openhab · kaikreuzer · Mar 17, 2023 · Mar 2, 2023
@@ -401,6 +401,7 @@
 /bundles/org.openhab.transform.regex/ @openhab/add-ons-maintainers
 /bundles/org.openhab.transform.rollershutterposition/ @jsjames
 /bundles/org.openhab.transform.scale/ @clinique
+/bundles/org.openhab.transform.vat/ @jlaur
 /bundles/org.openhab.transform.xpath/ @openhab/add-ons-maintainers
 /bundles/org.openhab.transform.xslt/ @openhab/add-ons-maintainers
 /bundles/org.openhab.voice.googlestt/ @GiviMAD

@@ -2001,6 +2001,11 @@
       <artifactId>org.openhab.transform.scale</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.openhab.addons.bundles</groupId>
+      <artifactId>org.openhab.transform.vat</artifactId>
+      <version>${project.version}</version>
+    </dependency>
     <dependency>
       <groupId>org.openhab.addons.bundles</groupId>
       <artifactId>org.openhab.transform.xpath</artifactId>

@@ -0,0 +1,13 @@
+This content is produced and maintained by the openHAB project.
+
+* Project home: https://www.openhab.org
+
+== Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License 2.0 which is available at
+https://www.eclipse.org/legal/epl-2.0/.
+
+== Source Code
+
+https://github.com/openhab/openhab-addons
@@ -0,0 +1,41 @@
+# VAT Transformation Service
+
+The VAT Transformation Service adds VAT (Value-Added Tax) to a given input amount.
+The input string must be either an ISO 3166 alpha-2 country code or a percentage, i.e. numerical format.
+
+## Examples
+
+### Display
+
+```java
+Number CurrentSpotPrice "Current Spot Price incl. VAT [VAT(12.5):%s]" <price>
+```
+
+### In a Rule
+
+Add Danish VAT to price:
+
+```java
+var Number price = 499
+logInfo("Price", "Price incl. VAT: " + transform("VAT", "DK", price.toString))
+```
+
+## Usage as a Profile
+
+The functionality of this `TransformationService` can also be used in a `Profile` on an `ItemChannelLink`.
+This is the most powerful usage since VAT will be added without providing any explicit country code, percentage or configuration.
+To use this, an `.items` file can be configured as follows:
+
+```java
+Number CurrentSpotPrice "Current Spot Price" <price> { channel="<channelUID>" [profile="transform:VAT"] }
+```
+
+To override VAT percentage for configured system country:
+
+```java
+Number CurrentSpotPrice "Current Spot Price" <price> { channel="<channelUID>" [profile="transform:VAT", percentage="12.5"] }
+```
+
+If VAT is not known for the configured country or the provided percentage is invalid, the default is 0%, so the input value will be put into the transformation without any changes.
+
+Please note: This profile is a one-way transformation, i.e. only values from a device towards the item are changed, the other direction is left untouched.
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.openhab.addons.bundles</groupId>
+    <artifactId>org.openhab.addons.reactor.bundles</artifactId>
+    <version>4.0.0-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>org.openhab.transform.vat</artifactId>
+
+  <name>openHAB Add-ons :: Bundles :: Transformation Service :: Value-Added Tax</name>
+
+</project>
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<features name="org.openhab.transform.vat-${project.version}" xmlns="http://karaf.apache.org/xmlns/features/v1.4.0">
+	<repository>mvn:org.openhab.core.features.karaf/org.openhab.core.features.karaf.openhab-core/${ohc.version}/xml/features</repository>
+
+	<feature name="openhab-transformation-vat" description="Value-Added Tax Transformation" version="${project.version}">
+		<feature>openhab-runtime-base</feature>
+		<bundle start-level="75">mvn:org.openhab.addons.bundles/org.openhab.transform.vat/${project.version}</bundle>
+	</feature>
+</features>
@@ -0,0 +1,205 @@
+/**
+ * Copyright (c) 2010-2023 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.transform.vat.internal;
+
+import java.util.Map;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.openhab.core.thing.profiles.ProfileTypeUID;
+import org.openhab.core.transform.TransformationService;
+
+/**
+ * The {@link VATTransformationConstants} class defines constants
+ * used across the whole profile.
+ *
+ * @author Jacob Laursen - Initial contribution
+ */
+@NonNullByDefault
+public class VATTransformationConstants {
+
+    public static final ProfileTypeUID PROFILE_TYPE_UID = new ProfileTypeUID(
+            TransformationService.TRANSFORM_PROFILE_SCOPE, "VAT");
+
+    public static final Map<String, String> RATES = Map.ofEntries(
+            // European Union countries
+            Map.entry("AT", "20"), // Austria
+            Map.entry("BE", "21"), // Belgium
+            Map.entry("BG", "20"), // Bulgaria
+            Map.entry("HR", "25"), // Croatia
+            Map.entry("CY", "19"), // Cyprus
+            Map.entry("CZ", "21"), // Czech Republic
+            Map.entry("DK", "25"), // Denmark
+            Map.entry("EE", "20"), // Estonia
+            Map.entry("FI", "24"), // Finland
+            Map.entry("FR", "20"), // France
+            Map.entry("DE", "19"), // Germany
+            Map.entry("GR", "24"), // Greece
+            Map.entry("HU", "27"), // Hungary
+            Map.entry("IE", "23"), // Ireland
+            Map.entry("IT", "22"), // Italy
+            Map.entry("LV", "21"), // Latvia
+            Map.entry("LT", "21"), // Lithuania
+            Map.entry("LU", "17"), // Luxembourg
+            Map.entry("MT", "18"), // Malta
+            Map.entry("NL", "21"), // Netherlands
+            Map.entry("PL", "23"), // Poland
+            Map.entry("PT", "23"), // Portugal
+            Map.entry("RO", "19"), // Romania
+            Map.entry("SK", "20"), // Slovakia
+            Map.entry("SI", "22"), // Slovenia
+            Map.entry("ES", "21"), // Spain
+            Map.entry("SE", "25"), // Sweden
+
+            // Non-European Union countries
+            Map.entry("AL", "20"), // Albania
+            Map.entry("DZ", "19"), // Algeria
+            Map.entry("AD", "4.5"), // Andorra
+            Map.entry("AO", "14"), // Angola
+            Map.entry("AG", "15"), // Antigua and Barbuda
+            Map.entry("AR", "21"), // Argentina
+            Map.entry("AM", "20"), // Armenia
+            Map.entry("AU", "10"), // Australia
+            Map.entry("AZ", "18"), // Azerbaijan
+            Map.entry("BS", "12"), // Bahamas
+            Map.entry("BH", "10"), // Bahrain
+            Map.entry("BD", "15"), // Bangladesh
+            Map.entry("BB", "17.5"), // Barbados
+            Map.entry("BY", "20"), // Belarus
+            Map.entry("BZ", "12.5"), // Belize
+            Map.entry("BJ", "18"), // Benin
+            Map.entry("BO", "13"), // Bolivia
+            Map.entry("BA", "17"), // Bosnia and Herzegovina
+            Map.entry("BW", "12"), // Botswana
+            Map.entry("BR", "20"), // Brazil
+            Map.entry("BF", "18"), // Burkina Faso
+            Map.entry("BI", "18"), // Burundi
+            Map.entry("KH", "10"), // Cambodia
+            Map.entry("CM", "19.25"), // Cameroon
+            Map.entry("CA", "5"), // Canada
+            Map.entry("CV", "15"), // Cape Verde
+            Map.entry("CF", "19"), // Central African Republic
+            Map.entry("TD", "18"), // Chad
+            Map.entry("CL", "19"), // Chile
+            Map.entry("CN", "13"), // China
+            Map.entry("CO", "19"), // Colombia
+            Map.entry("CR", "13"), // Costa Rica
+            Map.entry("CD", "16"), // Democratic Republic of the Congo
+            Map.entry("DM", "15"), // Dominica
+            Map.entry("DO", "18"), // Dominican Republic
+            Map.entry("EC", "12"), // Ecuador
+            Map.entry("EG", "14"), // Egypt
+            Map.entry("SV", "13"), // El Salvador
+            Map.entry("GQ", "15"), // Equatorial Guinea
+            Map.entry("ET", "15"), // Ethiopia
+            Map.entry("FO", "25"), // Faroe Islands
+            Map.entry("FJ", "15"), // Fiji
+            Map.entry("GA", "18"), // Gabon
+            Map.entry("GM", "15"), // Gambia
+            Map.entry("GE", "18"), // Georgia
+            Map.entry("GH", "15"), // Ghana
+            Map.entry("GD", "15"), // Grenada
+            Map.entry("GT", "12"), // Guatemala
+            Map.entry("GN", "18"), // Guinea
+            Map.entry("GW", "15"), // Guinea-Bissau
+            Map.entry("GY", "16"), // Guyana
+            Map.entry("HT", "10"), // Haiti
+            Map.entry("HN", "15"), // Honduras
+            Map.entry("IS", "24"), // Iceland
+            Map.entry("IN", "5.5"), // India
+            Map.entry("ID", "11"), // Indonesia
+            Map.entry("IR", "9"), // Iran
+            Map.entry("IM", "20"), // Isle of Man
+            Map.entry("IL", "17"), // Israel
+            Map.entry("CI", "18"), // Ivory Coast
+            Map.entry("JM", "12.5"), // Jamaica
+            Map.entry("JP", "10"), // Japan
+            Map.entry("JE", "5"), // Jersey
+            Map.entry("JO", "16"), // Jordan
+            Map.entry("KZ", "12"), // Kazakhstan
+            Map.entry("KE", "16"), // Kenya
+            Map.entry("KG", "20"), // Kyrgyzstan
+            Map.entry("LA", "10"), // Laos
+            Map.entry("LB", "11"), // Lebanon
+            Map.entry("LS", "14"), // Lesotho
+            Map.entry("LI", "7.7"), // Liechtenstein
+            Map.entry("MG", "20"), // Madagascar
+            Map.entry("MW", "16.5"), // Malawi
+            Map.entry("MY", "6"), // Malaysia
+            Map.entry("MV", "6"), // Maldives
+            Map.entry("ML", "18"), // Mali
+            Map.entry("MR", "14"), // Mauritania
+            Map.entry("MU", "15"), // Mauritius
+            Map.entry("MX", "16"), // Mexico
+            Map.entry("MD", "20"), // Moldova
+            Map.entry("MC", "19.6"), // Monaco
+            Map.entry("MN", "10"), // Mongolia
+            Map.entry("ME", "21"), // Montenegro
+            Map.entry("MA", "20"), // Morocco
+            Map.entry("MZ", "17"), // Mozambique
+            Map.entry("NA", "15"), // Namibia
+            Map.entry("NP", "13"), // Nepal
+            Map.entry("NZ", "15"), // New Zealand
+            Map.entry("NI", "15"), // Nicaragua
+            Map.entry("NE", "19"), // Niger
+            Map.entry("NG", "7.5"), // Nigeria
+            Map.entry("NU", "5"), // Niue
+            Map.entry("MK", "18"), // North Macedonia
+            Map.entry("NO", "25"), // Norway
+            Map.entry("PK", "17"), // Pakistan
+            Map.entry("PW", "10"), // Palau
+            Map.entry("PS", "16"), // Palestine
+            Map.entry("PA", "7"), // Panama
+            Map.entry("PG", "10"), // Papua New Guinea
+            Map.entry("PY", "10"), // Paraguay
+            Map.entry("PE", "18"), // Peru
+            Map.entry("PH", "12"), // Philippines
+            Map.entry("CG", "16"), // Republic of Congo
+            Map.entry("RU", "20"), // Russia
+            Map.entry("RW", "18"), // Rwanda
+            Map.entry("KN", "17"), // Saint Kitts and Nevis
+            Map.entry("VC", "15"), // Saint Vincent and the Grenadines
+            Map.entry("WS", "15"), // Samoa
+            Map.entry("SA", "15"), // Saudi Arabia
+            Map.entry("SN", "18"), // Senegal
+            Map.entry("RS", "20"), // Serbia
+            Map.entry("SC", "15"), // Seychelles
+            Map.entry("SL", "15"), // Sierra Leone
+            Map.entry("SG", "8"), // Singapore
+            Map.entry("ZA", "15"), // South Africa
+            Map.entry("KR", "10"), // South Korea
+            Map.entry("LK", "12"), // Sri Lanka
+            Map.entry("SD", "17"), // Sudan
+            Map.entry("CH", "7.7"), // Switzerland
+            Map.entry("TW", "5"), // Taiwan
+            Map.entry("TJ", "20"), // Tajikistan
+            Map.entry("TZ", "18"), // Tanzania
+            Map.entry("TH", "10"), // Thailand
+            Map.entry("TG", "18"), // Togo
+            Map.entry("TO", "15"), // Tonga
+            Map.entry("TT", "12.5"), // Trinidad and Tobago
+            Map.entry("TN", "18"), // Tunisia
+            Map.entry("TR", "18"), // Turkey
+            Map.entry("TM", "15"), // Turkmenistan
+            Map.entry("UG", "18"), // Uganda
+            Map.entry("UA", "20"), // Ukraine
+            Map.entry("AE", "5"), // United Arab Emirates
+            Map.entry("GB", "20"), // United Kingdom
+            Map.entry("UY", ""), // Uruguay
+            Map.entry("UZ", "12"), // Uzbekistan
+            Map.entry("VU", "13"), // Vanuatu
+            Map.entry("VN", "10"), // Vietnam
+            Map.entry("VE", "12"), // Venezuela
+            Map.entry("ZM", "16"), // Zambia
+            Map.entry("ZW", "15") // Zimbabwe
+    );
+}
@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2010-2023 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.transform.vat.internal;
+
+import static org.openhab.transform.vat.internal.VATTransformationConstants.*;
+
+import java.math.BigDecimal;
+
+import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.library.types.QuantityType;
+import org.openhab.core.transform.TransformationException;
+import org.openhab.core.transform.TransformationService;
+import org.osgi.service.component.annotations.Component;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * This {@link TransformationService} adds VAT to the input according to configured country.
+ *
+ * @author Jacob Laursen - Initial contribution
+ */
+@NonNullByDefault
+@Component(service = { TransformationService.class }, property = { "openhab.transform=VAT" })
+public class VATTransformationService implements TransformationService {
+
+    private final Logger logger = LoggerFactory.getLogger(VATTransformationService.class);
+
+    @Override
+    public @Nullable String transform(String valueString, String sourceString) throws TransformationException {
+        QuantityType<?> source;
+        try {
+            source = new QuantityType<>(sourceString);
+        } catch (IllegalArgumentException e) {
+            logger.warn("Input value '{}' could not be converted to a valid number", sourceString);
+            throw new TransformationException("VAT Transformation can only be used with numeric inputs", e);
+        }
+        BigDecimal value;
+        try {
+            value = new BigDecimal(valueString);
+        } catch (NumberFormatException e) {
+            String rate = RATES.get(valueString);
+            if (rate == null) {
+                logger.warn("Input value '{}' could not be converted to a valid number or country code", valueString);
+                throw new TransformationException("VAT Transformation can only be used with numeric inputs", e);
+            }
+            value = new BigDecimal(rate);
+        }
+
+        return addVAT(source, value).toString();
+    }
+
+    private QuantityType<?> addVAT(QuantityType<?> source, BigDecimal percentage) {
+        return source.multiply(percentage.divide(new BigDecimal("100")).add(BigDecimal.ONE));
+    }
+}