protected void GenerateSqlOrder(ISqlDumper dmp, IDataSynAdapter sada, SynSourceInfo info, SynQueryType qtype)
{
if (qtype == SynQueryType.SelectKeyMd5 || qtype == SynQueryType.SelectKeyNull)
{
dmp.Put(" order by %,i", (IEnumerable <string>)info.KeyCols);
}
}
public override void GenerateSql(ISqlDumper dmp, IDataSynAdapter sada, SynSourceInfo info, SynQueryType qtype, Action <ISqlDumper> putCondition)
{
GenerateSqlToFrom(dmp, sada, info, qtype);
dmp.Put("%f", Table);
if (putCondition != null)
{
putCondition(dmp);
}
GenerateSqlOrder(dmp, sada, info, qtype);
}
private void DoLoadFootprint(IDatabaseSource conn, SynSourceInfo info, string cacheFile)
{
// HACK: external sorting must be implemented
using (var fw = new FileStream(cacheFile, FileMode.Create))
{
var fts = new List <SynFootprint>();
using (var bw = new BinaryWriter(fw))
{
var sada = conn.Dialect.CreateDataSynAdapter();
if (sada == null)
{
throw new ExpectedError("DAE-00365 " + Texts.Get("s_dialect_doesnt_support_sync$dialect", "dialect", conn.Dialect.DisplayName));
}
var qbuf = new StringWriter();
var dmp = conn.Dialect.CreateDumper(qbuf);
var qtype = m_options.Update == true ? SynQueryType.SelectKeyMd5 : SynQueryType.SelectKeyNull;
info.Query.GenerateSql(dmp, sada, info, qtype, d2 =>
{
if (!info.SqlCondition.IsEmpty())
{
d2.Put(" ^where ");
d2.WriteRaw(info.SqlCondition);
}
});
using (var cmd = conn.Connection.SystemConnection.CreateCommand())
{
cmd.CommandText = qbuf.ToString();
using (IBedReader reader = conn.GetAnyDDA().AdaptReader(cmd.ExecuteReader()))
{
while (reader.Read())
{
var ft = SynFootprint.FromReader(reader, info.KeyCols.Length, m_holder, m_conv, sada);
fts.Add(ft);
}
}
}
fts.Sort();
foreach (var ft in fts)
{
bw.Write((byte)0);
ft.SaveToStream(bw);
}
bw.Write((byte)1);
}
}
}
private void AssignColsAndQuery(SynSourceInfo source, SynSourceInfo target, IDatabaseSource srcConn, IDatabaseSource dstConn, string[] srcCols, string[] dstCols)
{
source.Query = Source.GetReadQuery(srcConn.Dialect, srcCols);
target.Query = Target.GetReadQuery(dstConn.Dialect, dstCols);
var map = new Dictionary <string, string>();
for (int i = 0; i < srcCols.Length; i++)
{
map[dstCols[i]] = srcCols[i];
}
foreach (var c in target.KeyCols)
{
if (!map.ContainsKey(c))
{
throw new DataSynError(String.Format("DAE-00320 Key column {0} of table {1} is not synchronized", c, Target.Table));
}
}
source.KeyCols = (from c in target.KeyCols select map[c]).ToArray();
target.DataCols = (from c in dstCols where !target.KeyCols.Contains(c) select c).ToArray();
source.DataCols = (from c in target.DataCols select map[c]).ToArray();
}
protected void GenerateSqlToFrom(ISqlDumper dmp, IDataSynAdapter sada, SynSourceInfo info, SynQueryType qtype)
{
dmp.Put("^select %,i", (IEnumerable <string>)info.KeyCols);
if (qtype == SynQueryType.SelectKeyMd5)
{
var colexprs = new List <string>();
bool was = false;
foreach (string col in info.CompareCols)
{
if (was)
{
colexprs.Add("'(SEP#n3f9)'");
}
var type = info.Model.Columns[col].DataType;
colexprs.Add(sada.Coalesce(sada.GetHashableString(dmp.Dialect.QuoteIdentifier(col), type), "'(NULL#093foew)'"));
was = true;
}
if (colexprs.Count == 0)
{
colexprs.Add("'(NONEswgg5)'");
}
dmp.Put(",");
dmp.WriteRaw(sada.Md5(sada.Concat(colexprs)));
}
if (qtype == SynQueryType.SelectKeyNull)
{
dmp.Put(",^null");
}
if (qtype == SynQueryType.SelectAll)
{
if (info.DataCols.Length > 0)
{
dmp.Put(",%,i", (IEnumerable <string>)info.DataCols);
}
}
dmp.Put(" from ");
}
// loads keys and data hash into cache file, data is ordered by keycols
private void LoadFootprint(IDatabaseSource conn, SynSourceInfo info, string cacheFile)
{
conn.Connection.Invoke(() => DoLoadFootprint(conn, info, cacheFile));
}
private string CreateQuery(IEnumerable <string[]> keys, IDatabaseSource dbconn, IDataSynAdapter sada, SynSourceInfo info)
{
var sw = new StringWriter();
var dmp = dbconn.Dialect.CreateDumper(sw);
m_srcInfo.Query.GenerateSql(dmp, sada, info, SynQueryType.SelectAll, d => { d.Put(" where "); PutConditionList(d, keys); });
//dmp.Put("select %,i, %,i from (%s) sub where ", m_srcInfo.KeyCols, m_srcInfo.DataCols, m_srcInfo.ReadQuery);
//PutConditionList(dmp, keys);
return(sw.ToString());
}
private void FillGridTable(IEnumerable <string[]> keys, GridTable grid, IDatabaseSource conn, IDataSynAdapter sada, SynSourceInfo info)
{
string query = CreateQuery(keys, conn, sada, info);
using (var cmd = conn.Connection.SystemConnection.CreateCommand())
{
cmd.CommandText = query;
using (IBedReader reader = conn.GetAnyDDA().AdaptReader(cmd.ExecuteReader()))
{
grid.Fill(reader);
}
}
}
private void AssignCompareCols(SynSourceInfo source, SynSourceInfo target, IDatabaseSource srcConn, IDatabaseSource dstConn, string[] srcCols, string[] dstCols)
{
source.CompareCols = srcCols;
target.CompareCols = dstCols;
}
public void BuildInfo(IDatabaseSource srcConn, IDatabaseSource dstConn, out SynSourceInfo source, out SynSourceInfo target)
{
source = new SynSourceInfo();
target = new SynSourceInfo();
if (!(Source is DataSynQuerySource))
{
source.SqlCondition = Source.SqlCondition;
}
target.SqlCondition = Target.SqlCondition;
source.Model = Source.GetModel(srcConn);
target.Model = Target.GetModel(dstConn);
if (KeyColsOverride != null)
{
target.KeyCols = KeyColsOverride.ToArray();
}
else
{
target.KeyCols = target.Model.GetPkColumns().GetNames();
}
if (target.KeyCols.Length == 0)
{
throw new DataSynError("DAE-00319 Table " + target.Model.FullName.ToString() + " has empty synchronize key or table has not primary key");
}
SynColMapping map = null;
if (ColMode != ColumnMode.CustomMapping)
{
map = SynColMapping.CreateMapping(source.Model, target.Model);
}
else
{
map = SynColMapping.CreateMapping(SelectedMapping);
}
switch (ColMode)
{
case ColumnMode.All:
AssignColsAndQuery(source, target, srcConn, dstConn, map.SourceCols, map.TargetCols);
break;
case ColumnMode.Selected:
AssignColsAndQuery(source, target, srcConn, dstConn, map[SelectedColumns], SelectedColumns.ToArray());
break;
case ColumnMode.AllExceptSelected:
string[] selcols = map.Complement(SelectedNoColumns);
AssignColsAndQuery(source, target, srcConn, dstConn, map[selcols], selcols);
break;
case ColumnMode.CustomMapping:
AssignColsAndQuery(source, target, srcConn, dstConn, SelectedMapping.Values.ToArray(), SelectedMapping.Keys.ToArray());
break;
}
switch (CompareColMode)
{
case ColumnMode.All:
AssignCompareCols(source, target, srcConn, dstConn, source.DataCols, target.DataCols);
break;
case ColumnMode.Selected:
AssignCompareCols(source, target, srcConn, dstConn, map[CompareColsOverride], CompareColsOverride.ToArray());
break;
case ColumnMode.AllExceptSelected:
string[] ccols = ArrayTool.Difference(target.DataCols, CompareNoColsOverride);
AssignCompareCols(source, target, srcConn, dstConn, map[ccols], ccols.ToArray());
break;
}
}
public abstract void GenerateSql(ISqlDumper dmp, IDataSynAdapter sada, SynSourceInfo info, SynQueryType qtype, Action <ISqlDumper> putCondition);
