public bool AddCar(String id, String vin, int repairingsCount, int driveWeight, bool searched,
DateTime stkEndDate, DateTime ekEndDate)
{
Vehicle vehicle = new Vehicle(id, vin, repairingsCount,
driveWeight,
searched, stkEndDate, ekEndDate
);
int address = CarHeapFile.Add(vehicle);
bool result = IDCarTree.Add(new AddressedID(vehicle.ID, vehicle.VINMaxLength, address));
result &= VINCarTree.Add(new AddressedID(vehicle.VIN, vehicle.VINMaxLength, address));
return(result);
}
public bool UpdateCar(String id, String vin, int repairingsCount, int driveWeight, bool searched,
DateTime stkEndDate, DateTime ekEndDate)
{
AddressedID searchObj = new AddressedID();
searchObj.ID = id;
Block <AddressedID> block = IDCarTree.Find(searchObj);
if (block != null)
{
Record <AddressedID>[] records = block.RecordsArray.Records;
for (int i = 0; i < records.Length; i++)
{
if (records[i].Data.CompareTo(searchObj) == 0)
{
Block <Vehicle> vehicleBlock = CarHeapFile.FindBlock(records[i].Data.Address);
Vehicle vehicle = null;
int recordIndex = 0;
for (int j = 0; j < vehicleBlock.RecordsArray.Records.Length; j++)
{
if (vehicleBlock.RecordsArray.Records[j].Data.ID.Equals(id))
{
vehicle = vehicleBlock.RecordsArray.Records[j].Data;
recordIndex = j;
break;
}
}
vehicle.RepairingsCount = repairingsCount;
vehicle.DriveWeight = driveWeight;
vehicle.Searched = searched;
vehicle.STKEndDate = stkEndDate;
vehicle.EKEndDate = ekEndDate;
vehicleBlock.RecordsArray.Records[recordIndex] = new Record <Vehicle>(vehicle);
CarHeapFile.WriteBlock(vehicleBlock);
return(true);
}
}
}
return(false);
}
private Vehicle GetCarByIDAsObject(String id)
{
AddressedID searchObj = new AddressedID();
searchObj.ID = id;
Block <AddressedID> block = IDCarTree.Find(searchObj);
if (block != null)
{
Record <AddressedID>[] records = block.RecordsArray.Records;
foreach (Record <AddressedID> record in records)
{
if (record.Data.CompareTo(searchObj) == 0)
{
return(CarHeapFile.FindData(record.Data.Address));
}
}
}
return(null);
}
public void GenerateData(int addCount)
{
Random random = new Random();
for (int i = 0; i < addCount; i++)
{
int randomNumber = random.Next(1, addCount * 100);
Vehicle vehicle = new Vehicle("ID" + i, "VIN" + (addCount - i), randomNumber % 4,
randomNumber,
false, DateTime.Now.AddDays(randomNumber), DateTime.Now.AddDays(randomNumber)
);
int address = CarHeapFile.Add(vehicle);
IDCarTree.Add(new AddressedID(vehicle.ID, vehicle.VINMaxLength, address));
VINCarTree.Add(new AddressedID(vehicle.VIN, vehicle.VINMaxLength, address));
}
File.WriteAllText("C:/Users/User/source/repos/CarDrivingDataManagementTest/idCarTreeLevelOrder.txt",
IDCarTree.TraceLevelOrder());
File.WriteAllText("C:/Users/User/source/repos/CarDrivingDataManagementTest/vinCarTreeLevelOrder.txt",
VINCarTree.TraceLevelOrder());
}
public String DescribeCarIDDBStructure()
{
return(IDCarTree.DescribeFileStructure());
}
public void Close()
{
IDCarTree.CloseFileInteraction();
VINCarTree.CloseFileInteraction();
CarHeapFile.CloseFileInteraction();
}
