private static void CheckArguments(IContentManager content, IUrlReference urlReference)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
if (urlReference == null || urlReference.IsEmpty)
{
throw new ArgumentNullException(nameof(urlReference));
}
}
/// <summary>
/// Check if the specified asset url exists.
/// </summary>
/// <param name="content">The <see cref="IContentManager"/>.</param>
/// <param name="urlReference">The URL.</param>
/// <returns><c>true</c> if the specified asset url exists, <c>false</c> otherwise.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="urlReference"/> is <c>null</c> or <c>empty</c>. Or <paramref name="content"/> is <c>null</c>.</exception>
public static bool Exists(this IContentManager content, IUrlReference urlReference)
{
CheckArguments(content, urlReference);
return(content.Exists(urlReference.Url));
}
/// <summary>
/// Unloads the asset at the specified URL.
/// </summary>
/// <param name="urlReference">The URL.</param>
/// <exception cref="ArgumentNullException">If <paramref name="urlReference"/> is <c>null</c> or <c>empty</c>. Or <paramref name="content"/> is <c>null</c>.</exception>
public static void Unload(this IContentManager content, IUrlReference urlReference)
{
CheckArguments(content, urlReference);
content.Unload(urlReference.Url);
}
/// <summary>
/// Gets whether an asset with the given URL is currently loaded.
/// </summary>
/// <param name="urlReference">The URL to check.</param>
/// <param name="loadedManuallyOnly">If <c>true</c>, this method will return true only if an asset with the given URL has been manually loaded via <see cref="Load"/>, and not if the asset has been only loaded indirectly from another asset.</param>
/// <returns><c>True</c> if an asset with the given URL is currently loaded, <c>false</c> otherwise.</returns>
/// <exception cref="ArgumentNullException">If <paramref name="urlReference"/> is <c>null</c> or <c>empty</c>. Or <paramref name="content"/> is <c>null</c>.</exception>
public static bool IsLoaded(this IContentManager content, IUrlReference urlReference, bool loadedManuallyOnly = false)
{
CheckArguments(content, urlReference);
return(content.IsLoaded(urlReference.Url, loadedManuallyOnly));
}
