public static void EnsureMetadataEntryIsValid(string metadataKey, string metadataValue, string version)
{
if (!MetadataEncoding.IsValidMetadataKey(metadataKey, version))
{
throw new MetadataFormatException(string.Format("The metadata key {0} is not valid for version '{1}'.", metadataKey, version));
}
if (!MetadataEncoding.IsValidMetadataValue(metadataValue, version))
{
throw new MetadataFormatException(string.Format("The metadata value {0} is not valid for version '{1}'.", metadataValue, version));
}
}
public static void WriteMetadataToXml(XmlWriter xmlWriter, NameValueCollection metadata, bool isWritingRootMetadataElementEvenIfMetadataIsEmpty, string version)
{
if (xmlWriter == null)
{
throw new ArgumentNullException("xmlWriter");
}
if (metadata == null || metadata.Count <= 0)
{
if (isWritingRootMetadataElementEvenIfMetadataIsEmpty)
{
xmlWriter.WriteStartElement("Metadata");
xmlWriter.WriteEndElement();
}
return;
}
xmlWriter.WriteStartElement("Metadata");
string[] allKeys = metadata.AllKeys;
for (int i = 0; i < (int)allKeys.Length; i++)
{
string str = allKeys[i];
string item = metadata[str];
if (!MetadataEncoding.IsValidMetadataKey(str, version))
{
xmlWriter.WriteElementString("x-ms-invalid-name", str);
}
else if (MetadataEncoding.IsValidMetadataValue(item, version))
{
xmlWriter.WriteElementString(str, metadata[str]);
}
else
{
xmlWriter.WriteElementString("x-ms-invalid-value", item);
}
}
xmlWriter.WriteEndElement();
}