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• MessageReadEventFactory.java

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com.github.messenger4j.webhook.factory.MessageReadEventFactory Maven / Gradle / Ivy

package com.github.messenger4j.webhook.factory;

import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_ID;
import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_READ;
import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_RECIPIENT;
import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_SENDER;
import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_TIMESTAMP;
import static com.github.messenger4j.internal.gson.GsonUtil.Constants.PROP_WATERMARK;
import static com.github.messenger4j.internal.gson.GsonUtil.getPropertyAsInstant;
import static com.github.messenger4j.internal.gson.GsonUtil.getPropertyAsString;
import static com.github.messenger4j.internal.gson.GsonUtil.hasProperty;

import com.github.messenger4j.webhook.event.MessageReadEvent;
import com.google.gson.JsonObject;
import java.time.Instant;

/**
 * @author Max Grabenhorst
 * @since 1.0.0
 */
final class MessageReadEventFactory implements BaseEventFactory {

  @Override
  public boolean isResponsible(JsonObject messagingEvent) {
    return hasProperty(messagingEvent, PROP_READ);
  }

  @Override
  public MessageReadEvent createEventFromJson(JsonObject messagingEvent) {
    final String senderId =
        getPropertyAsString(messagingEvent, PROP_SENDER, PROP_ID)
            .orElseThrow(IllegalArgumentException::new);
    final String recipientId =
        getPropertyAsString(messagingEvent, PROP_RECIPIENT, PROP_ID)
            .orElseThrow(IllegalArgumentException::new);
    final Instant timestamp =
        getPropertyAsInstant(messagingEvent, PROP_TIMESTAMP)
            .orElseThrow(IllegalArgumentException::new);
    final Instant watermark =
        getPropertyAsInstant(messagingEvent, PROP_READ, PROP_WATERMARK)
            .orElseThrow(IllegalArgumentException::new);

    return new MessageReadEvent(senderId, recipientId, timestamp, watermark);
  }
}