in src/main/java/com/googlesource/gerrit/plugins/kafka/config/KafkaProperties.java [40:48]
public KafkaProperties(PluginConfigFactory configFactory, @PluginName String pluginName) {
super();
setDefaults();
PluginConfig fromGerritConfig = configFactory.getFromGerritConfig(pluginName);
topic = fromGerritConfig.getString("topic", "gerrit");
sendAsync = fromGerritConfig.getBoolean("sendAsync", true);
applyConfig(fromGerritConfig);
initDockerizedKafkaServer();
}