public Asset(string Name, string Description, string Author, string AssetName, string Thumbnail, string Category, string UpdatedDate)
{
this.Name = Name;
this.Description = Description;
this.Author = Author;
this.AssetName = AssetName;
this.Thumbnail = Thumbnail;
this.Category = Category;
this.UpdatedDate = UpdatedDate == null ? DateTime.MinValue : DateTime.Parse(UpdatedDate);
assetCategory = AssetCategory.FromString(Category);
}
/// <summary>
/// Generate asset objects from the file manifests for a category.
/// </summary>
/// <param name="assetCategory">An asset category</param>
/// <returns>A list of Asset</returns>
public List <Asset> GenerateAssets(AssetCategory assetCategory)
{
List <Asset> buffer = new List <Asset>();
string pathToFolder = Path.Combine(MANIFESTS_TEMP, assetCategory.Value);
Directory.CreateDirectory(pathToFolder);
foreach (string file in Directory.GetFiles(pathToFolder, "*.json"))
{
using (FileStream stream = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
{
using (StreamReader reader = new StreamReader(stream))
{
buffer.Add(JsonConvert.DeserializeObject <Asset>(reader.ReadToEnd()));
}
}
}
return(buffer);
}
/// <summary>
/// Fetch all manifests for a single category.
/// </summary>
/// <param name="assetCategory">The category of asset manifest to fetch</param>
/// <param name="progress">An IProgress object to report download activities.</param>
public async Task GetAssetManifestsAsync(AssetCategory assetCategory, EventHandler <WriteObjectProgressArgs> progress = null)
{
if (client == null)
{
throw new Exception("You must authenticate first.");
}
string manifestFolderPath = Path.Combine(MANIFESTS_TEMP, assetCategory.Value);
// Delete the existing manifests if they exist, prevents old assets from being redownloaded.
if (Directory.Exists(manifestFolderPath))
{
Directory.Delete(manifestFolderPath, true);
Directory.CreateDirectory(manifestFolderPath);
}
var buckets = await client.ListBucketsAsync().ConfigureAwait(false);
foreach (var bucket in buckets.Buckets)
{
Dictionary <string, object> properties = new Dictionary <string, object>();
properties.Add("Prefix", $"{assetCategory.Value}/");
var keys = await client.GetAllObjectKeysAsync(bucket.BucketName, null, properties).ConfigureAwait(false);
foreach (var fileKey in keys.Where(k => k.EndsWith(".json")))
{
using (var response = await client.GetObjectAsync(bucket.BucketName, fileKey).ConfigureAwait(false))
{
string pathToFile = Path.Combine(MANIFESTS_TEMP, fileKey);
response.WriteObjectProgressEvent += progress;
await response.WriteResponseStreamToFileAsync(pathToFile, false, CancellationToken.None).ConfigureAwait(false);
response.WriteObjectProgressEvent -= progress;
}
}
}
}
