77 lines
2.6 KiB
Java
77 lines
2.6 KiB
Java
package it.tdlight.reactiveapi;
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import static java.util.Objects.requireNonNullElse;
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import static reactor.core.publisher.Sinks.EmitFailureHandler.busyLooping;
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import it.tdlight.jni.TdApi;
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import it.tdlight.jni.TdApi.Object;
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import it.tdlight.reactiveapi.Event.ClientBoundEvent;
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import it.tdlight.reactiveapi.Event.OnRequest;
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import it.tdlight.reactiveapi.Event.OnResponse;
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import java.io.Closeable;
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import java.time.Duration;
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import java.util.concurrent.atomic.AtomicReference;
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import java.util.function.Function;
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import java.util.logging.Level;
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import reactor.core.Disposable;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.GroupedFlux;
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import reactor.core.publisher.SignalType;
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import reactor.core.publisher.Sinks;
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import reactor.core.publisher.Sinks.Many;
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import reactor.core.scheduler.Schedulers;
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import reactor.util.concurrent.Queues;
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public class KafkaSharedTdlibServers implements Closeable {
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private final KafkaTdlibServersChannels kafkaTdlibServersChannels;
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private final Disposable responsesSub;
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private final AtomicReference<Disposable> requestsSub = new AtomicReference<>();
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private final Many<OnResponse<TdApi.Object>> responses = Sinks.many().unicast().onBackpressureBuffer(
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Queues.<OnResponse<TdApi.Object>>get(65535).get());
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private final Flux<GroupedFlux<Long, Timestamped<OnRequest<Object>>>> requests;
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public KafkaSharedTdlibServers(KafkaTdlibServersChannels kafkaTdlibServersChannels) {
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this.kafkaTdlibServersChannels = kafkaTdlibServersChannels;
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this.responsesSub = kafkaTdlibServersChannels.response()
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.sendMessages(0L, responses.asFlux())
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.subscribeOn(Schedulers.parallel())
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.subscribe();
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this.requests = kafkaTdlibServersChannels.request()
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.consumeMessages("td-requests")
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.onBackpressureBuffer()
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.groupBy(k -> k.data().userId(), 1)
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.replay()
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.autoConnect(1, this.requestsSub::set);
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}
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public Flux<Timestamped<OnRequest<Object>>> requests(long userId) {
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return requests.filter(group -> group.key() == userId)
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.take(1, true)
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.singleOrEmpty()
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.flatMapMany(Function.identity())
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.log("req-" + userId, Level.FINE, SignalType.REQUEST, SignalType.ON_NEXT);
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}
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public Disposable events(Flux<ClientBoundEvent> eventFlux) {
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return kafkaTdlibServersChannels.events()
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.sendMessages(0L, eventFlux)
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.subscribeOn(Schedulers.parallel())
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.subscribe();
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}
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public Many<OnResponse<TdApi.Object>> responses() {
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return responses;
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}
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@Override
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public void close() {
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responsesSub.dispose();
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var requestsSub = this.requestsSub.get();
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if (requestsSub != null) {
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requestsSub.dispose();
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}
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kafkaTdlibServersChannels.close();
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}
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}
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