public async Task ChangeFeedIteratorCore_ReadAll()
{
int totalCount = 0;
int firstRunTotal = 25;
int batchSize = 25;
await this.CreateRandomItems(this.LargerContainer, batchSize, randomPartitionKey : true);
ContainerCore itemsCore = this.LargerContainer;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
string continuation = null;
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
continuation = responseMessage.ContinuationToken;
}
}
Assert.AreEqual(firstRunTotal, totalCount);
int expectedFinalCount = 50;
// Insert another batch of 25 and use the last FeedToken from the first cycle
await this.CreateRandomItems(this.LargerContainer, batchSize, randomPartitionKey : true);
ChangeFeedIteratorCore setIteratorNew = itemsCore.GetChangeFeedStreamIterator(continuationToken: continuation, changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (setIteratorNew.HasMoreResults)
{
using (ResponseMessage responseMessage =
await setIteratorNew.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
}
}
Assert.AreEqual(expectedFinalCount, totalCount);
}
public async Task ChangeFeedIteratorCore_BreathFirst()
{
int expected = 500;
List <CompositeContinuationToken> previousToken = null;
await this.CreateRandomItems(this.LargerContainer, expected, randomPartitionKey : true);
ContainerCore itemsCore = this.LargerContainer;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime(), MaxItemCount = 1
}) as ChangeFeedIteratorCore;
while (true)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
Assert.IsTrue(FeedRangeCompositeContinuation.TryParse(responseMessage.ContinuationToken, out FeedRangeContinuation continuation));
FeedRangeCompositeContinuation compositeContinuation = continuation as FeedRangeCompositeContinuation;
List <CompositeContinuationToken> deserializedToken = compositeContinuation.CompositeContinuationTokens.ToList();
if (previousToken != null)
{
// Verify that the token, even though it yielded results, it moved to a new range
Assert.AreNotEqual(previousToken[0].Range.Min, deserializedToken[0].Range.Min);
Assert.AreNotEqual(previousToken[0].Range.Max, deserializedToken[0].Range.Max);
break;
}
previousToken = deserializedToken;
}
}
}
public async Task ChangeFeedIteratorCore_EmptyBeginning()
{
int totalCount = 0;
int expectedDocuments = 5;
bool createdDocuments = false;
ContainerCore itemsCore = this.Container;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator() as ChangeFeedIteratorCore;
while (feedIterator.HasMoreResults ||
(createdDocuments && totalCount == 0))
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
else
{
if (!createdDocuments)
{
await this.CreateRandomItems(this.Container, expectedDocuments, randomPartitionKey : true);
createdDocuments = true;
}
}
}
}
Assert.AreEqual(expectedDocuments, totalCount);
}
public async Task ChangeFeedIteratorCore_WithMaxItemCount()
{
await this.CreateRandomItems(this.Container, 2, randomPartitionKey : true);
ContainerCore itemsCore = this.Container;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
MaxItemCount = 1, StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
if (response.Count > 0)
{
Assert.AreEqual(1, response.Count);
return;
}
}
}
}
Assert.Fail("Found no batch with size 1");
}
public async Task ChangeFeedIteratorCore_StartTime()
{
int totalCount = 0;
int batchSize = 25;
await this.CreateRandomItems(this.Container, batchSize, randomPartitionKey : true);
await Task.Delay(1000);
DateTime now = DateTime.UtcNow;
await Task.Delay(1000);
await this.CreateRandomItems(this.Container, batchSize, randomPartitionKey : true);
ContainerCore itemsCore = this.Container;
FeedIterator feedIterator = itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = now
});
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
}
}
}
Assert.AreEqual(totalCount, batchSize);
}
//[Timeout(30000)]
public async Task ChangeFeedIteratorCore_NoFetchNext()
{
int pkRangesCount = (await this.LargerContainer.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.LargerContainer.LinkUri)).Count;
int expected = 25;
int iterations = 0;
await this.CreateRandomItems(this.LargerContainer, expected, randomPartitionKey : true);
ContainerCore itemsCore = this.LargerContainer;
FeedToken feedToken = null;
int count = 0;
while (true)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
};
ChangeFeedIteratorCore feedIterator = feedToken == null?itemsCore.GetChangeFeedStreamIterator(changeFeedRequestOptions : requestOptions) as ChangeFeedIteratorCore
: itemsCore.GetChangeFeedStreamIterator(feedToken, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
feedToken = feedIterator.FeedToken;
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
count += response.Count;
}
}
if (count.Equals(expected))
{
break;
}
if (iterations++ > pkRangesCount)
{
Assert.Fail("Feed does not contain all elements even after looping through PK ranges. Either the continuation is not moving forward or there is some state problem.");
}
}
}
public async Task ChangeFeedIteratorCore_PartitionKeyRangeId_ReadAll()
{
int totalDocuments = 200;
await this.CreateRandomItems(this.LargerContainer, totalDocuments, randomPartitionKey : true);
DocumentFeedResponse <Documents.PartitionKeyRange> ranges = await this.LargerContainer.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.LargerContainer.LinkUri);
List <FeedToken> tokens = new List <FeedToken>(ranges.Count);
foreach (Documents.PartitionKeyRange range in ranges)
{
tokens.Add(new FeedTokenPartitionKeyRange(range.Id));
}
ContainerCore itemsCore = this.LargerContainer;
List <Task <int> > tasks = tokens.Select(token => Task.Run(async() =>
{
int count = 0;
ChangeFeedIteratorCore iteratorForToken =
itemsCore.GetChangeFeedStreamIterator(token, changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (iteratorForToken.HasMoreResults)
{
using (ResponseMessage responseMessage =
await iteratorForToken.ReadNextAsync(this.cancellationToken))
{
if (responseMessage.Content != null)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
count += response.Count;
}
}
}
return(count);
})).ToList();
await Task.WhenAll(tasks);
int documentsRead = 0;
foreach (Task <int> task in tasks)
{
documentsRead += task.Result;
}
Assert.AreEqual(totalDocuments, documentsRead);
}
public async Task GetFeedRangesAsync_AllowsParallelProcessing()
{
int pkRangesCount = (await this.LargerContainer.ClientContext.DocumentClient.ReadPartitionKeyRangeFeedAsync(this.LargerContainer.LinkUri)).Count;
ContainerCore itemsCore = this.LargerContainer;
IEnumerable <FeedRange> tokens = await itemsCore.GetFeedRangesAsync();
Assert.IsTrue(pkRangesCount > 1, "Should have created a multi partition container.");
Assert.AreEqual(pkRangesCount, tokens.Count());
int totalDocuments = 200;
await this.CreateRandomItems(this.LargerContainer, totalDocuments, randomPartitionKey : true);
List <Task <int> > tasks = tokens.Select(token => Task.Run(async() =>
{
int count = 0;
ChangeFeedIteratorCore iteratorForToken =
itemsCore.GetChangeFeedStreamIterator(token, changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue
}) as ChangeFeedIteratorCore;
while (true)
{
using (ResponseMessage responseMessage =
await iteratorForToken.ReadNextAsync(this.cancellationToken))
{
if (!responseMessage.IsSuccessStatusCode)
{
break;
}
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
count += response.Count;
}
}
return(count);
})).ToList();
await Task.WhenAll(tasks);
int documentsRead = 0;
foreach (Task <int> task in tasks)
{
documentsRead += task.Result;
}
Assert.AreEqual(totalDocuments, documentsRead);
}
public async Task ChangeFeed_FeedRange_FromV2SDK()
{
ContainerResponse largerContainer = await this.database.CreateContainerAsync(
new ContainerProperties(id : Guid.NewGuid().ToString(), partitionKeyPath : "/status"),
throughput : 20000,
cancellationToken : this.cancellationToken);
ContainerCore container = (ContainerInlineCore)largerContainer;
int expected = 100;
int count = 0;
await this.CreateRandomItems(container, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await container.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
IEnumerable <string> pkRangeIds = await container.GetPartitionKeyRangesAsync(feedRange);
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime(), MaxItemCount = 1
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(feedRange: feedRange, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
// Construct the continuation's range, using PKRangeId + ETag
List <dynamic> ct = new List <dynamic>()
{
new { min = string.Empty, max = string.Empty, token = firstResponse.Headers.ETag }
};
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new { V = 0, PKRangeId = pkRangeIds.First(), Continuation = ct };
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
MaxItemCount = 100
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(continuationToken: continuation, changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
}
}
Assert.AreEqual(expected, count);
}
public async Task ChangeFeed_FeedRange_FromV0Token()
{
ContainerResponse largerContainer = await this.database.CreateContainerAsync(
new ContainerProperties(id : Guid.NewGuid().ToString(), partitionKeyPath : "/status"),
throughput : 20000,
cancellationToken : this.cancellationToken);
ContainerCore container = (ContainerInlineCore)largerContainer;
int expected = 100;
int count = 0;
await this.CreateRandomItems(container, expected, randomPartitionKey : true);
IReadOnlyList <FeedRange> feedRanges = await container.GetFeedRangesAsync();
List <string> continuations = new List <string>();
// First do one request to construct the old model information based on Etag
foreach (FeedRange feedRange in feedRanges)
{
IEnumerable <string> pkRangeIds = await container.GetPartitionKeyRangesAsync(feedRange);
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 1
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.Beginning(feedRange),
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
FeedRangeEpk FeedRangeEpk = feedRange as FeedRangeEpk;
// Construct the continuation's range, using PKRangeId + ETag
List <dynamic> ct = new List <dynamic>()
{
new
{
min = FeedRangeEpk.Range.Min,
max = FeedRangeEpk.Range.Max,
token = (string)null
}
};
// Extract Etag and manually construct the continuation
dynamic oldContinuation = new
{
V = 0,
Rid = await container.GetRIDAsync(this.cancellationToken),
Continuation = ct
};
continuations.Add(JsonConvert.SerializeObject(oldContinuation));
}
// Now start the new iterators with the constructed continuations from migration
foreach (string continuation in continuations)
{
ChangeFeedRequestOptions requestOptions = new ChangeFeedRequestOptions()
{
PageSizeHint = 100,
EmitOldContinuationToken = true,
};
ChangeFeedIteratorCore feedIterator = container.GetChangeFeedStreamIterator(
changeFeedStartFrom: ChangeFeedStartFrom.ContinuationToken(continuation),
changeFeedRequestOptions: requestOptions) as ChangeFeedIteratorCore;
ResponseMessage firstResponse = await feedIterator.ReadNextAsync();
if (firstResponse.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(firstResponse.Content).Data;
count += response.Count;
string migratedContinuation = firstResponse.ContinuationToken;
Assert.IsTrue(FeedRangeContinuation.TryParse(migratedContinuation, out FeedRangeContinuation feedRangeContinuation));
Assert.IsTrue(feedRangeContinuation.FeedRange is FeedRangeEpk);
}
}
Assert.AreEqual(expected, count);
}
public async Task ChangeFeedIteratorCore_PartitionKey_ReadAll()
{
int totalCount = 0;
int firstRunTotal = 25;
int batchSize = 25;
string pkToRead = "pkToRead";
string otherPK = "otherPK";
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(pkToRead));
}
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(otherPK));
}
ContainerCore itemsCore = this.Container;
ChangeFeedIteratorCore feedIterator = itemsCore.GetChangeFeedStreamIterator(new PartitionKey(pkToRead), changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (feedIterator.HasMoreResults)
{
using (ResponseMessage responseMessage =
await feedIterator.ReadNextAsync(this.cancellationToken))
{
Assert.IsNotNull(feedIterator.FeedToken);
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.status);
}
}
}
}
Assert.AreEqual(firstRunTotal, totalCount);
int expectedFinalCount = 50;
// Insert another batch of 25 and use the last FeedToken from the first cycle
for (int i = 0; i < batchSize; i++)
{
await this.Container.CreateItemAsync(this.CreateRandomToDoActivity(pkToRead));
}
ChangeFeedIteratorCore setIteratorNew = itemsCore.GetChangeFeedStreamIterator(feedToken: feedIterator.FeedToken, changeFeedRequestOptions: new ChangeFeedRequestOptions()
{
StartTime = DateTime.MinValue.ToUniversalTime()
}) as ChangeFeedIteratorCore;
while (setIteratorNew.HasMoreResults)
{
using (ResponseMessage responseMessage =
await setIteratorNew.ReadNextAsync(this.cancellationToken))
{
Assert.IsNotNull(setIteratorNew.FeedToken);
if (responseMessage.IsSuccessStatusCode)
{
Collection <ToDoActivity> response = TestCommon.SerializerCore.FromStream <CosmosFeedResponseUtil <ToDoActivity> >(responseMessage.Content).Data;
totalCount += response.Count;
foreach (ToDoActivity toDoActivity in response)
{
Assert.AreEqual(pkToRead, toDoActivity.status);
}
}
}
}
Assert.AreEqual(expectedFinalCount, totalCount);
}