public static bool TryParse(
string toStringValue,
out FeedToken parsedToken)
{
if (FeedTokenEPKRange.TryParseInstance(toStringValue, out parsedToken))
{
return(true);
}
if (FeedTokenPartitionKey.TryParseInstance(toStringValue, out parsedToken))
{
return(true);
}
if (FeedTokenPartitionKeyRange.TryParseInstance(toStringValue, out parsedToken))
{
return(true);
}
parsedToken = null;
return(false);
}
public override object ReadJson(
JsonReader reader,
Type objectType,
object existingValue,
JsonSerializer serializer)
{
if (reader.TokenType == JsonToken.Null)
{
return(null);
}
if (reader.TokenType != JsonToken.StartObject)
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
JObject jObject = JObject.Load(reader);
if (!jObject.TryGetValue(FeedTokenInternalConverter.TypePropertyName, out JToken typeJtoken) ||
!Enum.TryParse(typeJtoken.Value <int>().ToString(), ignoreCase: true, out FeedTokenType feedTokenType))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
switch (feedTokenType)
{
case FeedTokenType.EPKRange:
{
if (!jObject.TryGetValue(FeedTokenInternalConverter.RidPropertyName, out JToken ridJToken) ||
string.IsNullOrEmpty(ridJToken.Value <string>()))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
if (!jObject.TryGetValue(FeedTokenInternalConverter.ContinuationPropertyName, out JToken continuationJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
if (!jObject.TryGetValue(FeedTokenInternalConverter.RangePropertyName, out JToken rangeJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
List <CompositeContinuationToken> ranges = serializer.Deserialize <List <CompositeContinuationToken> >(continuationJToken.CreateReader());
Documents.Routing.Range <string> completeRange = serializer.Deserialize <Documents.Routing.Range <string> >(rangeJToken.CreateReader());
return(new FeedTokenEPKRange(ridJToken.Value <string>(), completeRange, ranges));
}
case FeedTokenType.PartitionKeyValue:
{
if (!jObject.TryGetValue(FeedTokenInternalConverter.ContinuationPropertyName, out JToken continuationJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
if (!jObject.TryGetValue(FeedTokenInternalConverter.PartitionKeyPropertyName, out JToken pkJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
if (!PartitionKey.TryParseJsonString(pkJToken.Value <string>(), out PartitionKey partitionKey))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
FeedTokenPartitionKey feedTokenPartitionKey = new FeedTokenPartitionKey(partitionKey);
feedTokenPartitionKey.UpdateContinuation(continuationJToken.Value <string>());
return(feedTokenPartitionKey);
}
case FeedTokenType.PartitionKeyRangeId:
{
if (!jObject.TryGetValue(FeedTokenInternalConverter.ContinuationPropertyName, out JToken continuationJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
if (!jObject.TryGetValue(FeedTokenInternalConverter.PartitionKeyRangeIdPropertyName, out JToken pkJToken))
{
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
FeedTokenPartitionKeyRange feedTokenPartitionKeyRange = new FeedTokenPartitionKeyRange(pkJToken.Value <string>());
feedTokenPartitionKeyRange.UpdateContinuation(continuationJToken.Value <string>());
return(feedTokenPartitionKeyRange);
}
}
throw new JsonSerializationException(ClientResources.FeedToken_UnknownFormat);
}
