public void FeedRangeCompositeContinuation_TryParse()
{
const string containerRid = "containerRid";
List <Documents.Routing.Range <string> > keyRanges = new List <Documents.Routing.Range <string> >()
{
new Documents.Routing.Range <string>("A", "B", true, false),
new Documents.Routing.Range <string>("D", "E", true, false),
};
FeedRangeInternal feedRangeInternal = new FeedRangeEPK(new Documents.Routing.Range <string>("A", "E", true, false));
FeedRangeCompositeContinuation token = new FeedRangeCompositeContinuation(containerRid, feedRangeInternal, keyRanges);
Assert.IsTrue(FeedRangeContinuation.TryParse(token.ToString(), out _));
Assert.IsFalse(FeedRangeContinuation.TryParse("whatever", out _));
}
private void FeedRange_PartitionKey_Validate(PartitionKey partitionKey)
{
string continuationToken = "TBD";
string containerRid = Guid.NewGuid().ToString();
FeedRangePartitionKey feedTokenPartitionKey = new FeedRangePartitionKey(partitionKey);
FeedRangeCompositeContinuation feedRangeSimpleContinuation = new FeedRangeCompositeContinuation(containerRid, feedTokenPartitionKey, new List <Documents.Routing.Range <string> >()
{
Documents.Routing.Range <string> .GetEmptyRange("AA")
}, continuationToken);
string serialized = feedRangeSimpleContinuation.ToString();
Assert.IsTrue(FeedRangeContinuation.TryParse(serialized, out FeedRangeContinuation deserialized));
FeedRangeCompositeContinuation deserializedContinuation = deserialized as FeedRangeCompositeContinuation;
FeedRangePartitionKey deserializedFeedRange = deserializedContinuation.FeedRange as FeedRangePartitionKey;
Assert.AreEqual(feedTokenPartitionKey.PartitionKey.ToJsonString(), deserializedFeedRange.PartitionKey.ToJsonString());
Assert.AreEqual(continuationToken, deserializedContinuation.GetContinuation());
}
public async Task FeedRange_EPK_Serialization()
{
string continuation = "TBD";
string containerRid = Guid.NewGuid().ToString();
List <FeedRange> ranges = (await this.Container.GetFeedRangesAsync()).ToList();
List <string> serializations = new List <string>();
List <FeedRangeCompositeContinuation> tokens = new List <FeedRangeCompositeContinuation>();
foreach (FeedRange range in ranges)
{
FeedRangeEpk feedRangeEPK = range as FeedRangeEpk;
FeedRangeCompositeContinuation feedRangeCompositeContinuation = new FeedRangeCompositeContinuation(containerRid, feedRangeEPK, new List <Documents.Routing.Range <string> >()
{
feedRangeEPK.Range
}, continuation);
tokens.Add(feedRangeCompositeContinuation);
serializations.Add(feedRangeCompositeContinuation.ToString());
}
List <FeedRangeContinuation> deserialized = new List <FeedRangeContinuation>();
foreach (string serialized in serializations)
{
Assert.IsTrue(FeedRangeContinuation.TryParse(serialized, out FeedRangeContinuation token));
deserialized.Add(token);
}
Assert.AreEqual(tokens.Count, deserialized.Count);
for (int i = 0; i < tokens.Count; i++)
{
FeedRangeCompositeContinuation originalToken = tokens[i] as FeedRangeCompositeContinuation;
FeedRangeCompositeContinuation deserializedToken = deserialized[i] as FeedRangeCompositeContinuation;
Assert.AreEqual(originalToken.GetContinuation(), deserializedToken.GetContinuation());
Assert.AreEqual(originalToken.ContainerRid, deserializedToken.ContainerRid);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Count, deserializedToken.CompositeContinuationTokens.Count);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Peek().Token, deserializedToken.CompositeContinuationTokens.Peek().Token);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Peek().Range.Min, deserializedToken.CompositeContinuationTokens.Peek().Range.Min);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Peek().Range.Max, deserializedToken.CompositeContinuationTokens.Peek().Range.Max);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Peek().Range.IsMinInclusive, deserializedToken.CompositeContinuationTokens.Peek().Range.IsMinInclusive);
Assert.AreEqual(originalToken.CompositeContinuationTokens.Peek().Range.IsMaxInclusive, deserializedToken.CompositeContinuationTokens.Peek().Range.IsMaxInclusive);
}
}
public async Task FeedRange_PKRangeId_Serialization()
{
string continuationToken = "TBD";
string containerRid = Guid.NewGuid().ToString();
DocumentFeedResponse <Documents.PartitionKeyRange> ranges = await this.Container.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.Container.LinkUri);
Documents.PartitionKeyRange oneRange = ranges.First();
FeedRangePartitionKeyRange original = new FeedRangePartitionKeyRange(oneRange.Id);
FeedRangeCompositeContinuation feedRangeSimpleContinuation = new FeedRangeCompositeContinuation(containerRid, original, new List <Documents.Routing.Range <string> >()
{
oneRange.ToRange()
}, continuationToken);
string serialized = feedRangeSimpleContinuation.ToString();
Assert.IsTrue(FeedRangeContinuation.TryParse(serialized, out FeedRangeContinuation feedRangeContinuation));
FeedRangeCompositeContinuation deserialized = feedRangeContinuation as FeedRangeCompositeContinuation;
FeedRangePartitionKeyRange deserializedFeedRange = deserialized.FeedRange as FeedRangePartitionKeyRange;
Assert.IsNotNull(deserialized, "Error deserializing to FeedRangePartitionKeyRange");
Assert.AreEqual(original.PartitionKeyRangeId, deserializedFeedRange.PartitionKeyRangeId);
Assert.AreEqual(continuationToken, deserialized.GetContinuation());
}
public void ReadFeedIteratorCore_Create_WithFeedContinuation()
{
string continuation = Guid.NewGuid().ToString();
FeedRangeEPK feedRangeEPK = FeedRangeEPK.ForFullRange();
FeedRangeCompositeContinuation feedRangeSimpleContinuation = new FeedRangeCompositeContinuation(Guid.NewGuid().ToString(), feedRangeEPK, new List <Documents.Routing.Range <string> >()
{
feedRangeEPK.Range
}, continuation);
FeedRangeIteratorCore feedTokenIterator = FeedRangeIteratorCore.Create(Mock.Of <ContainerInternal>(), null, feedRangeSimpleContinuation.ToString(), null);
FeedRangeEPK defaultRange = feedTokenIterator.FeedRangeInternal as FeedRangeEPK;
Assert.AreEqual(FeedRangeEPK.ForFullRange().Range.Min, defaultRange.Range.Min);
Assert.AreEqual(FeedRangeEPK.ForFullRange().Range.Max, defaultRange.Range.Max);
Assert.IsNotNull(feedTokenIterator.FeedRangeContinuation);
Assert.AreEqual(continuation, feedTokenIterator.FeedRangeContinuation.GetContinuation());
}
public override async Task <ResponseMessage> ReadNextAsync(
ITrace trace,
CancellationToken cancellationToken = default)
{
if (trace == null)
{
throw new ArgumentNullException(nameof(trace));
}
cancellationToken.ThrowIfCancellationRequested();
if (!this.hasMoreResults)
{
throw new InvalidOperationException("Should not be calling FeedIterator that does not have any more results");
}
if (this.monadicEnumerator.Failed)
{
this.hasMoreResults = false;
CosmosException cosmosException = ExceptionToCosmosException.CreateFromException(this.monadicEnumerator.Exception);
return(new ResponseMessage(
statusCode: System.Net.HttpStatusCode.BadRequest,
requestMessage: null,
headers: cosmosException.Headers,
cosmosException: cosmosException,
trace: trace));
}
CrossPartitionReadFeedAsyncEnumerator enumerator = this.monadicEnumerator.Result;
TryCatch <CrossFeedRangePage <Pagination.ReadFeedPage, ReadFeedState> > monadicPage;
try
{
if (!await enumerator.MoveNextAsync(trace))
{
throw new InvalidOperationException("Should not be calling enumerator that does not have any more results");
}
monadicPage = enumerator.Current;
}
catch (Exception ex)
{
monadicPage = TryCatch <CrossFeedRangePage <Pagination.ReadFeedPage, ReadFeedState> > .FromException(ex);
}
if (monadicPage.Failed)
{
CosmosException cosmosException = ExceptionToCosmosException.CreateFromException(monadicPage.Exception);
if (!IsRetriableException(cosmosException))
{
this.hasMoreResults = false;
}
return(new ResponseMessage(
statusCode: cosmosException.StatusCode,
requestMessage: null,
headers: cosmosException.Headers,
cosmosException: cosmosException,
trace: trace));
}
CrossFeedRangePage <Pagination.ReadFeedPage, ReadFeedState> crossFeedRangePage = monadicPage.Result;
if (crossFeedRangePage.State == default)
{
this.hasMoreResults = false;
}
// Make the continuation token match the older format:
string continuationToken;
if (crossFeedRangePage.State != null)
{
List <CompositeContinuationToken> compositeContinuationTokens = new List <CompositeContinuationToken>();
CrossFeedRangeState <ReadFeedState> crossFeedRangeState = crossFeedRangePage.State;
for (int i = 0; i < crossFeedRangeState.Value.Length; i++)
{
FeedRangeState <ReadFeedState> feedRangeState = crossFeedRangeState.Value.Span[i];
FeedRangeEpk feedRange;
if (feedRangeState.FeedRange is FeedRangeEpk feedRangeEpk)
{
feedRange = feedRangeEpk;
}
else
{
feedRange = FeedRangeEpk.FullRange;
}
ReadFeedState readFeedState = feedRangeState.State;
CompositeContinuationToken compositeContinuationToken = new CompositeContinuationToken()
{
Range = feedRange.Range,
Token = readFeedState is ReadFeedBeginningState ? null : ((ReadFeedContinuationState)readFeedState).ContinuationToken.ToString(),
};
compositeContinuationTokens.Add(compositeContinuationToken);
}
FeedRangeInternal outerFeedRange;
if ((this.queryRequestOptions != null) && this.queryRequestOptions.PartitionKey.HasValue)
{
outerFeedRange = new FeedRangePartitionKey(this.queryRequestOptions.PartitionKey.Value);
}
else if ((this.queryRequestOptions != null) && (this.queryRequestOptions.FeedRange != null))
{
outerFeedRange = (FeedRangeInternal)this.queryRequestOptions.FeedRange;
}
else
{
outerFeedRange = FeedRangeEpk.FullRange;
}
FeedRangeCompositeContinuation feedRangeCompositeContinuation = new FeedRangeCompositeContinuation(
containerRid: string.Empty,
feedRange: outerFeedRange,
compositeContinuationTokens);
continuationToken = feedRangeCompositeContinuation.ToString();
}
else
{
continuationToken = null;
}
Pagination.ReadFeedPage page = crossFeedRangePage.Page;
Headers headers = new Headers()
{
RequestCharge = page.RequestCharge,
ActivityId = page.ActivityId,
ContinuationToken = continuationToken,
};
foreach (KeyValuePair <string, string> kvp in page.AdditionalHeaders)
{
headers[kvp.Key] = kvp.Value;
}
return(new ResponseMessage(
statusCode: System.Net.HttpStatusCode.OK,
requestMessage: default,
public override async Task <ResponseMessage> ReadNextAsync(CancellationToken cancellationToken = default)
{
cancellationToken.ThrowIfCancellationRequested();
TryCatch <CrossPartitionChangeFeedAsyncEnumerator> monadicEnumerator = await this.lazyMonadicEnumerator.GetValueAsync(cancellationToken);
if (monadicEnumerator.Failed)
{
Exception createException = monadicEnumerator.Exception;
CosmosException cosmosException = ExceptionToCosmosException.CreateFromException(createException);
return(new ResponseMessage(
cosmosException.StatusCode,
requestMessage: null,
headers: cosmosException.Headers,
cosmosException: cosmosException,
diagnostics: new CosmosDiagnosticsContextCore()));
}
CrossPartitionChangeFeedAsyncEnumerator enumerator = monadicEnumerator.Result;
if (!await enumerator.MoveNextAsync())
{
throw new InvalidOperationException("ChangeFeed enumerator should always have a next continuation");
}
if (enumerator.Current.Failed)
{
CosmosException cosmosException = ExceptionToCosmosException.CreateFromException(enumerator.Current.Exception);
if (!IsRetriableException(cosmosException))
{
this.hasMoreResults = false;
}
return(new ResponseMessage(
cosmosException.StatusCode,
requestMessage: null,
headers: cosmosException.Headers,
cosmosException: cosmosException,
diagnostics: new CosmosDiagnosticsContextCore()));
}
CrossFeedRangePage <Pagination.ChangeFeedPage, ChangeFeedState> crossFeedRangePage = enumerator.Current.Result;
Pagination.ChangeFeedPage changeFeedPage = crossFeedRangePage.Page;
ResponseMessage responseMessage;
if (changeFeedPage is Pagination.ChangeFeedSuccessPage changeFeedSuccessPage)
{
responseMessage = new ResponseMessage(statusCode: System.Net.HttpStatusCode.OK)
{
Content = changeFeedSuccessPage.Content
};
}
else
{
responseMessage = new ResponseMessage(statusCode: System.Net.HttpStatusCode.NotModified);
}
CrossFeedRangeState <ChangeFeedState> crossFeedRangeState = crossFeedRangePage.State;
string continuationToken;
if (this.changeFeedRequestOptions.EmitOldContinuationToken)
{
List <CompositeContinuationToken> compositeContinuationTokens = new List <CompositeContinuationToken>();
for (int i = 0; i < crossFeedRangeState.Value.Length; i++)
{
FeedRangeState <ChangeFeedState> changeFeedFeedRangeState = crossFeedRangeState.Value.Span[i];
string token = changeFeedFeedRangeState.State is ChangeFeedStateContinuation changeFeedStateContinuation ? ((CosmosString)changeFeedStateContinuation.ContinuationToken).Value : null;
Documents.Routing.Range <string> range = ((FeedRangeEpk)changeFeedFeedRangeState.FeedRange).Range;
CompositeContinuationToken compositeContinuationToken = new CompositeContinuationToken()
{
Range = range,
Token = token,
};
compositeContinuationTokens.Add(compositeContinuationToken);
}
FeedRangeCompositeContinuation feedRangeCompositeContinuationToken = new FeedRangeCompositeContinuation(
await this.documentContainer.GetResourceIdentifierAsync(cancellationToken),
FeedRangeEpk.FullRange,
compositeContinuationTokens);
continuationToken = feedRangeCompositeContinuationToken.ToString();
}
else
{
ChangeFeedCrossFeedRangeState changeFeedCrossFeedRangeState = new ChangeFeedCrossFeedRangeState(crossFeedRangeState.Value);
continuationToken = VersionedAndRidCheckedCompositeToken.ToCosmosElement(
new VersionedAndRidCheckedCompositeToken(
VersionedAndRidCheckedCompositeToken.Version.V2,
changeFeedCrossFeedRangeState.ToCosmosElement(),
await this.documentContainer.GetResourceIdentifierAsync(cancellationToken))).ToString();
}
responseMessage.Headers.ContinuationToken = continuationToken;
responseMessage.Headers.RequestCharge = changeFeedPage.RequestCharge;
responseMessage.Headers.ActivityId = changeFeedPage.ActivityId;
return(responseMessage);
}