io Programmo 40/IOPROG_40.ISO/SOFT/NETFrameworkSDK.exe/comsdk.cab/samples.exe/Bank/Customer.cpp

C/C++ Source or Header | 2000-06-23 | 4.9 KB | 228 lines

/*+==========================================================================
  File:      Customer.cpp

  Summary:   This file implements getting and setting the Customer
             information

  Classes:   None

  Functions: Customer, GetId, SetId, GetFirst,
             SetFirst, GetLast, SetLast, GetAddress, SetAddress
             GetCity, SetCity, GetState, SetState, GetZip, SetZip,
             GetChkAcct, GetSavAcct, GetLoan, GetMinLoanRate, GetNetWorth,
             Load, Save

----------------------------------------------------------------------------
  This file is part of the Microsoft NGWS Samples.

  Copyright (C) 1998-2000 Microsoft Corporation.  All rights reserved.
==========================================================================+*/
#using <mscorlib.dll>

#using "Account.dll"
#using "Loan.dll"
#using "RateSvr.dll"

// Needed define so that we do not get a __fltused unresoled external error.  This is due
// new changes and will be removed at a later date.
extern "C" int _fltused=0;

using namespace System;
using namespace System::IO;

#define NULL    0

__gc public class Customer
{
private:
    String*     m_Id;
    String*        m_First;
    String*        m_Last;
    String*        m_Address;
    String*        m_City;
    String*        m_State;
    String*        m_Zip;

    Account*    m_ChkAcct;
    Account*        m_SavAcct;
    Loan::BankLoan*        m_Loan;

public:
    Customer();

    String *  GetId() {return m_Id;};
    void SetId(String* Id) {m_Id = Id;};

    String * GetFirst() {return m_First;};
    void SetFirst(String* First) {m_First = First;};

    String * GetLast() {return m_Last;};
    void SetLast(String* Last) {m_Last = Last;};

    String * GetAddress() {return m_Address;};
    void SetAddress(String * Address) {m_Address = Address;};

    String * GetCity() {return m_City;};
    void SetCity(String *  City) {m_City = City;};

    String * GetState() {return m_State;};
    void SetState(String *  State) {m_State = State;};

    String * GetZip() {return m_Zip;};
    void SetZip(String* Zip) {m_Zip = Zip;};

    Account* GetChkAcct();
    Account*  GetSavAcct();
    Loan::BankLoan * GetLoan();

    double GetMinLoanRate(double Amount, double Term);
    double GetNetWorth();

    short Load(String * Id);
    short Save(void);
};



Customer::Customer()
{
    m_Id = new String(L"");
    m_First = new String(L"");
    m_Last = new String(L"");
    m_Address = new String(L"");
    m_City = new String(L"");
    m_State = new String(L"");
    m_Zip = new String(L"");

    m_ChkAcct = NULL;
    m_SavAcct = NULL;
    m_Loan = NULL;
}



Account *  Customer::GetChkAcct()
{
    if (m_ChkAcct == NULL)
        m_ChkAcct = new Account();

    return m_ChkAcct;
}

Account *  Customer::GetSavAcct()
{
    if (m_SavAcct == NULL)
        m_SavAcct = new Account();

    return m_SavAcct;
}

Loan::BankLoan* Customer::GetLoan()
{
    if (m_Loan == NULL)
        m_Loan = new Loan::BankLoan();

    return m_Loan;
}

double Customer::GetMinLoanRate(double Amount, double Term)
{
    double MinRate = 0.0;

    RateSvr::RateLookup *rl;
    rl = new RateSvr::RateLookup;
    MinRate = rl->GetLoanRate(Amount, Term);

    return MinRate;
}

double Customer::GetNetWorth()
{
    double nw = 0.0;

    if (m_ChkAcct != NULL)
        nw = nw + m_ChkAcct->GetBalance();

    if (m_SavAcct != NULL)
        nw = nw + m_SavAcct->GetBalance();

    if (m_Loan != NULL)
        nw = nw - m_Loan->GetBalance();

    return nw;
}

short Customer::Load(String *  Id)
{
    String *  filename = String::Concat( Id, L".txt");

    try {
        StreamReader * tis = new StreamReader (filename);

        m_Id = Id;
        m_First = tis->ReadLine();
        m_Last = tis->ReadLine();
        m_Address = tis->ReadLine();
        m_City = tis->ReadLine();
        m_State = tis->ReadLine();
        m_Zip = tis->ReadLine();

        String *  buf;

        buf = tis->ReadLine();
        m_ChkAcct->SetBalance(Double :: Parse (buf));

        buf = tis->ReadLine();
        m_SavAcct->SetBalance(Double :: Parse (buf));

        buf = tis->ReadLine();
        m_Loan->SetBalance(Double :: Parse (buf));

        buf = tis->ReadLine();
        m_Loan->SetPrincipal(Double :: Parse (buf));

        buf = tis->ReadLine();
        m_Loan->SetRate(Double :: Parse (buf) / 100);

        buf = tis->ReadLine();
        m_Loan->SetTerm(Double :: Parse (buf));

        buf = tis->ReadLine();
        m_Loan->SetPayment(Double :: Parse (buf));

        tis->Close();
    }
    catch (Exception * e) {
        return false;
    }
    return true;
}

short Customer::Save()
{
    String * filename  = String::Concat(m_Id, L".txt");

    StreamWriter *  tos = new StreamWriter(filename, false);

    tos->WriteLine(m_First);
    tos->WriteLine(m_Last);
    tos->WriteLine(m_Address);
    tos->WriteLine(m_City);
    tos->WriteLine(m_State);
    tos->WriteLine(m_Zip);

    tos->WriteLine(m_ChkAcct->GetBalance());
    tos->WriteLine(m_SavAcct->GetBalance());

    tos->WriteLine(m_Loan->GetBalance());
    tos->WriteLine(m_Loan->GetPrincipal());
    tos->WriteLine(m_Loan->GetRate()*100);
    tos->WriteLine(m_Loan->GetTerm());
    tos->WriteLine(m_Loan->GetPayment());

    tos->Close();

    return true;
}