所以我想写一个接口,它应该能够用任何数据实现。这是我写到现在的界面。我选择IEnumerable的原因是因为我需要给类计算机或结构处理器
public interface IData<T> where T : IEnumerable<object>
{
public T ReadData();
public void WriteData(T list);
}
我有两个不同的数据,一个是计算机,它是一个类。另一个是处理器(结构(
public struct Processor
{
public string Name { get; set; }
public string AmazonLink { get; set; }
public string AmazonBin { get; set; }
public Processor(string name, string link)
{
Name = name;
try
{
//constructor parses elements which is needed to generate AmazonURL in URLGenerator project
AmazonLink = link.Substring(0, link.IndexOf("&dc"));
string binStart = link.Substring(link.IndexOf("bin%") + 4);
AmazonBin = "%7C" + binStart.Substring(2);
}
catch (Exception e)
{
throw new InnerCustomException("Erorr occured while trying to substring the link", e);
}
}
我试着这样做,但似乎因为拳击而不允许我这样做?
public class ProcessorServiceCSV : IData<IEnumerable<Processor>>
{ private string Path { get; set; }
private FileMode Filemode { get; set; }
public ProcessorServiceCSV(string path, FileMode fileMode)
{
Path = path;
Filemode = fileMode;
}
//reads Processor list from CSV file
public IEnumerable<Processor> ReadData()
{
try
{
using (var reader = new StreamReader(Path))
using (var csv = new CsvReader(reader))
{
csv.Configuration.CultureInfo = CultureInfo.InvariantCulture;
csv.Configuration.Delimiter = ",";
csv.Configuration.RegisterClassMap<ProcessorMap>();
var records = csv.GetRecords<Processor>().ToList();
return records.ToList();
}
}
catch (FileNotFoundException)
{
throw new DataCustomException("File not found", this);
}
catch (Exception e)
{
throw new DataCustomException("Something's wrong happened:" + e.Message, this);
}
} public void WriteData(IEnumerable<Processor> processors)
{
try
{
using (var stream = File.Open(Path, Filemode))
using (StreamWriter sw = new StreamWriter(stream))
using (CsvWriter cw = new CsvWriter(sw))
{
foreach (Processor processor in processors)
{
cw.Configuration.RegisterClassMap<ProcessorMap>();
cw.WriteRecord<Processor>(processor);
cw.NextRecord();
}
}
}
catch (FileNotFoundException)
{
throw new DataCustomException("File not found", this);
}
catch (FileLoadException)
{
throw new DataCustomException("File could not be opened", this);
}
catch (Exception e)
{
throw new DataCustomException("Something's wrong happened:" + e.Message, this);
}
}
}
}
我知道我可以将Processor从结构更改为类,但可以保留结构吗?提前感谢
您还有很多其他问题,包括没有给我们一个完整的、可工作的代码。
但是,如果对Processor
结构使用接口而不是实际的结构类型,则看起来应该能够执行您想要执行的操作。
另外,请注意我是如何在您的类中更改T
的类型的。在T
约束中不需要IEnumerable
。我确实删除了你的一些代码,使其在某种程度上起作用(例如,结构构造函数中的异常(,所以你需要在这里做更多的工作。
public interface IData<T>
{
IEnumerable<T> ReadData();
void WriteData(IEnumerable<T> list);
}
public interface IProcessor {
string Name { get; set; }
string AmazonLink { get; set; }
string AmazonBin { get; set; }
}
public struct Processor : IProcessor
{
public string Name { get; set; }
public string AmazonLink { get; set; }
public string AmazonBin { get; set; }
public Processor(string name, string link)
{
Name = name;
//constructor parses elements which is needed to generate AmazonURL in URLGenerator project
AmazonLink = link.Substring(0, link.IndexOf("&dc"));
string binStart = link.Substring(link.IndexOf("bin%") + 4);
AmazonBin = "%7C" + binStart.Substring(2);
}
}
public class ProcessorServiceCSV<T> : IData<T> where T: IProcessor
{ private string Path { get; set; }
private FileMode Filemode { get; set; }
public ProcessorServiceCSV(string path, FileMode fileMode)
{
Path = path;
Filemode = fileMode;
}
//reads Processor list from CSV file
public IEnumerable<T> ReadData()
{
try
{
using (var reader = new StreamReader(Path))
using (var csv = new CsvReader(reader))
{
csv.Configuration.CultureInfo = CultureInfo.InvariantCulture;
csv.Configuration.Delimiter = ",";
csv.Configuration.RegisterClassMap<ProcessorMap>();
var records = csv.GetRecords<Processor>().ToList();
return records.ToList();
}
}
catch (FileNotFoundException)
{
throw new DataCustomException("File not found", this);
}
catch (Exception e)
{
throw new DataCustomException("Something's wrong happened:" + e.Message, this);
}
}
}
这是您尝试执行的基本框架代码吗?注意,通用集合是IEnumerable<T>
而不是IEnumetable<object>
,因此我更新了您的IData<T>
定义
public class Computer
{
}
public struct Processor
{
}
public interface IData<T>
{
IEnumerable<T> ReadData();
void WriteData(IEnumerable<T> list);
}
public class ComputerData : IData<Computer>
{
public IEnumerable<Computer> ReadData()
{
throw new NotImplementedException();
}
public void WriteData(IEnumerable<Computer> list)
{
throw new NotImplementedException();
}
}
public class ProcessorData : IData<Processor>
{
public IEnumerable<Processor> ReadData()
{
throw new NotImplementedException();
}
public void WriteData(IEnumerable<Processor> list)
{
throw new NotImplementedException();
}
}
请说明此代码是否符合您的要求,如果不符合,请说明原因。