private void initializeSocketCreators(final DistributionConfig distributionConfig) {
    if (distributionConfig == null) {
      throw new GemFireConfigException(
          "SocketCreatorFactory requires a valid distribution config.");
    } else {
      this.distributionConfig = distributionConfig;
    }
  }
Here we parse the distribution distributionConfig and setup the required SocketCreators
geode-core/src/main/java/org/apache/geode/internal/net/SocketCreatorFactory.java