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Code Issues Actions 7 Packages Projects Releases Wiki Activity

move child definitions to db

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This commit is contained in:
Luke Pulverenti
2013-06-20 12:44:24 -04:00
parent 6f15aeccd0
commit 6bc263052d
15 changed files with 249 additions and 47 deletions
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6
MediaBrowser.Server.Implementations/MediaBrowser.Server.Implementations.csproj
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@@ -64,6 +64,12 @@
<SpecificVersion>False</SpecificVersion>
<HintPath>..\packages\ServiceStack.Common.3.9.54\lib\net35\ServiceStack.Interfaces.dll</HintPath>
</Reference>
<Reference Include="ServiceStack.OrmLite">
<HintPath>..\packages\ServiceStack.OrmLite.Sqlite32.3.9.54\lib\net40\ServiceStack.OrmLite.dll</HintPath>
</Reference>
<Reference Include="ServiceStack.OrmLite.SqliteNET">
<HintPath>..\packages\ServiceStack.OrmLite.Sqlite32.3.9.54\lib\net40\ServiceStack.OrmLite.SqliteNET.dll</HintPath>
</Reference>
<Reference Include="ServiceStack.OrmLite.SqlServer, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\packages\ServiceStack.OrmLite.SqlServer.3.9.43\lib\ServiceStack.OrmLite.SqlServer.dll</HintPath>

9
MediaBrowser.Server.Implementations/Persistence/SqliteChapterRepository.cs
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@@ -27,16 +27,13 @@ namespace MediaBrowser.Server.Implementations.Persistence
private SQLiteCommand _saveChapterCommand;
/// <summary>
/// Initializes a new instance of the <see cref="SqliteItemRepository"/> class.
/// Initializes a new instance of the <see cref="SqliteItemRepository" /> class.
/// </summary>
/// <param name="appPaths">The app paths.</param>
/// <param name="jsonSerializer">The json serializer.</param>
/// <param name="logManager">The log manager.</param>
/// <exception cref="System.ArgumentNullException">
/// appPaths
/// <exception cref="System.ArgumentNullException">appPaths
/// or
/// jsonSerializer
/// </exception>
/// jsonSerializer</exception>
public SqliteChapterRepository(IApplicationPaths appPaths, ILogManager logManager)
{
if (appPaths == null)

129
MediaBrowser.Server.Implementations/Persistence/SqliteItemRepository.cs
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@@ -56,6 +56,9 @@ namespace MediaBrowser.Server.Implementations.Persistence
private SqliteChapterRepository _chapterRepository;
private SQLiteCommand _deleteChildrenCommand;
private SQLiteCommand _saveChildrenCommand;
/// <summary>
/// Initializes a new instance of the <see cref="SqliteItemRepository"/> class.
/// </summary>
@@ -95,7 +98,7 @@ namespace MediaBrowser.Server.Implementations.Persistence
public async Task Initialize()
{
var dbFile = Path.Combine(_appPaths.DataPath, "library.db");
_connection = await SqliteExtensions.ConnectToDb(dbFile).ConfigureAwait(false);
string[] queries = {
@@ -103,6 +106,9 @@ namespace MediaBrowser.Server.Implementations.Persistence
"create table if not exists baseitems (guid GUID primary key, data BLOB)",
"create index if not exists idx_baseitems on baseitems(guid)",
"create table if not exists ChildDefinitions (ParentId GUID, ItemId GUID, Type TEXT, PRIMARY KEY (ParentId, ItemId))",
"create index if not exists idx_baseitems on baseitems(ParentId,ItemId)",
//pragmas
"pragma temp_store = memory"
};
@@ -131,6 +137,22 @@ namespace MediaBrowser.Server.Implementations.Persistence
_saveItemCommand.Parameters.Add(new SQLiteParameter("@1"));
_saveItemCommand.Parameters.Add(new SQLiteParameter("@2"));
_deleteChildrenCommand = new SQLiteCommand
{
CommandText = "delete from ChildDefinitions where ParentId=@ParentId"
};
_deleteChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
_saveChildrenCommand = new SQLiteCommand
{
CommandText = "replace into ChildDefinitions (ParentId, ItemId, Type) values (@ParentId, @ItemId, @Type)"
};
_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ParentId"));
_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@ItemId"));
_saveChildrenCommand.Parameters.Add(new SQLiteParameter("@Type"));
}
/// <summary>
@@ -401,5 +423,110 @@ namespace MediaBrowser.Server.Implementations.Persistence
}
}
}
public IEnumerable<ChildDefinition> GetChildren(Guid parentId)
{
if (parentId == Guid.Empty)
{
throw new ArgumentNullException("parentId");
}
using (var cmd = _connection.CreateCommand())
{
cmd.CommandText = "select ItemId,Type from ChildDefinitions where ParentId = @ParentId";
cmd.Parameters.Add("@ParentId", DbType.Guid).Value = parentId;
using (var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess | CommandBehavior.SingleResult))
{
while (reader.Read())
{
yield return new ChildDefinition
{
ItemId = reader.GetGuid(0),
Type = reader.GetString(1)
};
}
}
}
}
public async Task SaveChildren(Guid parentId, IEnumerable<ChildDefinition> children, CancellationToken cancellationToken)
{
if (parentId == Guid.Empty)
{
throw new ArgumentNullException("parentId");
}
if (children == null)
{
throw new ArgumentNullException("children");
}
if (cancellationToken == null)
{
throw new ArgumentNullException("cancellationToken");
}
cancellationToken.ThrowIfCancellationRequested();
await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
SQLiteTransaction transaction = null;
try
{
transaction = _connection.BeginTransaction();
// First delete
_deleteChildrenCommand.Parameters[0].Value = parentId;
_deleteChildrenCommand.Transaction = transaction;
await _deleteChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
foreach (var chapter in children)
{
cancellationToken.ThrowIfCancellationRequested();
_saveChildrenCommand.Parameters[0].Value = parentId;
_saveChildrenCommand.Parameters[1].Value = chapter.ItemId;
_saveChildrenCommand.Parameters[2].Value = chapter.Type;
_saveChildrenCommand.Transaction = transaction;
await _saveChildrenCommand.ExecuteNonQueryAsync(cancellationToken);
}
transaction.Commit();
}
catch (OperationCanceledException)
{
if (transaction != null)
{
transaction.Rollback();
}
throw;
}
catch (Exception e)
{
_logger.ErrorException("Failed to save children:", e);
if (transaction != null)
{
transaction.Rollback();
}
throw;
}
finally
{
if (transaction != null)
{
transaction.Dispose();
}
_writeLock.Release();
}
}
}
}

1
MediaBrowser.Server.Implementations/packages.config
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@@ -10,6 +10,7 @@
<package id="ServiceStack" version="3.9.54" targetFramework="net45" />
<package id="ServiceStack.Api.Swagger" version="3.9.54" targetFramework="net45" />
<package id="ServiceStack.Common" version="3.9.54" targetFramework="net45" />
<package id="ServiceStack.OrmLite.Sqlite32" version="3.9.54" targetFramework="net45" />
<package id="ServiceStack.OrmLite.SqlServer" version="3.9.43" targetFramework="net45" />
<package id="ServiceStack.Redis" version="3.9.43" targetFramework="net45" />
<package id="ServiceStack.Text" version="3.9.54" targetFramework="net45" />