[homematic] checkstyle fixes (#15604)

Signed-off-by: Leo Siepel <leosiepel@gmail.com>

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/common/HomematicConfig.java

@@ -58,7 +58,6 @@ public class HomematicConfig {
     private int bufferSize = 2048;
 
     private HmGatewayInfo gatewayInfo;
-    private int callbackRegistrationRetries;
     private int callbackRegTimeout;
 
     /**

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/communicator/message/XmlRpcRequest.java

@@ -39,7 +39,7 @@ public class XmlRpcRequest implements RpcRequest<String> {
     private List<Object> parms;
     private StringBuilder sb;
     private TYPE type;
-    public static SimpleDateFormat xmlRpcDateFormat = new SimpleDateFormat("yyyyMMdd'T'HH:mm:ss");
+    public static final SimpleDateFormat XML_RPC_DATEFORMAT = new SimpleDateFormat("yyyyMMdd'T'HH:mm:ss");
 
     public XmlRpcRequest(String methodName) {
         this(methodName, TYPE.REQUEST);
@@ -135,7 +135,9 @@ public class XmlRpcRequest implements RpcRequest<String> {
             } else if (clazz == Boolean.class) {
                 tag("boolean", ((Boolean) value).booleanValue() ? "1" : "0");
             } else if (clazz == Date.class) {
-                tag("dateTime.iso8601", xmlRpcDateFormat.format(((Date) value)));
+                synchronized (XML_RPC_DATEFORMAT) {
+                    tag("dateTime.iso8601", XML_RPC_DATEFORMAT.format(((Date) value)));
+                }
             } else if (value instanceof Calendar calendar) {
                 generateValue(calendar.getTime());
             } else if (value instanceof byte[] bytes) {

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/communicator/message/XmlRpcResponse.java

@@ -149,7 +149,7 @@ public class XmlRpcResponse implements RpcResponse {
                     break;
                 case "datetime.iso8601":
                     try {
-                        data.add(XmlRpcRequest.xmlRpcDateFormat.parse(currentValue));
+                        data.add(XmlRpcRequest.XML_RPC_DATEFORMAT.parse(currentValue));
                     } catch (ParseException ex) {
                         throw new SAXException(ex.getMessage(), ex);
                     }

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/communicator/parser/DisplayOptionsParser.java

@@ -34,7 +34,7 @@ import org.slf4j.LoggerFactory;
 
 public class DisplayOptionsParser extends CommonRpcParser<Object, Void> {
     private final Logger logger = LoggerFactory.getLogger(DisplayOptionsParser.class);
-    private static final String[] onOff = new String[] { "ON", "OFF" };
+    private static final String[] ON_OFF = new String[] { "ON", "OFF" };
     private static final int IDX_NOT_FOUND = -1;
     private HmChannel channel;
     private String text;
@@ -128,7 +128,7 @@ public class DisplayOptionsParser extends CommonRpcParser<Object, Void> {
             String[] dpOpts = dp.getOptions();
             String[] options = new String[dpOpts.length - 1];
             options = Arrays.copyOfRange(dpOpts, 1, dpOpts.length);
-            for (String onOffString : onOff) {
+            for (String onOffString : ON_OFF) {
                 int onIdx = findInArray(options, onOffString);
                 if (onIdx != IDX_NOT_FOUND) {
                     options[onIdx] = datapointName + "_" + onOffString;

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/communicator/virtual/BatteryTypeVirtualDatapointHandler.java

@@ -33,12 +33,12 @@ import org.slf4j.LoggerFactory;
 public class BatteryTypeVirtualDatapointHandler extends AbstractVirtualDatapointHandler {
     private final Logger logger = LoggerFactory.getLogger(BatteryTypeVirtualDatapointHandler.class);
 
-    private static final Properties batteries = new Properties();
+    private static final Properties BATT_PROPERTIES = new Properties();
 
     public BatteryTypeVirtualDatapointHandler() {
         Bundle bundle = FrameworkUtil.getBundle(getClass());
         try (InputStream stream = bundle.getResource("homematic/batteries.properties").openStream()) {
-            batteries.load(stream);
+            BATT_PROPERTIES.load(stream);
         } catch (IllegalStateException | IOException e) {
             logger.warn("The resource homematic/batteries.properties could not be loaded! Battery types not available",
                     e);
@@ -52,7 +52,7 @@ public class BatteryTypeVirtualDatapointHandler extends AbstractVirtualDatapoint
 
     @Override
     public void initialize(HmDevice device) {
-        String batteryType = batteries.getProperty(device.getType());
+        String batteryType = BATT_PROPERTIES.getProperty(device.getType());
         if (batteryType != null) {
             addDatapoint(device, 0, getName(), HmValueType.STRING, batteryType, true);
         }

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/communicator/virtual/ButtonVirtualDatapointHandler.java

@@ -22,13 +22,12 @@ import org.openhab.binding.homematic.internal.model.HmDatapoint;
 import org.openhab.binding.homematic.internal.model.HmDevice;
 import org.openhab.binding.homematic.internal.model.HmValueType;
 import org.openhab.core.thing.CommonTriggerEvents;
-import org.openhab.core.thing.DefaultSystemChannelTypeProvider;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
  * A virtual String datapoint which adds a BUTTON datapoint. It will forward key events to the
- * system channel {@link DefaultSystemChannelTypeProvider#SYSTEM_BUTTON}.
+ * system channel {@link org.openhab.core.thing.DefaultSystemChannelTypeProvider#SYSTEM_BUTTON}.
  *
  * @author Michael Reitler - Initial contribution
  */

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/converter/type/AbstractTypeConverter.java

@@ -43,15 +43,15 @@ public abstract class AbstractTypeConverter<T extends State> implements TypeConv
     /**
      * Defines all devices where the state datapoint must be inverted.
      */
-    private static final List<StateInvertInfo> stateInvertDevices = new ArrayList<>(3);
+    private static final List<StateInvertInfo> STATE_INVERT_INFO_LIST = new ArrayList<>(3);
 
     static {
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT));
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT_2));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT_2));
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_INCLINATION_SENSOR));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_INCLINATION_SENSOR));
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_WIRED_IO_MODULE, 15, 26));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_WIRED_IO_MODULE, 15, 26));
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_MAX_WINDOW_SENSOR));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_MAX_WINDOW_SENSOR));
-        stateInvertDevices.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT_INTERFACE));
+        STATE_INVERT_INFO_LIST.add(new StateInvertInfo(DEVICE_TYPE_SHUTTER_CONTACT_INTERFACE));
     }
 
     /**
@@ -59,7 +59,7 @@ public abstract class AbstractTypeConverter<T extends State> implements TypeConv
      */
     protected boolean isStateInvertDatapoint(HmDatapoint dp) {
         if (DATAPOINT_NAME_STATE.equals(dp.getName())) {
-            for (StateInvertInfo stateInvertInfo : stateInvertDevices) {
+            for (StateInvertInfo stateInvertInfo : STATE_INVERT_INFO_LIST) {
                 if (stateInvertInfo.isToInvert(dp)) {
                     return true;
                 }

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/converter/type/QuantityTypeConverter.java

@@ -32,11 +32,11 @@ import org.openhab.core.types.Type;
 public class QuantityTypeConverter extends AbstractTypeConverter<QuantityType<? extends Quantity<?>>> {
 
     // this literal is required because some gateway types are mixing up encodings in their XML-RPC responses
-    private final String UNCORRECT_ENCODED_CELSIUS = "°C";
+    private static final String UNCORRECT_ENCODED_CELSIUS = "°C";
 
     // "100%" is a commonly used "unit" in datapoints. Generated channel-type is of DecimalType,
     // but clients may define a QuantityType if preferred
-    private final String HUNDRED_PERCENT = "100%";
+    private static final String HUNDRED_PERCENT = "100%";
 
     @Override
     protected boolean toBindingValidation(HmDatapoint dp, Class<? extends Type> typeClass) {

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/discovery/eq3udp/Eq3UdpRequest.java

@@ -26,7 +26,7 @@ public class Eq3UdpRequest {
     private static final byte UDP_IDENTIFY = 73;
     private static final byte UDP_SEPARATOR = 0;
 
-    private static final int senderId = new Random().nextInt() & 0xFFFFFF;
+    private static final int SENDER_ID = new Random().nextInt() & 0xFFFFFF;
     private static final String EQ3_DEVICE_TYPE = "eQ3-*";
     private static final String EQ3_SERIAL_NUMBER = "*";
 
@@ -41,7 +41,7 @@ public class Eq3UdpRequest {
      * Returns the sender id.
      */
     public static int getSenderId() {
-        return senderId;
+        return SENDER_ID;
     }
 
     /**
@@ -51,7 +51,7 @@ public class Eq3UdpRequest {
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         baos.write(2);
         for (int i = 2; i >= 0; i--) {
-            byte temp = (byte) (senderId >> i * 8 & 0xFF);
+            byte temp = (byte) (SENDER_ID >> i * 8 & 0xFF);
             baos.write(temp);
         }
         baos.write(UDP_SEPARATOR);

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/handler/HomematicThingHandler.java

@@ -27,7 +27,6 @@ import java.util.Objects;
 import java.util.concurrent.Future;
 
 import org.eclipse.jdt.annotation.Nullable;
-import org.openhab.binding.homematic.internal.HomematicBindingConstants;
 import org.openhab.binding.homematic.internal.common.HomematicConfig;
 import org.openhab.binding.homematic.internal.communicator.HomematicGateway;
 import org.openhab.binding.homematic.internal.converter.ConverterException;
@@ -372,8 +371,10 @@ public class HomematicThingHandler extends BaseThingHandler {
      * @param datapointName The datapoint that will be updated on the device
      * @param currentValue The current value of the datapoint
      * @param newValue The value that will be sent to the device
-     * @return The rxMode ({@link HomematicBindingConstants#RX_BURST_MODE "BURST"} for burst mode,
+     * @return The rxMode ({@link org.openhab.binding.homematic.internal.HomematicBindingConstants#RX_BURST_MODE
-     *         {@link HomematicBindingConstants#RX_WAKEUP_MODE "WAKEUP"} for wakeup mode, or null for the default mode)
+     *         "BURST"} for burst mode,
+     *         {@link org.openhab.binding.homematic.internal.HomematicBindingConstants#RX_WAKEUP_MODE "WAKEUP"} for
+     *         wakeup mode, or null for the default mode)
      */
     protected String getRxModeForDatapointTransmission(String datapointName, Object currentValue, Object newValue) {
         return null;

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/handler/SimplePortPool.java

@@ -22,7 +22,7 @@ import java.util.List;
  * @author Gerhard Riegler - Initial contribution
  */
 public class SimplePortPool {
-    private static int START_PORT = 9125;
+    private static int startPort = 9125;
 
     private List<PortInfo> availablePorts = new ArrayList<>();
 
@@ -48,9 +48,9 @@ public class SimplePortPool {
         }
 
         PortInfo portInfo = new PortInfo();
-        while (isPortInUse(START_PORT++)) {
+        while (isPortInUse(startPort++)) {
         }
-        portInfo.port = START_PORT - 1;
+        portInfo.port = startPort - 1;
         portInfo.free = false;
         availablePorts.add(portInfo);
 

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/misc/MiscUtils.java

@@ -21,7 +21,7 @@ import org.slf4j.LoggerFactory;
  * @author Gerhard Riegler - Initial contribution
  */
 public class MiscUtils {
-    private static final Logger logger = LoggerFactory.getLogger(MiscUtils.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(MiscUtils.class);
 
     /**
      * Replaces invalid characters of the text to fit into an openHAB UID.
@@ -32,7 +32,7 @@ public class MiscUtils {
         }
         String cleanedText = text.replaceAll("[^A-Za-z0-9_-]", replaceChar);
         if (!text.equals(cleanedText)) {
-            logger.info("{} '{}' contains invalid characters, new {} '{}'", textType, text, textType, cleanedText);
+            LOGGER.info("{} '{}' contains invalid characters, new {} '{}'", textType, text, textType, cleanedText);
         }
         return cleanedText;
     }

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/internal/type/MetadataUtils.java

@@ -47,7 +47,7 @@ import org.slf4j.LoggerFactory;
  */
 
 public class MetadataUtils {
-    private static final Logger logger = LoggerFactory.getLogger(MetadataUtils.class);
+    private static final Logger LOGGER = LoggerFactory.getLogger(MetadataUtils.class);
     private static ResourceBundle descriptionsBundle;
     private static Map<String, String> descriptions = new HashMap<>();
     private static Map<String, Set<String>> standardDatapoints = new HashMap<>();
@@ -98,7 +98,7 @@ public class MetadataUtils {
                 }
             }
         } catch (IllegalStateException | IOException e) {
-            logger.warn("Can't load standard-datapoints.properties file!", e);
+            LOGGER.warn("Can't load standard-datapoints.properties file!", e);
         }
     }
 
@@ -112,7 +112,7 @@ public class MetadataUtils {
     public static <T> List<T> generateOptions(HmDatapoint dp, OptionsBuilder<T> optionsBuilder) {
         List<T> options = null;
         if (dp.getOptions() == null) {
-            logger.warn("No options for ENUM datapoint {}", dp);
+            LOGGER.warn("No options for ENUM datapoint {}", dp);
         } else {
             options = new ArrayList<>();
             for (int i = 0; i < dp.getOptions().length; i++) {
@@ -214,8 +214,8 @@ public class MetadataUtils {
             }
             sb.append(key).append(", ");
         }
-        if (logger.isTraceEnabled()) {
+        if (LOGGER.isTraceEnabled()) {
-            logger.trace("Description not found for: {}", sb.toString().substring(0, sb.length() - 2));
+            LOGGER.trace("Description not found for: {}", sb.toString().substring(0, sb.length() - 2));
         }
         return null;
     }
@@ -271,7 +271,7 @@ public class MetadataUtils {
         try {
             return new BigDecimal(number.toString());
         } catch (Exception ex) {
-            logger.warn("Can't create BigDecimal for number: {}", number.toString());
+            LOGGER.warn("Can't create BigDecimal for number: {}", number.toString());
             return null;
         }
     }

bundles/org.openhab.binding.homematic/src/main/java/org/openhab/binding/homematic/type/HomematicThingTypeExcluder.java

@@ -18,7 +18,6 @@ import java.util.Set;
 import org.openhab.core.thing.ThingTypeUID;
 import org.openhab.core.thing.type.ChannelGroupTypeUID;
 import org.openhab.core.thing.type.ChannelTypeUID;
-import org.openhab.core.thing.type.ThingType;
 
 /**
  * Allows external definition of
@@ -35,7 +34,7 @@ public interface HomematicThingTypeExcluder {
      * are henceforth responsible to ...
      * <li>provide any excluded ThingType on their own - e.g. in a custom
      * {@link org.openhab.core.thing.binding.ThingTypeProvider} or by
-     * defining those {@link ThingType}s in XML.</li>
+     * defining those {@link org.openhab.core.thing.type.ThingType}s in XML.</li>
      * <li>provide {@link org.openhab.core.thing.type.ChannelType}s
      * which are introduced by the provided thing-types</li>
      * <li>ensure compatibility and completeness of those thing-types (for any
@@ -55,7 +54,7 @@ public interface HomematicThingTypeExcluder {
      * {@link HomematicThingTypeExcluder} or not
      *
      * @param thingType a specific ThingType, specified by its {@link ThingTypeUID}
-     * @return <i>true</i>, if the {@link ThingType} is excluded
+     * @return <i>true</i>, if the {@link org.openhab.core.thing.type.ThingType} is excluded
      */
     boolean isThingTypeExcluded(ThingTypeUID thingType);
 

bundles/org.openhab.binding.homematic/src/test/java/org/openhab/binding/homematic/internal/converter/ConvertFromBindingTest.java

@@ -16,18 +16,17 @@ import static org.hamcrest.CoreMatchers.*;
 import static org.hamcrest.MatcherAssert.assertThat;
 
 import org.junit.jupiter.api.Test;
-import org.openhab.binding.homematic.internal.converter.type.AbstractTypeConverter;
 import org.openhab.binding.homematic.internal.model.HmDatapoint;
 import org.openhab.core.library.types.DecimalType;
 import org.openhab.core.library.types.QuantityType;
 import org.openhab.core.library.unit.ImperialUnits;
+import org.openhab.core.library.unit.SIUnits;
 import org.openhab.core.library.unit.Units;
 import org.openhab.core.types.State;
 
-import tech.units.indriya.unit.UnitDimension;
-
 /**
- * Tests for {@link AbstractTypeConverter#convertFromBinding(HmDatapoint)}.
+ * Tests for
+ * {@link org.openhab.binding.homematic.internal.converter.type.AbstractTypeConverter#convertFromBinding(HmDatapoint)}.
  *
  * @author Michael Reitler - Initial Contribution
  *
@@ -75,20 +74,19 @@ public class ConvertFromBindingTest extends BaseConverterTest {
         floatQuantityDp.setUnit("°C");
         convertedState = temperatureConverter.convertFromBinding(floatQuantityDp);
         assertThat(convertedState, instanceOf(QuantityType.class));
-        assertThat(((QuantityType<?>) convertedState).getDimension(), is(UnitDimension.TEMPERATURE));
+        assertThat(((QuantityType<?>) convertedState).getDimension(), is(equalTo(SIUnits.CELSIUS.getDimension())));
         assertThat(((QuantityType<?>) convertedState).doubleValue(), is(10.5));
         assertThat(((QuantityType<?>) convertedState).toUnit(ImperialUnits.FAHRENHEIT).doubleValue(), is(50.9));
 
         floatQuantityDp.setUnit("°C");
-        assertThat(((QuantityType<?>) convertedState).getDimension(), is(UnitDimension.TEMPERATURE));
+        assertThat(((QuantityType<?>) convertedState).getDimension(), is(equalTo(SIUnits.CELSIUS.getDimension())));
         assertThat(((QuantityType<?>) convertedState).doubleValue(), is(10.5));
 
         integerQuantityDp.setValue(50000);
         integerQuantityDp.setUnit("mHz");
         convertedState = frequencyConverter.convertFromBinding(integerQuantityDp);
         assertThat(convertedState, instanceOf(QuantityType.class));
-        assertThat(((QuantityType<?>) convertedState).getDimension(),
+        assertThat(((QuantityType<?>) convertedState).getDimension(), is(equalTo(Units.HERTZ.getDimension())));
-                is(UnitDimension.NONE.divide(UnitDimension.TIME)));
         assertThat(((QuantityType<?>) convertedState).intValue(), is(50000));
         assertThat(((QuantityType<?>) convertedState).toUnit(Units.HERTZ).intValue(), is(50));
 
@@ -96,7 +94,7 @@ public class ConvertFromBindingTest extends BaseConverterTest {
         floatQuantityDp.setUnit("100%");
         convertedState = timeConverter.convertFromBinding(floatQuantityDp);
         assertThat(convertedState, instanceOf(QuantityType.class));
-        assertThat(((QuantityType<?>) convertedState).getDimension(), is(UnitDimension.NONE));
+        assertThat(((QuantityType<?>) convertedState).getDimension(), is(equalTo(Units.ONE.getDimension())));
         assertThat(((QuantityType<?>) convertedState).doubleValue(), is(70.0));
         assertThat(((QuantityType<?>) convertedState).getUnit(), is(Units.PERCENT));
         assertThat(((QuantityType<?>) convertedState).toUnit(Units.ONE).doubleValue(), is(0.7));

bundles/org.openhab.binding.homematic/src/test/java/org/openhab/binding/homematic/internal/converter/ConvertToBindingTest.java

@@ -17,15 +17,14 @@ import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import org.junit.jupiter.api.Test;
-import org.openhab.binding.homematic.internal.converter.type.AbstractTypeConverter;
 import org.openhab.binding.homematic.internal.converter.type.DecimalTypeConverter;
 import org.openhab.binding.homematic.internal.converter.type.QuantityTypeConverter;
-import org.openhab.binding.homematic.internal.model.HmDatapoint;
 import org.openhab.core.library.types.DecimalType;
 import org.openhab.core.library.types.QuantityType;
 
 /**
- * Tests for {@link AbstractTypeConverter#convertToBinding(org.openhab.core.types.Type, HmDatapoint)}.
+ * Tests for
+ * {@link org.openhab.binding.homematic.internal.converter.type.AbstractTypeConverter#convertToBinding(org.openhab.core.types.Type, HmDatapoint)}.
  *
  * @author Michael Reitler - Initial Contribution
  *