private Result ProcessDrop(Tokenizer tokenizer, Channel channel)
{
channel.CheckReadWrite();
channel.CheckAdmin();
string sToken = tokenizer.GetString();
if (sToken.Equals("TABLE"))
{
sToken = tokenizer.GetString();
if (sToken.Equals("IF"))
{
sToken = tokenizer.GetString(); // EXISTS
sToken = tokenizer.GetString(); // <table>
DropTable(sToken, true);
}
else
{
DropTable(sToken, false);
}
channel.Commit();
}
else if (sToken.Equals("USER"))
{
_access.DropUser(tokenizer.GetStringToken());
}
else if (sToken.Equals("INDEX"))
{
sToken = tokenizer.GetString();
if (!tokenizer.WasLongName)
{
throw Trace.Error(Trace.UnexpectedToken, sToken);
}
string table = tokenizer.LongNameFirst;
string index = tokenizer.LongNameLast;
Table t = GetTable(table, channel);
t.CheckDropIndex(index);
Table tn = t.MoveDefinition(index);
tn.MoveData(t);
DropTable(table);
LinkTable(tn);
channel.Commit();
}
else
{
throw Trace.Error(Trace.UnexpectedToken, sToken);
}
return(new Result());
}
private Result ProcessGrantOrRevoke(Tokenizer c, Channel channel, bool grant)
{
channel.CheckReadWrite();
channel.CheckAdmin();
AccessType right = AccessType.None;
string sToken;
do
{
string sRight = c.GetString();
right |= Access.GetRight(sRight);
sToken = c.GetString();
} while (sToken.Equals(","));
if (!sToken.Equals("ON"))
{
throw Trace.Error(Trace.UnexpectedToken, sToken);
}
string table = c.GetString();
if (table.Equals("CLASS"))
{
// object is saved as 'CLASS "java.lang.Math"'
// tables like 'CLASS "xy"' should not be created
table += " \"" + c.GetString() + "\"";
}
else
{
GetTable(table, channel); // to make sure the table exists
}
c.GetThis("TO");
string user = c.GetStringToken();
// string command;
if (grant)
{
_access.Grant(user, table, right);
// command = "GRANT";
}
else
{
_access.Revoke(user, table, right);
// command = "REVOKE";
}
return(new Result());
}
private Result ProcessCreate(Tokenizer tokenizer, Channel channel)
{
channel.CheckReadWrite();
channel.CheckAdmin();
string sToken = tokenizer.GetString();
switch (sToken)
{
case "TABLE":
ProcessCreateTable(tokenizer, channel, true);
break;
case "MEMORY":
tokenizer.GetThis("TABLE");
ProcessCreateTable(tokenizer, channel, false);
break;
case "CACHED":
tokenizer.GetThis("TABLE");
ProcessCreateTable(tokenizer, channel, true);
break;
case "USER":
{
string u = tokenizer.GetStringToken();
tokenizer.GetThis("PASSWORD");
string p = tokenizer.GetStringToken();
bool admin;
if (tokenizer.GetString().Equals("ADMIN"))
{
admin = true;
}
else
{
admin = false;
}
_access.CreateUser(u, p, admin);
}
break;
case "ALIAS":
{
string name = tokenizer.GetString();
sToken = tokenizer.GetString();
Trace.Check(sToken.Equals("FOR"), Trace.UnexpectedToken, sToken);
sToken = tokenizer.GetString();
_alias[name] = sToken;
}
break;
default:
{
bool unique = false;
if (sToken.Equals("UNIQUE"))
{
unique = true;
sToken = tokenizer.GetString();
}
if (!sToken.Equals("INDEX"))
{
throw Trace.Error(Trace.UnexpectedToken, sToken);
}
string name = tokenizer.GetName();
tokenizer.GetThis("ON");
Table t = GetTable(tokenizer.GetString(), channel);
AddIndexOn(tokenizer, channel, name, t, unique);
}
break;
}
return(new Result());
}
private Result ProcessSet(Tokenizer tokenizer, Channel channel)
{
string sToken = tokenizer.GetString();
switch (sToken)
{
case "PASSWORD":
channel.CheckReadWrite();
channel.SetPassword(tokenizer.GetStringToken());
break;
case "READONLY":
channel.Commit();
channel.SetReadOnly(ProcessTrueOrFalse(tokenizer));
break;
case "LOGSIZE":
{
channel.CheckAdmin();
int i = Int32.Parse(tokenizer.GetString());
if (_log != null)
{
_log.SetLogSize(i);
}
}
break;
case "IGNORECASE":
channel.CheckAdmin();
_ignoreCase = ProcessTrueOrFalse(tokenizer);
break;
case "MAXROWS":
{
int i = Int32.Parse(tokenizer.GetString());
channel.MaxRows = i;
break;
}
case "AUTOCOMMIT":
channel.SetAutoCommit(ProcessTrueOrFalse(tokenizer));
break;
case "TABLE":
{
channel.CheckReadWrite();
channel.CheckAdmin();
Table t = GetTable(tokenizer.GetString(), channel);
tokenizer.GetThis("INDEX");
tokenizer.GetString();
t.IndexRoots = (string)tokenizer.Value;
}
break;
case "REFERENCIAL_INTEGRITY":
case "REFERENTIAL_INTEGRITY":
channel.CheckAdmin();
_referentialIntegrity = ProcessTrueOrFalse(tokenizer);
break;
case "WRITE_DELAY":
{
channel.CheckAdmin();
bool delay = ProcessTrueOrFalse(tokenizer);
if (_log != null)
{
_log.SetWriteDelay(delay);
}
}
break;
default:
if (tokenizer.TokenType == TokenType.VARIABLE)
{
Parser p = new Parser(this, tokenizer, channel);
p.ProcessSet(sToken);
break;
}
throw Trace.Error(Trace.UnexpectedToken, sToken);
}
return(new Result());
}
private Result ProcessDrop(Tokenizer tokenizer, Channel channel)
{
channel.CheckReadWrite();
channel.CheckAdmin();
string sToken = tokenizer.GetString();
if (sToken.Equals("TABLE"))
{
sToken = tokenizer.GetString();
if (sToken.Equals("IF"))
{
sToken = tokenizer.GetString(); // EXISTS
sToken = tokenizer.GetString(); // <table>
DropTable(sToken, true);
}
else
{
DropTable(sToken, false);
}
channel.Commit();
}
else if (sToken.Equals("USER"))
{
_access.DropUser(tokenizer.GetStringToken());
}
else if (sToken.Equals("INDEX"))
{
sToken = tokenizer.GetString();
if (!tokenizer.WasLongName)
{
throw TracingHelper.Error(TracingHelper.UnexpectedToken, sToken);
}
string table = tokenizer.LongNameFirst;
string index = tokenizer.LongNameLast;
Table t = GetTable(table, channel);
t.CheckDropIndex(index);
Table tn = t.MoveDefinition(index);
tn.MoveData(t);
DropTable(table);
LinkTable(tn);
channel.Commit();
}
else
{
throw TracingHelper.Error(TracingHelper.UnexpectedToken, sToken);
}
return new Result();
}
private Result ProcessCreate(Tokenizer tokenizer, Channel channel)
{
channel.CheckReadWrite();
channel.CheckAdmin();
string sToken = tokenizer.GetString();
switch(sToken)
{
case "TABLE":
ProcessCreateTable(tokenizer, channel, true);
break;
case "MEMORY":
tokenizer.GetThis("TABLE");
ProcessCreateTable(tokenizer, channel, false);
break;
case "CACHED":
tokenizer.GetThis("TABLE");
ProcessCreateTable(tokenizer, channel, true);
break;
case "USER":
{
string u = tokenizer.GetStringToken();
tokenizer.GetThis("PASSWORD");
string p = tokenizer.GetStringToken();
bool admin;
if (tokenizer.GetString().Equals("ADMIN"))
{
admin = true;
}
else
{
admin = false;
}
_access.CreateUser(u, p, admin);
}
break;
case "ALIAS":
{
string name = tokenizer.GetString();
sToken = tokenizer.GetString();
TracingHelper.Check(sToken.Equals("FOR"), TracingHelper.UnexpectedToken, sToken);
sToken = tokenizer.GetString();
_alias[name] = sToken;
}
break;
default:
{
bool unique = false;
if (sToken.Equals("UNIQUE"))
{
unique = true;
sToken = tokenizer.GetString();
}
if (!sToken.Equals("INDEX"))
{
throw TracingHelper.Error(TracingHelper.UnexpectedToken, sToken);
}
string name = tokenizer.GetName();
tokenizer.GetThis("ON");
Table t = GetTable(tokenizer.GetString(), channel);
AddIndexOn(tokenizer, channel, name, t, unique);
}
break;
}
return new Result();
}
private Result ProcessSet(Tokenizer tokenizer, Channel channel)
{
string sToken = tokenizer.GetString();
switch(sToken)
{
case "PASSWORD":
channel.CheckReadWrite();
channel.SetPassword(tokenizer.GetStringToken());
break;
case "READONLY":
channel.Commit();
channel.SetReadOnly(ProcessTrueOrFalse(tokenizer));
break;
case "LOGSIZE":
{
channel.CheckAdmin();
int i = Int32.Parse(tokenizer.GetString());
if (_log != null)
{
_log.SetLogSize(i);
}
}
break;
case "IGNORECASE":
channel.CheckAdmin();
_ignoreCase = ProcessTrueOrFalse(tokenizer);
break;
case "MAXROWS":
{
int i = Int32.Parse(tokenizer.GetString());
channel.MaxRows = i;
break;
}
case "AUTOCOMMIT":
channel.SetAutoCommit(ProcessTrueOrFalse(tokenizer));
break;
case "TABLE":
{
channel.CheckReadWrite();
channel.CheckAdmin();
Table t = GetTable(tokenizer.GetString(), channel);
tokenizer.GetThis("INDEX");
tokenizer.GetString();
t.IndexRoots = (string)tokenizer.Value;
}
break;
case "REFERENCIAL_INTEGRITY":
case "REFERENTIAL_INTEGRITY":
channel.CheckAdmin();
_referentialIntegrity = ProcessTrueOrFalse(tokenizer);
break;
case "WRITE_DELAY":
{
channel.CheckAdmin();
bool delay = ProcessTrueOrFalse(tokenizer);
if (_log != null)
{
_log.SetWriteDelay(delay);
}
}
break;
default:
if( tokenizer.TokenType == TokenType.VARIABLE )
{
Parser p = new Parser(this, tokenizer, channel);
p.ProcessSet( sToken );
break;
}
throw TracingHelper.Error(TracingHelper.UnexpectedToken, sToken);
}
return new Result();
}
private Result ProcessGrantOrRevoke(Tokenizer c, Channel channel, bool grant)
{
channel.CheckReadWrite();
channel.CheckAdmin();
AccessType right = AccessType.None;
string sToken;
do
{
string sRight = c.GetString();
right |= Access.GetRight(sRight);
sToken = c.GetString();
} while (sToken.Equals(","));
if (!sToken.Equals("ON"))
{
throw TracingHelper.Error(TracingHelper.UnexpectedToken, sToken);
}
string table = c.GetString();
if (table.Equals("CLASS"))
{
// object is saved as 'CLASS "java.lang.Math"'
// tables like 'CLASS "xy"' should not be created
table += " \"" + c.GetString() + "\"";
}
else
{
GetTable(table, channel); // to make sure the table exists
}
c.GetThis("TO");
string user = c.GetStringToken();
// string command;
if (grant)
{
_access.Grant(user, table, right);
// command = "GRANT";
}
else
{
_access.Revoke(user, table, right);
// command = "REVOKE";
}
return new Result();
}
