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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.pushbullet.internal.action;
  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.pushbullet.internal.handler.PushbulletHandler;
  21 import org.openhab.core.automation.annotation.ActionInput;
  22 import org.openhab.core.automation.annotation.ActionOutput;
  23 import org.openhab.core.automation.annotation.RuleAction;
  24 import org.openhab.core.thing.binding.ThingActions;
  25 import org.openhab.core.thing.binding.ThingActionsScope;
  26 import org.openhab.core.thing.binding.ThingHandler;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * The {@link PushbulletActions} class defines rule actions for sending notifications
  32  * <p>
  33  * <b>Note:</b>The static method <b>invokeMethodOf</b> handles the case where
  34  * the test <i>actions instanceof PushbulletActions</i> fails. This test can fail
  35  * due to an issue in openHAB core v2.5.0 where the {@link PushbulletActions} class
  36  * can be loaded by a different classloader than the <i>actions</i> instance.
  37  *
  38  * @author Hakan Tandogan - Initial contribution
  39  */
  40 @ThingActionsScope(name = "pushbullet")
  41 @NonNullByDefault
  42 public class PushbulletActions implements ThingActions, IPushbulletActions {
  43
  44     private final Logger logger = LoggerFactory.getLogger(PushbulletActions.class);
  45
  46     private @Nullable PushbulletHandler handler;
  47
  48     @Override
  49     public void setThingHandler(@Nullable ThingHandler handler) {
  50         this.handler = (PushbulletHandler) handler;
  51     }
  52
  53     @Override
  54     public @Nullable ThingHandler getThingHandler() {
  55         return this.handler;
  56     }
  57
  58     @Override
  59     @RuleAction(label = "@text/actionSendPushbulletNoteLabel", description = "@text/actionSendPushbulletNoteDesc")
  60     public @ActionOutput(name = "success", type = "java.lang.Boolean") Boolean sendPushbulletNote(
  61             @ActionInput(name = "recipient", label = "@text/actionSendPushbulletNoteInputRecipientLabel", description = "@text/actionSendPushbulletNoteInputRecipientDesc") @Nullable String recipient,
  62             @ActionInput(name = "title", label = "@text/actionSendPushbulletNoteInputTitleLabel", description = "@text/actionSendPushbulletNoteInputTitleDesc") @Nullable String title,
  63             @ActionInput(name = "message", label = "@text/actionSendPushbulletNoteInputMessageLabel", description = "@text/actionSendPushbulletNoteInputMessageDesc") @Nullable String message) {
  64         logger.trace("sendPushbulletNote '{}', '{}', '{}'", recipient, title, message);
  65
  66         // Use local variable so the SAT check can do proper flow analysis
  67         PushbulletHandler localHandler = handler;
  68
  69         if (localHandler == null) {
  70             logger.warn("Pushbullet service Handler is null!");
  71             return false;
  72         }
  73
  74         return localHandler.sendPush(recipient, title, message, "note");
  75     }
  76
  77     public static boolean sendPushbulletNote(@Nullable ThingActions actions, @Nullable String recipient,
  78             @Nullable String title, @Nullable String message) {
  79         return invokeMethodOf(actions).sendPushbulletNote(recipient, title, message);
  80     }
  81
  82     @Override
  83     @RuleAction(label = "@text/actionSendPushbulletNoteLabel", description = "@text/actionSendPushbulletNoteDesc")
  84     public @ActionOutput(name = "success", type = "java.lang.Boolean") Boolean sendPushbulletNote(
  85             @ActionInput(name = "recipient", label = "@text/actionSendPushbulletNoteInputRecipientLabel", description = "@text/actionSendPushbulletNoteInputRecipientDesc") @Nullable String recipient,
  86             @ActionInput(name = "message", label = "@text/actionSendPushbulletNoteInputMessageLabel", description = "@text/actionSendPushbulletNoteInputMessageDesc") @Nullable String message) {
  87         logger.trace("sendPushbulletNote '{}', '{}'", recipient, message);
  88
  89         // Use local variable so the SAT check can do proper flow analysis
  90         PushbulletHandler localHandler = handler;
  91
  92         if (localHandler == null) {
  93             logger.warn("Pushbullet service Handler is null!");
  94             return false;
  95         }
  96
  97         return localHandler.sendPush(recipient, message, "note");
  98     }
  99
 100     public static boolean sendPushbulletNote(@Nullable ThingActions actions, @Nullable String recipient,
 101             @Nullable String message) {
 102         return invokeMethodOf(actions).sendPushbulletNote(recipient, message);
 103     }
 104
 105     private static IPushbulletActions invokeMethodOf(@Nullable ThingActions actions) {
 106         if (actions == null) {
 107             throw new IllegalArgumentException("actions cannot be null");
 108         }
 109         if (actions.getClass().getName().equals(PushbulletActions.class.getName())) {
 110             if (actions instanceof IPushbulletActions) {
 111                 return (IPushbulletActions) actions;
 112             } else {
 113                 return (IPushbulletActions) Proxy.newProxyInstance(IPushbulletActions.class.getClassLoader(),
 114                         new Class[] { IPushbulletActions.class }, (Object proxy, Method method, Object[] args) -> {
 115                             Method m = actions.getClass().getDeclaredMethod(method.getName(),
 116                                     method.getParameterTypes());
 117                             return m.invoke(actions, args);
 118                         });
 119             }
 120         }
 121         throw new IllegalArgumentException("Actions is not an instance of PushbulletActions");
 122     }
 123 }