public void WriteStream(TextWriter writer, IEnumerable <T> records, int maxRecords)
#endif
{
if (writer == null)
{
throw new ArgumentNullException("writer", "The writer of the Stream can be null");
}
if (records == null)
{
throw new ArgumentNullException("records", "The records can be null. Try with an empty array.");
}
ResetFields();
if (mHeaderText != null && mHeaderText.Length != 0)
{
if (mHeaderText.EndsWith(StringHelper.NewLine))
{
writer.Write(mHeaderText);
}
else
{
writer.WriteLine(mHeaderText);
}
}
string currentLine = null;
//ConstructorInfo constr = mType.GetConstructor(new Type[] {});
int max = maxRecords;
if (records is IList)
{
max = Math.Min(max < 0 ? int.MaxValue : max, ((IList)records).Count);
}
#if !MINI
ProgressHelper.Notify(mNotifyHandler, mProgressMode, 0, max);
#endif
int recIndex = 0;
bool first = true;
#if !GENERICS
foreach (object rec in records)
#else
foreach (T rec in records)
#endif
{
if (recIndex == maxRecords)
{
break;
}
mLineNumber++;
try
{
if (rec == null)
{
throw new BadUsageException("The record at index " + recIndex.ToString() + " is null.");
}
if (first)
{
first = false;
if (mRecordInfo.mRecordType.IsInstanceOfType(rec) == false)
{
throw new BadUsageException("This engine works with record of type " + mRecordInfo.mRecordType.Name + " and you use records of type " + rec.GetType().Name);
}
}
bool skip = false;
#if !MINI
ProgressHelper.Notify(mNotifyHandler, mProgressMode, recIndex + 1, max);
skip = OnBeforeWriteRecord(rec);
#endif
if (skip == false)
{
currentLine = mRecordInfo.RecordToString(rec);
#if !MINI
currentLine = OnAfterWriteRecord(currentLine, rec);
#endif
writer.WriteLine(currentLine);
}
}
catch (Exception ex)
{
switch (mErrorManager.ErrorMode)
{
case ErrorMode.ThrowException:
throw;
case ErrorMode.IgnoreAndContinue:
break;
case ErrorMode.SaveAndContinue:
ErrorInfo err = new ErrorInfo();
err.mLineNumber = mLineNumber;
err.mExceptionInfo = ex;
// err.mColumnNumber = mColumnNum;
err.mRecordString = currentLine;
mErrorManager.AddError(err);
break;
}
}
recIndex++;
}
mTotalRecords = recIndex;
if (mFooterText != null && mFooterText != string.Empty)
{
if (mFooterText.EndsWith(StringHelper.NewLine))
{
writer.Write(mFooterText);
}
else
{
writer.WriteLine(mFooterText);
}
}
}
private T[] ReadStream(TextReader reader, int maxRecords, DataTable dt)
#endif
{
#endif
if (reader == null)
{
throw new ArgumentNullException("reader", "The reader of the Stream can´t be null");
}
ResetFields();
mHeaderText = String.Empty;
mFooterText = String.Empty;
ArrayList resArray = new ArrayList();
int currentRecord = 0;
ForwardReader freader = new ForwardReader(reader, mRecordInfo.mIgnoreLast);
freader.DiscardForward = true;
string currentLine, completeLine;
mLineNumber = 1;
completeLine = freader.ReadNextLine();
currentLine = completeLine;
#if !MINI
ProgressHelper.Notify(mNotifyHandler, mProgressMode, 0, -1);
#endif
if (mRecordInfo.mIgnoreFirst > 0)
{
for (int i = 0; i < mRecordInfo.mIgnoreFirst && currentLine != null; i++)
{
mHeaderText += currentLine + StringHelper.NewLine;
currentLine = freader.ReadNextLine();
mLineNumber++;
}
}
bool byPass = false;
if (maxRecords < 0)
{
maxRecords = int.MaxValue;
}
LineInfo line = new LineInfo(currentLine);
line.mReader = freader;
while (currentLine != null && currentRecord < maxRecords)
{
try
{
mTotalRecords++;
currentRecord++;
line.ReLoad(currentLine);
bool skip = false;
#if !MINI
ProgressHelper.Notify(mNotifyHandler, mProgressMode, currentRecord, -1);
skip = OnBeforeReadRecord(currentLine);
#endif
if (skip == false)
{
object record = mRecordInfo.StringToRecord(line);
#if !MINI
#if !GENERICS
skip = OnAfterReadRecord(currentLine, record);
#else
skip = OnAfterReadRecord(currentLine, (T)record);
#endif
#endif
if (skip == false && record != null)
{
#if MINI
resArray.Add(record);
#else
if (dt == null)
{
resArray.Add(record);
}
else
{
dt.Rows.Add(mRecordInfo.RecordToValues(record));
}
#endif
}
}
}
catch (Exception ex)
{
switch (mErrorManager.ErrorMode)
{
case ErrorMode.ThrowException:
byPass = true;
throw;
case ErrorMode.IgnoreAndContinue:
break;
case ErrorMode.SaveAndContinue:
ErrorInfo err = new ErrorInfo();
err.mLineNumber = freader.LineNumber;
err.mExceptionInfo = ex;
// err.mColumnNumber = mColumnNum;
err.mRecordString = completeLine;
mErrorManager.AddError(err);
break;
}
}
finally
{
if (byPass == false)
{
currentLine = freader.ReadNextLine();
completeLine = currentLine;
mLineNumber++;
}
}
}
if (mRecordInfo.mIgnoreLast > 0)
{
mFooterText = freader.RemainingText;
}
#if !GENERICS
return((object[])
#else
return (T[])
#endif
resArray.ToArray(RecordType));
}
