Examples with TransformationServiceProvider org.eclipse.smarthome.binding.mqtt.generic.internal.generic.TransformationServiceProvider used on opensource projects

Example 1 with TransformationServiceProvider

use of org.eclipse.smarthome.binding.mqtt.generic.internal.generic.TransformationServiceProvider in project smarthome by eclipse.

the class GenericThingHandler method createChannelState.

/**
 * For every Thing channel there exists a corresponding {@link ChannelState}. It consists of the MQTT state
 * and MQTT command topic, the ChannelUID and a value state.
 *
 * @param channelConfig The channel configuration that contains MQTT state and command topic and multiple other
 *            configurations.
 * @param channelUID The channel UID
 * @param valueState The channel value state
 * @return
 */
protected ChannelState createChannelState(ChannelConfig channelConfig, ChannelUID channelUID, Value valueState) {
    ChannelState state = new ChannelState(channelConfig, channelUID, valueState, this);
    String[] transformations;
    // Incoming value transformations
    transformations = channelConfig.transformationPattern.split("∩");
    Stream.of(transformations).filter(t -> StringUtils.isNotBlank(t)).map(t -> new ChannelStateTransformation(t, transformationServiceProvider)).forEach(t -> state.addTransformation(t));
    // Outgoing value transformations
    transformations = channelConfig.transformationPatternOut.split("∩");
    Stream.of(transformations).filter(t -> StringUtils.isNotBlank(t)).map(t -> new ChannelStateTransformation(t, transformationServiceProvider)).forEach(t -> state.addTransformationOut(t));
    return state;
}