134 lines
4.7 KiB
Java
134 lines
4.7 KiB
Java
package it.tdlight.reactiveapi;
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import io.atomix.cluster.messaging.ClusterEventService;
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import io.atomix.core.Atomix;
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import it.tdlight.jni.TdApi;
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import it.tdlight.reactiveapi.Event.ClientBoundEvent;
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import it.tdlight.reactiveapi.Event.OnBotLoginCodeRequested;
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import it.tdlight.reactiveapi.Event.OnOtherDeviceLoginRequested;
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import it.tdlight.reactiveapi.Event.OnPasswordRequested;
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import it.tdlight.reactiveapi.Event.OnUpdateData;
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import it.tdlight.reactiveapi.Event.OnUpdateError;
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import it.tdlight.reactiveapi.Event.OnUserLoginCodeRequested;
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import it.tdlight.reactiveapi.Event.Request;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.DataInputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.time.Duration;
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import java.time.Instant;
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import java.util.ArrayList;
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import java.util.List;
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import org.apache.commons.lang3.SerializationException;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.core.scheduler.Schedulers;
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public class LiveAtomixReactiveApiClient implements ReactiveApiClient {
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private final ClusterEventService eventService;
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private final long liveId;
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private final long userId;
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private final Flux<ClientBoundEvent> clientBoundEvents;
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LiveAtomixReactiveApiClient(Atomix atomix, KafkaConsumer kafkaConsumer, long liveId, long userId) {
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this.eventService = atomix.getEventService();
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this.liveId = liveId;
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this.userId = userId;
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this.clientBoundEvents = kafkaConsumer.consumeMessages(kafkaConsumer.newRandomGroupId(), true, userId, liveId).share();
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}
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@Override
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public Flux<ClientBoundEvent> clientBoundEvents() {
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return clientBoundEvents;
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}
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@Override
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public <T extends TdApi.Object> Mono<T> request(TdApi.Function<T> request, Instant timeout) {
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return Mono
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.fromCompletionStage(() -> eventService.send("session-" + liveId + "-requests",
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new Request<>(liveId, request, timeout),
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LiveAtomixReactiveApiClient::serializeRequest,
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LiveAtomixReactiveApiClient::deserializeResponse,
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Duration.between(Instant.now(), timeout)
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))
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.subscribeOn(Schedulers.boundedElastic())
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.handle((item, sink) -> {
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if (item instanceof TdApi.Error error) {
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sink.error(new TdError(error.code, error.message));
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} else {
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//noinspection unchecked
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sink.next((T) item);
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}
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});
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}
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@Override
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public long getUserId() {
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return userId;
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}
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static TdApi.Object deserializeResponse(byte[] bytes) {
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try {
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return TdApi.Deserializer.deserialize(new DataInputStream(new ByteArrayInputStream(bytes)));
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} catch (IOException ex) {
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throw new SerializationException(ex);
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}
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}
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static byte[] serializeRequest(Request<?> request) {
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try (var byteArrayOutputStream = new ByteArrayOutputStream()) {
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try (var dataOutputStream = new DataOutputStream(byteArrayOutputStream)) {
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dataOutputStream.writeLong(request.liveId());
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dataOutputStream.writeLong(request.timeout().toEpochMilli());
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request.request().serialize(dataOutputStream);
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dataOutputStream.flush();
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return byteArrayOutputStream.toByteArray();
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}
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} catch (UnsupportedOperationException | IOException ex) {
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throw new SerializationException(ex);
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}
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}
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static ClientBoundEvent deserializeEvent(byte[] bytes) {
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try (var byteArrayInputStream = new ByteArrayInputStream(bytes)) {
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try (var is = new DataInputStream(byteArrayInputStream)) {
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return deserializeEvent(is);
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}
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} catch (IOException ex) {
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throw new SerializationException(ex);
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}
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}
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static List<ClientBoundEvent> deserializeEvents(byte[] bytes) {
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try (var byteArrayInputStream = new ByteArrayInputStream(bytes)) {
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try (var is = new DataInputStream(byteArrayInputStream)) {
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var len = is.readInt();
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var result = new ArrayList<ClientBoundEvent>(len);
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for (int i = 0; i < len; i++) {
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result.add(deserializeEvent(is));
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}
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return result;
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}
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} catch (IOException ex) {
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throw new SerializationException(ex);
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}
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}
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static ClientBoundEvent deserializeEvent(DataInputStream is) throws IOException {
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var liveId = is.readLong();
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var userId = is.readLong();
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return switch (is.readByte()) {
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case 0x01 -> new OnUpdateData(liveId, userId, (TdApi.Update) TdApi.Deserializer.deserialize(is));
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case 0x02 -> new OnUpdateError(liveId, userId, (TdApi.Error) TdApi.Deserializer.deserialize(is));
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case 0x03 -> new OnUserLoginCodeRequested(liveId, userId, is.readLong());
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case 0x04 -> new OnBotLoginCodeRequested(liveId, userId, is.readUTF());
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case 0x05 -> new OnOtherDeviceLoginRequested(liveId, userId, is.readUTF());
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case 0x06 -> new OnPasswordRequested(liveId, userId, is.readUTF(), is.readBoolean(), is.readUTF());
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default -> throw new IllegalStateException("Unexpected value: " + is.readByte());
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};
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}
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}
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