-- Процедура выхода банка из клиринговой системы
PROCEDURE UnRegisterBank(aBankID IN INT);
FUNCTION CheckMessage(aMessageID IN INT) RETURN INT;
PROCEDURE ConfirmMessage(aMessageID IN INT);
END ServerUtils;
/
SHOW ERROR;
-----------------------------------------------
-- Процедуры и функции сервера КП
-----------------------------------------------
PROMPT Creating package body ServerUtils...
CREATE OR REPLACE PACKAGE BODY ServerUtils
AS
-- Процедура инициализации клирингового сенса в клиринговой палате
-- Выполняется каждый день в определенное время
PROCEDURE StartClearingSession
IS
BEGIN
DELETE FROM Messages;
DELETE FROM BankState;
DELETE FROM Results;
DELETE FROM TmpRes;
FOR x IN
(
SELECT BankID
FROM Banks
)
LOOP
INSERT INTO BankState (BankID, BankStatus)
VALUES (x.BankID, GlobalConst.cBankNotWork);
END LOOP;
SessionState := GlobalConst.cSessionActive;
END StartClearingSession;
-- Процедура завершения клирингового сеанса
-- Выполняется каждый день
PROCEDURE StopClearingSession
IS
aDebitSum INT;
aCreditSum INT;
BEGIN
SessionState := GlobalConst.cSessionUnActive;
UPDATE BankState
SET BankStatus = GlobalConst.cBankStopWork
WHERE BankStatus = GlobalConst.cBankWork;
FOR x IN
(
SELECT BankID
FROM BankState
WHERE BankStatus = GlobalConst.cBankStopWork
)
LOOP
BEGIN
SELECT Sum(Amount) INTO aDebitSum
FROM Messages
WHERE MsgStatus = GlobalConst.cMsgAccepted AND DebitBankID = x.BankID;
EXCEPTION
WHEN No_Data_Found THEN
aDebitSum := 0;
END;
BEGIN
SELECT Sum(Amount) INTO aCreditSum
FROM Messages
WHERE MsgStatus = GlobalConst.cMsgAccepted AND CreditBankID = x.BankID;
EXCEPTION
WHEN No_Data_Found THEN
aCreditSum := 0;
END;
INSERT INTO Results(BankID, DebitPos, CreditPos)
VALUES(x.BankID, aDebitSum, aCreditSum);
END LOOP;
INSERT INTO Statistics(ItemNo, WorkDay, BankID, DebitPos, CreditPos)
SELECT Stat_Seq.NextVal, SYSDATE, BankID, DebitPos, CreditPos
FROM Results;
DELETE FROM Messages;
DELETE FROM BankState;
DELETE FROM Results;
DELETE FROM TmpRes;
END StopClearingSession;
-- Возвращает количество активных участников текущего сеанса
FUNCTION GetActiveBanksCountInSession RETURN INT
IS
Res INT;
BEGIN
BEGIN
SELECT Count(*) INTO Res FROM BankState
WHERE BankStatus = GlobalConst.cBankWork;
EXCEPTION
WHEN No_Data_Found THEN
Res :=0;
END;
RETURN Res;
END GetActiveBanksCountInSession;
-- Регистрирует новый банк в клиринговой системе
FUNCTION RegisterBank(aBankName IN VARCHAR2,
aUserName IN VARCHAR2,
aPassword IN VARCHAR2) RETURN INT
IS
Res INT;
Cur INT;
Col INT;
BEGIN
BEGIN
SELECT BankID INTO Res FROM Banks
WHERE BankName = aBankName;
EXCEPTION
WHEN No_Data_Found THEN
SELECT BankID_Seq.NextVal INTO Res FROM Dual;
INSERT INTO Banks(BankID, BankName, UserName)
VALUES (Res, aBankName, aUserName);
cur:=dbms_sql.open_cursor;
dbms_sql.parse(cur,
'CREATE USER '||aUserName||' IDENTIFIED BY '||aPassword,
dbms_sql.v7);
Col := dbms_sql.execute(Cur);
dbms_sql.parse(cur,
'GRANT CREATE SESSION to '||aUserName,
dbms_sql.v7);
Col := dbms_sql.execute(Cur);
dbms_sql.close_cursor(cur);
END;
RETURN Res;
END RegisterBank;
-- Удаляет банк из числа участников по его номеру
PROCEDURE UnRegisterBank(aBankID IN INT)
IS
BEGIN
DELETE FROM Banks
WHERE BankID = aBankID;
END UnRegisterBank;
-- Удаляет банк из числа участников по его имени
PROCEDURE UnRegisterBank(aBankName IN VARCHAR2)
IS
SELECT MsgStatus, DebitBankID, CreditBankID
INTO aMsgStatus, aDebitBank, aCreditBank
FROM Messages
WHERE MessageID = aMessageID;
IF aMessageID = GlobalConst.cMsgProcessed THEN
UPDATE Messages
SET MsgStatus = GlobalConst.cMsgAccepted
WHERE MessageID = aMessageID;
SELECT Amount INTO aAmount FROM Messages
WHERE MessageID = aMessageID;
BEGIN
SELECT BankID INTO aTmpID FROM TmpRes
WHERE BankID = aDebitBank;
EXCEPTION
WHEN No_Data_Found THEN
INSERT INTO TmpRes (BankID, DebitPos, CreditPos)
VALUES (aDebitBank, 0, 0);
END;
UPDATE TmpRes
SET DebitPos = DebitPos + aAmount
WHERE BankID = aDebitBank;
BEGIN
SELECT BankID INTO aTmpID FROM TmpRes
WHERE BankID = aCreditBank;
EXCEPTION
WHEN No_Data_Found THEN
INSERT INTO TmpRes (BankID, DebitPos, CreditPos)
VALUES (aCreditBank, 0, 0);
END;
UPDATE TmpRes
SET CreditPos = CreditPos - aAmount
WHERE BankID = aCreditBank;
END IF;
END ConfirmMessage;
END ServerUtils;
/
SHOW ERROR;
---------------------------------------------------------
-- Таблица и последовательность для ведения статистики
---------------------------------------------------------
PROMPT Create table Statistics...
PROMPT Creating sequence Stat_Seq...
CREATE SEQUENCE Stat_Seq
INCREMENT BY 1
START WITH 1
MAXVALUE 99999999
MINVALUE 1
NOCACHE
CYCLE;
CREATE TABLE Statistics
(
ItemNo NUMBER(8) -- Номер элемента выборки
CONSTRAINT itemno_pk PRIMARY KEY,
WorkDay DATE, -- Дата и время платежа
BankID NUMBER(8) -- Номер банка
DebitPos INT, -- Дебетовая позиция
CreditPos INT -- Кредитовая позиция
);
DELETE FROM Status WHERE StatusClass = 1;
INSERT INTO Status VALUES (1, GlobalConst.cStatusClass,
'Статус банка в текущем сеансе');
INSERT INTO Status VALUES (1, GlobalConst.cBankWork,
'Банк участвует в текущем сеансе');
INSERT INTO Status VALUES (1, GlobalConst.cBankStopWork,
'Банк закончил текущий сенс');
INSERT INTO Status VALUES (1, GlobalConst.cBankNotWork,
'Банк не участвует в текущем сенсе');
COMMIT;
DELETE FROM Status WHERE StatusClass = 2;
INSERT INTO Status VALUES (2, GlobalConst.cStatusClass,
'Статус сообщения о платеже');
INSERT INTO Status VALUES (2, GlobalConst.cMsgNotProcessed,
'Сообщение не обработано');
INSERT INTO Status VALUES (2, GlobalConst.cMsgSourceError,
'Банк-источник не работает');
INSERT INTO Status VALUES (2, GlobalConst.cMsgDebitError,
'Банк по дебету счета не работает');
INSERT INTO Status VALUES (2, GlobalConst.cMsgCreditError,
'Банк по кредиту счета не работает');
INSERT INTO Status VALUES (2, GlobalConst.cMsgProcessed,
'Сообщение обработано и требует документального подтверждения');
INSERT INTO Status VALUES (2, GlobalConst.cMsgAccepted,
'Сообщение обработано и принято в систему взаимозачета');
CREATE TABLE Status
(
StatusClass NUMBER(3),
StatusNo NUMBER(3),
StatusText VARCHAR2(70) NOT NULL,
CONSTRAINT status_pk PRIMARY KEY (StatusClass, StatusNo)
);
-------------------------------------------------------
-- Таблица текущих результатов клирингового сеанса
-------------------------------------------------------
PROMPT Creating table TmpRes...
CREATE TABLE TmpRes
(
BankID NUMBER(8)
CONSTRAINT tmpresbankid_fk REFERENCES Banks ON DELETE CASCADE,
DebitPos INT,
CreditPos INT
);
---------------------------------------------------
-- Удаление объектов системы
---------------------------------------------------
PROMPT Deleting databases...
SET ECHO ON;
DROP SEQUENCE Stat_Seq;
DROP TABLE Statistics;
DROP TABLE BankState;
DROP TABLE Status;
DROP SEQUENCE Msg_Seq;
DROP TABLE Messages;
DROP TABLE Results;
DROP TABLE TmpRes;
DROP SEQUENCE BankID_Seq;
DROP TABLE Banks;
PROMPT Deleting packages...
DROP PACKAGE BODY ServerUtils;
DROP PACKAGE ServerUtils;
DROP PACKAGE BODY ClientUtils;
DROP PACKAGE ClientUtils;
DROP PACKAGE BODY CommonUtils;
DROP PACKAGE CommonUtils;
