protected virtual IEnumerable <LibraryHierarchyNode> GetNodesCore(LibraryHierarchy libraryHierarchy, string filter)
{
this.State |= LibraryHierarchyBrowserState.Loading;
try
{
using (var database = this.DatabaseFactory.Create())
{
using (var transaction = database.BeginTransaction(database.PreferredIsolationLevel))
{
var nodes = database.ExecuteEnumerator <LibraryHierarchyNode>(database.Queries.GetLibraryHierarchyNodes(filter), (parameters, phase) =>
{
switch (phase)
{
case DatabaseParameterPhase.Fetch:
parameters["libraryHierarchyId"] = libraryHierarchy.Id;
break;
}
}, transaction);
foreach (var node in nodes)
{
node.InitializeComponent(this.Core);
yield return(node);
}
}
}
}
finally
{
this.State &= ~LibraryHierarchyBrowserState.Loading;
}
}
public async Task <int> Write(LibraryHierarchy libraryHierarchy, int libraryItemId, int?parentId, string value, bool isLeaf)
{
var libraryHierarchyItemId = default(int);
if (!isLeaf && this.Store.TryGetValue(libraryHierarchy.Id, parentId, value, out libraryHierarchyItemId))
{
this.UpdateCommand.Parameters["libraryHierarchyItemId"] = libraryHierarchyItemId;
this.UpdateCommand.Parameters["libraryItemId"] = libraryItemId;
await this.UpdateCommand.ExecuteNonQueryAsync().ConfigureAwait(false);
}
else
{
this.AddCommand.Parameters["libraryHierarchyId"] = libraryHierarchy.Id;
this.AddCommand.Parameters["libraryItemId"] = libraryItemId;
this.AddCommand.Parameters["parentId"] = parentId;
this.AddCommand.Parameters["value"] = value;
this.AddCommand.Parameters["isLeaf"] = isLeaf;
if (isLeaf)
{
await this.AddCommand.ExecuteNonQueryAsync().ConfigureAwait(false);
}
else
{
this.Store.Add(
libraryHierarchy.Id,
parentId,
value,
libraryHierarchyItemId = Converter.ChangeType <int>(await this.AddCommand.ExecuteScalarAsync().ConfigureAwait(false))
);
}
}
return(libraryHierarchyItemId);
}
public LibraryHierarchyNode GetNode(LibraryHierarchy libraryHierarchy, LibraryHierarchyNode libraryHierarchyNode)
{
var libraryHierarchyNodes = new List <LibraryHierarchyNode>()
{
libraryHierarchyNode
};
while (libraryHierarchyNode.Parent != null)
{
libraryHierarchyNodes.Insert(0, libraryHierarchyNode.Parent);
libraryHierarchyNode = libraryHierarchyNode.Parent;
}
for (var a = 0; a < libraryHierarchyNodes.Count; a++)
{
if (a == 0)
{
libraryHierarchyNodes[a] = this.GetNodes(libraryHierarchy).Find(libraryHierarchyNodes[a]);
}
else
{
libraryHierarchyNodes[a] = this.GetNodes(libraryHierarchyNodes[a - 1]).Find(libraryHierarchyNodes[a]);
}
libraryHierarchyNode = libraryHierarchyNodes[a];
if (libraryHierarchyNode == null)
{
//A node failed to refresh, cannot continue as we don't know what the new parent is.
return(null);
}
}
return(libraryHierarchyNode);
}
public IEnumerable <LibraryHierarchyNode> GetNodes(LibraryHierarchy libraryHierarchy)
{
var key = new LibraryHierarchyCacheKey(libraryHierarchy, this.Filter);
var nodes = this.LibraryHierarchyCache.GetNodes(key, () => this.GetNodesCore(libraryHierarchy));
if (this.LibraryManager.SelectedItem != null)
{
this.ApplySelection(nodes);
}
return(nodes);
}
private Task <int> Populate(LibraryItem libraryItem, LibraryHierarchy libraryHierarchy, LibraryHierarchyLevel libraryHierarchyLevel, int?parentId, bool isLeaf)
{
var runner = new LibraryItemScriptRunner(
this.GetOrAddContext(),
libraryItem,
libraryHierarchyLevel.Script
);
runner.Prepare();
var value = Convert.ToString(runner.Run());
return(this.Populate(libraryItem, libraryHierarchy, value, parentId, isLeaf));
}
private async Task <int> Populate(LibraryItem libraryItem, LibraryHierarchy libraryHierarchy, string value, int?parentId, bool isLeaf)
{
#if NET40
this.Semaphore.Wait();
#else
await this.Semaphore.WaitAsync().ConfigureAwait(false);
#endif
try
{
return(await this.Writer.Write(libraryHierarchy, libraryItem.Id, parentId, value, isLeaf).ConfigureAwait(false));
}
finally
{
this.Semaphore.Release();
}
}
private void AssertLibraryHierarchy(LibraryHierarchy hierarchy, IEnumerable <LibraryHierarchyNode> nodes, string[] fileNames)
{
var selector = default(Func <LibraryHierarchyNode, IEnumerable <LibraryHierarchyNode> >);
selector = node =>
{
if (node.IsLeaf)
{
return(new[] { node });
}
node.IsExpanded = true;
return(node.Children.SelectMany(selector));
};
var leaves = nodes.SelectMany(selector);
Assert.AreEqual(fileNames.Count(), leaves.Count());
}
public static Task RemoveHierarchies(IDatabaseComponent database, LibraryHierarchy libraryHierarchy, LibraryItemStatus?status, ITransactionSource transaction)
{
return(database.ExecuteAsync(database.Queries.RemoveLibraryHierarchyItems, (parameters, phase) =>
{
switch (phase)
{
case DatabaseParameterPhase.Fetch:
if (libraryHierarchy != null)
{
parameters["libraryHierarchyId"] = libraryHierarchy.Id;
}
if (status.HasValue)
{
parameters["status"] = status;
}
break;
}
}, transaction));
}
protected virtual void RefreshSelectedItem(LibraryHierarchy libraryHierarchy)
{
if (this._SelectedItem == null)
{
return;
}
var selectedItem = default(LibraryHierarchyNode);
if (!this._SelectedItem.TryGetValue(libraryHierarchy, out selectedItem))
{
return;
}
if (selectedItem != null)
{
selectedItem = this.HierarchyBrowser.GetNode(libraryHierarchy, selectedItem);
if (selectedItem != null)
{
Logger.Write(this, LogLevel.Debug, "Refreshed selected item: {0} => {1}", selectedItem.Id, selectedItem.Value);
}
else
{
Logger.Write(this, LogLevel.Debug, "Failed to refresh selected item, it was removed.");
}
}
if (selectedItem == null)
{
selectedItem = this.HierarchyBrowser.GetNodes(libraryHierarchy).FirstOrDefault();
if (selectedItem != null)
{
Logger.Write(this, LogLevel.Debug, "Selected first item: {0} => {1}", selectedItem.Id, selectedItem.Value);
}
else
{
Logger.Write(this, LogLevel.Warn, "Failed to select an item, perhaps none are available?");
}
}
if (object.ReferenceEquals(this._SelectedItem[libraryHierarchy], selectedItem))
{
return;
}
this._SelectedItem[libraryHierarchy] = selectedItem;
}
private async Task Populate(LibraryItem libraryItem, LibraryHierarchy libraryHierarchy, LibraryHierarchyLevel[] libraryHierarchyLevels)
{
var parentId = default(int?);
switch (libraryHierarchy.Type)
{
case LibraryHierarchyType.Script:
for (int a = 0, b = libraryHierarchyLevels.Length - 1; a <= b; a++)
{
parentId = await this.Populate(libraryItem, libraryHierarchy, libraryHierarchyLevels[a], parentId, a == b);
}
break;
case LibraryHierarchyType.FileSystem:
var pathSegments = this.GetPathSegments(libraryItem.FileName);
for (int a = 0, b = pathSegments.Length - 1; a <= b; a++)
{
parentId = await this.Populate(libraryItem, libraryHierarchy, pathSegments[a], parentId, a == b);
}
break;
}
}
public LibraryHierarchyNode[] GetNodes(LibraryHierarchy libraryHierarchy, string filter)
{
var key = new LibraryHierarchyCacheKey(libraryHierarchy, null, filter);
return(this.LibraryHierarchyCache.GetNodes(key, () => this.GetNodesCore(libraryHierarchy, filter)));
}
public LibraryHierarchyNode[] GetNodes(LibraryHierarchy libraryHierarchy)
{
return(this.GetNodes(libraryHierarchy, this.Filter));
}
private IEnumerable <LibraryHierarchyNode> GetNodesCore(LibraryHierarchy libraryHierarchy)
{
return(this.GetNodes(libraryHierarchy.Id));
}