/// <summary>
/// <see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/>
/// </summary>
/// <param name="bankAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <returns><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></returns>
public BankAccount FindBankAccountByNumber(string bankAccountNumber)
{
BankAccountNumberSpecification specification = new BankAccountNumberSpecification(bankAccountNumber);
//query repository
return(_bankAccountRepository.GetBySpec(specification as ISpecification <BankAccount>).SingleOrDefault());
}
/// <summary>
/// <see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/>
/// </summary>
/// <param name="fromAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <param name="toAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <param name="amount"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
public void PerformTransfer(string fromAccountNumber, string toAccountNumber, decimal amount)
{
//Process: 1º Start Transaction
// 2º Get Accounts objects from Repositories
// 3º Call PerformTransfer method in Domain Service
// 4º If no exceptions, save changes using repositories and Commit Transaction
//Create a transaction context for this operation
TransactionOptions txSettings = new TransactionOptions()
{
Timeout = TransactionManager.DefaultTimeout,
IsolationLevel = IsolationLevel.Serializable // review this option
};
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, txSettings))
{
//Get Unit of Work
IUnitOfWork unitOfWork = _bankAccountRepository.UnitOfWork as IUnitOfWork;
//Create Queries' Specifications
BankAccountNumberSpecification originalAccountQuerySpec = new BankAccountNumberSpecification(fromAccountNumber);
BankAccountNumberSpecification destinationAccountQuerySpec = new BankAccountNumberSpecification(toAccountNumber);
//Query Repositories to get accounts
BankAccount originAccount = _bankAccountRepository.GetBySpec(originalAccountQuerySpec as ISpecification <BankAccount>)
.SingleOrDefault();
BankAccount destinationAccount = _bankAccountRepository.GetBySpec(destinationAccountQuerySpec as ISpecification <BankAccount>)
.SingleOrDefault();
if (originAccount == null || destinationAccount == null)
{
throw new InvalidOperationException(Resources.Messages.exception_InvalidAccountsForTransfer);
}
////Start tracking STE entities (Self Tracking Entities)
originAccount.StartTrackingAll();
destinationAccount.StartTrackingAll();
//Excute Domain Logic for the Transfer (In Domain Service)
_bankTransferDomainService.PerformTransfer(originAccount, destinationAccount, amount);
//Save changes and commit operations.
//This opeation is problematic with concurrency.
//"balance" property in bankAccount is configured
//to FIXED in "WHERE concurrency checked predicates"
_bankAccountRepository.Modify(originAccount);
_bankAccountRepository.Modify(destinationAccount);
//Complete changes in this Unit of Work
unitOfWork.CommitAndRefreshChanges();
//Commit the transaction
scope.Complete();
}
}
public void FindBankAccount_Invoke_InvalidCodeReturnNullObject_Test()
{
//Arrange
IMainModuleUnitOfWork context = this.GetUnitOfWork();
ITraceManager traceManager = this.GetTraceManager();
BankAccountRepository repository = new BankAccountRepository(context, traceManager);
string invalidCode = "0200011111";
BankAccountNumberSpecification spec = new BankAccountNumberSpecification(invalidCode);
//Act
BankAccount actual;
actual = repository.GetBySpec(spec)
.SingleOrDefault();
//Assert
Assert.IsNull(actual);
}
public void FindBankAccount_Invoke_Test()
{
//Arrange
IMainModuleUnitOfWork context = this.GetUnitOfWork();
ITraceManager traceManager = this.GetTraceManager();
BankAccountRepository repository = new BankAccountRepository(context, traceManager);
BankAccountNumberSpecification spec = new BankAccountNumberSpecification(bankAccountNumber);
//Act
BankAccount actual;
actual = repository.GetBySpec(spec)
.SingleOrDefault();
//Assert
Assert.IsNotNull(actual);
Assert.IsTrue(actual.BankAccountId == 1);
}
/// <summary>
/// <see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/>
/// </summary>
/// <param name="fromAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <param name="toAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <param name="amount"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
public void PerformTransfer(string fromAccountNumber, string toAccountNumber, decimal amount)
{
//Process: 1º Start Transaction
// 2º Get Accounts objects from Repositories
// 3º Call PerformTransfer method in Domain Service
// 4º If no exceptions, save changes using repositories and Commit Transaction
//Create a transaction context for this operation
TransactionOptions txSettings = new TransactionOptions()
{
Timeout = TransactionManager.DefaultTimeout,
IsolationLevel = IsolationLevel.Serializable // review this option
};
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required, txSettings))
{
//Get Unit of Work
IUnitOfWork unitOfWork = _bankAccountRepository.UnitOfWork as IUnitOfWork;
//Create Queries' Specifications
BankAccountNumberSpecification originalAccountQuerySpec = new BankAccountNumberSpecification(fromAccountNumber);
BankAccountNumberSpecification destinationAccountQuerySpec = new BankAccountNumberSpecification(toAccountNumber);
//Query Repositories to get accounts
BankAccount originAccount = _bankAccountRepository.GetBySpec(originalAccountQuerySpec as ISpecification<BankAccount>)
.SingleOrDefault();
BankAccount destinationAccount = _bankAccountRepository.GetBySpec(destinationAccountQuerySpec as ISpecification<BankAccount>)
.SingleOrDefault();
if (originAccount == null || destinationAccount == null)
throw new InvalidOperationException(Resources.Messages.exception_InvalidAccountsForTransfer);
////Start tracking STE entities (Self Tracking Entities)
originAccount.StartTrackingAll();
destinationAccount.StartTrackingAll();
//Excute Domain Logic for the Transfer (In Domain Service)
_bankTransferDomainService.PerformTransfer(originAccount, destinationAccount, amount);
//Save changes and commit operations.
//This opeation is problematic with concurrency.
//"balance" property in bankAccount is configured
//to FIXED in "WHERE concurrency checked predicates"
_bankAccountRepository.Modify(originAccount);
_bankAccountRepository.Modify(destinationAccount);
//Complete changes in this Unit of Work
unitOfWork.CommitAndRefreshChanges();
//Commit the transaction
scope.Complete();
}
}
/// <summary>
/// <see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/>
/// </summary>
/// <param name="bankAccountNumber"><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></param>
/// <returns><see cref="Microsoft.Samples.NLayerApp.Application.MainModule.BankingManagement.IBankingManagementService"/></returns>
public BankAccount FindBankAccountByNumber(string bankAccountNumber)
{
BankAccountNumberSpecification specification = new BankAccountNumberSpecification(bankAccountNumber);
//query repository
return _bankAccountRepository.GetBySpec(specification as ISpecification<BankAccount>).SingleOrDefault();
}
