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Module contains external API of the evitaDB.
/*
*
* _ _ ____ ____
* _____ _(_) |_ __ _| _ \| __ )
* / _ \ \ / / | __/ _` | | | | _ \
* | __/\ V /| | || (_| | |_| | |_) |
* \___| \_/ |_|\__\__,_|____/|____/
*
* Copyright (c) 2023
*
* Licensed under the Business Source License, Version 1.1 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://github.com/FgForrest/evitaDB/blob/master/LICENSE
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.evitadb.api.proxy.impl.entityBuilder;
import io.evitadb.api.exception.EntityClassInvalidException;
import io.evitadb.api.proxy.impl.SealedEntityProxyState;
import io.evitadb.api.requestResponse.data.EntityEditor.EntityBuilder;
import io.evitadb.api.requestResponse.data.PriceContract;
import io.evitadb.api.requestResponse.data.PriceInnerRecordHandling;
import io.evitadb.api.requestResponse.data.annotation.Price;
import io.evitadb.api.requestResponse.data.annotation.RemoveWhenExists;
import io.evitadb.api.requestResponse.data.structure.InitialEntityBuilder;
import io.evitadb.api.requestResponse.data.structure.Price.PriceKey;
import io.evitadb.dataType.DateTimeRange;
import io.evitadb.dataType.EvitaDataTypes;
import io.evitadb.utils.NumberUtils;
import io.evitadb.utils.ReflectionLookup;
import one.edee.oss.proxycian.CurriedMethodContextInvocationHandler;
import one.edee.oss.proxycian.DirectMethodClassification;
import one.edee.oss.proxycian.utils.GenericsUtils;
import one.edee.oss.proxycian.utils.GenericsUtils.GenericBundle;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.Serializable;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.Array;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.lang.reflect.Parameter;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Currency;
import java.util.Iterator;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.function.BiPredicate;
import java.util.function.Function;
import java.util.stream.Collectors;
import static java.util.Optional.empty;
import static java.util.Optional.ofNullable;
/**
* Identifies methods that are used to set entity prices into an entity and provides their implementation.
*
* @author Jan Novotný ([email protected]), FG Forrest a.s. (c) 2023
*/
public class SetPriceMethodClassifier extends DirectMethodClassification {
/**
* We may reuse singleton instance since advice is stateless.
*/
public static final SetPriceMethodClassifier INSTANCE = new SetPriceMethodClassifier();
private static final MethodHandle PRICE_CONSTRUCTOR_HANDLE;
private static final MethodHandle PRICE_KEY_CONSTRUCTOR_HANDLE;
static {
try {
final Constructor priceConstructor = io.evitadb.api.requestResponse.data.structure.Price.class.getConstructor(
int.class, String.class, Currency.class, Integer.class,
BigDecimal.class, BigDecimal.class, BigDecimal.class,
DateTimeRange.class, boolean.class
);
PRICE_CONSTRUCTOR_HANDLE = MethodHandles.lookup().unreflectConstructor(priceConstructor);
final Constructor priceKey = PriceKey.class.getConstructor(
int.class, String.class, Currency.class
);
PRICE_KEY_CONSTRUCTOR_HANDLE = MethodHandles.lookup().unreflectConstructor(priceKey);
} catch (NoSuchMethodException | IllegalAccessException e) {
throw new IllegalStateException("Unable to initialize PRICE_CONSTRUCTOR_HANDLE!", e);
}
}
/**
* Creates invocation handler for setting price inner record handling.
*
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nonnull
private static CurriedMethodContextInvocationHandler setPriceInnerRecordHandling(
@Nonnull Class returnType,
@Nonnull Class proxyClass
) {
if (returnType.equals(proxyClass)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
theState.entityBuilder().setPriceInnerRecordHandling((PriceInnerRecordHandling) args[0]);
return proxy;
};
} else {
return (proxy, theMethod, args, theState, invokeSuper) -> {
theState.entityBuilder().setPriceInnerRecordHandling((PriceInnerRecordHandling) args[0]);
return null;
};
}
}
/**
* Creates invocation handler for setting price.
*
* @param method method that is being classified
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nullable
private static CurriedMethodContextInvocationHandler upsertPrice(
@Nonnull Method method,
@Nonnull Class returnType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
return createPriceExtractor(method, proxyClass, priceAnnotation)
.map(priceExtractor -> {
final CurriedMethodContextInvocationHandler invocationHandler;
if (returnType.equals(proxyClass)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPrice(priceExtractor, args, theState);
return proxy;
};
} else {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPrice(priceExtractor, args, theState);
return null;
};
}
return invocationHandler;
})
.orElse(null);
}
/**
* Upserts the price for the given method in the proxy class.
*
* @param priceExtractor function that converts method arguments to constructor call of
* {@link io.evitadb.api.requestResponse.data.structure.Price#Price(int, String, Currency, Integer, BigDecimal, BigDecimal, BigDecimal, DateTimeRange, boolean)}.
* @param args method arguments
* @param theState proxy state
*/
private static void upsertPrice(
@Nonnull Function priceExtractor,
@Nonnull Object[] args,
@Nonnull SealedEntityProxyState theState
) {
final PriceContract thePrice = priceExtractor.apply(args);
theState.entityBuilder().setPrice(thePrice);
}
/**
* Creates invocation handler for setting all prices of the entity.
*
* @param method method that is being classified
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nullable
private static CurriedMethodContextInvocationHandler setPricesAsArray(
@Nonnull Method method,
@Nonnull Class returnType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
if (!priceAnnotation.priceList().isBlank()) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to set all prices via. method `" + method.toGenericString() + "` because the prices may " +
"contain different price lists, but the price list is fixed via. annotation."
);
}
if (PriceContract.class.isAssignableFrom(method.getParameterTypes()[0].getComponentType())) {
if (returnType.equals(proxyClass)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPricesAsArray(args, theState);
return proxy;
};
} else {
return (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPricesAsArray(args, theState);
return null;
};
}
} else {
return null;
}
}
/**
* Upserts prices as an array into the entity.
*
* @param args an array of prices to be upserted
* @param theState the state of the sealed entity proxy
*/
private static void upsertPricesAsArray(
@Nonnull Object[] args,
@Nonnull SealedEntityProxyState theState
) {
final EntityBuilder entityBuilder = theState.entityBuilder();
final boolean initialBuilder = entityBuilder instanceof InitialEntityBuilder;
if (initialBuilder) {
entityBuilder.removeAllPrices();
}
final Object[] thePrices = (Object[]) args[0];
for (Object thePrice : thePrices) {
entityBuilder.setPrice((PriceContract) thePrice);
}
if (!initialBuilder) {
entityBuilder.removeAllNonTouchedPrices();
}
}
/**
* Creates invocation handler for setting all prices of the entity.
*
* @param method method that is being classified
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@SuppressWarnings("rawtypes")
@Nullable
private static CurriedMethodContextInvocationHandler setPricesAsCollection(
@Nonnull Method method,
@Nonnull Class returnType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
if (!priceAnnotation.priceList().isBlank()) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to set all prices via. method `" + method.toGenericString() + "` because the prices may " +
"contain different price lists, but the price list is fixed via. annotation."
);
}
final List genericType = GenericsUtils.getGenericType(proxyClass, method.getGenericParameterTypes()[0]);
if (!genericType.isEmpty() && PriceContract.class.isAssignableFrom(genericType.get(0).getResolvedType())) {
if (returnType.equals(proxyClass)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPricesAsCollection(args, theState);
return proxy;
};
} else {
return (proxy, theMethod, args, theState, invokeSuper) -> {
upsertPricesAsCollection(args, theState);
return null;
};
}
} else {
return null;
}
}
/**
* Upserts a collection of prices into the entity.
*
* @param args the method arguments
* @param theState the state of the sealed entity proxy
*/
private static void upsertPricesAsCollection(
@Nonnull Object[] args,
@Nonnull SealedEntityProxyState theState
) {
final EntityBuilder entityBuilder = theState.entityBuilder();
final boolean initialBuilder = entityBuilder instanceof InitialEntityBuilder;
if (initialBuilder) {
entityBuilder.removeAllPrices();
} else {
entityBuilder.removeAllNonTouchedPrices();
}
@SuppressWarnings("unchecked")
final Collection thePrices = (Collection) args[0];
for (PriceContract thePrice : thePrices) {
entityBuilder.setPrice(thePrice);
}
}
/**
* Creates function that converts method arguments to constructor call of
* {@link io.evitadb.api.requestResponse.data.structure.Price#Price(int, String, Currency, Integer, BigDecimal, BigDecimal, BigDecimal, DateTimeRange, boolean)}.
*
* @param method method that is being classified
* @param proxyClass proxy class
* @return function that converts method arguments to constructor call of the {@link io.evitadb.api.requestResponse.data.structure.Price} record
*/
@Nonnull
private static Optional> createPriceExtractor(
@Nonnull Method method,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
final String fixedPriceList = priceAnnotation.priceList();
final Function priceExtractor;
final int parameterCount = method.getParameterCount();
if (parameterCount == 1 && PriceContract.class.isAssignableFrom(method.getParameterTypes()[0])) {
priceExtractor = args -> (PriceContract) args[0];
} else if (parameterCount > 0) {
final List recognizedParameters = new ArrayList<>(9);
final Parameter[] methodParameters = method.getParameters();
for (int i = 0; i < methodParameters.length; i++) {
final Parameter parameter = methodParameters[i];
final int argumentIndex = i;
final int recognizedBefore = recognizedParameters.size();
if (NumberUtils.isIntConvertibleNumber(parameter.getType())) {
switch (parameter.getName()) {
case "id" ->
recognizedParameters.add(new RecognizedParameter(0, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class)));
case "priceId" ->
recognizedParameters.add(new RecognizedParameter(0, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class)));
case "innerRecordId" ->
recognizedParameters.add(new RecognizedParameter(3, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class)));
case "taxRate" ->
recognizedParameters.add(new RecognizedParameter(5, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], BigDecimal.class)));
case "priceWithoutTax" ->
recognizedParameters.add(new RecognizedParameter(4, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], BigDecimal.class)));
case "priceWithTax" ->
recognizedParameters.add(new RecognizedParameter(6, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], BigDecimal.class)));
}
} else if (boolean.class.equals(parameter.getType()) || Boolean.class.equals(parameter.getType())) {
recognizedParameters.add(new RecognizedParameter(8, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], boolean.class)));
} else if (String.class.isAssignableFrom(parameter.getType())) {
if (parameter.getName().equals("currency") || parameter.getName().equals("currencyCode")) {
recognizedParameters.add(new RecognizedParameter(2, args -> Currency.getInstance((String) args[argumentIndex])));
} else if (fixedPriceList.isBlank()) {
recognizedParameters.add(new RecognizedParameter(1, args -> args[argumentIndex]));
} else {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it contains " +
"price list, but the price list is fixed via. annotation."
);
}
} else if (BigDecimal.class.isAssignableFrom(parameter.getType())) {
switch (parameter.getName()) {
case "taxRate" ->
recognizedParameters.add(new RecognizedParameter(5, args -> args[argumentIndex]));
case "priceWithoutTax" ->
recognizedParameters.add(new RecognizedParameter(4, args -> args[argumentIndex]));
case "priceWithTax" ->
recognizedParameters.add(new RecognizedParameter(6, args -> args[argumentIndex]));
}
} else if (Currency.class.isAssignableFrom(parameter.getType())) {
recognizedParameters.add(new RecognizedParameter(2, args -> args[argumentIndex]));
} else if (DateTimeRange.class.isAssignableFrom(parameter.getType())) {
recognizedParameters.add(new RecognizedParameter(7, args -> args[argumentIndex]));
}
// when we don't recognize parameter, we must not match the method at all
if (recognizedParameters.size() == recognizedBefore) {
return Optional.empty();
}
}
final Set recognizedParameterLocations = recognizedParameters.stream()
.map(RecognizedParameter::position)
.collect(Collectors.toSet());
if (!recognizedParameterLocations.contains(0)) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain price id."
);
}
if (!recognizedParameterLocations.contains(1)) {
if (fixedPriceList.isBlank()) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain price list."
);
} else {
// by default price list is fixed
recognizedParameters.add(
new RecognizedParameter(1, args -> fixedPriceList)
);
}
}
if (!recognizedParameterLocations.contains(2)) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain currency."
);
}
if (!recognizedParameterLocations.contains(3)) {
// by default inner record id is NULL
recognizedParameters.add(
new RecognizedParameter(3, args -> null)
);
}
if (!recognizedParameterLocations.contains(4)) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain price without tax."
);
}
if (!recognizedParameterLocations.contains(5)) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain tax rate."
);
}
if (!recognizedParameterLocations.contains(6)) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. method `" + method.toGenericString() + "` because it doesn't contain price with tax."
);
}
if (!recognizedParameterLocations.contains(7)) {
// by default validity is NULL
recognizedParameters.add(
new RecognizedParameter(7, args -> null)
);
}
if (!recognizedParameterLocations.contains(8)) {
// by default prices are sellable
recognizedParameters.add(
new RecognizedParameter(8, args -> true)
);
}
final String methodSignature = method.toGenericString();
priceExtractor = args -> {
// translate method arguments to constructor arguments
final Object[] constructorArgs = new Object[9];
for (RecognizedParameter recognizedParameter : recognizedParameters) {
if (recognizedParameter != null) {
constructorArgs[recognizedParameter.position()] = recognizedParameter.argumentExtractor().apply(args);
}
}
try {
// and now create the Price
return (PriceContract) PRICE_CONSTRUCTOR_HANDLE.invokeWithArguments(constructorArgs);
} catch (Throwable e) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price record via. constructor via" +
" method `" + methodSignature + "` due to: " + e.getMessage()
);
}
};
} else {
priceExtractor = null;
}
return ofNullable(priceExtractor);
}
/**
* Creates invocation handler for removing existing price.
*
* @param method method that is being classified
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nullable
private static CurriedMethodContextInvocationHandler removePrice(
@Nonnull Method method,
@Nonnull Class returnType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
return createPriceKeyExtractor(method, proxyClass, priceAnnotation)
.map(priceKeyExtractor -> {
final CurriedMethodContextInvocationHandler invocationHandler;
if (returnType.equals(proxyClass)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
theState.entityBuilder().removePrice(thePriceKey);
return proxy;
};
} else if (Number.class.isAssignableFrom(returnType)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
final EntityBuilder entityBuilder = theState.entityBuilder();
final Optional price = entityBuilder.getPrice(thePriceKey);
if (price.isPresent()) {
entityBuilder.removePrice(thePriceKey);
//noinspection rawtypes,unchecked
return EvitaDataTypes.toTargetType(thePriceKey.priceId(), (Class) returnType);
} else {
return null;
}
};
} else if (Boolean.class.equals(returnType) || boolean.class.equals(returnType)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
final EntityBuilder entityBuilder = theState.entityBuilder();
final Optional price = entityBuilder.getPrice(thePriceKey);
if (price.isPresent()) {
entityBuilder.removePrice(thePriceKey);
return true;
} else {
return false;
}
};
} else if (PriceKey.class.equals(returnType)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
final EntityBuilder entityBuilder = theState.entityBuilder();
final Optional price = entityBuilder.getPrice(thePriceKey);
if (price.isPresent()) {
entityBuilder.removePrice(thePriceKey);
return thePriceKey;
} else {
return null;
}
};
} else if (PriceContract.class.isAssignableFrom(returnType)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
final EntityBuilder entityBuilder = theState.entityBuilder();
final Optional removedPrice = entityBuilder.getPrice(thePriceKey);
if (removedPrice.isPresent()) {
entityBuilder.removePrice(thePriceKey);
return removedPrice.get();
} else {
return null;
}
};
} else if (void.class.equals(returnType)) {
invocationHandler = (proxy, theMethod, args, theState, invokeSuper) -> {
final PriceKey thePriceKey = priceKeyExtractor.apply(args);
theState.entityBuilder().removePrice(thePriceKey);
return null;
};
} else {
invocationHandler = null;
}
return invocationHandler;
})
.orElse(null);
}
/**
* Creates invocation handler for removing existing price.
*
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nullable
private static CurriedMethodContextInvocationHandler removeAllPrices(
@Nonnull Class returnType,
@Nonnull Class itemType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
final String fixedPriceList = priceAnnotation.priceList();
if (fixedPriceList.isBlank()) {
if (returnType.equals(proxyClass)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
theState.entityBuilder().removeAllPrices();
return proxy;
};
} else if (Boolean.class.equals(returnType) || boolean.class.equals(returnType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection prices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
return !prices.isEmpty();
};
} else if (Collection.class.isAssignableFrom(returnType)) {
if (PriceContract.class.isAssignableFrom(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
return removedPrices;
};
} else if (NumberUtils.isIntConvertibleNumber(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
//noinspection rawtypes,unchecked
return removedPrices.stream()
.mapToInt(PriceContract::priceId)
.mapToObj(it -> EvitaDataTypes.toTargetType(it, (Class) itemType))
.toList();
};
} else if (PriceKey.class.equals(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
return removedPrices.stream().map(PriceContract::priceKey).toList();
};
} else {
return null;
}
} else if (returnType.isArray()) {
if (PriceContract.class.isAssignableFrom(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
return removedPrices.toArray(new PriceContract[0]);
};
} else if (NumberUtils.isIntConvertibleNumber(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
final Object result = Array.newInstance(itemType, removedPrices.size());
final Iterator it = removedPrices.iterator();
int i = 0;
while (it.hasNext()) {
final PriceContract price = it.next();
//noinspection DataFlowIssue,unchecked,rawtypes
Array.set(
result, i++,
EvitaDataTypes.toTargetType(price.priceId(), (Class) itemType)
);
}
return result;
};
} else if (PriceKey.class.equals(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final Collection removedPrices = entityBuilder.getPrices();
entityBuilder.removeAllPrices();
return removedPrices.stream().map(PriceContract::priceKey).toArray(PriceKey[]::new);
};
} else {
return null;
}
} else if (returnType.equals(void.class)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
theState.entityBuilder().removeAllPrices();
return null;
};
} else {
return null;
}
} else {
return removeAllMatchingPrices(
returnType, itemType, proxyClass,
(args, priceContract) -> fixedPriceList.equals(priceContract.priceList())
);
}
}
/**
* Creates invocation handler for removing multiple existing prices by matching their currency or price list.
*
* @param method method that is being classified
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @return invocation handler
*/
@Nullable
private static CurriedMethodContextInvocationHandler removeMultiplePrices(
@Nonnull Method method,
@Nonnull Class returnType,
@Nonnull Class itemType,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
final BiPredicate removalPredicate = createPredicateForArguments(method, priceAnnotation);
if (removalPredicate == null) {
return null;
} else {
return removeAllMatchingPrices(returnType, itemType, proxyClass, removalPredicate);
}
}
/**
* Returns invocation handler for removing multiple existing prices by matching the passed predicate.
*
* @param returnType method return type for recognizing builder pattern
* @param proxyClass proxy class
* @param removalPredicate the predicate that matches the prices to be removed
* @return invocation handler
*/
@Nonnull
private static CurriedMethodContextInvocationHandler removeAllMatchingPrices(
@Nonnull Class returnType,
@Nonnull Class itemType,
@Nonnull Class proxyClass,
@Nonnull BiPredicate removalPredicate
) {
if (returnType.equals(proxyClass)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.toList();
for (PriceContract priceContract : pricesToRemove) {
entityBuilder.removePrice(priceContract.priceKey());
}
return proxy;
};
} else if (Collection.class.isAssignableFrom(returnType)) {
if (PriceContract.class.isAssignableFrom(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.toList();
for (PriceContract priceContract : pricesToRemove) {
entityBuilder.removePrice(priceContract.priceKey());
}
return pricesToRemove;
};
} else if (NumberUtils.isIntConvertibleNumber(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.map(PriceContract::priceKey)
.toList();
for (PriceKey priceKey : pricesToRemove) {
entityBuilder.removePrice(priceKey);
}
//noinspection rawtypes,unchecked
return pricesToRemove.stream()
.map(it -> EvitaDataTypes.toTargetType(it.priceId(), (Class) itemType))
.toList();
};
} else if (PriceKey.class.equals(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.map(PriceContract::priceKey)
.toList();
for (PriceKey priceKey : pricesToRemove) {
entityBuilder.removePrice(priceKey);
}
return pricesToRemove;
};
} else {
return null;
}
} else if (returnType.isArray()) {
if (PriceContract.class.isAssignableFrom(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.toList();
for (PriceContract priceContract : pricesToRemove) {
entityBuilder.removePrice(priceContract.priceKey());
}
return pricesToRemove.toArray(new PriceContract[0]);
};
} else if (NumberUtils.isIntConvertibleNumber(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.map(PriceContract::priceKey)
.toList();
for (PriceKey priceKey : pricesToRemove) {
entityBuilder.removePrice(priceKey);
}
final Object result = Array.newInstance(itemType, pricesToRemove.size());
for (int i = 0; i < pricesToRemove.size(); i++) {
final PriceKey priceKey = pricesToRemove.get(i);
//noinspection DataFlowIssue,unchecked,rawtypes
Array.set(
result, i,
EvitaDataTypes.toTargetType(priceKey.priceId(), (Class) itemType)
);
}
return result;
};
} else if (PriceKey.class.equals(itemType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.map(PriceContract::priceKey)
.toList();
for (PriceKey priceKey : pricesToRemove) {
entityBuilder.removePrice(priceKey);
}
return pricesToRemove.toArray(new PriceKey[0]);
};
} else {
return null;
}
} else if (Boolean.class.equals(returnType) || boolean.class.equals(returnType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.toList();
for (PriceContract priceContract : pricesToRemove) {
entityBuilder.removePrice(priceContract.priceKey());
}
return !pricesToRemove.isEmpty();
};
} else if (void.class.equals(returnType)) {
return (proxy, theMethod, args, theState, invokeSuper) -> {
final EntityBuilder entityBuilder = theState.entityBuilder();
final List pricesToRemove = entityBuilder.getPrices()
.stream()
.filter(it -> removalPredicate.test(args, it))
.toList();
for (PriceContract priceContract : pricesToRemove) {
entityBuilder.removePrice(priceContract.priceKey());
}
return null;
};
} else {
return null;
}
}
/**
* Creates function that converts method arguments to constructor call of
* {@link PriceKey#PriceKey(int, String, Currency)}.
*
* @param method method that is being classified
* @param proxyClass proxy class
* @return function that converts method arguments to constructor call of the {@link PriceKey} record
*/
@Nonnull
private static Optional> createPriceKeyExtractor(
@Nonnull Method method,
@Nonnull Class proxyClass,
@Nonnull Price priceAnnotation
) {
final String fixedPriceList = priceAnnotation.priceList();
final Function priceKeyExtractor;
final int parameterCount = method.getParameterCount();
if (parameterCount == 1 && PriceKey.class.isAssignableFrom(method.getParameterTypes()[0])) {
priceKeyExtractor = args -> (PriceKey) args[0];
} else if (parameterCount == 1 && PriceContract.class.isAssignableFrom(method.getParameterTypes()[0])) {
priceKeyExtractor = args -> ((PriceContract) args[0]).priceKey();
} else if (parameterCount > 0) {
final List recognizedParameters = new ArrayList<>(9);
final Parameter[] methodParameters = method.getParameters();
for (int i = 0; i < methodParameters.length; i++) {
final Parameter parameter = methodParameters[i];
final int argumentIndex = i;
final int recognizedBefore = recognizedParameters.size();
if (NumberUtils.isIntConvertibleNumber(parameter.getType())) {
switch (parameter.getName()) {
case "id" ->
recognizedParameters.add(new RecognizedParameter(0, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class)));
case "priceId" ->
recognizedParameters.add(new RecognizedParameter(0, args -> EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class)));
}
} else if (String.class.isAssignableFrom(parameter.getType())) {
if (parameter.getName().equals("currency")) {
recognizedParameters.add(new RecognizedParameter(2, args -> Currency.getInstance((String) args[argumentIndex])));
} else if (fixedPriceList.isBlank()) {
recognizedParameters.add(new RecognizedParameter(1, args -> args[argumentIndex]));
} else {
throw new EntityClassInvalidException(
proxyClass,
"Unable to remove price via. method `" + method.toGenericString() + "` because it contains " +
"price list, but the price list is fixed via. annotation."
);
}
} else if (Currency.class.isAssignableFrom(parameter.getType())) {
recognizedParameters.add(new RecognizedParameter(2, args -> args[argumentIndex]));
}
// when we don't recognize parameter, we must not match the method at all
if (recognizedParameters.size() == recognizedBefore) {
return Optional.empty();
}
}
final Set recognizedParameterLocations = recognizedParameters.stream()
.map(RecognizedParameter::position)
.collect(Collectors.toSet());
if (!recognizedParameterLocations.contains(0)) {
return empty();
}
if (!recognizedParameterLocations.contains(1)) {
if (fixedPriceList.isBlank()) {
return empty();
} else {
// by default price list is fixed
recognizedParameters.add(
new RecognizedParameter(1, args -> fixedPriceList)
);
}
}
if (!recognizedParameterLocations.contains(2)) {
return empty();
}
final String methodSignature = method.toGenericString();
priceKeyExtractor = args -> {
// translate method arguments to constructor arguments
final Object[] constructorArgs = new Object[3];
for (RecognizedParameter recognizedParameter : recognizedParameters) {
if (recognizedParameter != null) {
constructorArgs[recognizedParameter.position()] = recognizedParameter.argumentExtractor().apply(args);
}
}
try {
// and now create the PriceKey
return (PriceKey) PRICE_KEY_CONSTRUCTOR_HANDLE.invokeWithArguments(constructorArgs);
} catch (Throwable e) {
throw new EntityClassInvalidException(
proxyClass,
"Unable to create price key record via. constructor via" +
" method `" + methodSignature + "` due to: " + e.getMessage()
);
}
};
} else {
priceKeyExtractor = null;
}
return ofNullable(priceKeyExtractor);
}
/**
* Creates function that extracts price list and / or currency from method arguments (or both).
*
* @param method method that is being classified
* @return function that extracts price list and / or currency from method arguments (or both)
*/
@Nullable
private static BiPredicate createPredicateForArguments(
@Nonnull Method method,
@Nonnull Price priceAnnotation
) {
final String fixedPriceList = priceAnnotation.priceList();
BiPredicate removalPredicate = fixedPriceList.isBlank() ?
(args, priceContract) -> true : (args, priceContract) -> priceContract.priceList().equals(fixedPriceList);
final Parameter[] methodParameters = method.getParameters();
for (int i = 0; i < methodParameters.length; i++) {
final Parameter parameter = methodParameters[i];
final int argumentIndex = i;
if (NumberUtils.isIntConvertibleNumber(parameter.getType())) {
switch (parameter.getName()) {
case "id" ->
removalPredicate = removalPredicate.and((args, price) -> price.priceId() == EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class));
case "priceId" ->
removalPredicate = removalPredicate.and((args, price) -> price.priceId() == EvitaDataTypes.toTargetType((Serializable) args[argumentIndex], int.class));
default -> {
return null;
}
}
} else if (String.class.isAssignableFrom(parameter.getType())) {
if (parameter.getName().equals("currency")) {
removalPredicate = removalPredicate.and((args, price) -> price.currency().equals(Currency.getInstance((String) args[argumentIndex])));
} else if (fixedPriceList.isBlank()) {
removalPredicate = removalPredicate.and((args, price) -> price.priceList().equals(args[argumentIndex]));
} else {
throw new EntityClassInvalidException(
method.getDeclaringClass(),
"Unable to remove price via. method `" + method.toGenericString() + "` because it contains " +
"price list, but the price list is fixed via. annotation."
);
}
} else if (Currency.class.isAssignableFrom(parameter.getType())) {
removalPredicate = removalPredicate.and((args, price) -> price.currency().equals(args[argumentIndex]));
} else {
return null;
}
}
return removalPredicate;
}
public SetPriceMethodClassifier() {
super(
"setPrice",
(method, proxyState) -> {
final int parameterCount = method.getParameterCount();
final Class returnType = method.getReturnType();
final Class proxyClass = proxyState.getProxyClass();
final Class[] parameterTypes = method.getParameterTypes();
// if the method has only one parameter, and it is PriceInnerRecordHandling, we handle it separately
if (parameterCount == 1 && PriceInnerRecordHandling.class.isAssignableFrom(parameterTypes[0])) {
return setPriceInnerRecordHandling(returnType, proxyClass);
}
// first we need to identify whether the method returns a parent entity
final ReflectionLookup reflectionLookup = proxyState.getReflectionLookup();
final Price price = reflectionLookup.getAnnotationInstanceForProperty(method, Price.class);
if (price == null || !proxyState.getEntitySchema().isWithPrice()) {
return null;
}
final Class itemType;
if (returnType.isArray()) {
itemType = returnType.getComponentType();
} else if (Collection.class.isAssignableFrom(returnType)) {
final List genericType = GenericsUtils.getGenericType(proxyClass, method.getGenericReturnType());
if (!genericType.isEmpty()) {
itemType = genericType.get(0).getResolvedType();
} else {
itemType = null;
}
} else {
itemType = null;
}
final boolean removePrice = method.isAnnotationPresent(RemoveWhenExists.class);
if (parameterCount == 0 && removePrice) {
return removeAllPrices(returnType, itemType, proxyClass, price);
} else if (parameterCount == 1 && !removePrice) {
if (parameterTypes[0].isArray()) {
return setPricesAsArray(method, returnType, proxyClass, price);
} else if (Collection.class.isAssignableFrom(parameterTypes[0])) {
return setPricesAsCollection(method, returnType, proxyClass, price);
} else {
return upsertPrice(method, returnType, proxyClass, price);
}
} else if (removePrice) {
return ofNullable(removePrice(method, returnType, proxyClass, price))
.orElseGet(() -> removeMultiplePrices(method, returnType, itemType, proxyClass, price));
} else {
return upsertPrice(method, returnType, proxyClass, price);
}
}
);
}
/**
* Wraps a recognized parameter in method signature
*
* @param position represents constructor argument position in {@link Price(int, String, Currency, Integer, BigDecimal, BigDecimal, BigDecimal, DateTimeRange, boolean)}
* @param argumentExtractor extracts the argument from method arguments
*/
private record RecognizedParameter(
int position,
@Nonnull Function argumentExtractor
) {
}
}