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Overview
| Comment: | The 'Apply' methods logically belong to the change set, not the session. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | sessions |
| Files: | files | file ages | folders |
| SHA1: |
baed0aa5035d4de06832a3a454144d93 |
| User & Date: | mistachkin 2017-10-05 22:55:27 |
Context
|
2017-10-05
| ||
| 23:10 | Cleanup integration between the session extension classes and the SQLiteConnection class. check-in: 7529b50e97 user: mistachkin tags: sessions | |
| 22:55 | The 'Apply' methods logically belong to the change set, not the session. check-in: baed0aa503 user: mistachkin tags: sessions | |
| 22:33 | Further refinements. check-in: a16ea17d38 user: mistachkin tags: sessions | |
Changes
Changes to System.Data.SQLite/SQLiteSessions.cs.
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#region Session Extension Interfaces
public interface ISQLiteChangeSet
{
bool? IsPatchSet { get; }
ISQLiteChangeSet Invert();
ISQLiteChangeSet CombineWith(ISQLiteChangeSet changeSet);
}
///////////////////////////////////////////////////////////////////////////
public interface ISQLiteChangeGroup
{
void AddChangeSet(byte[] rawData);
................................................................................
void CreatePatchSet(ref byte[] rawData);
void CreatePatchSet(Stream stream);
void LoadDifferencesFromTable(
string fromDatabaseName,
string tableName
);
void ApplyChangeSet(
byte[] rawData,
SessionConflictCallback conflictCallback,
object clientData
);
void ApplyChangeSet(
Stream stream,
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
);
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeSetIterator Class
internal sealed class SQLiteChangeSetIterator : IDisposable
................................................................................
if (pError != IntPtr.Zero)
{
SQLiteMemory.Free(pError);
pError = IntPtr.Zero;
}
}
}
///////////////////////////////////////////////////////////////////////
public void ApplyChangeSet(
byte[] rawData,
SessionConflictCallback conflictCallback,
object clientData
)
{
CheckDisposed();
SQLiteConnectionFlags flags = GetConnectionFlags();
int nData = 0;
IntPtr pData = IntPtr.Zero;
UnsafeNativeMethods.xSessionConflict xConflict =
new UnsafeNativeMethods.xSessionConflict(
delegate(IntPtr context,
SQLiteChangeSetConflictType type,
IntPtr iterator)
{
ISQLiteChangeSetMetadataItem item = null;
try
{
return conflictCallback(clientData, type, item);
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xConflict\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
SQLiteConnectionHandle handle = SQLiteConnection.GetNativeHandle(
connection);
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply(
handle, nData, pData, null, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply");
}
///////////////////////////////////////////////////////////////////////
public void ApplyChangeSet(
Stream stream,
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
)
{
CheckDisposed();
SQLiteConnectionFlags flags = GetConnectionFlags();
UnsafeNativeMethods.xSessionFilter xFilter =
new UnsafeNativeMethods.xSessionFilter(
delegate(IntPtr context, byte[] tblName)
{
try
{
string name = SQLiteString.GetStringFromUtf8Bytes(
tblName);
return tableFilterCallback(clientData, name) ? 1 : 0;
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xFilter\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return 0;
});
UnsafeNativeMethods.xSessionConflict xConflict =
new UnsafeNativeMethods.xSessionConflict(
delegate(IntPtr context,
SQLiteChangeSetConflictType type,
IntPtr iterator)
{
ISQLiteChangeSetMetadataItem item = null;
try
{
return conflictCallback(clientData, type, item);
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xConflict\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
SQLiteConnectionHandle handle = SQLiteConnection.GetNativeHandle(
connection);
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply_strm(
handle, new SQLiteStreamAdapter(stream, flags).xInput,
IntPtr.Zero, xFilter, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply_strm");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
public void Dispose()
{
................................................................................
#region SQLiteMemoryChangeSet Class
public sealed class SQLiteMemoryChangeSet :
ISQLiteChangeSet, IEnumerable<ISQLiteChangeSetMetadataItem>,
IDisposable
{
#region Private Data
private byte[] rawData;
private bool? isPatchSet;
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Constructors
internal SQLiteMemoryChangeSet(
byte[] rawData,
bool? isPatchSet
)
{
this.rawData = rawData;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeSet Members
................................................................................
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
throw new NotImplementedException();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
{
................................................................................
#region SQLiteStreamChangeSet Class
public sealed class SQLiteStreamChangeSet :
ISQLiteChangeSet, IEnumerable<ISQLiteChangeSetMetadataItem>,
IDisposable
{
#region Private Data
private Stream stream;
private SQLiteConnectionFlags flags;
private bool? isPatchSet;
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Constructors
internal SQLiteStreamChangeSet(
Stream stream,
SQLiteConnectionFlags flags,
bool? isPatchSet
)
{
this.stream = stream;
this.flags = flags;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
................................................................................
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
throw new NotImplementedException();
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
{
................................................................................
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeSetMetadataItem Class
public sealed class SQLiteChangeSetMetadataItem
: ISQLiteChangeSetMetadataItem, IDisposable
{
#region Private Data
private IntPtr iterator;
#endregion
///////////////////////////////////////////////////////////////////////
|
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#region Session Extension Interfaces
public interface ISQLiteChangeSet
{
bool? IsPatchSet { get; }
ISQLiteChangeSet Invert();
ISQLiteChangeSet CombineWith(ISQLiteChangeSet changeSet);
void Apply(
SessionConflictCallback conflictCallback,
object clientData
);
void Apply(
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
);
}
///////////////////////////////////////////////////////////////////////////
public interface ISQLiteChangeGroup
{
void AddChangeSet(byte[] rawData);
................................................................................
void CreatePatchSet(ref byte[] rawData);
void CreatePatchSet(Stream stream);
void LoadDifferencesFromTable(
string fromDatabaseName,
string tableName
);
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeSetIterator Class
internal sealed class SQLiteChangeSetIterator : IDisposable
................................................................................
if (pError != IntPtr.Zero)
{
SQLiteMemory.Free(pError);
pError = IntPtr.Zero;
}
}
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
public void Dispose()
{
................................................................................
#region SQLiteMemoryChangeSet Class
public sealed class SQLiteMemoryChangeSet :
ISQLiteChangeSet, IEnumerable<ISQLiteChangeSetMetadataItem>,
IDisposable
{
#region Private Data
private byte[] rawData;
private SQLiteConnectionHandle handle;
private SQLiteConnectionFlags flags;
private bool? isPatchSet;
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Constructors
internal SQLiteMemoryChangeSet(
byte[] rawData,
SQLiteConnectionHandle handle,
SQLiteConnectionFlags flags,
bool? isPatchSet
)
{
this.rawData = rawData;
this.handle= handle;
this.flags = flags;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteChangeSet Members
................................................................................
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
throw new NotImplementedException();
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
object clientData
)
{
CheckDisposed();
Apply(conflictCallback, null, clientData);
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
)
{
if (conflictCallback == null)
throw new ArgumentNullException("conflictCallback");
CheckDisposed();
UnsafeNativeMethods.xSessionFilter xFilter = null;
if (tableFilterCallback != null)
{
xFilter = new UnsafeNativeMethods.xSessionFilter(
delegate(IntPtr context, byte[] tblName)
{
try
{
string name = SQLiteString.GetStringFromUtf8Bytes(
tblName);
return tableFilterCallback(clientData, name) ? 1 : 0;
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xFilter\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return 0;
});
}
UnsafeNativeMethods.xSessionConflict xConflict;
xConflict = new UnsafeNativeMethods.xSessionConflict(
delegate(IntPtr context,
SQLiteChangeSetConflictType type,
IntPtr iterator)
{
ISQLiteChangeSetMetadataItem item = null;
try
{
return conflictCallback(clientData, type, item);
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xConflict\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
int nData = 0;
IntPtr pData = IntPtr.Zero;
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply(
handle, nData, pData, xFilter, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
{
................................................................................
#region SQLiteStreamChangeSet Class
public sealed class SQLiteStreamChangeSet :
ISQLiteChangeSet, IEnumerable<ISQLiteChangeSetMetadataItem>,
IDisposable
{
#region Private Data
private Stream stream;
private SQLiteConnectionHandle handle;
private SQLiteConnectionFlags flags;
private bool? isPatchSet;
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Constructors
internal SQLiteStreamChangeSet(
Stream stream,
SQLiteConnectionHandle handle,
SQLiteConnectionFlags flags,
bool? isPatchSet
)
{
this.stream = stream;
this.handle = handle;
this.flags = flags;
this.isPatchSet = isPatchSet;
}
#endregion
///////////////////////////////////////////////////////////////////////
................................................................................
ISQLiteChangeSet changeSet
)
{
CheckDisposed();
throw new NotImplementedException();
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
object clientData
)
{
CheckDisposed();
throw new NotImplementedException();
}
///////////////////////////////////////////////////////////////////////
public void Apply(
SessionConflictCallback conflictCallback,
SessionTableFilterCallback tableFilterCallback,
object clientData
)
{
CheckDisposed();
UnsafeNativeMethods.xSessionFilter xFilter;
xFilter = new UnsafeNativeMethods.xSessionFilter(
delegate(IntPtr context, byte[] tblName)
{
try
{
string name = SQLiteString.GetStringFromUtf8Bytes(
tblName);
return tableFilterCallback(clientData, name) ? 1 : 0;
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xFilter\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return 0;
});
UnsafeNativeMethods.xSessionConflict xConflict;
xConflict = new UnsafeNativeMethods.xSessionConflict(
delegate(IntPtr context,
SQLiteChangeSetConflictType type,
IntPtr iterator)
{
ISQLiteChangeSetMetadataItem item = null;
try
{
return conflictCallback(clientData, type, item);
}
catch (Exception e)
{
try
{
if ((flags & SQLiteConnectionFlags.LogCallbackException) ==
SQLiteConnectionFlags.LogCallbackException)
{
SQLiteLog.LogMessage(SQLiteBase.COR_E_EXCEPTION,
HelperMethods.StringFormat(CultureInfo.CurrentCulture,
"Caught exception in \"xConflict\" method: {0}",
e)); /* throw */
}
}
catch
{
// do nothing.
}
}
return SQLiteChangeSetConflictResult.Abort;
});
SQLiteErrorCode rc = UnsafeNativeMethods.sqlite3changeset_apply_strm(
handle, new SQLiteStreamAdapter(stream, flags).xInput,
IntPtr.Zero, xFilter, xConflict, IntPtr.Zero);
if (rc != SQLiteErrorCode.Ok)
throw new SQLiteException(rc, "sqlite3changeset_apply_strm");
}
#endregion
///////////////////////////////////////////////////////////////////////
#region IEnumerable<ISQLiteChangeSetMetadataItem> Members
public IEnumerator<ISQLiteChangeSetMetadataItem> GetEnumerator()
{
................................................................................
#endregion
}
#endregion
///////////////////////////////////////////////////////////////////////////
#region SQLiteChangeSetMetadataItem Class
public sealed class SQLiteChangeSetMetadataItem :
ISQLiteChangeSetMetadataItem, IDisposable
{
#region Private Data
private IntPtr iterator;
#endregion
///////////////////////////////////////////////////////////////////////
|