public SampleBrowserViewModel(
[ImportMany] IEnumerable<Lazy<SampleBase, ISampleMetadata>> samples,
[ImportMany] IEnumerable<Lazy<TechDemoViewModel, ITechDemoMetadata>> techDemos)
{
DisplayName = "Sample Browser";
_categories = new[]
{
new SampleCategoryViewModel("Samples", samples.OrderBy(x => x.Metadata.SortOrder).Select(x => new SampleViewModel(x.Value))),
new SampleCategoryViewModel("Tech Demos", techDemos.OrderBy(x => x.Metadata.SortOrder).Select(x => x.Value))
};
_selectedCategory = _categories[0];
}
public static async Task <HttpResponseMessage> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "samples")]
HttpRequestMessage req,
[Table(Constants.SamplesTableName)] CloudTable table,
TraceWriter log,
CancellationToken ct)
{
var categoriesQuery = table
.CreateQuery <SampleCategory>()
.Where(cat => cat.PartitionKey.Equals(nameof(SampleCategory)) && !cat.RowKey.Equals(Constants.DefaultCategoryIdForSaving))
.AsTableQuery()
.SelectColumn(nameof(SampleCategory.Title));
var categories = (await table.ExecuteQuery(categoriesQuery, ct))
.OrderBy(cat => cat.ListingOrder)
.ThenBy(cat => cat.Title)
.ThenBy(cat => cat.Id)
.ToArray();
var result = new List <SampleCategoryViewModel>(categories.Length);
var etagSb = new StringBuilder();
etagSb.Append('"');
foreach (var category in categories)
{
var samplesQuery = table
.CreateQuery <Sample>()
.Where(smpl => smpl.PartitionKey.Equals(nameof(Sample)) && smpl.Category.Equals(category.Id))
.AsTableQuery()
.SelectColumn(nameof(Sample.Category))
.SelectColumn(nameof(Sample.Title))
.SelectColumn(nameof(Sample.Description))
.SelectColumn(nameof(Sample.Keywords));
var samples = (await table.ExecuteQuery(samplesQuery, ct))
.OrderBy(cat => cat.ListingOrder)
.ThenBy(cat => cat.Title)
.ThenBy(cat => cat.Id)
.ToArray();
var categoryVm = new SampleCategoryViewModel(category, samples);
result.Add(categoryVm);
etagSb.Append(categoryVm.SamplesHash.ToString("X"));
}
etagSb.Append('"');
var etag = etagSb.ToString();
if (req.Headers.IfMatch.Any(im => im.Tag.Equals(etag, StringComparison.OrdinalIgnoreCase)))
{
return(req.CreateResponse(HttpStatusCode.NotModified));
}
var response = req.CreateResponse(HttpStatusCode.OK, result.ToArray());
response.Headers.CacheControl =
new CacheControlHeaderValue
{
NoCache = false,
Private = false,
MaxAge = TimeSpan.FromHours(0.5),
MustRevalidate = false,
NoStore = false,
NoTransform = true,
MaxStale = true
};
response.Headers.ETag = new EntityTagHeaderValue(etag, false);
return(response);
}
