public override ExtractStatus Extract(TextFileReader reader)
{
string valueString = null;
try
{
valueString = reader.GetCSVFieldValue(this.ColumnNo);
this.Value = this.FieldType.ConvertFromString(valueString);
}
catch (Exception exc)
{
throw new Exception(this.FieldInfo + ": \"" + valueString + "\": " + exc.ToString());
}
ExtractStatus r = ExtractStatus.Success;
if (null == this.InstanceCreator)
{
if (this.Value.Equals(SignatureValue))
{
this.Target = new T();
r = ExtractStatus.Success;
}
else
{
r = ExtractStatus.ValueMismatched;
}
}
else
{
this.Target = this.InstanceCreator(this, this.Value);
}
return(r);
}
public override ExtractStatus Import(String filePath, out T t)
{
TextFileReader reader = new TextFileReader(filePath);
reader.FieldDelimiterChar = this.FieldDelimiterChar;
t = null;
ExtractStatus r = ExtractStatus.Success;
try
{
if (null != base.OnImportStartHandler)
{
base.OnImportStartHandler(filePath, t);
}
r = this.RecordMapping.Import(reader);
t = this.RecordMapping.Target;
reader.Close();
if (null != base.OnImportFinishHandler)
{
base.OnImportFinishHandler(filePath, t);
}
}
catch (Exception exc)
{
reader.Close();//by kittikun 2014-10-11
if (!(exc is EndOfStreamException))
{
throw exc;
}
}
return(r);
}
public override ExtractStatus Extract(TextFileReader reader)
{
if (null == this.SignatureMapper)
{
throw new Exception(this.FieldInfo + " - Signature field mapper is empty.");
}
ExtractStatus r = this.SignatureMapper.Extract(reader);
if (r != ExtractStatus.Success)
{
return(r);
}
this.Value = this.SignatureMapper.Target;
if (this.Value == null)
{
if (this.IsMandatory)
{
throw new Exception(this.FieldInfo + " - Mandatory field is empty.");
}
r = ExtractStatus.Success;
}
else
{
if (null != this.PropertySetter)
{
this.PropertySetter(this, this.Target, this.Value);
}
r = base.ExtractValues(this.Value, reader);
}
return(r);
}
public override ExtractStatus Extract(TextFileReader reader)
{
V v = new V();
if (null != this.PropertySetter)
{
this.PropertySetter(this, this.Target, v);
}
return(ExtractValues(v, reader));
}
public override ExtractStatus Extract(TextFileReader reader)
{
string valueString = null;
try
{
valueString = this.ExtractTrimSubstring(reader.RecordBuffer);
this.Value = this.FieldType.ConvertFromString(valueString);
return(null == this.PropertySetter ? ExtractStatus.Success : this.PropertySetter(this, this.Target, this.Value));
}
catch (Exception exc)
{
throw new Exception(this.FieldInfo + ": \"" + valueString + "\" : " + exc.ToString());
}
}
public virtual ExtractStatus ExtractValues(V v, TextFileReader reader)
{
ExtractStatus r = ExtractStatus.Success;
if (null != this.FieldMappers)
{
foreach (FixedLengthFieldMapper <V> f in this.FieldMappers)
{
f.Target = v;
r = f.Extract(reader);
if (r != ExtractStatus.Success)
{
break;
}
}
}
return(r);
}
/// <summary>
/// Import records to create an instance of T that would be put in the property Value.
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
public override ExtractStatus Import(TextFileReader reader)
{
this.HeaderMapper.Value = null;
reader.Next();
ExtractStatus r = this.HeaderMapper.Extract(reader);
if (r != ExtractStatus.Success)
{
return(r);
}
this.Target = this.DetailMapper.Target = this.FooterMapper.Value = this.HeaderMapper.Value;
r = this.DetailMapper.Import(reader);
if (r == ExtractStatus.Success)
{
reader.Next();
r = this.FooterMapper.Extract(reader);
}
return(r);
}
public override IList <T> Import(String filePath)
{
TextFileReader reader = new TextFileReader(filePath);
IList <T> instances = new List <T>();
T t = null;
ExtractStatus r = ExtractStatus.Success;
//while (true)
//{
try
{
r = this.RecordMapping.Import(reader);
}
catch (Exception exc)
{
if (!(exc is EndOfStreamException))
{
throw exc;
}
}
//}
instances.Add(t);
return(instances);
}
public override ExtractStatus Import(TextFileReader reader)
{
return(this.Import <T, V>(reader));
}
public abstract ExtractStatus Import(TextFileReader reader);
public virtual ExtractStatus Extract(TextFileReader reader)
{
return(this.Extract <V>(reader));
}
public virtual ExtractStatus Extract(TextFileReader reader)
{
return(this.MultiFieldMapper.Extract(reader));
}
