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   1 /**
   2  * Copyright (c) 2010-2020 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.amazonechocontrol.internal.smarthome;
  14
  15 import java.io.IOException;
  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
  22 import org.eclipse.jdt.annotation.NonNullByDefault;
  23 import org.eclipse.jdt.annotation.Nullable;
  24 import org.openhab.binding.amazonechocontrol.internal.Connection;
  25 import org.openhab.binding.amazonechocontrol.internal.handler.SmartHomeDeviceHandler;
  26 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.Properties;
  27 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.Property;
  28 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeCapabilities.SmartHomeCapability;
  29 import org.openhab.binding.amazonechocontrol.internal.jsons.JsonSmartHomeDevices.SmartHomeDevice;
  30 import org.openhab.core.thing.type.ChannelTypeUID;
  31 import org.openhab.core.types.Command;
  32 import org.openhab.core.types.State;
  33 import org.openhab.core.types.StateDescription;
  34
  35 import com.google.gson.JsonObject;
  36
  37 /**
  38  * @author Michael Geramb - Initial contribution
  39  */
  40 @NonNullByDefault
  41 public abstract class HandlerBase {
  42     protected @Nullable SmartHomeDeviceHandler smartHomeDeviceHandler;
  43     protected Map<String, ChannelInfo> channels = new HashMap<>();
  44
  45     protected abstract ChannelInfo @Nullable [] findChannelInfos(SmartHomeCapability capability, String property);
  46
  47     public abstract void updateChannels(String interfaceName, List<JsonObject> stateList, UpdateChannelResult result);
  48
  49     public abstract boolean handleCommand(Connection connection, SmartHomeDevice shd, String entityId,
  50             SmartHomeCapability[] capabilties, String channelId, Command command) throws IOException;
  51
  52     public abstract @Nullable StateDescription findStateDescription(String channelId,
  53             StateDescription originalStateDescription, @Nullable Locale locale);
  54
  55     public boolean hasChannel(String channelId) {
  56         return channels.containsKey(channelId);
  57     }
  58
  59     public abstract String[] getSupportedInterface();
  60
  61     SmartHomeDeviceHandler getSmartHomeDeviceHandler() throws IllegalStateException {
  62         SmartHomeDeviceHandler smartHomeDeviceHandler = this.smartHomeDeviceHandler;
  63         if (smartHomeDeviceHandler == null) {
  64             throw new IllegalStateException("Handler not initialized");
  65         }
  66         return smartHomeDeviceHandler;
  67     }
  68
  69     public Collection<ChannelInfo> initialize(SmartHomeDeviceHandler smartHomeDeviceHandler,
  70             List<SmartHomeCapability> capabilities) {
  71         this.smartHomeDeviceHandler = smartHomeDeviceHandler;
  72         Map<String, ChannelInfo> channels = new HashMap<>();
  73         for (SmartHomeCapability capability : capabilities) {
  74             Properties properties = capability.properties;
  75             if (properties != null) {
  76                 Property @Nullable [] supported = properties.supported;
  77                 if (supported != null) {
  78                     for (Property property : supported) {
  79                         if (property != null) {
  80                             String name = property.name;
  81                             if (name != null) {
  82                                 ChannelInfo[] channelInfos = findChannelInfos(capability, name);
  83                                 if (channelInfos != null) {
  84                                     for (ChannelInfo channelInfo : channelInfos) {
  85                                         if (channelInfo != null) {
  86                                             channels.put(channelInfo.channelId, channelInfo);
  87                                         }
  88                                     }
  89                                 }
  90                             }
  91                         }
  92                     }
  93                 }
  94             }
  95         }
  96         this.channels = channels;
  97         return channels.values();
  98     }
  99
 100     protected boolean containsCapabilityProperty(SmartHomeCapability[] capabilties, String propertyName) {
 101         for (SmartHomeCapability capability : capabilties) {
 102             Properties properties = capability.properties;
 103             if (properties != null) {
 104                 Property @Nullable [] supportedProperties = properties.supported;
 105                 if (supportedProperties != null) {
 106                     for (Property property : supportedProperties) {
 107                         if (property != null) {
 108                             if (propertyName != null && propertyName.equals(property.name)) {
 109                                 return true;
 110                             }
 111                         }
 112                     }
 113                 }
 114             }
 115         }
 116         return false;
 117     }
 118
 119     public void updateState(String channelId, State state) {
 120         getSmartHomeDeviceHandler().updateState(channelId, state);
 121     }
 122
 123     public static class ChannelInfo {
 124         public final String propertyName;
 125         public final String channelId;
 126         public final String itemType;
 127         public ChannelTypeUID channelTypeUID;
 128
 129         public ChannelInfo(String propertyName, String channelId, ChannelTypeUID channelTypeUID, String itemType) {
 130             this.propertyName = propertyName;
 131             this.channelId = channelId;
 132             this.itemType = itemType;
 133             this.channelTypeUID = channelTypeUID;
 134         }
 135     }
 136
 137     public static class UpdateChannelResult {
 138         public boolean needSingleUpdate;
 139     }
 140 }