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FXRate

This post-processor provides the current FX exchange rate related to the current location.

import com.activeviam.accelerator.common.postprocessor.fxconversion.impl.FXRate;

// ...
injectAll(ICustomParametersAware.class, (pivot, properties, ppPluginKey) -> (location, cache) -> List.of());
injectAll(IFXRatesAware.class, new FxRates("EUR"));

// ...
CopperMeasure fx = FXRate.measure(
                getAsOfDateLevel(),
                getCurrencyLevel(),
                getDisplayCurrencyLevel())
        .withFormatter("DOUBLE[#,##0.00;-#,##0.00]")
        .withinFolder("FX Rate")
        .as("Delta FX Rate")
        .publish(context);

The post-processor uses two beans:

ICustomParameters (optional) provides extra leaves to the IFXRates method calls (see Bean services for post-processors).
IFXRates provides the FX rate service used by the post-processor to retrieve the FX rate itself.

If the display currency level is not set, the post-processor will use the IReferenceCurrency context value to retrieve it.

Here are the parameters of the measure function:

Parameters	Type	Mandatory	Usage
asOfDateLevel	LevelIdentifier	X	The date level of the exchange rate to retrieve.
currencyLevel	LevelIdentifier	X	The source currency level.
referenceCcyLvl	LevelIdentifier		The destination currency level, if not set, the post-processor will use the `IReferenceCurrency` context value.
dateInfo	IDateShift		Date shift used to retrieve, for instance, the previous day rate.
preferredCurrency	String		Fallback display currency when no `referenceCcyLvl` and no `IReferenceCurrency` context values are set.

Real time handling

To handle continuous query updates, a continuous query handler is set. By default, the continuous query handlers are set to STORED,STORE_TICK[FXRates], which means that the metric is updated on any location change and on any FXRates store updates.

You can change this default setup using the following functions:

Function	Description
`withContinuousQueryHandlers(String... handlers)`	Completely changes the used handlers.
`withStoreTick(String storeName)`	Changes the store triggering the updates.