public async Task <bool> TableCreateNewColumnAsync(string tableName, string columnName, Type columnType, bool makeMatchIndex, bool makeRangeIndex, object defaultValue)
{
TableSetting ts = null;
bool enterTableLock = false;
try
{
if (defaultValue == null)
{
return(false);
}
if (!CheckDataType(columnType, defaultValue.ToString()))
{
return(false);
}
var db = this.redis.GetDatabase();
ts = await TableGetSettingAsync(tableName);
if (null == ts)
{
return(false);
}
enterTableLock = await TableLockEnterAsync(ts, "");
var cs = new ColumnSetting();
cs.indexNumber = ts.GetNextColumnIndexNumber();
cs.dataType = columnType;
cs.isMatchIndex = makeMatchIndex;
cs.isRangeIndex = makeRangeIndex;
cs.defaultValue = defaultValue;
if (cs.dataType == typeof(DateTime))
{
var dvt = defaultValue.ToString().ToLower();
if (dvt.Equals("now"))
{
defaultValue = DateTime.Now.ToString();
}
else if (dvt.Equals("utcnow"))
{
defaultValue = DateTime.UtcNow.ToString();
}
}
ts.tableSchemaDic.Add(columnName, cs);
if (makeMatchIndex)
{
ts.matchIndexColumnDic.Add(columnName, cs.indexNumber);
}
if (makeRangeIndex)
{
ts.rangeIndexColumnDic.Add(columnName, cs.indexNumber);
}
ts.columnIndexNameDic.Add(cs.indexNumber.ToString(), columnName);
var tableSchemaName = RedisKey.GetRedisKey_TableSchema(tableName);
var value = string.Format("{0},{1},{2},{3},{4},{5}", cs.indexNumber.ToString(), cs.dataType.ToString(), makeMatchIndex.ToString(), "False", makeRangeIndex.ToString(), defaultValue.ToString()); // fieldIndex, Type, IndexFlag, primaryKeyFlag, sortFlag
await db.HashSetAsync(tableSchemaName, columnName, value);
var tasklist = new List <Task <bool> >();
var key = RedisKey.GetRedisKey_TablePrimaryKeyList(tableName);
foreach (var primaryKeyValue in db.SetScan(key, "*"))
{
key = RedisKey.GetRedisKey_TableRow(ts.tableID, primaryKeyValue.ToString());
tasklist.Add(db.HashSetAsync(key, cs.indexNumber.ToString(), defaultValue.ToString()));
if (makeMatchIndex)
{
// make match index
key = RedisKey.GetRedisKey_TableMatchIndexColumn(ts.tableID, cs.indexNumber, defaultValue.ToString());
tasklist.Add(db.SetAddAsync(key, primaryKeyValue));
}
if (makeRangeIndex)
{
// make range index
key = RedisKey.GetRedisKey_TableRangeIndexColumn(ts.tableID, cs.indexNumber);
var score = ConvertToScore(cs.dataType, defaultValue.ToString());
tasklist.Add(db.SortedSetAddAsync(key, primaryKeyValue, score));
}
}
foreach (var t in tasklist)
{
if (!await t)
{
return(false);
}
}
return(true);
}
catch (Exception ex)
{
return(false);
}
finally
{
if (enterTableLock)
{
await TableLockExit(ts, "");
}
}
}
public async Task <TableSetting> TableGetSettingAsync(string tableName)
{
TableSetting ts;
var db = this.redis.GetDatabase();
if (!this.tableSettingDic.TryGetValue(tableName, out ts))
{
// 아직 로드되지 않았다. redis로부터 읽어들인다.
ts = new TableSetting();
ts.tableName = tableName;
// get table id
var tableID = await db.HashGetAsync(Consts.RedisKey_Hash_TableNameIds, tableName);
if (RedisValue.Null == tableID)
{
return(null);
}
ts.tableID = Convert.ToInt32(tableID.ToString());
// read table schema
var tableSchema = await db.HashGetAllAsync(RedisKey.GetRedisKey_TableSchema(tableName));
if (null == tableSchema)
{
return(null);
}
// get table info
foreach (var e in tableSchema)
{
var tokens = e.Value.ToString().Split(',');
var cs = new ColumnSetting();
cs.indexNumber = Convert.ToInt32(tokens[0]);
switch (tokens[1])
{
case "System.Byte": cs.dataType = typeof(Byte); break;
case "System.Int16": cs.dataType = typeof(Int16); break;
case "System.UInt16": cs.dataType = typeof(UInt16); break;
case "System.Int32": cs.dataType = typeof(Int32); break;
case "System.UInt32": cs.dataType = typeof(UInt32); break;
case "System.Int64": cs.dataType = typeof(Int64); break;
case "System.UInt64": cs.dataType = typeof(UInt64); break;
case "System.Single": cs.dataType = typeof(Single); break;
case "System.Double": cs.dataType = typeof(Double); break;
case "System.String": cs.dataType = typeof(String); break;
case "System.DateTime": cs.dataType = typeof(DateTime); break;
}
if (tokens[5].Equals("null"))
{
cs.defaultValue = null;
}
else
{
switch (tokens[1])
{
case "System.Byte": cs.defaultValue = Convert.ToByte(tokens[5]); break;
case "System.Int16": cs.defaultValue = Convert.ToInt16(tokens[5]); break;
case "System.UInt16": cs.defaultValue = Convert.ToUInt16(tokens[5]); break;
case "System.Int32": cs.defaultValue = Convert.ToInt32(tokens[5]); break;
case "System.UInt32": cs.defaultValue = Convert.ToUInt32(tokens[5]); break;
case "System.Int64": cs.defaultValue = Convert.ToInt64(tokens[5]); break;
case "System.UInt64": cs.defaultValue = Convert.ToUInt64(tokens[5]); break;
case "System.Single": cs.defaultValue = Convert.ToSingle(tokens[5]); break;
case "System.Double": cs.defaultValue = Convert.ToDouble(tokens[5]); break;
case "System.String": cs.defaultValue = Convert.ToString(tokens[5]); break;
case "System.DateTime":
if (tokens[5].ToLower().Equals("now"))
{
cs.defaultValue = "now";
}
else if (tokens[5].ToLower().Equals("utcnow"))
{
cs.defaultValue = "utcnow";
}
else
{
cs.defaultValue = Convert.ToDateTime(tokens[5]);
}
break;
}
}
cs.isMatchIndex = Convert.ToBoolean(tokens[2]);
if (cs.isMatchIndex)
{
ts.matchIndexColumnDic.Add(e.Name.ToString(), cs.indexNumber);
}
var fieldPrimaryKeyFlag = Convert.ToBoolean(tokens[3]);
if (fieldPrimaryKeyFlag)
{
ts.primaryKeyColumnName = e.Name;
}
cs.isRangeIndex = Convert.ToBoolean(tokens[4]);
if (cs.isRangeIndex)
{
ts.rangeIndexColumnDic.Add(e.Name.ToString(), cs.indexNumber);
}
ts.columnIndexNameDic.Add(cs.indexNumber.ToString(), e.Name.ToString());
ts.tableSchemaDic.Add(e.Name.ToString(), cs);
}
this.tableSettingDic.TryAdd(tableName, ts);
}
return(ts);
}