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package tools.refinery.store.model.internal;
import tools.refinery.store.adapter.AdapterList;
import tools.refinery.store.adapter.ModelAdapterBuilder;
import tools.refinery.store.adapter.ModelAdapterBuilderFactory;
import tools.refinery.store.adapter.ModelAdapterType;
import tools.refinery.store.map.VersionedMapStore;
import tools.refinery.store.map.VersionedMapStoreImpl;
import tools.refinery.store.model.ModelStore;
import tools.refinery.store.model.ModelStoreBuilder;
import tools.refinery.store.model.TupleHashProvider;
import tools.refinery.store.representation.AnySymbol;
import tools.refinery.store.representation.Symbol;
import tools.refinery.store.tuple.Tuple;
import java.util.*;
public class ModelStoreBuilderImpl implements ModelStoreBuilder {
private final Set<AnySymbol> allSymbols = new HashSet<>();
private final Map<SymbolEquivalenceClass<?>, List<AnySymbol>> equivalenceClasses = new HashMap<>();
private final AdapterList<ModelAdapterBuilder> adapters = new AdapterList<>();
@Override
public <T> ModelStoreBuilder symbol(Symbol<T> symbol) {
if (!allSymbols.add(symbol)) {
throw new IllegalArgumentException("Symbol %s already added".formatted(symbol));
}
var equivalenceClass = new SymbolEquivalenceClass<>(symbol);
var symbolsInEquivalenceClass = equivalenceClasses.computeIfAbsent(equivalenceClass,
ignored -> new ArrayList<>());
symbolsInEquivalenceClass.add(symbol);
return this;
}
@Override
public <T extends ModelAdapterBuilder> T with(ModelAdapterBuilderFactory<?, ?, T> adapterBuilderFactory) {
return adapters.<T>tryGet(adapterBuilderFactory, adapterBuilderFactory.getModelAdapterBuilderClass())
.orElseGet(() -> addAdapter(adapterBuilderFactory));
}
private <T extends ModelAdapterBuilder> T addAdapter(ModelAdapterBuilderFactory<?, ?, T> adapterBuilderFactory) {
for (var configuredAdapterType : adapters.getAdapterTypes()) {
var intersection = new HashSet<>(adapterBuilderFactory.getSupportedAdapterTypes());
intersection.retainAll(configuredAdapterType.getSupportedAdapterTypes());
if (!intersection.isEmpty()) {
if (configuredAdapterType.supports(adapterBuilderFactory)) {
// Impossible to end up here from <code>#with</code>, because we should have returned
// the existing adapter there instead of adding a new one.
throw new IllegalArgumentException(
"Cannot add %s, because it is already provided by configured adapter %s"
.formatted(adapterBuilderFactory, configuredAdapterType));
} else if (adapterBuilderFactory.supports(configuredAdapterType)) {
throw new IllegalArgumentException(
"Cannot add %s, because it provides already configured adapter %s"
.formatted(adapterBuilderFactory, configuredAdapterType));
} else {
throw new IllegalArgumentException(
"Cannot add %s, because configured adapter %s already provides %s"
.formatted(adapterBuilderFactory, configuredAdapterType, intersection));
}
}
}
var newAdapter = adapterBuilderFactory.createBuilder(this);
adapters.add(adapterBuilderFactory, newAdapter);
return newAdapter;
}
@Override
public <T extends ModelAdapterBuilder> Optional<T> tryGetAdapter(ModelAdapterType<?, ?, ? extends T> adapterType) {
return adapters.tryGet(adapterType, adapterType.getModelAdapterBuilderClass());
}
@Override
public <T extends ModelAdapterBuilder> T getAdapter(ModelAdapterType<?, ?, T> adapterType) {
return adapters.get(adapterType, adapterType.getModelAdapterBuilderClass());
}
@Override
public ModelStore build() {
var stores = new HashMap<AnySymbol, VersionedMapStore<Tuple, ?>>(allSymbols.size());
for (var entry : equivalenceClasses.entrySet()) {
createStores(stores, entry.getKey(), entry.getValue());
}
var modelStore = new ModelStoreImpl(stores, adapters.size());
for (int i = adapters.size() - 1; i >= 0; i--) {
adapters.get(i).configure();
}
for (var entry : adapters.withAdapterTypes()) {
var adapter = entry.adapter().createStoreAdapter(modelStore);
modelStore.addAdapter(entry.adapterType(), adapter);
}
return modelStore;
}
private <T> void createStores(Map<AnySymbol, VersionedMapStore<Tuple, ?>> stores,
SymbolEquivalenceClass<T> equivalenceClass, List<AnySymbol> symbols) {
int size = symbols.size();
var storeGroup = VersionedMapStoreImpl.createSharedVersionedMapStores(size, TupleHashProvider.INSTANCE,
equivalenceClass.defaultValue());
for (int i = 0; i < size; i++) {
stores.put(symbols.get(i), storeGroup.get(i));
}
}
}
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