2021-01-30 20:16:14 +01:00
|
|
|
package it.cavallium.dbengine.database.collections;
|
|
|
|
|
|
|
|
import it.cavallium.dbengine.client.CompositeSnapshot;
|
2021-02-02 15:36:11 +01:00
|
|
|
import it.cavallium.dbengine.database.collections.Joiner.ValueGetter;
|
|
|
|
import it.cavallium.dbengine.database.collections.JoinerBlocking.ValueGetterBlocking;
|
2021-01-30 20:16:14 +01:00
|
|
|
import java.util.HashMap;
|
|
|
|
import java.util.Map;
|
|
|
|
import java.util.Map.Entry;
|
2021-02-06 19:21:31 +01:00
|
|
|
import java.util.Optional;
|
2021-01-30 20:16:14 +01:00
|
|
|
import java.util.function.Function;
|
|
|
|
import org.jetbrains.annotations.Nullable;
|
|
|
|
import reactor.core.publisher.Flux;
|
|
|
|
import reactor.core.publisher.Mono;
|
|
|
|
|
|
|
|
@SuppressWarnings("unused")
|
2021-01-31 00:36:21 +01:00
|
|
|
public interface DatabaseStageMap<T, U, US extends DatabaseStage<U>> extends DatabaseStageEntry<Map<T, U>> {
|
2021-01-30 20:16:14 +01:00
|
|
|
|
|
|
|
Mono<US> at(@Nullable CompositeSnapshot snapshot, T key);
|
|
|
|
|
|
|
|
default Mono<U> getValue(@Nullable CompositeSnapshot snapshot, T key) {
|
|
|
|
return this.at(snapshot, key).flatMap(v -> v.get(snapshot));
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<U> getValueOrDefault(@Nullable CompositeSnapshot snapshot, T key, Mono<U> defaultValue) {
|
|
|
|
return getValue(snapshot, key).switchIfEmpty(defaultValue).single();
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> putValue(T key, U value) {
|
2021-02-02 15:36:11 +01:00
|
|
|
return at(null, key).single().flatMap(v -> v.set(value));
|
2021-01-30 20:16:14 +01:00
|
|
|
}
|
|
|
|
|
2021-02-06 19:21:31 +01:00
|
|
|
default Mono<Void> updateValue(T key, Function<Optional<U>, Optional<U>> updater) {
|
|
|
|
return at(null, key).single().flatMap(v -> v.update(updater));
|
|
|
|
}
|
|
|
|
|
2021-01-30 20:16:14 +01:00
|
|
|
default Mono<U> putValueAndGetPrevious(T key, U value) {
|
2021-02-02 00:09:46 +01:00
|
|
|
return at(null, key).single().flatMap(v -> v.setAndGetPrevious(value));
|
2021-01-30 20:16:14 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Boolean> putValueAndGetStatus(T key, U value) {
|
2021-02-02 15:36:11 +01:00
|
|
|
return at(null, key).single().flatMap(v -> v.setAndGetStatus(value));
|
2021-01-30 20:16:14 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> remove(T key) {
|
|
|
|
return removeAndGetStatus(key).then();
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<U> removeAndGetPrevious(T key) {
|
|
|
|
return at(null, key).flatMap(DatabaseStage::clearAndGetPrevious);
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Boolean> removeAndGetStatus(T key) {
|
|
|
|
return removeAndGetPrevious(key).map(o -> true).defaultIfEmpty(false);
|
|
|
|
}
|
|
|
|
|
|
|
|
default Flux<Entry<T, U>> getMulti(@Nullable CompositeSnapshot snapshot, Flux<T> keys) {
|
|
|
|
return keys.flatMap(key -> this.getValue(snapshot, key).map(value -> Map.entry(key, value)));
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> putMulti(Flux<Entry<T, U>> entries) {
|
|
|
|
return entries.flatMap(entry -> this.putValue(entry.getKey(), entry.getValue())).then();
|
|
|
|
}
|
|
|
|
|
|
|
|
Flux<Entry<T, US>> getAllStages(@Nullable CompositeSnapshot snapshot);
|
|
|
|
|
|
|
|
default Flux<Entry<T, U>> getAllValues(@Nullable CompositeSnapshot snapshot) {
|
|
|
|
return this
|
|
|
|
.getAllStages(null)
|
|
|
|
.flatMap(entry -> entry.getValue().get(null).map(value -> Map.entry(entry.getKey(), value)));
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> setAllValues(Flux<Entry<T, U>> entries) {
|
|
|
|
return setAllValuesAndGetPrevious(entries).then();
|
|
|
|
}
|
|
|
|
|
2021-01-31 15:47:48 +01:00
|
|
|
Flux<Entry<T, U>> setAllValuesAndGetPrevious(Flux<Entry<T, U>> entries);
|
2021-01-30 20:16:14 +01:00
|
|
|
|
|
|
|
default Mono<Void> clear() {
|
|
|
|
return setAllValues(Flux.empty());
|
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> replaceAllValues(boolean canKeysChange, Function<Entry<T, U>, Mono<Entry<T, U>>> entriesReplacer) {
|
2021-02-02 00:09:46 +01:00
|
|
|
return Mono.defer(() -> {
|
|
|
|
if (canKeysChange) {
|
|
|
|
return this.setAllValues(this.getAllValues(null).flatMap(entriesReplacer)).then();
|
|
|
|
} else {
|
|
|
|
return this
|
|
|
|
.getAllValues(null)
|
|
|
|
.flatMap(entriesReplacer)
|
|
|
|
.flatMap(replacedEntry -> this
|
|
|
|
.at(null, replacedEntry.getKey())
|
|
|
|
.map(entry -> entry.set(replacedEntry.getValue())))
|
|
|
|
.then();
|
|
|
|
}
|
|
|
|
});
|
2021-01-30 20:16:14 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
default Mono<Void> replaceAll(Function<Entry<T, US>, Mono<Void>> entriesReplacer) {
|
|
|
|
return this
|
|
|
|
.getAllStages(null)
|
|
|
|
.flatMap(entriesReplacer)
|
|
|
|
.then();
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
default Mono<Map<T, U>> setAndGetPrevious(Map<T, U> value) {
|
|
|
|
return this
|
|
|
|
.setAllValuesAndGetPrevious(Flux.fromIterable(value.entrySet()))
|
|
|
|
.collectMap(Entry::getKey, Entry::getValue, HashMap::new);
|
|
|
|
}
|
|
|
|
|
2021-02-06 19:21:31 +01:00
|
|
|
@Override
|
|
|
|
default Mono<Void> update(Function<Optional<Map<T, U>>, Optional<Map<T, U>>> updater) {
|
|
|
|
return this
|
|
|
|
.getAllValues(null)
|
|
|
|
.collectMap(Entry::getKey, Entry::getValue, HashMap::new)
|
|
|
|
.single()
|
|
|
|
.map(v -> v.isEmpty() ? Optional.<Map<T, U>>empty() : Optional.of(v))
|
|
|
|
.map(updater)
|
|
|
|
.filter(Optional::isPresent)
|
|
|
|
.map(Optional::get)
|
|
|
|
.flatMap(values -> this.setAllValues(Flux.fromIterable(values.entrySet())));
|
|
|
|
}
|
|
|
|
|
2021-01-30 20:16:14 +01:00
|
|
|
@Override
|
|
|
|
default Mono<Map<T, U>> clearAndGetPrevious() {
|
|
|
|
return this.setAndGetPrevious(Map.of());
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
default Mono<Map<T, U>> get(@Nullable CompositeSnapshot snapshot) {
|
|
|
|
return getAllValues(snapshot)
|
|
|
|
.collectMap(Entry::getKey, Entry::getValue, HashMap::new);
|
|
|
|
}
|
|
|
|
|
|
|
|
@Override
|
|
|
|
default Mono<Long> size(@Nullable CompositeSnapshot snapshot, boolean fast) {
|
|
|
|
return getAllStages(snapshot).count();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Value getter doesn't lock data. Please make sure to lock before getting data.
|
|
|
|
*/
|
|
|
|
default ValueGetterBlocking<T, U> getDbValueGetter() {
|
|
|
|
return k -> getValue(null, k).block();
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Value getter doesn't lock data. Please make sure to lock before getting data.
|
|
|
|
*/
|
|
|
|
default ValueGetter<T, U> getAsyncDbValueGetter() {
|
|
|
|
return k -> getValue(null, k);
|
|
|
|
}
|
|
|
|
}
|