internal static PartitionKeyInternal ExtractPartitionKeyValue <T>(T data, PartitionKeyDefinition partitionKeyDefinition, Func <T, JToken> convertToJToken)
{
return(PartitionKeyInternal.FromObjectArray(
partitionKeyDefinition.Paths.Select(path =>
{
string[] parts = PathParser.GetPathParts(path);
Debug.Assert(parts.Length >= 1, "Partition key component definition path is invalid.");
JToken token = convertToJToken(data);
foreach (string part in parts)
{
if (token == null)
{
break;
}
token = token[part];
}
return token != null ? token.ToObject <object>() : Undefined.Value;
}).ToArray(),
false));
}
/// <summary>
/// Extracts effective <see cref="PartitionKeyInternal"/> from deserialized document.
/// </summary>
/// <remarks>
/// This code doesn't do any validation, as it assumes that IndexingPolicy is valid, as it is coming from the backend.
/// Expected format is "/prop1/prop2/?". No array expressions are expected.
/// </remarks>
/// <param name="document">Deserialized document to extract partition key value from.</param>
/// <param name="partitionKeyDefinition">Information about partition key.</param>
/// <returns>Instance of <see cref="PartitionKeyInternal"/>.</returns>
public static PartitionKeyInternal ExtractPartitionKeyValue(Document document, PartitionKeyDefinition partitionKeyDefinition)
{
if (partitionKeyDefinition == null || partitionKeyDefinition.Paths.Count == 0)
{
return(PartitionKeyInternal.Empty);
}
if (document.GetType().IsSubclassOf(typeof(Document)))
{
return(DocumentAnalyzer.ExtractPartitionKeyValue(document, partitionKeyDefinition, (doc) => JToken.FromObject(doc)));
}
else
{
return(PartitionKeyInternal.FromObjectArray(
partitionKeyDefinition.Paths.Select(path =>
{
string[] parts = PathParser.GetPathParts(path);
Debug.Assert(parts.Length >= 1, "Partition key component definition path is invalid.");
return document.GetValueByPath <object>(parts, Undefined.Value);
}).ToArray(),
false));
}
}