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   1 /**
   2  * Copyright (c) 2010-2021 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.automation.pidcontroller.internal.handler;
  14
  15 import static org.openhab.automation.pidcontroller.internal.PIDControllerConstants.AUTOMATION_NAME;
  16
  17 import java.math.BigDecimal;
  18 import java.util.Map;
  19
  20 import org.eclipse.jdt.annotation.NonNullByDefault;
  21 import org.eclipse.jdt.annotation.Nullable;
  22 import org.openhab.core.automation.Action;
  23 import org.openhab.core.automation.handler.ActionHandler;
  24 import org.openhab.core.automation.handler.BaseModuleHandler;
  25 import org.openhab.core.config.core.Configuration;
  26 import org.openhab.core.events.EventPublisher;
  27 import org.openhab.core.items.ItemRegistry;
  28 import org.openhab.core.items.events.ItemCommandEvent;
  29 import org.openhab.core.items.events.ItemEventFactory;
  30 import org.openhab.core.library.types.DecimalType;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 /**
  35  *
  36  * @author Hilbrand Bouwkamp - Initial Contribution
  37  * @author Fabian Wolter - Add PID debugging items
  38  */
  39 @NonNullByDefault
  40 public class PIDControllerActionHandler extends BaseModuleHandler<Action> implements ActionHandler {
  41     public static final String MODULE_TYPE_ID = AUTOMATION_NAME + ".action";
  42
  43     private final Logger logger = LoggerFactory.getLogger(PIDControllerActionHandler.class);
  44
  45     private ItemRegistry itemRegistry;
  46     private EventPublisher eventPublisher;
  47
  48     public PIDControllerActionHandler(Action module, ItemRegistry itemRegistry, EventPublisher eventPublisher) {
  49         super(module);
  50         this.itemRegistry = itemRegistry;
  51         this.eventPublisher = eventPublisher;
  52     }
  53
  54     @Override
  55     public @Nullable Map<String, Object> execute(Map<String, Object> context) {
  56         final Configuration configuration = module.getConfiguration();
  57
  58         context.forEach((k, v) -> {
  59             // Remove triggername from key to get raw trigger param
  60             String itemKey = k.substring(k.lastIndexOf('.') + 1);
  61             String itemName = (String) configuration.get(itemKey);
  62
  63             if (itemName == null || itemName.isBlank()) {
  64                 // try original key name (<triggername>.<trigger_param>)
  65                 itemName = (String) configuration.get(k);
  66                 if (itemName == null || itemName.isBlank()) {
  67                     return;
  68                 }
  69             }
  70             if (v instanceof BigDecimal) {
  71                 final BigDecimal command = (BigDecimal) v;
  72                 final DecimalType outputValue = new DecimalType(command);
  73                 final ItemCommandEvent itemCommandEvent = ItemEventFactory.createCommandEvent(itemName, outputValue);
  74
  75                 eventPublisher.post(itemCommandEvent);
  76             } else {
  77                 logger.warn(
  78                         "Command was not posted because either the configuration was not correct or a service was missing: ItemName: {}, Command: {}, eventPublisher: {}, ItemRegistry: {}",
  79                         itemName, v, eventPublisher, itemRegistry);
  80             }
  81         });
  82         return null;
  83     }
  84 }