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[automation] Added ItemStateUpdate action (openhab#1970)
* Added ItemUpdate action Signed-off-by: Christoph Weitkamp <github@christophweitkamp.de>
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...ava/org/openhab/core/automation/internal/module/handler/ItemStateUpdateActionHandler.java
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| /** | ||
| * Copyright (c) 2010-2020 Contributors to the openHAB project | ||
| * | ||
| * See the NOTICE file(s) distributed with this work for additional | ||
| * information. | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License 2.0 which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0 | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| */ | ||
| package org.openhab.core.automation.internal.module.handler; | ||
|
|
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| import java.util.Map; | ||
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|
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| import org.eclipse.jdt.annotation.NonNullByDefault; | ||
| import org.eclipse.jdt.annotation.Nullable; | ||
| import org.openhab.core.automation.Action; | ||
| import org.openhab.core.automation.handler.BaseActionModuleHandler; | ||
| import org.openhab.core.config.core.Configuration; | ||
| import org.openhab.core.events.EventPublisher; | ||
| import org.openhab.core.items.Item; | ||
| import org.openhab.core.items.ItemNotFoundException; | ||
| import org.openhab.core.items.ItemRegistry; | ||
| import org.openhab.core.items.events.ItemEventFactory; | ||
| import org.openhab.core.items.events.ItemStateEvent; | ||
| import org.openhab.core.types.State; | ||
| import org.openhab.core.types.TypeParser; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| /** | ||
| * This is an implementation of an ActionHandler. It sends state updates for items. | ||
| * | ||
| * @author Christoph Weitkamp - Initial contribution | ||
| */ | ||
| @NonNullByDefault | ||
| public class ItemStateUpdateActionHandler extends BaseActionModuleHandler { | ||
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| public static final String ITEM_STATE_UPDATE_ACTION = "core.ItemStateUpdateAction"; | ||
| public static final String ITEM_NAME = "itemName"; | ||
| public static final String STATE = "state"; | ||
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| private final Logger logger = LoggerFactory.getLogger(ItemStateUpdateActionHandler.class); | ||
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| private final EventPublisher eventPublisher; | ||
| private final ItemRegistry itemRegistry; | ||
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| public ItemStateUpdateActionHandler(Action module, EventPublisher eventPublisher, ItemRegistry itemRegistry) { | ||
| super(module); | ||
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| this.eventPublisher = eventPublisher; | ||
| this.itemRegistry = itemRegistry; | ||
| } | ||
|
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| @Override | ||
| public @Nullable Map<String, Object> execute(Map<String, Object> inputs) { | ||
| Configuration config = module.getConfiguration(); | ||
| String itemName = (String) config.get(ITEM_NAME); | ||
| String state = (String) config.get(STATE); | ||
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| if (itemName != null) { | ||
| try { | ||
| Item item = itemRegistry.getItem(itemName); | ||
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| State stateObj = null; | ||
| final Object st = inputs.get(STATE); | ||
|
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| if (st instanceof State) { | ||
| if (item.getAcceptedDataTypes().contains(st.getClass())) { | ||
| stateObj = (State) st; | ||
| } | ||
| } else { | ||
| stateObj = TypeParser.parseState(item.getAcceptedDataTypes(), state); | ||
| } | ||
| if (stateObj != null) { | ||
| final ItemStateEvent itemStateEvent = (ItemStateEvent) ItemEventFactory.createStateEvent(itemName, | ||
| stateObj); | ||
| logger.debug("Executing ItemStateEvent on Item {} with State {}", itemStateEvent.getItemName(), | ||
| itemStateEvent.getItemState()); | ||
| eventPublisher.post(itemStateEvent); | ||
| } else { | ||
| logger.warn("State '{}' is not valid for item '{}'.", state, itemName); | ||
| } | ||
| } catch (ItemNotFoundException e) { | ||
| logger.error("Item with name {} not found in ItemRegistry.", itemName); | ||
| } | ||
| } else { | ||
| logger.error( | ||
| "Item state was not updated because the configuration was not correct: ItemName: {}, State: {}", | ||
| itemName, state); | ||
| } | ||
| return null; | ||
| } | ||
| } |
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