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[tcpudp] Use core ChannelHandler (#550)
Signed-off-by: Jan N. Klug <github@klug.nrw>
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...ng.tcpudp/src/main/java/org/smarthomej/binding/tcpudp/internal/ChannelHandlerFactory.java
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| /** | ||
| * Copyright (c) 2021-2023 Contributors to the SmartHome/J 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.smarthomej.binding.tcpudp.internal; | ||
|
|
||
| import java.util.Optional; | ||
| import java.util.function.BiConsumer; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.Function; | ||
|
|
||
| import org.eclipse.jdt.annotation.NonNullByDefault; | ||
| import org.eclipse.jdt.annotation.Nullable; | ||
| import org.openhab.core.library.types.DateTimeType; | ||
| import org.openhab.core.library.types.PointType; | ||
| import org.openhab.core.library.types.StringType; | ||
| import org.openhab.core.thing.ChannelUID; | ||
| import org.openhab.core.thing.binding.generic.ChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.ChannelTransformation; | ||
| import org.openhab.core.thing.binding.generic.converter.ColorChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.DimmerChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.FixedValueMappingChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.GenericChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.ImageChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.NumberChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.PlayerChannelHandler; | ||
| import org.openhab.core.thing.binding.generic.converter.RollershutterChannelHandler; | ||
| import org.openhab.core.thing.internal.binding.generic.converter.AbstractTransformingChannelHandler; | ||
| import org.openhab.core.types.Command; | ||
| import org.openhab.core.types.State; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
| import org.smarthomej.binding.tcpudp.internal.config.TcpUdpChannelConfig; | ||
|
|
||
| /** | ||
| * The {@link ChannelHandlerFactory} is a helper class for creating {@link ChannelHandler}s | ||
| * | ||
| * @author Jan N. Klug - Initial contribution | ||
| */ | ||
| @NonNullByDefault | ||
| public class ChannelHandlerFactory { | ||
| private final Logger logger = LoggerFactory.getLogger(ChannelHandlerFactory.class); | ||
|
|
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| private @Nullable Consumer<String> sendValue; | ||
| private BiConsumer<ChannelUID, State> updateState; | ||
| private BiConsumer<ChannelUID, Command> postCommand; | ||
|
|
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| public ChannelHandlerFactory(BiConsumer<ChannelUID, State> updateState, BiConsumer<ChannelUID, Command> postCommand, | ||
| @Nullable Consumer<String> sendValue) { | ||
| this.updateState = updateState; | ||
| this.postCommand = postCommand; | ||
| this.sendValue = sendValue; | ||
| } | ||
|
|
||
| public void setSendValue(Consumer<String> sendValue) { | ||
| this.sendValue = sendValue; | ||
| } | ||
|
|
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| public void setUpdateState(BiConsumer<ChannelUID, State> updateState) { | ||
| this.updateState = updateState; | ||
| } | ||
|
|
||
| public void setPostCommand(BiConsumer<ChannelUID, Command> postCommand) { | ||
| this.postCommand = postCommand; | ||
| } | ||
|
|
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| public Optional<ChannelHandler> create(ChannelUID channelUID, @Nullable String acceptedItemType, | ||
| TcpUdpChannelConfig channelConfig) { | ||
| if (acceptedItemType == null) { | ||
| logger.warn("Cannot determine item-type for channel '{}'", channelUID); | ||
| return Optional.empty(); | ||
| } | ||
|
|
||
| ChannelHandler channelHandler = null; | ||
| switch (acceptedItemType) { | ||
| case "Color": | ||
| channelHandler = createChannelHandler(ColorChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "DateTime": | ||
| channelHandler = createGenericChannelHandler(channelUID, channelConfig, DateTimeType::new); | ||
| break; | ||
| case "Dimmer": | ||
| channelHandler = createChannelHandler(DimmerChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "Contact": | ||
| case "Switch": | ||
| channelHandler = createChannelHandler(FixedValueMappingChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "Image": | ||
| channelHandler = new ImageChannelHandler(state -> updateState.accept(channelUID, state)); | ||
| break; | ||
| case "Location": | ||
| channelHandler = createGenericChannelHandler(channelUID, channelConfig, PointType::new); | ||
| break; | ||
| case "Number": | ||
| channelHandler = createChannelHandler(NumberChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "Player": | ||
| channelHandler = createChannelHandler(PlayerChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "Rollershutter": | ||
| channelHandler = createChannelHandler(RollershutterChannelHandler::new, channelUID, channelConfig); | ||
| break; | ||
| case "String": | ||
| channelHandler = createGenericChannelHandler(channelUID, channelConfig, StringType::new); | ||
| break; | ||
| default: | ||
| logger.warn("Unsupported item-type '{}'", acceptedItemType); | ||
| } | ||
|
|
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| return Optional.ofNullable(channelHandler); | ||
| } | ||
|
|
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| private ChannelHandler createChannelHandler(AbstractTransformingChannelHandler.Factory factory, | ||
| ChannelUID channelUID, TcpUdpChannelConfig channelConfig) { | ||
| return factory.create(state -> updateState.accept(channelUID, state), | ||
| command -> postCommand.accept(channelUID, command), sendValue, | ||
| new ChannelTransformation(channelConfig.stateTransformation), | ||
| new ChannelTransformation(channelConfig.commandTransformation), channelConfig); | ||
| } | ||
|
|
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| private ChannelHandler createGenericChannelHandler(ChannelUID channelUID, TcpUdpChannelConfig channelConfig, | ||
| Function<String, State> toState) { | ||
| AbstractTransformingChannelHandler.Factory factory = (state, command, value, stateTrans, commandTrans, | ||
| config) -> new GenericChannelHandler(toState, state, command, value, stateTrans, commandTrans, config); | ||
| return createChannelHandler(factory, channelUID, channelConfig); | ||
| } | ||
| } |
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