/// <summary>
/// Constructs a new writer
/// </summary>
/// <param name="fileWrapper">The file wrapper to use as the underlying file stream</param>
/// <param name="fileName">Name of the file to write to</param>
/// <param name="maxCharsToStore">Maximum number of characters to store for long text fields</param>
/// <param name="maxXmlCharsToStore">Maximum number of characters to store for XML fields</param>
public ServiceBufferFileStreamWriter(IFileStreamWrapper fileWrapper, string fileName, int maxCharsToStore, int maxXmlCharsToStore)
{
// open file for reading/writing
fileStream = fileWrapper;
fileStream.Init(fileName, DefaultBufferLength, FileAccess.ReadWrite);
// create internal buffer
byteBuffer = new byte[DefaultBufferLength];
// Create internal buffers for blockcopy of contents to byte array
// Note: We create them now to avoid the overhead of creating a new array for every write call
shortBuffer = new short[1];
intBuffer = new int[1];
longBuffer = new long[1];
charBuffer = new char[1];
doubleBuffer = new double[1];
floatBuffer = new float[1];
// Store max chars to store
this.maxCharsToStore = maxCharsToStore;
this.maxXmlCharsToStore = maxXmlCharsToStore;
// Define what methods to use to write a type to the file
writeMethods = new Dictionary <Type, Func <object, int> >
{
{ typeof(string), val => WriteString((string)val) },
{ typeof(short), val => WriteInt16((short)val) },
{ typeof(int), val => WriteInt32((int)val) },
{ typeof(long), val => WriteInt64((long)val) },
{ typeof(byte), val => WriteByte((byte)val) },
{ typeof(char), val => WriteChar((char)val) },
{ typeof(bool), val => WriteBoolean((bool)val) },
{ typeof(double), val => WriteDouble((double)val) },
{ typeof(float), val => WriteSingle((float)val) },
{ typeof(decimal), val => WriteDecimal((decimal)val) },
{ typeof(DateTime), val => WriteDateTime((DateTime)val) },
{ typeof(DateTimeOffset), val => WriteDateTimeOffset((DateTimeOffset)val) },
{ typeof(TimeSpan), val => WriteTimeSpan((TimeSpan)val) },
{ typeof(byte[]), val => WriteBytes((byte[])val) },
{ typeof(SqlString), val => WriteNullable((SqlString)val, obj => WriteString((string)obj)) },
{ typeof(SqlInt16), val => WriteNullable((SqlInt16)val, obj => WriteInt16((short)obj)) },
{ typeof(SqlInt32), val => WriteNullable((SqlInt32)val, obj => WriteInt32((int)obj)) },
{ typeof(SqlInt64), val => WriteNullable((SqlInt64)val, obj => WriteInt64((long)obj)) },
{ typeof(SqlByte), val => WriteNullable((SqlByte)val, obj => WriteByte((byte)obj)) },
{ typeof(SqlBoolean), val => WriteNullable((SqlBoolean)val, obj => WriteBoolean((bool)obj)) },
{ typeof(SqlDouble), val => WriteNullable((SqlDouble)val, obj => WriteDouble((double)obj)) },
{ typeof(SqlSingle), val => WriteNullable((SqlSingle)val, obj => WriteSingle((float)obj)) },
{ typeof(SqlDecimal), val => WriteNullable((SqlDecimal)val, obj => WriteSqlDecimal((SqlDecimal)obj)) },
{ typeof(SqlDateTime), val => WriteNullable((SqlDateTime)val, obj => WriteDateTime((DateTime)obj)) },
{ typeof(SqlBytes), val => WriteNullable((SqlBytes)val, obj => WriteBytes((byte[])obj)) },
{ typeof(SqlBinary), val => WriteNullable((SqlBinary)val, obj => WriteBytes((byte[])obj)) },
{ typeof(SqlGuid), val => WriteNullable((SqlGuid)val, obj => WriteGuid((Guid)obj)) },
{ typeof(SqlMoney), val => WriteNullable((SqlMoney)val, obj => WriteMoney((SqlMoney)obj)) }
};
}
/// <summary>
/// Returns list of T based on *.xlsx worksheet.
/// </summary>
public IEnumerable <T> Import(string path)
{
if (string.IsNullOrEmpty(path))
{
throw new ArgumentException("Path cannot be null or empty");
}
IEnumerable <T> collectionToReturn = new List <T>();
using (FileStream fileStream = _fileStreamWrapper.Init(path, FileMode.Open))
using (IExcelFile excelFile = _excelCreator.Create(fileStream))
{
collectionToReturn = new List <T>(excelFile.ConvertToObjects <T>());
}
return(collectionToReturn);
}
/// <summary>
/// Constructs a new ServiceBufferFileStreamReader and initializes its state
/// </summary>
/// <param name="fileWrapper">The filestream wrapper to read from</param>
/// <param name="fileName">The name of the file to read from</param>
public ServiceBufferFileStreamReader(IFileStreamWrapper fileWrapper, string fileName)
{
// Open file for reading/writing
fileStream = fileWrapper;
fileStream.Init(fileName, DefaultBufferSize, FileAccess.Read);
// Create internal buffer
buffer = new byte[DefaultBufferSize];
// Create the methods that will be used to read back
readMethods = new Dictionary <Type, Func <long, FileStreamReadResult> >
{
{ typeof(string), ReadString },
{ typeof(short), ReadInt16 },
{ typeof(int), ReadInt32 },
{ typeof(long), ReadInt64 },
{ typeof(byte), ReadByte },
{ typeof(char), ReadChar },
{ typeof(bool), ReadBoolean },
{ typeof(double), ReadDouble },
{ typeof(float), ReadSingle },
{ typeof(decimal), ReadDecimal },
{ typeof(DateTime), ReadDateTime },
{ typeof(DateTimeOffset), ReadDateTimeOffset },
{ typeof(TimeSpan), ReadTimeSpan },
{ typeof(byte[]), ReadBytes },
{ typeof(SqlString), ReadString },
{ typeof(SqlInt16), ReadInt16 },
{ typeof(SqlInt32), ReadInt32 },
{ typeof(SqlInt64), ReadInt64 },
{ typeof(SqlByte), ReadByte },
{ typeof(SqlBoolean), ReadBoolean },
{ typeof(SqlDouble), ReadDouble },
{ typeof(SqlSingle), ReadSingle },
{ typeof(SqlDecimal), ReadSqlDecimal },
{ typeof(SqlDateTime), ReadDateTime },
{ typeof(SqlBytes), ReadBytes },
{ typeof(SqlBinary), ReadBytes },
{ typeof(SqlGuid), ReadGuid },
{ typeof(SqlMoney), ReadMoney },
};
}
