protected override async Task<bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back, CancellationToken cancellationToken)
{
JObject root = await client.GetJObjectAsync(Index, cancellationToken);
IEnumerable<CatalogItem> rootItems = root["items"]
.Select(item => new CatalogItem(item))
.Where(item => item.CommitTimeStamp > front.Value)
.OrderBy(item => item.CommitTimeStamp);
bool acceptNextBatch = false;
foreach (CatalogItem rootItem in rootItems)
{
JObject page = await client.GetJObjectAsync(rootItem.Uri, cancellationToken);
JToken context = null;
page.TryGetValue("@context", out context);
var batches = await CreateBatches(page["items"]
.Select(item => new CatalogItem(item))
.Where(item => item.CommitTimeStamp > front.Value && item.CommitTimeStamp <= back.Value));
var orderedBatches = batches
.OrderBy(batch => batch.CommitTimeStamp)
.ToList();
var lastBatch = orderedBatches.LastOrDefault();
foreach (var batch in orderedBatches)
{
acceptNextBatch = await OnProcessBatch(
client,
batch.Items.Select(item => item.Value),
context,
batch.CommitTimeStamp,
batch.CommitTimeStamp == lastBatch.CommitTimeStamp,
cancellationToken);
front.Value = batch.CommitTimeStamp;
await front.Save(cancellationToken);
Trace.TraceInformation("CommitCatalog.Fetch front.Save has value: {0}", front);
if (!acceptNextBatch)
{
break;
}
}
if (!acceptNextBatch)
{
break;
}
}
return acceptNextBatch;
}
private static async Task <CatalogCommitItemBatch[]> CreateBatchesForAllAvailableItemsInPageAsync(
ReadWriteCursor front,
ReadCursor back,
JObject page,
JObject context,
CreateCommitItemBatchesAsync createCommitItemBatchesAsync)
{
IEnumerable <CatalogCommitItem> commitItems = page["items"]
.Select(item => CatalogCommitItem.Create(context, (JObject)item))
.Where(item => item.CommitTimeStamp > front.Value && item.CommitTimeStamp <= back.Value);
IEnumerable <CatalogCommitItemBatch> batches = await createCommitItemBatchesAsync(commitItems);
return(batches
.OrderBy(batch => batch.CommitTimeStamp)
.ToArray());
}
protected override void Init(IDictionary<string, string> arguments, CancellationToken cancellationToken)
{
var source = arguments.GetOrThrow<string>(Arguments.Source);
var verbose = arguments.GetOrDefault(Arguments.Verbose, false);
var contentBaseAddress = arguments.GetOrDefault<string>(Arguments.ContentBaseAddress);
var storageFactory = CommandHelpers.CreateStorageFactory(arguments, verbose);
Logger.LogInformation("CONFIG source: \"{ConfigSource}\" storage: \"{Storage}\"", source, storageFactory);
_collector = new DnxCatalogCollector(new Uri(source), storageFactory, CommandHelpers.GetHttpMessageHandlerFactory(verbose))
{
ContentBaseAddress = contentBaseAddress == null ? null : new Uri(contentBaseAddress)
};
var storage = storageFactory.Create();
_front = new DurableCursor(storage.ResolveUri("cursor.json"), storage, MemoryCursor.MinValue);
_back = MemoryCursor.CreateMax();
}
protected async Task <IEnumerable <CatalogCommit> > FetchCatalogCommitsAsync(
CollectorHttpClient client,
ReadCursor front,
ReadCursor back,
CancellationToken cancellationToken)
{
JObject root;
using (_telemetryService.TrackDuration(
TelemetryConstants.CatalogIndexReadDurationSeconds,
new Dictionary <string, string>()
{
{ TelemetryConstants.Uri, Index.AbsoluteUri }
}))
{
root = await client.GetJObjectAsync(Index, cancellationToken);
}
var commits = root["items"].Select(item => CatalogCommit.Create((JObject)item));
return(GetCommitsInRange(commits, front.Value, back.Value));
}
public async Task<bool> Run(ReadWriteCursor front, ReadCursor back, CancellationToken cancellationToken)
{
await Task.WhenAll(front.Load(cancellationToken), back.Load(cancellationToken));
Trace.TraceInformation("Run ( {0} , {1} )", front, back);
bool result = false;
HttpMessageHandler handler = null;
if (_handlerFunc != null)
{
handler = _handlerFunc();
}
using (CollectorHttpClient client = new CollectorHttpClient(handler))
{
result = await Fetch(client, front, back, cancellationToken);
RequestCount = client.RequestCount;
}
return result;
}
public async Task <bool> Run(ReadWriteCursor front, ReadCursor back)
{
await Task.WhenAll(front.Load(), back.Load());
Trace.TraceInformation("Run ( {0} , {1} )", front, back);
bool result = false;
HttpMessageHandler handler = null;
if (_handlerFunc != null)
{
handler = _handlerFunc();
}
using (CollectorHttpClient client = new CollectorHttpClient(handler))
{
result = await Fetch(client, front, back);
RequestCount = client.RequestCount;
}
return(result);
}
protected override async Task<bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back, CancellationToken cancellationToken)
{
int beforeBatchCount = BatchCount;
IList<JObject> items = new List<JObject>();
JObject root = await client.GetJObjectAsync(Index, cancellationToken);
JToken context = null;
root.TryGetValue("@context", out context);
IEnumerable<JToken> rootItems = root["items"].OrderBy(item => item["commitTimeStamp"].ToObject<DateTime>());
DateTime resumeDateTime = front.Value;
bool acceptNextBatch = true;
foreach (JObject rootItem in rootItems)
{
if (!acceptNextBatch)
{
break;
}
DateTime rootItemCommitTimeStamp = rootItem["commitTimeStamp"].ToObject<DateTime>();
if (rootItemCommitTimeStamp <= front.Value)
{
continue;
}
Uri pageUri = rootItem["@id"].ToObject<Uri>();
JObject page = await client.GetJObjectAsync(pageUri);
IEnumerable<JToken> pageItems = page["items"].OrderBy(item => item["commitTimeStamp"].ToObject<DateTime>());
foreach (JObject pageItem in pageItems)
{
DateTime pageItemCommitTimeStamp = pageItem["commitTimeStamp"].ToObject<DateTime>();
if (pageItemCommitTimeStamp <= front.Value)
{
continue;
}
if (pageItemCommitTimeStamp > back.Value)
{
break;
}
items.Add(pageItem);
resumeDateTime = pageItemCommitTimeStamp;
if (items.Count == _batchSize)
{
acceptNextBatch = await ProcessBatch(client, items, context, front, resumeDateTime, cancellationToken);
if (!acceptNextBatch)
{
break;
}
}
}
}
if (acceptNextBatch && items.Count > 0)
{
await ProcessBatch(client, items, context, front, resumeDateTime, cancellationToken);
}
int afterBatchCount = BatchCount;
PreviousRunBatchCount = (afterBatchCount - beforeBatchCount);
return (PreviousRunBatchCount > 0);
}
protected abstract Task <bool> FetchAsync(
CollectorHttpClient client,
ReadWriteCursor front,
ReadCursor back,
CancellationToken cancellationToken);
internal static async Task <bool> ProcessCatalogCommitsAsync(
CollectorHttpClient client,
ReadWriteCursor front,
ReadCursor back,
FetchCatalogCommitsAsync fetchCatalogCommitsAsync,
CreateCommitItemBatchesAsync createCommitItemBatchesAsync,
ProcessCommitItemBatchAsync processCommitItemBatchAsync,
int maxConcurrentBatches,
ILogger logger,
CancellationToken cancellationToken)
{
var rootItems = await fetchCatalogCommitsAsync(client, front, back, cancellationToken);
var hasAnyBatchFailed = false;
var hasAnyBatchBeenProcessed = false;
foreach (CatalogCommit rootItem in rootItems)
{
JObject page = await client.GetJObjectAsync(rootItem.Uri, cancellationToken);
var context = (JObject)page["@context"];
CatalogCommitItemBatch[] batches = await CreateBatchesForAllAvailableItemsInPageAsync(
front,
back,
page,
context,
createCommitItemBatchesAsync);
if (!batches.Any())
{
continue;
}
hasAnyBatchBeenProcessed = true;
DateTime maxCommitTimeStamp = GetMaxCommitTimeStamp(batches);
var unprocessedBatches = batches.ToList();
var processingBatches = new List <CatalogCommitItemBatchTask>();
var exceptions = new List <Exception>();
StartProcessingBatchesIfNoFailures(
client,
context,
unprocessedBatches,
processingBatches,
maxConcurrentBatches,
processCommitItemBatchAsync,
cancellationToken);
while (processingBatches.Any())
{
var activeTasks = processingBatches.Where(batch => !batch.Task.IsCompleted)
.Select(batch => batch.Task)
.DefaultIfEmpty(Task.CompletedTask);
await Task.WhenAny(activeTasks);
for (var i = 0; i < processingBatches.Count; ++i)
{
var batch = processingBatches[i];
if (batch.Task.IsFaulted || batch.Task.IsCanceled)
{
hasAnyBatchFailed = true;
if (batch.Task.Exception != null)
{
var exception = ExceptionUtilities.Unwrap(batch.Task.Exception);
exceptions.Add(exception);
}
}
if (batch.Task.IsCompleted)
{
processingBatches.RemoveAt(i);
--i;
}
}
if (!hasAnyBatchFailed)
{
StartProcessingBatchesIfNoFailures(
client,
context,
unprocessedBatches,
processingBatches,
maxConcurrentBatches,
processCommitItemBatchAsync,
cancellationToken);
}
}
if (hasAnyBatchFailed)
{
foreach (var exception in exceptions)
{
logger.LogError(_eventId, exception, Strings.BatchProcessingFailure);
}
var innerException = exceptions.Count == 1 ? exceptions.Single() : new AggregateException(exceptions);
throw new BatchProcessingException(innerException);
}
front.Value = maxCommitTimeStamp;
await front.SaveAsync(cancellationToken);
Trace.TraceInformation($"{nameof(CatalogCommitUtilities)}.{nameof(ProcessCatalogCommitsAsync)} " +
$"{nameof(front)}.{nameof(front.Value)} saved since timestamp changed from previous: {{0}}", front);
}
return(hasAnyBatchBeenProcessed);
}
protected override async Task <bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back)
{
IList <JObject> items = new List <JObject>();
JObject root = await client.GetJObjectAsync(Index);
IEnumerable <CatalogItem> rootItems = root["items"]
.Select(item => new CatalogItem(item))
.Where(item => item.CommitTimeStamp > front.Value)
.OrderBy(item => item.CommitTimeStamp);
bool acceptNextBatch = false;
foreach (CatalogItem rootItem in rootItems)
{
JObject page = await client.GetJObjectAsync(rootItem.Uri);
JToken context = null;
page.TryGetValue("@context", out context);
var batches = page["items"]
.Select(item => new CatalogItem(item))
.Where(item => item.CommitTimeStamp > front.Value && item.CommitTimeStamp <= back.Value)
.GroupBy(item => item.CommitTimeStamp)
.OrderBy(group => group.Key);
foreach (var batch in batches)
{
acceptNextBatch = await OnProcessBatch(client, batch.Select(item => item.Value), context, batch.Key);
front.Value = batch.Key;
await front.Save();
Trace.TraceInformation("CommitCatalog.Fetch front.Save has value: {0}", front);
if (!acceptNextBatch)
{
break;
}
}
if (!acceptNextBatch)
{
break;
}
}
return(acceptNextBatch);
}
protected override async Task <bool> FetchAsync(
CollectorHttpClient client,
ReadWriteCursor front,
ReadCursor back,
CancellationToken cancellationToken)
{
IEnumerable <CatalogCommit> commits = await FetchCatalogCommitsAsync(client, front, cancellationToken);
bool acceptNextBatch = false;
foreach (CatalogCommit commit in commits)
{
JObject page = await client.GetJObjectAsync(commit.Uri, cancellationToken);
JToken context = null;
page.TryGetValue("@context", out context);
var batches = await CreateBatchesAsync(page["items"]
.Select(item => CatalogCommitItem.Create((JObject)context, (JObject)item))
.Where(item => item.CommitTimeStamp > front.Value && item.CommitTimeStamp <= back.Value));
var orderedBatches = batches
.OrderBy(batch => batch.CommitTimeStamp)
.ToList();
var lastBatch = orderedBatches.LastOrDefault();
DateTime?previousCommitTimeStamp = null;
foreach (var batch in orderedBatches)
{
// If the commit timestamp has changed from the previous batch, commit. This is important because if
// two batches have the same commit timestamp but processing the second fails, we should not
// progress the cursor forward.
if (previousCommitTimeStamp.HasValue && previousCommitTimeStamp != batch.CommitTimeStamp)
{
front.Value = previousCommitTimeStamp.Value;
await front.SaveAsync(cancellationToken);
Trace.TraceInformation("CommitCatalog.Fetch front.Value saved since timestamp changed from previous: {0}", front);
}
using (_telemetryService.TrackDuration(TelemetryConstants.ProcessBatchSeconds, new Dictionary <string, string>()
{
{ TelemetryConstants.BatchItemCount, batch.Items.Count.ToString() }
}))
{
acceptNextBatch = await OnProcessBatchAsync(
client,
batch.Items,
context,
batch.CommitTimeStamp,
batch.CommitTimeStamp == lastBatch.CommitTimeStamp,
cancellationToken);
}
// If this is the last batch, commit the cursor.
if (ReferenceEquals(batch, lastBatch))
{
front.Value = batch.CommitTimeStamp;
await front.SaveAsync(cancellationToken);
Trace.TraceInformation("CommitCatalog.Fetch front.Value saved due to last batch: {0}", front);
}
previousCommitTimeStamp = batch.CommitTimeStamp;
Trace.TraceInformation("CommitCatalog.Fetch front.Value is: {0}", front);
if (!acceptNextBatch)
{
break;
}
}
if (!acceptNextBatch)
{
break;
}
}
return(acceptNextBatch);
}
protected override void Init(IDictionary<string, string> arguments, CancellationToken cancellationToken)
{
var source = arguments.GetOrThrow<string>(Arguments.Source);
var unlistShouldDelete = arguments.GetOrDefault(Arguments.UnlistShouldDelete, false);
var verbose = arguments.GetOrDefault(Arguments.Verbose, false);
var contentBaseAddress = arguments.GetOrDefault<string>(Arguments.ContentBaseAddress);
StorageFactory storageFactoryToUse;
var storageFactory = CommandHelpers.CreateStorageFactory(arguments, verbose);
var compressedStorageFactory = CommandHelpers.CreateCompressedStorageFactory(arguments, verbose);
Logger.LogInformation("CONFIG source: \"{ConfigSource}\" storage: \"{Storage}\"", source, storageFactory);
RegistrationMakerCatalogItem.PackagePathProvider = new PackagesFolderPackagePathProvider();
if (compressedStorageFactory != null)
{
var secondaryStorageBaseUrlRewriter = new SecondaryStorageBaseUrlRewriter(new List<KeyValuePair<string, string>>
{
// always rewrite storage root url in seconary
new KeyValuePair<string, string>(storageFactory.BaseAddress.ToString(), compressedStorageFactory.BaseAddress.ToString())
});
var aggregateStorageFactory = new AggregateStorageFactory(
storageFactory,
new[] { compressedStorageFactory },
secondaryStorageBaseUrlRewriter.Rewrite);
storageFactoryToUse = aggregateStorageFactory;
}
else
{
storageFactoryToUse = storageFactory;
}
_collector = new RegistrationCollector(new Uri(source), storageFactoryToUse, CommandHelpers.GetHttpMessageHandlerFactory(verbose))
{
ContentBaseAddress = contentBaseAddress == null
? null
: new Uri(contentBaseAddress)
};
var storage = storageFactoryToUse.Create();
_front = new DurableCursor(storage.ResolveUri("cursor.json"), storage, MemoryCursor.MinValue);
_back = MemoryCursor.CreateMax();
}
protected abstract Task<bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back, CancellationToken cancellationToken);
protected override async Task <bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back)
{
int beforeBatchCount = BatchCount;
IList <JObject> items = new List <JObject>();
JObject root = await client.GetJObjectAsync(Index);
JToken context = null;
root.TryGetValue("@context", out context);
IEnumerable <JToken> rootItems = root["items"].OrderBy(item => item["commitTimeStamp"].ToObject <DateTime>());
DateTime resumeDateTime = front.Value;
bool acceptNextBatch = true;
foreach (JObject rootItem in rootItems)
{
if (!acceptNextBatch)
{
break;
}
DateTime rootItemCommitTimeStamp = rootItem["commitTimeStamp"].ToObject <DateTime>();
if (rootItemCommitTimeStamp <= front.Value)
{
continue;
}
Uri pageUri = rootItem["@id"].ToObject <Uri>();
JObject page = await client.GetJObjectAsync(pageUri);
IEnumerable <JToken> pageItems = page["items"].OrderBy(item => item["commitTimeStamp"].ToObject <DateTime>());
foreach (JObject pageItem in pageItems)
{
DateTime pageItemCommitTimeStamp = pageItem["commitTimeStamp"].ToObject <DateTime>();
if (pageItemCommitTimeStamp <= front.Value)
{
continue;
}
if (pageItemCommitTimeStamp > back.Value)
{
break;
}
items.Add(pageItem);
resumeDateTime = pageItemCommitTimeStamp;
if (items.Count == _batchSize)
{
acceptNextBatch = await ProcessBatch(client, items, context, front, resumeDateTime);
if (!acceptNextBatch)
{
break;
}
}
}
}
if (acceptNextBatch && items.Count > 0)
{
await ProcessBatch(client, items, context, front, resumeDateTime);
}
int afterBatchCount = BatchCount;
PreviousRunBatchCount = (afterBatchCount - beforeBatchCount);
return(PreviousRunBatchCount > 0);
}
protected abstract Task <bool> Fetch(CollectorHttpClient client, ReadWriteCursor front, ReadCursor back);
