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   1 /**
   2  * Copyright (c) 2010-2024 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.enocean.internal.eep.generic;
  14
  15 import static org.openhab.binding.enocean.internal.EnOceanBindingConstants.*;
  16 import static org.openhab.binding.enocean.internal.messages.ESP3Packet.*;
  17
  18 import java.lang.reflect.InvocationTargetException;
  19 import java.util.Collections;
  20 import java.util.LinkedList;
  21 import java.util.List;
  22 import java.util.function.Function;
  23
  24 import org.eclipse.jdt.annotation.NonNullByDefault;
  25 import org.eclipse.jdt.annotation.Nullable;
  26 import org.openhab.binding.enocean.internal.config.EnOceanChannelTransformationConfig;
  27 import org.openhab.binding.enocean.internal.eep.EEP;
  28 import org.openhab.binding.enocean.internal.messages.ERP1Message;
  29 import org.openhab.core.config.core.Configuration;
  30 import org.openhab.core.config.discovery.DiscoveryResultBuilder;
  31 import org.openhab.core.library.types.DateTimeType;
  32 import org.openhab.core.library.types.DecimalType;
  33 import org.openhab.core.library.types.HSBType;
  34 import org.openhab.core.library.types.OnOffType;
  35 import org.openhab.core.library.types.OpenClosedType;
  36 import org.openhab.core.library.types.PercentType;
  37 import org.openhab.core.library.types.PlayPauseType;
  38 import org.openhab.core.library.types.PointType;
  39 import org.openhab.core.library.types.RewindFastforwardType;
  40 import org.openhab.core.library.types.StringListType;
  41 import org.openhab.core.library.types.StringType;
  42 import org.openhab.core.library.types.UpDownType;
  43 import org.openhab.core.transform.actions.Transformation;
  44 import org.openhab.core.types.Command;
  45 import org.openhab.core.types.State;
  46 import org.openhab.core.types.UnDefType;
  47 import org.openhab.core.util.HexUtils;
  48
  49 /**
  50  *
  51  * @author Daniel Weber - Initial contribution
  52  */
  53 @NonNullByDefault
  54 public class GenericEEP extends EEP {
  55
  56     final List<Class<? extends State>> supportedStates = Collections
  57             .unmodifiableList(new LinkedList<Class<? extends State>>() {
  58                 private static final long serialVersionUID = 1L;
  59
  60                 {
  61                     add(DateTimeType.class);
  62                     add(DecimalType.class);
  63                     add(HSBType.class);
  64                     add(OnOffType.class);
  65                     add(OpenClosedType.class);
  66                     add(PercentType.class);
  67                     add(PlayPauseType.class);
  68                     add(PointType.class);
  69                     add(RewindFastforwardType.class);
  70                     add(StringListType.class);
  71                     add(StringType.class);
  72                     add(UpDownType.class);
  73                 }
  74             });
  75
  76     public GenericEEP() {
  77         super();
  78     }
  79
  80     public GenericEEP(ERP1Message packet) {
  81         super(packet);
  82     }
  83
  84     @Override
  85     protected void convertFromCommandImpl(String channelId, String channelTypeId, Command command,
  86             Function<String, State> getCurrentStateFunc, @Nullable Configuration config) {
  87         if (config == null) {
  88             logger.error("Cannot handle command {}, when transformation configuration is null", command.toString());
  89             return;
  90         }
  91         EnOceanChannelTransformationConfig transformationInfo = config.as(EnOceanChannelTransformationConfig.class);
  92
  93         String input = channelId + "|" + command.toString();
  94         String output = Transformation.transform(transformationInfo.transformationType,
  95                 transformationInfo.transformationFunction, input);
  96
  97         if (output != null && !output.isEmpty() && !input.equals(output)) {
  98             try {
  99                 setData(HexUtils.hexToBytes(output));
 100             } catch (IllegalArgumentException e) {
 101                 logger.debug("Command {} could not transformed", command.toString());
 102                 throw e;
 103             }
 104         }
 105     }
 106
 107     @Override
 108     protected State convertToStateImpl(String channelId, String channelTypeId,
 109             Function<String, @Nullable State> getCurrentStateFunc, Configuration config) {
 110         EnOceanChannelTransformationConfig transformationInfo = config.as(EnOceanChannelTransformationConfig.class);
 111
 112         String payload = HexUtils.bytesToHex(bytes);
 113         String input = channelId + "|" + payload;
 114         String output = Transformation.transform(transformationInfo.transformationType,
 115                 transformationInfo.transformationFunction, input);
 116
 117         if (output != null && !output.isEmpty() && !input.equals(output)) {
 118             String[] parts = output.split("\\|");
 119
 120             if (parts.length == 2) {
 121                 @Nullable
 122                 Class<? extends State> state = supportedStates.stream().filter(s -> s.getName().contains(parts[0]))
 123                         .findFirst().orElse(null);
 124
 125                 if (state != null) {
 126                     if (state.isEnum()) {
 127                         State[] states;
 128                         if ((states = state.getEnumConstants()) != null) {
 129                             for (State s : states) {
 130                                 if (s.toString().equalsIgnoreCase(parts[1])) {
 131                                     return s;
 132                                 }
 133                             }
 134                         }
 135                         logger.debug("Could not find value '{}' for state '{}'", parts[1], parts[0]);
 136                     } else {
 137                         try {
 138                             return state.getConstructor(String.class).newInstance(parts[1]);
 139                         } catch (InstantiationException | IllegalAccessException | IllegalArgumentException
 140                                 | InvocationTargetException | NoSuchMethodException | SecurityException e) {
 141                             logger.debug("Could not create state '{}' with value '{}'", parts[0], parts[1]);
 142                         }
 143                     }
 144                 } else {
 145                     logger.debug("State '{}' not found", parts[0]);
 146                 }
 147             } else {
 148                 logger.debug("Transformation result malformed: {}", output);
 149             }
 150         }
 151
 152         return UnDefType.UNDEF;
 153     }
 154
 155     @Override
 156     protected int getDataLength() {
 157         ERP1Message localPacket = packet;
 158         if (localPacket != null) {
 159             return localPacket.getPayload().length - ESP3_SENDERID_LENGTH - ESP3_RORG_LENGTH - ESP3_STATUS_LENGTH;
 160         } else {
 161             return bytes.length;
 162         }
 163     }
 164
 165     @Override
 166     protected boolean validateData(byte[] bytes) {
 167         return true;
 168     }
 169
 170     @Override
 171     public void addConfigPropertiesTo(DiscoveryResultBuilder discoveredThingResultBuilder) {
 172         discoveredThingResultBuilder.withProperty(PARAMETER_SENDINGEEPID, getEEPType().getId())
 173                 .withProperty(PARAMETER_RECEIVINGEEPID, getEEPType().getId());
 174     }
 175 }