/// <summary>
/// Gets the metadata header
/// </summary>
/// <param name="blob"></param>
/// <returns></returns>
private HeaderDefinitionMetadata GetHeaderDefinitionMetadata(WrappedPageBlob blob, int index)
{
string keyToUse = null;
if (index == 0)
{
keyToUse = _primaryHeaderDefinitionKey;
}
else if (index == 1)
{
keyToUse = _secondaryHeaderDefinitionKey;
}
else if (index == 2)
{
keyToUse = _terciaryHeaderDefintionKey;
}
else
{
throw new ArgumentException("value must be 0, 1, or 2 for primary, secondary, or terciary respectively.", "index");
}
HeaderDefinitionMetadata headerDefinition = null;
string serializedHeaderDefinition;
if (blob.Metadata.TryGetValue(keyToUse, out serializedHeaderDefinition))
{
headerDefinition = HeaderDefinitionMetadata.FromRaw(Convert.FromBase64String(serializedHeaderDefinition));
}
return(headerDefinition);
}
/// <summary>
/// Gets the metadata header
/// </summary>
/// <param name="blob"></param>
/// <returns></returns>
private HeaderDefinitionMetadata GetHeaderDefinitionMetadata(WrappedPageBlob blob, bool useFallback = false)
{
var keyToUse = useFallback ? _fallbackHeaderDefinitionKey : _primaryHeaderDefinitionKey;
HeaderDefinitionMetadata headerDefinition;
string serializedHeaderDefinition;
if (blob.Metadata.TryGetValue(keyToUse, out serializedHeaderDefinition))
{
headerDefinition = HeaderDefinitionMetadata.FromRaw(Convert.FromBase64String(serializedHeaderDefinition));
}
else
{
headerDefinition = new HeaderDefinitionMetadata();
}
return(headerDefinition);
}
