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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.radiothermostat.internal;
  14
  15 import java.lang.reflect.Method;
  16 import java.lang.reflect.Proxy;
  17
  18 import org.eclipse.jdt.annotation.NonNullByDefault;
  19 import org.eclipse.jdt.annotation.Nullable;
  20 import org.openhab.binding.radiothermostat.internal.handler.RadioThermostatHandler;
  21 import org.openhab.core.automation.annotation.ActionInput;
  22 import org.openhab.core.automation.annotation.RuleAction;
  23 import org.openhab.core.thing.binding.ThingActions;
  24 import org.openhab.core.thing.binding.ThingActionsScope;
  25 import org.openhab.core.thing.binding.ThingHandler;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 /**
  30  * Some automation actions to be used with a {@link RadioThermostatThingActions}
  31  *
  32  * @author Michael Lobstein - initial contribution
  33  *
  34  */
  35 @ThingActionsScope(name = "radiothermostat")
  36 @NonNullByDefault
  37 public class RadioThermostatThingActions implements ThingActions, IRadioThermostatThingActions {
  38     private final Logger logger = LoggerFactory.getLogger(RadioThermostatThingActions.class);
  39
  40     private @Nullable RadioThermostatHandler handler;
  41
  42     @Override
  43     @RuleAction(label = "sendRawCommand", description = "Action that sends raw command to the thermostat")
  44     public void sendRawCommand(@ActionInput(name = "sendRawCommand") @Nullable String rawCommand) {
  45         RadioThermostatHandler localHandler = handler;
  46         if (rawCommand == null) {
  47             logger.warn("sendRawCommand called with null command, ignoring");
  48             return;
  49         }
  50
  51         if (localHandler != null) {
  52             localHandler.handleRawCommand(rawCommand);
  53             logger.debug("sendRawCommand called with raw command: {}", rawCommand);
  54         }
  55     }
  56
  57     /** Static alias to support the old DSL rules engine and make the action available there. */
  58     public static void sendRawCommand(@Nullable ThingActions actions, @Nullable String rawCommand)
  59             throws IllegalArgumentException {
  60         invokeMethodOf(actions).sendRawCommand(rawCommand);
  61     }
  62
  63     @Override
  64     public void setThingHandler(@Nullable ThingHandler handler) {
  65         this.handler = (RadioThermostatHandler) handler;
  66     }
  67
  68     @Override
  69     public @Nullable ThingHandler getThingHandler() {
  70         return this.handler;
  71     }
  72
  73     private static IRadioThermostatThingActions invokeMethodOf(@Nullable ThingActions actions) {
  74         if (actions == null) {
  75             throw new IllegalArgumentException("actions cannot be null");
  76         }
  77         if (actions.getClass().getName().equals(RadioThermostatThingActions.class.getName())) {
  78             if (actions instanceof RadioThermostatThingActions) {
  79                 return (IRadioThermostatThingActions) actions;
  80             } else {
  81                 return (IRadioThermostatThingActions) Proxy.newProxyInstance(
  82                         IRadioThermostatThingActions.class.getClassLoader(),
  83                         new Class[] { IRadioThermostatThingActions.class },
  84                         (Object proxy, Method method, Object[] args) -> {
  85                             Method m = actions.getClass().getDeclaredMethod(method.getName(),
  86                                     method.getParameterTypes());
  87                             return m.invoke(actions, args);
  88                         });
  89             }
  90         }
  91         throw new IllegalArgumentException("Actions is not an instance of RadioThermostatThingActions");
  92     }
  93 }