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Persist future prices (#15864) 

Resolves #15863

Signed-off-by: Jacob Laursen <jacob-github@vindvejr.dk>
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Jacob Laursen 2023-11-11 13:39:05 +01:00 committed by GitHub
parent 49b952b9a3
commit 50e1687472
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7
bundles/org.openhab.binding.energidataservice/README.md
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@ -75,6 +75,13 @@ To include VAT for items linked to the `Number` channels, the [VAT profile](http
This must be installed separately.
Once installed, simply select "Value-Added Tax" as Profile when linking an item.
#### Persisting Time Series
The binding offers support for persisting both historical and upcoming prices.
The recommended persistence strategy is `forecast`, as it ensures a clean history without redundancy.
Prices from the past 24 hours and all forthcoming prices will be stored.
Any changes that impact published prices (e.g. selecting or deselecting VAT Profile) will result in the replacement of persisted prices within this period.
#### Net Tariff
Discounts are automatically taken into account for channel `net-tariff` so that it represents the actual price.

48
bundles/org.openhab.binding.energidataservice/src/main/java/org/openhab/binding/energidataservice/internal/handler/EnergiDataServiceHandler.java
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@ -13,6 +13,7 @@
package org.openhab.binding.energidataservice.internal.handler;
import static org.openhab.binding.energidataservice.internal.EnergiDataServiceBindingConstants.*;
import static org.openhab.core.types.TimeSeries.Policy.REPLACE;
import java.math.BigDecimal;
import java.time.Duration;
@ -24,6 +25,7 @@ import java.time.temporal.ChronoUnit;
import java.util.Arrays;
import java.util.Collection;
import java.util.Currency;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
@ -65,6 +67,7 @@ import org.openhab.core.thing.binding.BaseThingHandler;
import org.openhab.core.thing.binding.ThingHandlerService;
import org.openhab.core.types.Command;
import org.openhab.core.types.RefreshType;
import org.openhab.core.types.TimeSeries;
import org.openhab.core.types.UnDefType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@ -180,6 +183,7 @@ public class EnergiDataServiceHandler extends BaseThingHandler {
updateStatus(ThingStatus.ONLINE);
updatePrices();
updateTimeSeries();
if (isLinked(CHANNEL_SPOT_PRICE) || isLinked(CHANNEL_HOURLY_PRICES)) {
if (cacheManager.getNumberOfFutureSpotPrices() < 13) {
@ -348,6 +352,50 @@ public class EnergiDataServiceHandler extends BaseThingHandler {
updateState(CHANNEL_HOURLY_PRICES, new StringType(gson.toJson(targetPrices)));
}
private void updateTimeSeries() {
TimeSeries spotPriceTimeSeries = new TimeSeries(REPLACE);
Map<DatahubTariff, TimeSeries> datahubTimeSeriesMap = new HashMap<>();
for (DatahubTariff datahubTariff : DatahubTariff.values()) {
datahubTimeSeriesMap.put(datahubTariff, new TimeSeries(REPLACE));
}
Map<Instant, BigDecimal> spotPriceMap = cacheManager.getSpotPrices();
List<Entry<Instant, BigDecimal>> spotPrices = spotPriceMap.entrySet().stream()
.sorted(Map.Entry.comparingByKey()).toList();
for (Entry<Instant, BigDecimal> spotPrice : spotPrices) {
Instant hourStart = spotPrice.getKey();
if (isLinked(CHANNEL_SPOT_PRICE)) {
spotPriceTimeSeries.add(hourStart, new DecimalType(spotPrice.getValue()));
}
for (Map.Entry<DatahubTariff, TimeSeries> entry : datahubTimeSeriesMap.entrySet()) {
DatahubTariff datahubTariff = entry.getKey();
String channelId = datahubTariff.getChannelId();
if (!isLinked(channelId)) {
continue;
}
BigDecimal tariff = cacheManager.getTariff(datahubTariff, hourStart);
if (tariff != null) {
TimeSeries timeSeries = entry.getValue();
timeSeries.add(hourStart, new DecimalType(tariff));
}
}
}
if (spotPriceTimeSeries.size() > 0) {
sendTimeSeries(CHANNEL_SPOT_PRICE, spotPriceTimeSeries);
}
for (Map.Entry<DatahubTariff, TimeSeries> entry : datahubTimeSeriesMap.entrySet()) {
DatahubTariff datahubTariff = entry.getKey();
String channelId = datahubTariff.getChannelId();
if (!isLinked(channelId)) {
continue;
}
TimeSeries timeSeries = entry.getValue();
if (timeSeries.size() > 0) {
sendTimeSeries(channelId, timeSeries);
}
}
}
/**
* Get the configured {@link Currency} for spot prices.
*