public void UnloadAsset(AssetId assetId)
{
if (!_registeredAssets.TryGetValue(assetId, out var registeredAsset))
{
throw new AssetNotRegisteredException(assetId);
}
if (registeredAsset.IsLoaded)
{
Debug.Assert(registeredAsset.AssetInstance != null, "registeredAsset.AssetInstance != null");
_assetsIds.Remove(registeredAsset.AssetInstance);
registeredAsset.Unload();
}
else
{
Log.Debug($"Asset is not loaded. Skipping asset unload. Asset info: {registeredAsset.AssetInfo}");
}
}
/// <summary>
/// Loads <see cref="AssetData" /> from specified stream.
/// </summary>
/// <param name="stream">Stream containing asset data.</param>
/// <returns></returns>
/// <exception cref="InvalidOperationException"><c>AssetType</c> property is null or <c>ContentFormat</c> property is null.</exception>
/// <exception cref="ArgumentOutOfRangeException">
/// <c>ContentFormat</c> property value is none of available formats
/// <see cref="AssetContentFormat" />.
/// </exception>
public static AssetData Load(Stream stream)
{
using var jsonDocument = JsonDocument.Parse(stream);
var rootElement = jsonDocument.RootElement;
var assetId = new AssetId(rootElement.GetProperty("AssetId").GetGuid());
var assetTypeString = rootElement.GetProperty("AssetType").GetString() ?? throw new InvalidOperationException("AssetType cannot be null.");
var assetType = new AssetType(assetTypeString);
var contentFormatString = rootElement.GetProperty("ContentFormat").GetString() ??
throw new InvalidOperationException("ContentFormat cannot be null.");
var contentFormat = Enum.Parse <AssetContentFormat>(contentFormatString);
var contentProperty = rootElement.GetProperty("Content");
Content content = contentFormat switch
{
AssetContentFormat.Binary => new BinaryContent(contentProperty),
AssetContentFormat.String => new StringContent(contentProperty),
AssetContentFormat.Json => new JsonContent(contentProperty),
_ => throw new ArgumentOutOfRangeException("ContentFormat", contentFormat, "Unknown content format.")
};
return(new AssetData(assetId, assetType, content));
}
public TAsset GetAsset <TAsset>(AssetId assetId)
{
if (!_registeredAssets.TryGetValue(assetId, out var registeredAsset))
{
throw new AssetNotRegisteredException(assetId, typeof(TAsset));
}
if (registeredAsset.AssetClassType != typeof(TAsset))
{
throw new AssetNotRegisteredException(assetId, typeof(TAsset));
}
if (!registeredAsset.IsLoaded)
{
Log.Debug($"Asset not yet loaded, will be loaded now. Asset info: {registeredAsset.AssetInfo}");
registeredAsset.Load();
Debug.Assert(registeredAsset.AssetInstance != null, "registeredAsset.AssetInstance != null");
_assetsIds.Add(registeredAsset.AssetInstance, assetId);
}
Debug.Assert(registeredAsset.AssetInstance != null, "registeredAsset.AssetInstance != null");
return((TAsset)registeredAsset.AssetInstance);
}
/// <summary> /// Creates new instance of <see cref="AssetData" /> with specified <see cref="Assets.AssetId" />, /// <see cref="Assets.AssetType" /> and content in JSON format. /// </summary> /// <param name="assetId"><see cref="Assets.AssetId" /> of <see cref="AssetData" />.</param> /// <param name="assetType"><see cref="Assets.AssetType" /> of <see cref="AssetData" />.</param> /// <param name="content"> /// Instance of <typeparamref name="T" /> to be serialized as JSON content of /// <see cref="AssetData" />. /// </param> /// <returns>New instance of <see cref="AssetData" /> with <see cref="string" /> content.</returns> public static AssetData CreateWithJsonContent <T>(AssetId assetId, AssetType assetType, T content) where T : notnull => new AssetData(assetId, assetType, new JsonContent(content));
/// <summary> /// Creates new instance of <see cref="AssetData" /> with specified <see cref="Assets.AssetId" />, /// <see cref="Assets.AssetType" /> and content in <see cref="string" /> format. /// </summary> /// <param name="assetId"><see cref="Assets.AssetId" /> of <see cref="AssetData" />.</param> /// <param name="assetType"><see cref="Assets.AssetType" /> of <see cref="AssetData" />.</param> /// <param name="content"><see cref="string" /> to be used as content of <see cref="AssetData" />.</param> /// <returns>New instance of <see cref="AssetData" /> with <see cref="string" /> content.</returns> public static AssetData CreateWithStringContent(AssetId assetId, AssetType assetType, string content) => new AssetData(assetId, assetType, new StringContent(content));
/// <summary> /// Creates new instance of <see cref="AssetData" /> with specified <see cref="Assets.AssetId" />, /// <see cref="Assets.AssetType" /> and content in binary format. /// </summary> /// <param name="assetId"><see cref="Assets.AssetId" /> of <see cref="AssetData" />.</param> /// <param name="assetType"><see cref="Assets.AssetType" /> of <see cref="AssetData" />.</param> /// <param name="content"><see cref="Stream" /> to read from the binary content of <see cref="AssetData" />.</param> /// <returns>New instance of <see cref="AssetData" /> with binary content.</returns> public static AssetData CreateWithBinaryContent(AssetId assetId, AssetType assetType, Stream content) => new AssetData(assetId, assetType, new BinaryContent(content));
private AssetData(AssetId assetId, AssetType assetType, Content content)
{
AssetId = assetId;
AssetType = assetType;
_content = content;
}
public AssetNotRegisteredException(AssetId assetId, Type assetType) : base(
$"Asset of class type {assetType.FullName} with id {assetId} was not registered in an asset store.")
{
AssetId = assetId;
AssetType = assetType;
}
public AssetNotRegisteredException(AssetId assetId) : base(
$"Asset with id {assetId} was not registered in an asset store.")
{
AssetId = assetId;
}
/// <inheritdoc /> public bool Equals(AssetInfo other) => AssetId.Equals(other.AssetId) && AssetType.Equals(other.AssetType) && AssetFilePath == other.AssetFilePath;
/// <summary>
/// Creates new instance of <see cref="AssetInfo" />.
/// </summary>
/// <param name="assetId">Id of asset.</param>
/// <param name="assetType">Type of asset.</param>
/// <param name="assetFilePath">Path to asset file.</param>
public AssetInfo(AssetId assetId, AssetType assetType, string assetFilePath)
{
AssetId = assetId;
AssetType = assetType;
_assetFilePath = assetFilePath ?? throw new ArgumentNullException(nameof(assetFilePath));
}
