How to use

addIfNotNull

method

in

com.amazonaws.services.s3.internal.XmlWriterUtils

  public byte[] convertToXmlByteArray(ObjectLockLegalHold legalHold) {
    XmlWriter writer = new XmlWriter();
    writer.start("LegalHold", "xmlns", Constants.XML_NAMESPACE);
    addIfNotNull(writer, "Status", legalHold.getStatus());
    writer.end();
    return writer.getBytes();
  }
}

public byte[] convertToXmlByteArray(ObjectLockConfiguration config) {
  XmlWriter writer = new XmlWriter();
  writer.start("ObjectLockConfiguration", "xmlns", Constants.XML_NAMESPACE);
  addIfNotNull(writer, "ObjectLockEnabled", config.getObjectLockEnabled());
  addRuleIfNotNull(writer, config.getRule());
  writer.end();
  return writer.getBytes();
}

  private static void writeDefaultRetention(XmlWriter writer, DefaultRetention retention) {
    if (retention == null) {
      return;
    }

    writer.start("DefaultRetention");
    addIfNotNull(writer, "Mode", retention.getMode());
    Integer days = retention.getDays();
    if (days != null) {
      writer.start("Days").value(Integer.toString(days)).end();
    }
    Integer years = retention.getYears();
    if (years != null) {
      writer.start("Years").value(Integer.toString(years)).end();
    }
    writer.end();
  }
}

public byte[] convertToXmlByteArray(ObjectLockRetention retention) {
  XmlWriter writer = new XmlWriter();
  writer.start("Retention", "xmlns", Constants.XML_NAMESPACE);
  addIfNotNull(writer, "Mode", retention.getMode());
  addDateIfNotNull(writer, "RetainUntilDate", retention.getRetainUntilDate());
  writer.end();
  return writer.getBytes();
}