     protected void addHomematicThingTypeExcluder(HomematicThingTypeExcluder homematicThingTypeExcluder) {
  45         if (homematicThingTypeExcluders != null) {
  46             homematicThingTypeExcluders.add(homematicThingTypeExcluder);
  47         }
  48     }
  49
  50     protected void removeHomematicThingTypeExcluder(HomematicThingTypeExcluder homematicThingTypeExcluder) {
  51         if (homematicThingTypeExcluders != null) {
  52             homematicThingTypeExcluders.remove(homematicThingTypeExcluder);
  53         }
  54     }
  55
  56     private boolean isChannelTypeExcluded(ChannelTypeUID channelTypeUID) {
  57         // delegate to excluders
  58         for (HomematicThingTypeExcluder excluder : homematicThingTypeExcluders) {
  59             if (excluder.isChannelTypeExcluded(channelTypeUID)) {
  60                 return true;
  61             }
  62         }
  63         return false;
  64     }
  65
  66     @Override
  67     public Collection<ChannelType> getChannelTypes(Locale locale) {
  68         Collection<ChannelType> result = new ArrayList<>();
  69         for (ChannelTypeUID uid : channelTypesByUID.keySet()) {
  70             if (!isChannelTypeExcluded(uid)) {
  71                 result.add(channelTypesByUID.get(uid));
  72             }
  73         }
  74         return result;
  75     }
  76
  77     @Override
  78     public ChannelType getChannelType(ChannelTypeUID channelTypeUID, Locale locale) {
  79         return isChannelTypeExcluded(channelTypeUID) ? null : channelTypesByUID.get(channelTypeUID);
  80     }
  81
  82     @Override
  83     public ChannelType getInternalChannelType(ChannelTypeUID channelTypeUID) {
  84         return channelTypesByUID.get(channelTypeUID);
  85     }
  86
  87     @Override
  88     public void addChannelType(ChannelType channelType) {
  89         channelTypesByUID.put(channelType.getUID(), channelType);
  90     }
  91 }