public void EnumerateTransfersCanBeStopped()
{
var initialJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(null, false, false),
Stubs.Chunk2(null, false, false),
Stubs.Chunk3(null, false, false)
);
var factory = new Mock <IDs3ClientFactory>(MockBehavior.Strict);
factory
.Setup(f => f.GetClientForNodeId(It.IsAny <Guid?>()))
.Returns(new Mock <IDs3Client>(MockBehavior.Strict).Object);
var client = new Mock <IDs3Client>(MockBehavior.Strict);
client
.Setup(c => c.BuildFactory(It.IsAny <IEnumerable <Node> >()))
.Returns(factory.Object);
client
.Setup(c => c.GetAvailableJobChunks(AvailableChunks(Stubs.JobId)))
.Returns(GetAvailableJobChunksResponse.Success(
TimeSpan.FromMinutes(5),
Stubs.BuildJobResponse(Stubs.Chunk1(Stubs.NodeId1, true, true))
));
var transferItemSource = new ReadTransferItemSource(_ => {}, client.Object, initialJobResponse);
var readyToStop = new ManualResetEventSlim();
var task = Task.Run(() =>
{
readyToStop.Wait();
Thread.Sleep(130);
transferItemSource.Stop();
});
using (var transfers = transferItemSource.EnumerateAvailableTransfers().GetEnumerator())
{
for (int i = 0; i < 2; i++)
{
Assert.True(transfers.MoveNext());
}
readyToStop.Set();
var timer = Stopwatch.StartNew();
Assert.False(transfers.MoveNext());
timer.Stop();
Assert.GreaterOrEqual(timer.Elapsed, TimeSpan.FromMilliseconds(100));
}
task.Wait();
}
public void BasicReadTransfer()
{
var initialJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(null, false, false),
Stubs.Chunk2(null, false, false),
Stubs.Chunk3(null, false, false)
);
var availableJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(Stubs.NodeId2, true, true),
Stubs.Chunk2(Stubs.NodeId2, true, true),
Stubs.Chunk3(Stubs.NodeId1, true, true)
);
var node1Client = new Mock <IDs3Client>(MockBehavior.Strict);
SetupGetObject(node1Client, "hello", 0L, "ABCDefGHIJ");
SetupGetObject(node1Client, "bar", 35L, "zABCDEFGHIJ");
var node2Client = new Mock <IDs3Client>(MockBehavior.Strict);
SetupGetObject(node2Client, "bar", 0L, "0123456789abcde");
SetupGetObject(node2Client, "foo", 10L, "klmnopqrst");
SetupGetObject(node2Client, "foo", 0L, "abcdefghij");
SetupGetObject(node2Client, "bar", 15L, "fghijklmnopqrstuvwxy");
var clientFactory = new Mock <IDs3ClientFactory>(MockBehavior.Strict);
clientFactory
.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId1))
.Returns(node1Client.Object);
clientFactory
.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId2))
.Returns(node2Client.Object);
var client = new Mock <IDs3Client>(MockBehavior.Strict);
client
.Setup(c => c.BuildFactory(Stubs.Nodes))
.Returns(clientFactory.Object);
client
.Setup(c => c.BulkGet(ItIsBulkGetRequest(
Stubs.BucketName,
ChunkOrdering.None,
Stubs.ObjectNames,
Enumerable.Empty <Ds3PartialObject>()
)))
.Returns(initialJobResponse);
client
.Setup(c => c.GetAvailableJobChunks(ItIsGetAvailableJobChunksRequest(Stubs.JobId)))
.Returns(GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(1), availableJobResponse));
var job = new Ds3ClientHelpers(client.Object).StartReadJob(
Stubs.BucketName,
Stubs.ObjectNames.Select(name => new Ds3Object(name, null))
);
var dataTransfers = new ConcurrentQueue <long>();
var itemsCompleted = new ConcurrentQueue <string>();
job.DataTransferred += dataTransfers.Enqueue;
job.ItemCompleted += itemsCompleted.Enqueue;
var streams = new ConcurrentDictionary <string, MockStream>();
job.Transfer(key => streams.GetOrAdd(key, k => new MockStream()));
node1Client.VerifyAll();
node2Client.VerifyAll();
clientFactory.VerifyAll();
client.VerifyAll();
CollectionAssert.AreEqual(
new[]
{
new { Key = "bar", Value = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJ" },
new { Key = "foo", Value = "abcdefghijklmnopqrst" },
new { Key = "hello", Value = "ABCDefGHIJ" },
},
from item in streams
orderby item.Key
select new { item.Key, Value = _encoding.GetString(item.Value.Result) }
);
CollectionAssert.AreEquivalent(new[] { 15L, 20L, 11L, 10L, 10L, 10L }, dataTransfers);
CollectionAssert.AreEquivalent(Stubs.ObjectNames, itemsCompleted);
}
public void ReadTransferFailsUponTransferrerException()
{
var initialJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(null, false, false),
Stubs.Chunk2(null, false, false),
Stubs.Chunk3(null, false, false)
);
var availableJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk2(Stubs.NodeId2, true, true)
);
var node2Client = new Mock <IDs3Client>(MockBehavior.Strict);
SetupGetObject(node2Client, "foo", 0L, "abcdefghij");
node2Client
.Setup(c => c.GetObject(ItIsGetObjectRequest(
Stubs.BucketName,
"bar",
Stubs.JobId,
15L,
Enumerable.Empty <Range>()
)))
.Throws <NullReferenceException>();
var clientFactory = new Mock <IDs3ClientFactory>(MockBehavior.Strict);
clientFactory
.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId2))
.Returns(node2Client.Object);
var client = new Mock <IDs3Client>(MockBehavior.Strict);
client
.Setup(c => c.BuildFactory(Stubs.Nodes))
.Returns(clientFactory.Object);
client
.Setup(c => c.BulkGet(ItIsBulkGetRequest(
Stubs.BucketName,
ChunkOrdering.None,
Stubs.ObjectNames,
Enumerable.Empty <Ds3PartialObject>()
)))
.Returns(initialJobResponse);
client
.Setup(c => c.GetAvailableJobChunks(ItIsGetAvailableJobChunksRequest(Stubs.JobId)))
.Returns(GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(1), availableJobResponse));
var job = new Ds3ClientHelpers(client.Object).StartReadJob(
Stubs.BucketName,
Stubs.ObjectNames.Select(name => new Ds3Object(name, null))
);
try
{
job.Transfer(key => new MockStream());
Assert.Fail("Should have thrown an exception.");
}
catch (AggregateException e)
{
Assert.IsInstanceOf <NullReferenceException>(e.InnerException);
}
}
public void PartialReadTransfer()
{
var partialObjects = new[]
{
new Ds3PartialObject(Range.ByLength(0L, 4L), "foo"),
new Ds3PartialObject(Range.ByLength(6L, 10L), "foo"),
new Ds3PartialObject(Range.ByLength(18L, 1L), "foo"),
new Ds3PartialObject(Range.ByLength(10L, 26L), "bar"),
};
var fullObjects = new[] { "hello" };
var initialJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(null, false, false),
Stubs.Chunk2(null, false, false),
Stubs.Chunk3(null, false, false)
);
var availableJobResponse = Stubs.BuildJobResponse(
Stubs.Chunk1(Stubs.NodeId2, true, true),
Stubs.Chunk2(Stubs.NodeId2, true, true),
Stubs.Chunk3(Stubs.NodeId1, true, true)
);
var node1Client = new Mock <IDs3Client>(MockBehavior.Strict);
SetupGetObject(node1Client, "hello", 0L, "ABCDefGHIJ", Range.ByLength(0L, 10L));
SetupGetObject(node1Client, "bar", 35L, "z", Range.ByLength(35L, 1L));
var node2Client = new Mock <IDs3Client>(MockBehavior.Strict);
SetupGetObject(node2Client, "bar", 0L, "abcde", Range.ByLength(10L, 5L));
SetupGetObject(node2Client, "foo", 10L, "klmnop!", Range.ByLength(10L, 6L), Range.ByLength(18L, 1L));
SetupGetObject(node2Client, "foo", 0L, "abcdghij", Range.ByLength(0L, 4L), Range.ByLength(6L, 4L));
SetupGetObject(node2Client, "bar", 15L, "fghijklmnopqrstuvwxy", Range.ByLength(15L, 20L));
var clientFactory = new Mock <IDs3ClientFactory>(MockBehavior.Strict);
clientFactory
.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId1))
.Returns(node1Client.Object);
clientFactory
.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId2))
.Returns(node2Client.Object);
var client = new Mock <IDs3Client>(MockBehavior.Strict);
client
.Setup(c => c.BuildFactory(Stubs.Nodes))
.Returns(clientFactory.Object);
client
.Setup(c => c.BulkGet(ItIsBulkGetRequest(
Stubs.BucketName,
ChunkOrdering.None,
fullObjects,
partialObjects
)))
.Returns(initialJobResponse);
client
.Setup(c => c.GetAvailableJobChunks(ItIsGetAvailableJobChunksRequest(Stubs.JobId)))
.Returns(GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(1), availableJobResponse));
var job = new Ds3ClientHelpers(client.Object)
.StartPartialReadJob(Stubs.BucketName, fullObjects, partialObjects);
CollectionAssert.AreEquivalent(
partialObjects.Concat(new[] { new Ds3PartialObject(Range.ByLength(0L, 10L), "hello") }),
job.AllItems
);
var dataTransfers = new ConcurrentQueue <long>();
var itemsCompleted = new ConcurrentQueue <Ds3PartialObject>();
job.DataTransferred += dataTransfers.Enqueue;
job.ItemCompleted += itemsCompleted.Enqueue;
var streams = new ConcurrentDictionary <Ds3PartialObject, MockStream>();
job.Transfer(key => streams.GetOrAdd(key, k => new MockStream()));
node1Client.VerifyAll();
node2Client.VerifyAll();
clientFactory.VerifyAll();
client.VerifyAll();
var fullObjectPart = new Ds3PartialObject(Range.ByLength(0L, 10L), fullObjects[0]);
CollectionAssert.AreEqual(
new[]
{
new { Key = partialObjects[0], Value = "abcd" },
new { Key = partialObjects[1], Value = "ghijklmnop" },
new { Key = partialObjects[2], Value = "!" },
new { Key = partialObjects[3], Value = "abcdefghijklmnopqrstuvwxyz" },
new { Key = fullObjectPart, Value = "ABCDefGHIJ" },
}.OrderBy(it => it.Key).ToArray(),
(
from item in streams
orderby item.Key
select new { item.Key, Value = _encoding.GetString(item.Value.Result) }
).ToArray()
);
CollectionAssert.AreEquivalent(
new[] { 1L, 1L, 4L, 4L, 5L, 6L, 10L, 20L },
dataTransfers.Sorted().ToArray()
);
CollectionAssert.AreEquivalent(partialObjects.Concat(new[] { fullObjectPart }), itemsCompleted);
}
public void EnumerateTransfersStreamsNewlyAvailableTransferItems()
{
var jobResponse1 = Stubs.BuildJobResponse(
Stubs.Chunk1(null, false, false),
Stubs.Chunk2(null, false, false),
Stubs.Chunk3(null, false, false)
);
var jobResponse2 = Stubs.BuildJobResponse(
Stubs.Chunk2(Stubs.NodeId2, true, true)
);
var jobResponse3 = Stubs.BuildJobResponse(
Stubs.Chunk2(Stubs.NodeId2, true, true),
Stubs.Chunk1(Stubs.NodeId1, true, true)
);
var jobResponse4 = Stubs.BuildJobResponse(
Stubs.Chunk3(Stubs.NodeId2, true, true)
);
var node1Client = new Mock <IDs3Client>(MockBehavior.Strict).Object;
var node2Client = new Mock <IDs3Client>(MockBehavior.Strict).Object;
var clientFactory = new Mock <IDs3ClientFactory>(MockBehavior.Strict);
clientFactory.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId1)).Returns(node1Client);
clientFactory.Setup(cf => cf.GetClientForNodeId(Stubs.NodeId2)).Returns(node2Client);
var actionSequence = Queue(new { Item = (object)null, Type = "" });
var client = new Mock <IDs3Client>(MockBehavior.Strict);
client.Setup(c => c.BuildFactory(Stubs.Nodes)).Returns(clientFactory.Object);
var chunkResponses = new[]
{
GetAvailableJobChunksResponse.RetryAfter(TimeSpan.FromMinutes(5)),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(11), jobResponse2),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(8), jobResponse2),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(11), jobResponse3),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(7), jobResponse3),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(6), jobResponse3),
GetAvailableJobChunksResponse.RetryAfter(TimeSpan.FromMinutes(4)),
GetAvailableJobChunksResponse.Success(TimeSpan.FromMinutes(11), jobResponse4)
};
var chunkResponseQueue = new Queue <GetAvailableJobChunksResponse>(chunkResponses);
client
.Setup(c => c.GetAvailableJobChunks(AvailableChunks(Stubs.JobId)))
.Returns(() =>
{
var r = chunkResponseQueue.Dequeue();
actionSequence.Enqueue(new { Item = (object)r, Type = "Allocated" });
return(r);
});
var sleeps = new List <TimeSpan>();
var source = new ReadTransferItemSource(sleeps.Add, client.Object, jobResponse1);
var blobs = new[]
{
new Blob(Range.ByLength(0, 10), "foo"),
new Blob(Range.ByLength(15, 20), "bar"),
new Blob(Range.ByLength(0, 15), "bar"),
new Blob(Range.ByLength(10, 10), "foo"),
new Blob(Range.ByLength(0, 10), "hello"),
new Blob(Range.ByLength(35, 11), "bar")
};
var producerConsumer = new ProducerConsumer(1);
var completeBlobsTask = Task.Run(() =>
{
for (int i = 0; i < blobs.Length; i++)
{
producerConsumer.Read(() =>
actionSequence.Enqueue(new { Item = (object)blobs[i], Type = "Completed" })
);
source.CompleteBlob(blobs[i]);
}
});
CollectionAssert.AreEqual(
new[]
{
new TransferItem(node2Client, blobs[0]),
new TransferItem(node2Client, blobs[1]),
new TransferItem(node1Client, blobs[2]),
new TransferItem(node1Client, blobs[3]),
new TransferItem(node2Client, blobs[4]),
new TransferItem(node2Client, blobs[5]),
},
source
.EnumerateAvailableTransfers()
.Select(ti =>
{
producerConsumer.Write(() =>
actionSequence.Enqueue(new { Item = (object)ti.Blob, Type = "Returned" })
);
return(ti);
})
.ToArray(),
new TransferItemSourceHelpers.TransferItemComparer()
);
completeBlobsTask.Wait();
var results = actionSequence.ToArray();
CollectionAssert.AreEqual(
new[]
{
new { Item = (object)chunkResponses[0], Type = "Allocated" },
new { Item = (object)chunkResponses[1], Type = "Allocated" },
new { Item = (object)blobs[0], Type = "Returned" },
new { Item = (object)blobs[0], Type = "Completed" },
new { Item = (object)blobs[1], Type = "Returned" },
new { Item = (object)blobs[1], Type = "Completed" },
new { Item = (object)chunkResponses[2], Type = "Allocated" },
new { Item = (object)chunkResponses[3], Type = "Allocated" },
new { Item = (object)blobs[2], Type = "Returned" },
new { Item = (object)blobs[2], Type = "Completed" },
new { Item = (object)blobs[3], Type = "Returned" },
new { Item = (object)blobs[3], Type = "Completed" },
new { Item = (object)chunkResponses[4], Type = "Allocated" },
new { Item = (object)chunkResponses[5], Type = "Allocated" },
new { Item = (object)chunkResponses[6], Type = "Allocated" },
new { Item = (object)chunkResponses[7], Type = "Allocated" },
new { Item = (object)blobs[4], Type = "Returned" },
new { Item = (object)blobs[4], Type = "Completed" },
new { Item = (object)blobs[5], Type = "Returned" },
new { Item = (object)blobs[5], Type = "Completed" },
},
results
);
CollectionAssert.AreEqual(
new[]
{
TimeSpan.FromMinutes(5),
TimeSpan.FromMinutes(8),
TimeSpan.FromMinutes(7),
TimeSpan.FromMinutes(6),
TimeSpan.FromMinutes(4)
},
sleeps
);
clientFactory.VerifyAll();
client.VerifyAll();
}