internal FolderDataSource(
FilePath root,
IFolderDataWatcherFactory watcherFactory = null,
IDirectoryInteractorFactory interactorFactory = null,
IFileInformationFactory fileInformationFactory = null)
{
this.files = new Dictionary <FilePath, IFileInformation>();
this.root = root;
this.interactorFactory = interactorFactory ?? new DirectoryInteractorFactory();
this.watcherFactory = watcherFactory ?? new FolderDataWatcherFactory();
this.fileInformationFactory = fileInformationFactory ?? new FileInformationFactory();
this.interactor = this.interactorFactory.MakeInteractor();
this.watcher = this.watcherFactory.MakeFolderDataWatcher(root);
this.disposed = false;
this.disposalLock = new object();
watcher.EnableRaisingEvents = true;
this.watcher.Added += (obj, e) =>
{
this.Add(e);
this.OnChange.Invoke(obj, e);
};
this.watcher.Changed += (obj, e) =>
{
this.Update(e);
this.OnChange.Invoke(obj, e);
};
this.watcher.Moved += (obj, e) =>
{
this.Move(e);
this.OnChange.Invoke(obj, e);
};
this.watcher.Removed += (obj, e) =>
{
this.Remove(e);
this.OnChange.Invoke(obj, e);
};
foreach (FilePath path in this.interactor.EnumerateFiles(this.root))
{
this.files.Add(path, this.fileInformationFactory.FromPath(path));
}
}
/// <inheritdoc />
public IDataSource <IFileInformation> MakeDataSource(IBoundConfiguration configuration)
{
if (configuration == null)
{
throw new ArgumentNullException(nameof(configuration));
}
IFolderDataWatcherFactory factory =
(IFolderDataWatcherFactory)(configuration.GetOrDefault(
FolderDataSourceFactory.watcherFactory,
() => new FolderDataWatcherFactory(
(string)configuration.GetOrDefault(FolderDataSourceFactory.factoryFilter, () => null),
(long)configuration.GetOrDefault(FolderDataSourceFactory.factoryChangeFilterTicks, () => 0L))));
return(new FolderDataSource(
(FilePath)configuration[FolderDataSourceFactory.path],
factory,
(IDirectoryInteractorFactory)configuration[FolderDataSourceFactory.interactorFactory]));
}
/// <inheritdoc />
public IDataSource MakeDataSource(IReadOnlyDictionary <IConfigurationRequirement, object> bindings)
{
if (bindings == null)
{
throw new ArgumentNullException(nameof(bindings));
}
List <Exception> failures = new List <Exception>();
Dictionary <IConfigurationRequirement, object> successes =
new Dictionary <IConfigurationRequirement, object>();
foreach (IConfigurationRequirement requirement in this.Requirements)
{
bool present = bindings.TryGetValue(requirement, out object binding);
if (!present && !requirement.IsOptional)
{
failures.Add(
new ArgumentException(
string.Format(
en_us.Culture,
en_us.FolderDataSourceFactoryMissingRequirement,
requirement.Name)));
}
else if (present)
{
Exception exception = requirement.Validate(binding);
if (exception != null)
{
failures.Add(exception);
}
else
{
successes.Add(requirement, binding);
}
}
}
foreach (KeyValuePair <IConfigurationRequirement, object> pair in
successes
.Where(x => !x.Key.DependsOn.All(y => successes.ContainsKey(y)))
.ToArray())
{
successes.Remove(pair.Key);
failures.Add(
new ArgumentException(
string.Format(
en_us.Culture,
en_us.FolderDataSourceFactoryDependenciesNotSatisfied,
pair.Key.Name)));
}
foreach (KeyValuePair <IConfigurationRequirement, object> pair in
successes
.Where(x => x.Key.ExclusiveWith.Any(y => successes.ContainsKey(y)))
.ToArray())
{
successes.Remove(pair.Key);
failures.Add(
new ArgumentException(
string.Format(
en_us.Culture,
en_us.FolderDataSourceFactoryConflictingRequirementsSpecified,
pair.Key.Name)));
}
if (failures.Any())
{
throw new AggregateException(
en_us.FolderDataSourceFactoryRequirementsFailedValidation,
failures);
}
IFolderDataWatcherFactory factory =
(IFolderDataWatcherFactory)(successes.GetOrDefault(
FolderDataSourceFactory.watcherFactory,
() => new FolderDataWatcherFactory(
(string)successes.GetOrDefault(FolderDataSourceFactory.factoryFilter, () => null),
(long)successes.GetOrDefault(FolderDataSourceFactory.factoryChangeFilterTicks, () => 0L))));
return(new FolderDataSource(
(FilePath)successes[FolderDataSourceFactory.path],
factory,
(IDirectoryInteractorFactory)successes[FolderDataSourceFactory.interactorFactory]));
}