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good bye ADO.NET to assets, notice faster startup time

ThreadPoolClientBranch
Sean Dague 2008-01-14 20:42:27 +00:00
parent db40ffb43f
commit 20cf62b417
1 changed files with 67 additions and 104 deletions
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159
OpenSim/Framework/Data.SQLite/SQLiteAssetData.cs
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@ -45,76 +45,86 @@ namespace OpenSim.Framework.Data.SQLite
/// <summary>
/// Artificial constructor called upon plugin load
/// </summary>
private const string SelectAssetSQL = "select * from assets where UUID=:UUID";
private const string DeleteAssetSQL = "delete from assets where UUID=:UUID";
private const string InsertAssetSQL = "insert into assets(UUID, Name, Description, Type, InvType, Local, Temporary, Data) values(:UUID, :Name, :Description, :Type, :InvType, :Local, :Temporary, :Data)";
private const string UpdateAssetSQL = "update assets set Name=:Name, Description=:Description, Type=:Type, InvType=:InvType, Local=:Local, Temporary=:Temporary, Data=:Data where UUID=:UUID";
private const string assetSelect = "select * from assets";
private DataSet ds;
private SqliteDataAdapter da;
private SqliteConnection m_conn;
public void Initialise(string dbfile, string dbname)
{
SqliteConnection conn = new SqliteConnection("URI=file:" + dbfile + ",version=3");
TestTables(conn);
ds = new DataSet();
da = new SqliteDataAdapter(new SqliteCommand(assetSelect, conn));
lock (ds)
{
ds.Tables.Add(createAssetsTable());
setupAssetCommands(da, conn);
try
{
da.Fill(ds.Tables["assets"]);
}
catch (Exception e)
{
MainLog.Instance.Verbose("SQLITE", e.ToString());
}
}
m_conn = new SqliteConnection("URI=file:" + dbfile + ",version=3");
m_conn.Open();
TestTables(m_conn);
return;
}
public AssetBase FetchAsset(LLUUID uuid)
{
AssetBase asset = new AssetBase();
DataRow row = ds.Tables["assets"].Rows.Find(Util.ToRawUuidString(uuid));
if (row != null)
using (SqliteCommand cmd = new SqliteCommand(SelectAssetSQL, m_conn))
{
return buildAsset(row);
cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.UUID.ToString()));
using (IDataReader reader = cmd.ExecuteReader())
{
reader.Read();
if (reader != null)
{
return buildAsset(reader);
}
else
{
return null;
}
}
}
}
public void CreateAsset(AssetBase asset)
{
// no difference for now
if (ExistsAsset(asset.FullID))
{
UpdateAsset(asset);
}
else
{
using (SqliteCommand cmd = new SqliteCommand(InsertAssetSQL, m_conn))
{
cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.UUID.ToString()));
cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
cmd.Parameters.Add(new SqliteParameter(":InvType", asset.InvType));
cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));
cmd.ExecuteNonQuery();
}
}
}
public void UpdateAsset(AssetBase asset)
{
LogAssetLoad(asset);
DataTable assets = ds.Tables["assets"];
lock (ds)
using (SqliteCommand cmd = new SqliteCommand(UpdateAssetSQL, m_conn))
{
DataRow row = assets.Rows.Find(Util.ToRawUuidString(asset.FullID));
if (row == null)
{
row = assets.NewRow();
fillAssetRow(row, asset);
assets.Rows.Add(row);
}
else
{
fillAssetRow(row, asset);
}
cmd.Parameters.Add(new SqliteParameter(":UUID", asset.FullID.UUID.ToString()));
cmd.Parameters.Add(new SqliteParameter(":Name", asset.Name));
cmd.Parameters.Add(new SqliteParameter(":Description", asset.Description));
cmd.Parameters.Add(new SqliteParameter(":Type", asset.Type));
cmd.Parameters.Add(new SqliteParameter(":InvType", asset.InvType));
cmd.Parameters.Add(new SqliteParameter(":Local", asset.Local));
cmd.Parameters.Add(new SqliteParameter(":Temporary", asset.Temporary));
cmd.Parameters.Add(new SqliteParameter(":Data", asset.Data));
cmd.ExecuteNonQuery();
}
}
private void LogAssetLoad(AssetBase asset)
@ -130,30 +140,27 @@ namespace OpenSim.Framework.Data.SQLite
public bool ExistsAsset(LLUUID uuid)
{
DataRow row = ds.Tables["assets"].Rows.Find(Util.ToRawUuidString(uuid));
return (row != null);
return (FetchAsset(uuid) != null);
}
public void DeleteAsset(LLUUID uuid)
{
lock (ds)
using (SqliteCommand cmd = new SqliteCommand(DeleteAssetSQL, m_conn))
{
DataRow row = ds.Tables["assets"].Rows.Find(Util.ToRawUuidString(uuid));
if (row != null)
{
row.Delete();
}
cmd.Parameters.Add(new SqliteParameter(":UUID", uuid.UUID.ToString()));
cmd.ExecuteNonQuery();
}
}
public void CommitAssets() // force a sync to the database
{
MainLog.Instance.Verbose("SQLITE", "Attempting commit");
lock (ds)
{
da.Update(ds, "assets");
ds.AcceptChanges();
}
// lock (ds)
// {
// da.Update(ds, "assets");
// ds.AcceptChanges();
// }
}
/***********************************************************************
@ -189,7 +196,7 @@ namespace OpenSim.Framework.Data.SQLite
*
**********************************************************************/
private AssetBase buildAsset(DataRow row)
private AssetBase buildAsset(IDataReader row)
{
// TODO: this doesn't work yet because something more
// interesting has to be done to actually get these values
@ -208,34 +215,6 @@ namespace OpenSim.Framework.Data.SQLite
}
private void fillAssetRow(DataRow row, AssetBase asset)
{
row["UUID"] = Util.ToRawUuidString(asset.FullID);
row["Name"] = asset.Name;
if (asset.Description != null)
{
row["Description"] = asset.Description;
}
else
{
row["Description"] = " ";
}
row["Type"] = asset.Type;
row["InvType"] = asset.InvType;
row["Local"] = asset.Local;
row["Temporary"] = asset.Temporary;
row["Data"] = asset.Data;
// ADO.NET doesn't handle NULL very well
foreach (DataColumn col in ds.Tables["assets"].Columns)
{
if (row[col] == null)
{
row[col] = "";
}
}
}
/***********************************************************************
*
* Database Binding functions
@ -245,27 +224,11 @@ namespace OpenSim.Framework.Data.SQLite
*
**********************************************************************/
private void setupAssetCommands(SqliteDataAdapter da, SqliteConnection conn)
{
da.InsertCommand = createInsertCommand("assets", ds.Tables["assets"]);
da.InsertCommand.Connection = conn;
da.UpdateCommand = createUpdateCommand("assets", "UUID=:UUID", ds.Tables["assets"]);
da.UpdateCommand.Connection = conn;
SqliteCommand delete = new SqliteCommand("delete from assets where UUID = :UUID");
delete.Parameters.Add(createSqliteParameter("UUID", typeof (String)));
delete.Connection = conn;
da.DeleteCommand = delete;
}
private void InitDB(SqliteConnection conn)
{
string createAssets = defineTable(createAssetsTable());
SqliteCommand pcmd = new SqliteCommand(createAssets, conn);
conn.Open();
pcmd.ExecuteNonQuery();
conn.Close();
}
private bool TestTables(SqliteConnection conn)