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bulk save items when possible

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This commit is contained in:
Luke Pulverenti
2013-05-23 11:39:48 -04:00
parent 6253578629
commit f546f09c71
6 changed files with 80 additions and 44 deletions
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50
MediaBrowser.Server.Implementations/Library/LibraryManager.cs
View File

@@ -1036,21 +1036,40 @@ namespace MediaBrowser.Server.Implementations.Library
/// <param name="item">The item.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task CreateItem(BaseItem item, CancellationToken cancellationToken)
public Task CreateItem(BaseItem item, CancellationToken cancellationToken)
{
await SaveItem(item, cancellationToken).ConfigureAwait(false);
return CreateItems(new[] { item }, cancellationToken);
}
UpdateItemInLibraryCache(item);
/// <summary>
/// Creates the items.
/// </summary>
/// <param name="items">The items.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
public async Task CreateItems(IEnumerable<BaseItem> items, CancellationToken cancellationToken)
{
var list = items.ToList();
await ItemRepository.SaveItems(list, cancellationToken).ConfigureAwait(false);
foreach (var item in list)
{
UpdateItemInLibraryCache(item);
}
if (ItemAdded != null)
{
try
foreach (var item in list)
{
ItemAdded(this, new ItemChangeEventArgs { Item = item });
}
catch (Exception ex)
{
_logger.ErrorException("Error in ItemUpdated event handler", ex);
try
{
ItemAdded(this, new ItemChangeEventArgs { Item = item });
}
catch (Exception ex)
{
_logger.ErrorException("Error in ItemUpdated event handler", ex);
}
}
}
}
@@ -1063,7 +1082,7 @@ namespace MediaBrowser.Server.Implementations.Library
/// <returns>Task.</returns>
public async Task UpdateItem(BaseItem item, CancellationToken cancellationToken)
{
await SaveItem(item, cancellationToken).ConfigureAwait(false);
await ItemRepository.SaveItem(item, cancellationToken).ConfigureAwait(false);
UpdateItemInLibraryCache(item);
@@ -1099,17 +1118,6 @@ namespace MediaBrowser.Server.Implementations.Library
}
}
/// <summary>
/// Saves the item.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private Task SaveItem(BaseItem item, CancellationToken cancellationToken)
{
return ItemRepository.SaveItem(item, cancellationToken);
}
/// <summary>
/// Retrieves the item.
/// </summary>

44
MediaBrowser.Server.Implementations/Sqlite/SQLiteItemRepository.cs
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@@ -135,7 +135,7 @@ namespace MediaBrowser.Server.Implementations.Sqlite
/// <summary>
/// The _write lock
/// </summary>
private readonly SemaphoreSlim _writeLock = new SemaphoreSlim(1,1);
private readonly SemaphoreSlim _writeLock = new SemaphoreSlim(1, 1);
/// <summary>
/// Prepares the statements.
@@ -172,13 +172,34 @@ namespace MediaBrowser.Server.Implementations.Sqlite
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">item</exception>
public async Task SaveItem(BaseItem item, CancellationToken cancellationToken)
public Task SaveItem(BaseItem item, CancellationToken cancellationToken)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
return SaveItems(new[] { item }, cancellationToken);
}
/// <summary>
/// Saves the items.
/// </summary>
/// <param name="items">The items.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">
/// items
/// or
/// cancellationToken
/// </exception>
public async Task SaveItems(IEnumerable<BaseItem> items, CancellationToken cancellationToken)
{
if (items == null)
{
throw new ArgumentNullException("items");
}
if (cancellationToken == null)
{
throw new ArgumentNullException("cancellationToken");
@@ -186,8 +207,6 @@ namespace MediaBrowser.Server.Implementations.Sqlite
cancellationToken.ThrowIfCancellationRequested();
var serialized = _jsonSerializer.SerializeToBytes(item);
await _writeLock.WaitAsync(cancellationToken).ConfigureAwait(false);
SQLiteTransaction transaction = null;
@@ -196,13 +215,18 @@ namespace MediaBrowser.Server.Implementations.Sqlite
{
transaction = Connection.BeginTransaction();
_saveItemCommand.Parameters[0].Value = item.Id;
_saveItemCommand.Parameters[1].Value = item.GetType().FullName;
_saveItemCommand.Parameters[2].Value = serialized;
foreach (var item in items)
{
cancellationToken.ThrowIfCancellationRequested();
_saveItemCommand.Parameters[0].Value = item.Id;
_saveItemCommand.Parameters[1].Value = item.GetType().FullName;
_saveItemCommand.Parameters[2].Value = _jsonSerializer.SerializeToBytes(item);
_saveItemCommand.Transaction = transaction;
_saveItemCommand.Transaction = transaction;
await _saveItemCommand.ExecuteNonQueryAsync(cancellationToken);
await _saveItemCommand.ExecuteNonQueryAsync(cancellationToken);
}
transaction.Commit();
}
@@ -400,7 +424,7 @@ namespace MediaBrowser.Server.Implementations.Sqlite
foreach (var child in children)
{
_saveChildrenCommand.Transaction = transaction;
_saveChildrenCommand.Parameters[0].Value = id;
_saveChildrenCommand.Parameters[1].Value = child.Id;

2
MediaBrowser.Server.Implementations/Sqlite/SQLiteRepository.cs
View File

@@ -1,11 +1,9 @@
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Concurrent;
using System.Data;
using System.Data.Common;
using System.Data.SQLite;
using System.IO;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Server.Implementations.Sqlite