public void TestReadContinued()
{
//simulate a continues Drawing record
MemoryStream out1 = new MemoryStream();
//main part
DrawingRecord dg = new DrawingRecord();
byte[] data1 = new byte[8224];
Arrays.Fill(data1, (byte)1);
dg.Data = (/*setter*/data1);
byte[] dataX = dg.Serialize();
out1.Write(dataX, 0, dataX.Length);
//continued part
byte[] data2 = new byte[4048];
Arrays.Fill(data2, (byte)2);
ContinueRecord cn = new ContinueRecord(data2);
dataX = cn.Serialize();
out1.Write(dataX, 0, dataX.Length);
List<Record> rec = RecordFactory.CreateRecords(new MemoryStream(out1.ToArray()));
Assert.AreEqual(2, rec.Count);
Assert.IsTrue(rec[0] is DrawingRecord);
Assert.IsTrue(rec[1] is ContinueRecord);
Assert.IsTrue(Arrays.Equals(data1, ((DrawingRecord)rec[0]).Data));
Assert.IsTrue(Arrays.Equals(data2, ((ContinueRecord)rec[1]).Data));
}
/**
* Clone this record.
*/
public override Object Clone()
{
ContinueRecord Clone = new ContinueRecord();
Clone.Data = (field_1_data);
return(Clone);
}
public void TestReadContinued()
{
//simulate a continues Drawing record
MemoryStream out1 = new MemoryStream();
//main part
DrawingRecord dg = new DrawingRecord();
byte[] data1 = new byte[8224];
Arrays.Fill(data1, (byte)1);
dg.Data = (/*setter*/data1);
byte[] dataX = dg.Serialize();
out1.Write(dataX, 0, dataX.Length);
//continued part
byte[] data2 = new byte[4048];
Arrays.Fill(data2, (byte)2);
ContinueRecord cn = new ContinueRecord(data2);
dataX = cn.Serialize();
out1.Write(dataX, 0, dataX.Length);
List<Record> rec = RecordFactory.CreateRecords(new MemoryStream(out1.ToArray()));
Assert.AreEqual(1, rec.Count);
Assert.IsTrue(rec[0] is DrawingRecord);
//DrawingRecord.Data should return concatenated data1 and data2
byte[] tmp = new byte[data1.Length + data2.Length];
Array.Copy(data1, 0, tmp, 0, data1.Length);
Array.Copy(data2, 0, tmp, data1.Length, data2.Length);
DrawingRecord dg2 = (DrawingRecord)rec[(0)];
Assert.AreEqual(data1.Length + data2.Length, dg2.Data.Length);
Assert.IsTrue(Arrays.Equals(tmp, dg2.Data));
}
private int SerializeTrailingRecords(int offset, byte[] data)
{
byte[] textBytes;
try
{
textBytes = Encoding.GetEncoding("UTF-16LE").GetBytes(_text.String);
}
catch (EncoderFallbackException)
{
throw;
}
int remainingLength = textBytes.Length;
int countTextBytesWritten = 0;
int pos = offset;
// (regardless what was read, we always serialize double-byte
// unicode characters (UTF-16LE).
Byte unicodeFlag = (byte)1;
while (remainingLength > 0)
{
int chunkSize = Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE - 2, remainingLength);
remainingLength -= chunkSize;
pos += ContinueRecord.Write(data, pos, unicodeFlag, textBytes, countTextBytesWritten, chunkSize);
countTextBytesWritten += chunkSize;
}
byte[] formatData = CreateFormatData(_text);
pos += ContinueRecord.Write(data, pos, null, formatData);
return(pos - offset);
}
/**
* Clone this record.
*/
public override Object Clone() {
ContinueRecord Clone = new ContinueRecord();
Clone.Data=(field_1_data);
return Clone;
}
/**
* @param drawingData - escher records saved into single byte array
* @param writtenEscherBytes - count of bytes already saved into drawing records (we should know it to decide create
* drawing or continue record)
* @param pos current position of data array
* @param data - array of bytes where drawing records must be serialized
* @param i - number of shape, saved into data array
* @return offset of data array after serialization
*/
private int WriteDataIntoDrawingRecord(byte[] drawingData, int writtenEscherBytes, int pos, byte[] data, int i)
{
int temp = 0;
//First record in drawing layer MUST be DrawingRecord
if (writtenEscherBytes + drawingData.Length > RecordInputStream.MAX_RECORD_DATA_SIZE && i != 1)
{
for (int j = 0; j < drawingData.Length; j += RecordInputStream.MAX_RECORD_DATA_SIZE)
{
byte[] buf = new byte[Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j)];
System.Array.Copy(drawingData, j, buf, 0, Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j));
ContinueRecord drawing = new ContinueRecord(buf);
temp += drawing.Serialize(pos + temp, data);
}
}
else
{
for (int j = 0; j < drawingData.Length; j += RecordInputStream.MAX_RECORD_DATA_SIZE)
{
if (j == 0)
{
DrawingRecord drawing = new DrawingRecord();
byte[] buf = new byte[Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j)];
System.Array.Copy(drawingData, j, buf, 0, Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j));
drawing.Data = (buf);
temp += drawing.Serialize(pos + temp, data);
}
else
{
byte[] buf = new byte[Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j)];
System.Array.Copy(drawingData, j, buf, 0, Math.Min(RecordInputStream.MAX_RECORD_DATA_SIZE, drawingData.Length - j));
ContinueRecord drawing = new ContinueRecord(buf);
temp += drawing.Serialize(pos + temp, data);
}
}
}
return temp;
}
/**
* @return the next available record, or <code>null</code> if
* this pass didn't return a record that's
* suitable for returning (eg was a continue record).
*/
private Record ReadNextRecord()
{
Record record = RecordFactory.CreateSingleRecord(_recStream);
_lastRecordWasEOFLevelZero = false;
if (record is BOFRecord)
{
_bofDepth++;
return(record);
}
if (record is EOFRecord)
{
_bofDepth--;
if (_bofDepth < 1)
{
_lastRecordWasEOFLevelZero = true;
}
return(record);
}
if (record is DBCellRecord)
{
// Not needed by POI. Regenerated from scratch by POI when spreadsheet is written
return(null);
}
if (record is RKRecord)
{
return(RecordFactory.ConvertToNumberRecord((RKRecord)record));
}
if (record is MulRKRecord)
{
Record[] records = RecordFactory.ConvertRKRecords((MulRKRecord)record);
_unreadRecordBuffer = records;
_unreadRecordIndex = 1;
return(records[0]);
}
if (record.Sid == DrawingGroupRecord.sid &&
_lastRecord is DrawingGroupRecord)
{
DrawingGroupRecord lastDGRecord = (DrawingGroupRecord)_lastRecord;
lastDGRecord.Join((AbstractEscherHolderRecord)record);
return(null);
}
if (record.Sid == ContinueRecord.sid)
{
ContinueRecord contRec = (ContinueRecord)record;
if (_lastRecord is ObjRecord || _lastRecord is TextObjectRecord)
{
// Drawing records have a very strange continue behaviour.
//There can actually be OBJ records mixed between the continues.
_lastDrawingRecord.ProcessContinueRecord(contRec.Data);
//we must remember the position of the continue record.
//in the serialization procedure the original structure of records must be preserved
if (_shouldIncludeContinueRecords)
{
return(record);
}
return(null);
}
if (_lastRecord is DrawingGroupRecord)
{
((DrawingGroupRecord)_lastRecord).ProcessContinueRecord(contRec.Data);
return(null);
}
if (_lastRecord is DrawingRecord)
{
((DrawingRecord)_lastRecord).ProcessContinueRecord(contRec.Data);
return(null);
}
if (_lastRecord is CrtMlFrtRecord)
{
return(record);
}
if (_lastRecord is UnknownRecord)
{
//Gracefully handle records that we don't know about,
//that happen to be continued
return(record);
}
if (_lastRecord is EOFRecord)
{
// This is really odd, but excel still sometimes
// outPuts a file like this all the same
return(record);
}
//if (_lastRecord is StringRecord)
//{
// ((StringRecord)_lastRecord).ProcessContinueRecord(contRec.Data);
// return null;
//}
throw new RecordFormatException("Unhandled Continue Record");
}
_lastRecord = record;
if (record is DrawingRecord)
{
_lastDrawingRecord = (DrawingRecord)record;
}
return(record);
}
public void TestDuplicatePLS_bug47415()
{
NPOI.HSSF.Record.Record plsA = ur(UnknownRecord.PLS_004D, "BA AD F0 0D");
NPOI.HSSF.Record.Record plsB = ur(UnknownRecord.PLS_004D, "DE AD BE EF");
NPOI.HSSF.Record.Record contB1 = new ContinueRecord(HexRead.ReadFromString("FE ED"));
NPOI.HSSF.Record.Record contB2 = new ContinueRecord(HexRead.ReadFromString("FA CE"));
NPOI.HSSF.Record.Record[] recs = {
new HeaderRecord("&LSales Figures"),
new FooterRecord("&LInventory"),
new HCenterRecord(),
new VCenterRecord(),
plsA,
plsB, contB1, contB2, // make sure continuing PLS is still OK
};
RecordStream rs = new RecordStream(Arrays.AsList(recs), 0);
PageSettingsBlock psb;
try
{
psb = new PageSettingsBlock(rs);
}
catch (RecordFormatException e)
{
if ("Duplicate PageSettingsBlock record (sid=0x4d)".Equals(e.Message))
{
throw new AssertionException("Identified bug 47415");
}
throw e;
}
// serialize the PSB to see what records come out
RecordInspector.RecordCollector rc = new RecordInspector.RecordCollector();
psb.VisitContainedRecords(rc);
NPOI.HSSF.Record.Record[] outRecs = rc.Records;
// records were assembled in standard order, so this simple check is OK
Assert.IsTrue(Arrays.Equals(recs, outRecs));
}
