54 lines
1.7 KiB
Java
54 lines
1.7 KiB
Java
package it.tdlight.reactiveapi;
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import static it.tdlight.reactiveapi.Event.SERIAL_VERSION;
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import it.tdlight.jni.TdApi;
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import it.tdlight.reactiveapi.Event.OnRequest;
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import it.tdlight.reactiveapi.Event.OnRequest.Request;
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import java.io.ByteArrayOutputStream;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.time.Instant;
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import java.time.temporal.ChronoUnit;
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import org.apache.kafka.common.errors.SerializationException;
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import org.apache.kafka.common.serialization.Serializer;
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public class TdlibRequestSerializer<T extends TdApi.Object> implements Serializer<OnRequest<T>> {
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private static final Instant INFINITE_TIMEOUT = Instant.now().plus(100_000, ChronoUnit.DAYS);
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@Override
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public byte[] serialize(String topic, OnRequest<T> data) {
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try {
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if (data == null) {
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return new byte[0];
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} else {
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try(var baos = new ByteArrayOutputStream()) {
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try (var daos = new DataOutputStream(baos)) {
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daos.writeLong(data.userId());
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daos.writeLong(data.clientId());
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daos.writeLong(data.requestId());
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daos.writeInt(SERIAL_VERSION);
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if (data instanceof OnRequest.Request<?> request) {
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if (request.timeout() == Instant.MAX || request.timeout().compareTo(INFINITE_TIMEOUT) >= 0) {
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daos.writeLong(-1);
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} else {
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daos.writeLong(request.timeout().toEpochMilli());
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}
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request.request().serialize(daos);
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} else if (data instanceof OnRequest.InvalidRequest<?>) {
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daos.writeLong(-2);
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} else {
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throw new SerializationException("Unknown request type: " + daos.getClass());
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}
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daos.flush();
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return baos.toByteArray();
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}
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}
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}
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} catch (IOException e) {
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throw new SerializationException("Failed to serialize TDLib object", e);
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}
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}
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}
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