DRL examples

gistfile1.txt

package org.openremote.test.rules;

import org.openremote.model.*;
import org.openremote.model.asset.*
import elemental.json.Json;

global java.util.logging.Logger LOG;
global org.openremote.model.rules.Assets assets;

rule "Switch room lights off when apartment ALL LIGHTS OFF switch is off"
when
    // In an asset of type RESIDENCE the power switch is turned off
    $e: AssetUpdate(attributeName == "allLightsOffSwitch", type == AssetType.RESIDENCE, value.asBoolean() == false)
then
    assets.query() // Execute a query to get "other" assets
        .parent($e.getId()) // Where parent is the apartment in LHS
        .type(AssetType.ROOM) // And the children are of type ROOM
        .applyResults(assetIds -> assetIds.forEach(assetId -> assets.dispatch( // For each asset ID in result...
            new AttributeEvent(assetId, "lightSwitch", Json.create(false)) // Dispatch an event that turns the switch off
    )));
end