[plugwise] Fix 'power' channel not correctly updated with power produ…

…ction (openhab#11746)

This fixes the issue that the 'power' channel would not update with the correct state because the number of pulses in the PowerInformationResponseMessage is signed instead of unsigned.
When the binding detected these strange readings it would normally log: "Circle (...) is in a kind of error state ...".

Signed-off-by: Wouter Born <github@maindrain.net>

bundles/org.openhab.binding.plugwise/src/main/java/org/openhab/binding/plugwise/internal/protocol/PowerInformationResponseMessage.java

@@ -33,6 +33,7 @@ public class PowerInformationResponseMessage extends Message {
 
     private static final Pattern PAYLOAD_PATTERN = Pattern.compile("(\\w{16})(\\w{4})(\\w{4})(\\w{8})(\\w{8})(\\w{4})");
     private static final double NANOSECONDS_CORRECTION_DIVISOR = 0.000046875; // 46875 divided by nanos per second
+    private static final Duration ONE_HOUR = Duration.ofHours(1);
 
     private Energy oneSecond;
     private Energy eightSecond;
@@ -67,12 +68,12 @@ protected void parsePayload() {
             ZonedDateTime utcNow = ZonedDateTime.now(UTC);
             macAddress = new MACAddress(matcher.group(1));
             nanosCorrection = Math.round(Integer.parseInt(matcher.group(6), 16) / NANOSECONDS_CORRECTION_DIVISOR);
-            oneSecond = new Energy(utcNow, Integer.parseInt(matcher.group(2), 16),
+            oneSecond = new Energy(utcNow, (short) Integer.parseInt(matcher.group(2), 16),
                     Duration.ofSeconds(1, nanosCorrection));
-            eightSecond = new Energy(utcNow, Integer.parseInt(matcher.group(3), 16),
+            eightSecond = new Energy(utcNow, (short) Integer.parseInt(matcher.group(3), 16),
                     Duration.ofSeconds(8, nanosCorrection));
-            oneHourConsumed = new Energy(utcNow, Long.parseLong(matcher.group(4), 16), Duration.ofHours(1));
-            oneHourProduced = new Energy(utcNow, Long.parseLong(matcher.group(5), 16), Duration.ofHours(1));
+            oneHourConsumed = new Energy(utcNow, Long.parseLong(matcher.group(4), 16), ONE_HOUR);
+            oneHourProduced = new Energy(utcNow, Long.parseLong(matcher.group(5), 16), ONE_HOUR);
         } else {
             throw new PlugwisePayloadMismatchException(POWER_INFORMATION_RESPONSE, PAYLOAD_PATTERN, payload);
         }