public RootServer()
{
m_ClientMap = new ClientMap();
m_QParser = new QParser();
m_Statement = new Statement();
m_RequestQueue = new RequestQueue();
m_RequestHandler = new RequestHandler(m_RequestQueue);
m_RequestHandler.startRequestHandler();
}
// test case for no table name in the query.. handling the exception
private bool Case22()
{
QParser qParser = new QParser();
try
{
string m_DeleteTab = "DELETE TABLE;";
Statement statementObject = qParser.ValidateQuery(m_DeleteTab);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for missing table name in the DELETE TABLE query";
message.TestID = 22;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
static void Main(string[] args)
{
try
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("select count(col) from tablename where col = mynew and col2 = 3;");
}
catch (QueryParserException ex)
{
Console.WriteLine(ex.Message);
}
}
// there is a possibility that the user can input DATABASE instead
// of DB as .. So checking for error handling
private bool Case14()
{
QParser qParser = new QParser();
try
{
string m_SelectDb = "SELECT database databasename1;";
Statement statementObject = qParser.ValidateQuery(m_SelectDb);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for improper syntax in the SELECT DB query";
message.TestID = 14;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
// Checking lowercase and uppercase in the query inputted(create TABLE)
private bool Case9()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("create TABLE table1 (PRIMARY KEY key1 VARCHAR(255))");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for inputting lowercase and uppercase keywords in tha same CREATE TABLE query";
message.TestID = 9;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
// test case for no table name in the query.. handling the exception
private bool Case7()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("CREATE TABLE (PRIMARY KEY key1 VARCHAR(255))");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for missing table name in CREATE TABLE query";
message.TestID = 7;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
private bool Case4()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("create db;");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exceptiion was thrown for missing database name in CREATE DB query";
message.TestID = 4;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
private bool Case60()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("RENAME COLUMN col1 TO col2 IN TABLE tab1;");
RenameColumn obj = (RenameColumn)statementObject;
if (obj.GetStatementType() != StatementType.RENAME_COLUMN)
return false;
if (obj.GetTableName() != "tab1")
return false;
if (obj.GetOldColumnName() != "col1")
return false;
if(obj.GetNewColumnName() != "col2")
return false;
Message message = new Message();
message.Msg = "RENAME COLUMN Query was executed succesfully";
message.TestID = 60;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
// there is a possibility that the user can input TAB instead
// of TABLE as .. So checking for error handling
private bool Case41()
{
QParser qParser = new QParser();
try
{
string m_ModifyTabA = "ADD COLUMN PRIMARY KEY columnname1 CHAR IN TAB tablename1;";
Statement statementObject = qParser.ValidateQuery(m_ModifyTabA);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for improper syntax in the ADD COLUMN query";
message.TestID = 41;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
private bool Case36()
{
QParser qParser = new QParser();
try
{
string m_ModifyTabA = "ADD COLUMN PRIMARY KEY key1 INT IN TABLE tablename1;";
if (!m_ModifyTabA.Contains(";"))
return false;
Statement statementObject = qParser.ValidateQuery(m_ModifyTabA);
if (statementObject.GetStatementType() != StatementType.MOD_TABLE)
return false;
ModifyTab tabObj = (ModifyTab)statementObject;
if (tabObj.GetAddColumnData().GetTableName() != "tablename1")
return false;
if (tabObj.GetAddColumnData().GetColumnData().GetUniqueKey() != "PRIMARY KEY")
return false;
if (tabObj.GetTyp() != "ADD")
return false;
if (tabObj.GetAddColumnData().GetColumnData().GetColumnName() != "key1")
return false;
if (tabObj.GetAddColumnData().GetColumnData().GetVarType() != "INT")
return false;
Message message = new Message();
message.Msg = "ADD COLUMN query was executed successfully";
message.TestID = 36;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
// there is a possibility that the user can input TAB instead
// of TABLE as .. So checking for error handling
private bool Case35()
{
QParser qParser = new QParser();
try
{
string m_ModifyTabD = "DELETE COLUMN columnname1 IN TAB tablename1;";
Statement statementObject = qParser.ValidateQuery(m_ModifyTabD);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for improper syntax in the DELETE COLUMN query";
message.TestID = 35;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
private bool Case30()
{
QParser qParser = new QParser();
try
{
string m_ModifyTabD = "DELETE COLUMN columnname1 IN TABLE tablename1;";
if (!m_ModifyTabD.Contains(";"))
return false;
Statement statementObject = qParser.ValidateQuery(m_ModifyTabD);
if (statementObject.GetStatementType() != StatementType.MOD_TABLE)
return false;
ModifyTab tabObj = (ModifyTab)statementObject;
if (tabObj.GetDelcolumnData().GetTableName() != "tablename1")
return false;
if (tabObj.GetDelcolumnData().GetColumnData() != "columnname1")
return false;
if (tabObj.GetTyp() != "DELETE")
return false;
Message message = new Message();
message.Msg = "DELETE COLUMN query was executed successfully";
message.TestID = 30;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
// there is a possibility that the user can input TAB instead
private bool Case29()
{
QParser qParser = new QParser();
try
{
string m_EmptyTab = "EMPTY TAB tablename1;";
Statement statementObject = qParser.ValidateQuery(m_EmptyTab);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for improper syntax in the EMPTY TABLE query";
message.TestID = 29;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
private bool Case25()
{
QParser qParser = new QParser();
try
{
string m_EmptyTab = "EMPTY TABLE tablename1;";
if (!m_EmptyTab.Contains(";"))
return false;
Statement statementObject = qParser.ValidateQuery(m_EmptyTab);
if (statementObject.GetStatementType() != StatementType.EMPTY_TABLE)
return false;
EmptyTable tabObj = (EmptyTable)statementObject;
if (tabObj.GetTableName() != "tablename1")
return false;
Message message = new Message();
message.Msg = "EMPTY TABLE query was executed sucessfully";
message.TestID = 25;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
//checking if there are extra spaces between the strings in the query
private bool Case23()
{
QParser qParser = new QParser();
try
{
string m_DeleteTab = "DELETE TABLE tablename1;";
Statement statementObject = qParser.ValidateQuery(m_DeleteTab);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for additional spaces between Keywords DELETE and TABLE in the DELETE TABLE query";
message.TestID = 23;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
/*
* Test case for select query with certain count
*/
private bool Case58()
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("select count(*) from tablename where col1=47 and col2 = testcol and col3=44.5 order by col1 asc, col2 dsc limit 10 , 20;");
if (statementObject.GetStatementType() != StatementType.SELECT_ROW)
return false;
if (((SelectRows)statementObject).GetTableName() != "tablename")
return false;
if (((SelectRows)statementObject).GetLimitRangeFlag() != false)
{
if (((SelectRows)statementObject).GetLimitRange().GetStartIndex() != 10)
return false;
if (((SelectRows)statementObject).GetLimitRange().GetCount() != 20)
return false;
}
else
return false;
if (((SelectRows)statementObject).GetOrderByFlag() != false)
{
List<OrderByEntry> orderByList = ((SelectRows)statementObject).GetOrderByList().GetSubOrderBylist().GetOrderByEntryList();
if (orderByList[0].GetColumnName() != "col1")
return false;
if (orderByList[0].GetOrderByType() != "ASC")
return false;
if (orderByList[1].GetColumnName() != "col2")
return false;
if (orderByList[1].GetOrderByType() != "DSC")
return false;
}
else
return false;
if (((SelectRows)statementObject).GetWhereListFlag() != false)
{
List<WhereEntry> whereEntryList = ((SelectRows)statementObject).GetWhereList().GetSubWhereList().GetWhereEntryList();
if (whereEntryList[0].GetColumnName() != "col1")
return false;
if (whereEntryList[0].GetColumnValue().GetColumnValueType() == ColValueType.INTEGER)
if (whereEntryList[0].GetColumnValue().GetIntColumnValue() != 47)
return false;
if (whereEntryList[1].GetColumnName() != "col2")
return false;
if (whereEntryList[1].GetColumnValue().GetColumnValueType() == ColValueType.STRING)
if (whereEntryList[1].GetColumnValue().GetStringColumnValue() != "testcol")
return false;
if (whereEntryList[2].GetColumnName() != "col3")
return false;
if (whereEntryList[2].GetColumnValue().GetColumnValueType() == ColValueType.DOUBLE)
if (whereEntryList[2].GetColumnValue().GetDoubleColumnValue() != 44.5)
return false;
}
else
return false;
if (((SelectRows)statementObject).GetSelectRowTableColList().GetSelectRowColumnType() == SelectRowColumnType.COUNT_ROWS)
{
if (((SelectRows)statementObject).GetSelectRowTableColList().GetCountRows().GetCountAllRowsFlag() != true)
return false;
}
else
return false;
Message message = new Message();
message.Msg = "SELECT query with COUNT was executed successfully";
message.TestID = 58;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
private bool Case59()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("RENAME TABLE tab1 TO tab2;");
RenameTable obj = (RenameTable)statementObject;
if(obj.GetStatementType() != StatementType.RENAME_TABLE)
return false;
if (obj.GetOldTableName() != "tab1")
return false;
if (obj.GetNewTableName() != "tab2")
return false;
Message message = new Message();
message.Msg = "RENAME TABLE Query was executed succesfully";
message.TestID = 59;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
private bool Case42()
{
QParser qParser = new QParser();
List<string> ColumnList = new List<string>();
Statement statementObject = qParser.ValidateQuery("INSERT INTO c.tab1(col1,col2,col3)VALUES(val1,2,2.0);");
if (statementObject.GetStatementType() != StatementType.INSERT_ROW)
return false;
InsertRow insertObj = (InsertRow)statementObject;
if(insertObj.GetTableName() !="c.tab1")
return false;
ColumnList = insertObj.GetList();
if(ColumnList[0]!="col1" && ColumnList[1] !="col2" && ColumnList[2] !="col3")
return false;
List<ColumnValue> lis = new List<ColumnValue>();
lis = insertObj.GetValueList();
if (lis[0].GetStringColumnValue() != "val1" && lis[1].GetIntColumnValue() != 2 && lis[2].GetDoubleColumnValue() != 2.0)
return false;
if (lis[0].GetColumnValueType() != ColValueType.STRING && lis[1].GetColumnValueType() != ColValueType.INTEGER && lis[2].GetColumnValueType() != ColValueType.DOUBLE)
return false;
Message message = new Message();
message.Msg = "INSERT Query was executed successfully";
message.TestID = 42;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
private bool Case1()
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("create db dbname;");
if (statementObject.GetStatementType() != StatementType.CREATE_DB)
return false;
if (((CreateDB)statementObject).GetDatabaseName() != "dbname")
return false;
Message message = new Message();
message.Msg = "CREATE DB query was executed sucesfully ";
message.TestID = 1;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
//missing values
private bool Case45()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("INSERT INTO c.tab1(col1,col2,col3)(val1,val2,val3);");
return false;
}
catch (Exception ex)
{
Message message = new Message();
message.Msg = "Exception was thrown for missing VALUES Keyword in the INSERT query";
message.TestID = 45;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
ex.ToString();
return true;
}
}
private bool Case5()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("CREATE TABLE table1(PRIMARY KEY key1 VARCHAR(255));");
if (statementObject.GetStatementType() != StatementType.CREATE_TABLE)
return false;
CreateTable tabObj = (CreateTable)statementObject;
List<TableColumn> columnList = new List<TableColumn>();
if (tabObj.GetTableName() != "table1")
return false;
columnList = tabObj.GetList();
foreach (TableColumn column in columnList)
{
if (column.GetUniqueKey() != "PRIMARY KEY")
return false;
if (column.GetColumnName() != "key1")
return false;
if (column.GetVarType() != "VARCHAR")
return false;
if (column.GetVarRange() != "255")
return false;
}
Message message = new Message();
message.Msg = "CREATE TABLE query was executed successfully";
message.TestID = 5;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
//space between INSERT INTO and remaining parts
private bool Case46()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("INSERT INTO c.tab1(col1,col2,col3)VALUES(val1,val2,val3);");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for improper spacing between Keywords INSERT and INTO in the INSERT query";
message.TestID = 46;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
// checking if there is a space between tablename and open parenthesis
// according to the sql given there shouldn be any.. so throwing error.
private bool Case8()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("CREATE TABLE table1 (PRIMARY KEY key1 VARCHAR(255));");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for extra space betwwen the kewords CREATE and TABLE in CREATE TABLE query";
message.TestID = 8;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
//no comas between the columns
private bool Case47()
{
QParser qParser = new QParser();
try
{
Statement statementObject = qParser.ValidateQuery("INSERT INTO c.tab1(col1 col2 col3)VALUES(val1,val2,val3);");
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for missing comma in between the column names in the INSERT query";
message.TestID = 47;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
//checking if there are extra spaces between the strings in the query
private bool Case13()
{
QParser qParser = new QParser();
try
{
string m_SelectDb = "SELECT DB databasename1;";
Statement statementObject = qParser.ValidateQuery(m_SelectDb);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for additional spaces between the keywords SELECT and DB in SELECT DB query"; ;
message.TestID = 13;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}
/*
* Test case for select query with limit range
*/
private bool Case51()
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("select * from tablename limit 10 , 20;");
if (statementObject.GetStatementType() != StatementType.SELECT_ROW)
return false;
if (((SelectRows)statementObject).GetSelectRowTableColList().GetSelectRowColumnType() != SelectRowColumnType.ALL_COLUMNS)
return false;
if (((SelectRows)statementObject).GetTableName() != "tablename")
return false;
if (((SelectRows)statementObject).GetOrderByFlag() != false)
return false;
if (((SelectRows)statementObject).GetWhereListFlag() != false)
return false;
if (((SelectRows)statementObject).GetLimitRangeFlag() != false)
{
if (((SelectRows)statementObject).GetLimitRange().GetStartIndex() != 10)
return false;
if (((SelectRows)statementObject).GetLimitRange().GetCount() != 20)
return false;
}
else
return false;
Message message = new Message();
message.Msg = "SELECT query with LIMIT range was executed successfully";
message.TestID = 51;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
private bool Case15()
{
QParser qParser = new QParser();
try
{
string m_DeleteDb = "DELETE DB databasename1;";
if (!m_DeleteDb.Contains(";"))
return false;
Statement statementObject = qParser.ValidateQuery(m_DeleteDb);
if (statementObject.GetStatementType() != StatementType.DELETE_DB)
return false;
DeleteDB dbObj = (DeleteDB)statementObject;
if (dbObj.GetDatabaseName() != "databasename1")
return false;
Message message = new Message();
message.Msg = "DELETE DB query was executed successfully";
message.TestID = 15;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
catch (Exception ex)
{
ex.ToString();
return false;
}
}
/*
* Test case for select query for where clause and limit clause
*/
private bool Case53()
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("select * from tablename where col1=47 and col2 = testcol and col3=44.5 limit 10 , 20;");
if (statementObject.GetStatementType() != StatementType.SELECT_ROW)
return false;
if (((SelectRows)statementObject).GetTableName() != "tablename")
return false;
if (((SelectRows)statementObject).GetLimitRangeFlag() != false)
{
if (((SelectRows)statementObject).GetLimitRange().GetStartIndex() != 10)
return false;
if (((SelectRows)statementObject).GetLimitRange().GetCount() != 20)
return false;
}
else
return false;
if (((SelectRows)statementObject).GetOrderByFlag() != false)
return false;
if (((SelectRows)statementObject).GetWhereListFlag() != false)
{
List<WhereEntry> whereEntryList = ((SelectRows)statementObject).GetWhereList().GetSubWhereList().GetWhereEntryList();
if (whereEntryList[0].GetColumnName() != "col1")
return false;
if (whereEntryList[0].GetColumnValue().GetColumnValueType() == ColValueType.INTEGER)
if (whereEntryList[0].GetColumnValue().GetIntColumnValue() != 47)
return false;
if (whereEntryList[1].GetColumnName() != "col2")
return false;
if (whereEntryList[1].GetColumnValue().GetColumnValueType() == ColValueType.STRING)
if (whereEntryList[1].GetColumnValue().GetStringColumnValue() != "testcol")
return false;
if (whereEntryList[2].GetColumnName() != "col3")
return false;
if (whereEntryList[2].GetColumnValue().GetColumnValueType() == ColValueType.DOUBLE)
if (whereEntryList[2].GetColumnValue().GetDoubleColumnValue() != 44.5)
return false;
}
else
return false;
if (((SelectRows)statementObject).GetSelectRowTableColList().GetSelectRowColumnType() != SelectRowColumnType.ALL_COLUMNS)
return false;
Message message = new Message();
message.Msg = "SELECT query with WHERE and LIMIT clauses was executed successfully";
message.TestID = 53;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
/*
* Test case for order by and limit clause
*/
private bool Case54()
{
QParser qParser = new QParser();
Statement statementObject = qParser.ValidateQuery("select * from tablename order by col1 asc, col2 dsc limit 10 , 20;");
if (statementObject.GetStatementType() != StatementType.SELECT_ROW)
return false;
if (((SelectRows)statementObject).GetTableName() != "tablename")
return false;
if (((SelectRows)statementObject).GetLimitRangeFlag() != false)
{
if (((SelectRows)statementObject).GetLimitRange().GetStartIndex() != 10)
return false;
if (((SelectRows)statementObject).GetLimitRange().GetCount() != 20)
return false;
}
else
return false;
if (((SelectRows)statementObject).GetOrderByFlag() != false)
{
List<OrderByEntry> orderByList = ((SelectRows)statementObject).GetOrderByList().GetSubOrderBylist().GetOrderByEntryList();
if (orderByList[0].GetColumnName() != "col1")
return false;
if (orderByList[0].GetOrderByType() != "ASC")
return false;
if (orderByList[1].GetColumnName() != "col2")
return false;
if (orderByList[1].GetOrderByType() != "DSC")
return false;
}
else
return false;
if (((SelectRows)statementObject).GetWhereListFlag() != false)
return false;
if (((SelectRows)statementObject).GetSelectRowTableColList().GetSelectRowColumnType() != SelectRowColumnType.ALL_COLUMNS)
return false;
Message message = new Message();
message.Msg = "SELECT query with ORDER BY and LIMIT clauses was executed successfully";
message.TestID = 54;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
// testcase for no semicolon at the end of the query
// handling the exception
private bool Case16()
{
QParser qParser = new QParser();
try
{
string m_DeleteDb = "DELETE DB databasename1";
Statement statementObject = qParser.ValidateQuery(m_DeleteDb);
return false;
}
catch (Exception ex)
{
ex.ToString();
Message message = new Message();
message.Msg = "Exception was thrown for missing semicolon in the DELETE DB query";
message.TestID = 16;
message.Passed = true;
string m_Message = message.ToString();
messageList.Add(m_Message);
return true;
}
}