ossimplugins::Data Class Reference

This class is able to read the data file of the RadarSat file structure. More...

#include <Data.h>

Public Member Functions
	Data ()
	Constructor. More...
	~Data ()
	Destructor. More...
	Data (const Data &rhs)
	Copy constructor. More...
Data &	operator= (const Data &rhs)
	Copy operator. More...
void	ClearRecords ()
	Removes all the previous records from the Data. More...
void	InsertRecord (int id, RadarSatRecord *record)
	Inserts an existing record in the Data. More...
ImageOptionsFileDescriptor *	get_ImageOptionsFileDescriptor ()
ProcessedDataRecord *	get_FirstProcessedDataRecord ()
ProcessedDataRecord *	get_LastProcessedDataRecord ()

Protected Attributes
std::map< int, RadarSatRecord * >	_records

Static Protected Attributes
static const int	ImageOptionsFileDescriptorID = 1
static const int	FirstProcessedDataRecordID = 2
static const int	LastProcessedDataRecordID = 3

Friends
std::ostream &	operator<< (std::ostream &os, const Data &data)
	This function writes the Data in a stream. More...
std::istream &	operator>> (std::istream &is, Data &data)
	This function reads a Data from a stream. More...

Detailed Description

This class is able to read the data file of the RadarSat file structure.

Author

Magellium, Pacome Dentraygues

Version

1.0

Date

23-11-07

Definition at line 31 of file Data.h.

Constructor & Destructor Documentation

Data() [1/2]

ossimplugins::Data::Data

(

)

Constructor.

Definition at line 28 of file Data.cpp.

{
}

~Data()

ossimplugins::Data::~Data

(

)

Destructor.

Definition at line 32 of file Data.cpp.

References ClearRecords().

{
    ClearRecords();
}

Data() [2/2]

ossimplugins::Data::Data

(

const Data &

rhs

)

Copy constructor.

Definition at line 175 of file Data.cpp.

References _records.

{
    std::map<int, RadarSatRecord*>::const_iterator it = rhs._records.begin();
    while(it != rhs._records.end())
    {
        _records[(*it).first] = (*it).second->Clone();
        ++it;
    }
}

Member Function Documentation

ClearRecords()

void ossimplugins::Data::ClearRecords

(

)

Removes all the previous records from the Data.

Definition at line 205 of file Data.cpp.

References _records.

Referenced by ossimplugins::operator>>(), and ~Data().

{
    std::map<int, RadarSatRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        delete (*it).second;
        ++it;
    }
    _records.clear();
}

get_FirstProcessedDataRecord()

ProcessedDataRecord * ossimplugins::Data::get_FirstProcessedDataRecord

(

)

Definition at line 226 of file Data.cpp.

References _records, and FirstProcessedDataRecordID.

Referenced by ossimplugins::ossimRadarSatModel::internalSaveState().

{
    return (ProcessedDataRecord*)_records[FirstProcessedDataRecordID];
}

get_ImageOptionsFileDescriptor()

ImageOptionsFileDescriptor * ossimplugins::Data::get_ImageOptionsFileDescriptor

(

)

Definition at line 221 of file Data.cpp.

References _records, and ImageOptionsFileDescriptorID.

Referenced by ossimplugins::ossimRadarSatModel::internalSaveState(), and ossimplugins::operator>>().

{
    return (ImageOptionsFileDescriptor*)_records[ImageOptionsFileDescriptorID];
}

get_LastProcessedDataRecord()

ProcessedDataRecord * ossimplugins::Data::get_LastProcessedDataRecord

(

)

Definition at line 231 of file Data.cpp.

References _records, and LastProcessedDataRecordID.

Referenced by ossimplugins::ossimRadarSatModel::internalSaveState().

{
    return (ProcessedDataRecord*)_records[LastProcessedDataRecordID];
}

InsertRecord()

void ossimplugins::Data::InsertRecord	(	int	id,
		RadarSatRecord *	record
	)

Inserts an existing record in the Data.

Definition at line 216 of file Data.cpp.

References _records.

{
    _records[id] = record;
}

operator=()

Data & ossimplugins::Data::operator=

(

const Data &

rhs

)

Copy operator.

Definition at line 185 of file Data.cpp.

References _records.

{
    std::map<int, RadarSatRecord*>::const_iterator it = _records.begin();
    while(it != _records.end())
    {
        delete (*it).second;
        ++it;
    }
    _records.clear();

    it = rhs._records.begin();
    while(it != rhs._records.end())
    {
        _records[(*it).first] = (*it).second->Clone();
        ++it;
    }

    return *this;
}

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  os, const Data &  data  )

friend

This function writes the Data in a stream.

Definition at line 37 of file Data.cpp.

{
    std::map<int, RadarSatRecord*>::const_iterator it = data._records.begin();
    while(it != data._records.end())
    {
        (*it).second->Write(os);
        ++it;
    }
    return os;

}

operator>>

std::istream& operator>> ( std::istream &  is, Data &  data  )

friend

This function reads a Data from a stream.

Definition at line 49 of file Data.cpp.

{
    DataFactory factory;

    data.ClearRecords();

    if (sizeof(int)!=4) ossimNotify(ossimNotifyLevel_WARN)  << "RadarSat Data WARNING : (int) not coded over 32 bits, metadata might not be byte swapped correctly"<< std::endl ;
    if (sizeof(float)!=4) ossimNotify(ossimNotifyLevel_WARN)  << "RadarSat Data WARNING : (float) not coded over 32 bits, metadata might not be byte swapped correctly"<< std::endl ;
    if (sizeof(double)!=8) ossimNotify(ossimNotifyLevel_WARN)  << "RadarSat Data WARNING : (double) not coded over 64 bits, metadata might not be byte swapped correctly"<< std::endl ;

    RadarSatRecordHeader header;
    bool eof = false;

    int nbLin = 0 ; // number of image lines
    int lineLength = 0 ; // size of any ProcessedDataRecord

  is.seekg(0, std::ios::end) ;
  int lengthOfFile = is.tellg(); // total length of file
  is.seekg(0, std::ios::beg);
    while(!eof)
      {
      is>>header;
        if(is.eof())
          {
          eof = true;
          }
        else
          {
            if (header.get_rec_seq() == 1)
              { // ImageOptionsFileDescriptor
              RadarSatRecord* record = factory.Instanciate(header.get_rec_seq());
              if (record != NULL)
                  {
                record->Read(is);
                    data._records[Data::ImageOptionsFileDescriptorID] = record;

                    nbLin  = ((ImageOptionsFileDescriptor *) record)->get_nlin() ;
                    if (nbLin == -1)
                      {
                      ossimNotify(ossimNotifyLevel_DEBUG) << "WARNING: nbLin is not read in the file !" << std::endl;
                      }
                  }
                else
                  {
                    char* buff = new char[header.get_length()-12];
                    is.read(buff, header.get_length()-12);
                    delete[] buff;
                  }
              }
            else if ((header.get_rec_seq() == 2))
              { // First line ProcessedDataRecord
                lineLength = header.get_length() ;
                RadarSatRecord* record = factory.Instanciate(2);
                if (record != NULL)
                {
                  record->Read(is);
                    data._records[Data::FirstProcessedDataRecordID] = record;

                    char* buff = new char[header.get_length()-192];
                    is.read(buff, header.get_length()-192); // Reads the rest of the line
                    delete[] buff;
                  }
                else
                  {
                  char* buff = new char[header.get_length()-12];
                    is.read(buff, header.get_length()-12);
                    delete[] buff;
                  }
              }
            else if ((header.get_rec_seq() == (1+nbLin)))
              { // Last line ProcessedDataRecord
              RadarSatRecord* record = factory.Instanciate(2);
                if (record != NULL)
                  {
                  record->Read(is);
                    data._records[Data::LastProcessedDataRecordID] = record;

                    char* buff = new char[header.get_length()-192];
                    is.read(buff, header.get_length()-192); // Reads the rest of the line
                    delete[] buff;
                  }
                else
                  {
                  char* buff = new char[header.get_length()-12];
                    is.read(buff, header.get_length()-12);
                    delete[] buff;
                  }
              }
            else
              {
                // all lines between the first and last ones are skipped
                if (lineLength != 0)
                  {
                  if (nbLin == -1)
                    {
                    // Compute the number of line per dataset from the size of file and current position
                    int nbLines = ( ( lengthOfFile - is.tellg() ) / lineLength ) + 2;
                    ossimNotify(ossimNotifyLevel_DEBUG) << "To move in the dat file we compute the nb of lines = " << nbLines << std::endl;

                    // We move in the file to the last line
                    is.seekg((nbLines - 2) * lineLength - 12, std::ios::cur);

                    // We save the nbLines computed in data
                    nbLin = nbLines;
                    ImageOptionsFileDescriptor* record = data.get_ImageOptionsFileDescriptor();
                    record->set_nlin(nbLin);
                    data._records[Data::ImageOptionsFileDescriptorID] = record;
                    }
                  else
            {
            // We move in the file
            is.seekg((nbLin - 2) * lineLength - 12, std::ios::cur);
            }
                  }
                else
                  {
                  // We move to the end of the file
                    is.seekg(0, std::ios::end) ;
                  }
              }
          }
    }
    return is;
}

Member Data Documentation

_records

std::map<int, RadarSatRecord*> ossimplugins::Data::_records

protected

Definition at line 78 of file Data.h.

Referenced by ClearRecords(), Data(), get_FirstProcessedDataRecord(), get_ImageOptionsFileDescriptor(), get_LastProcessedDataRecord(), InsertRecord(), ossimplugins::operator<<(), operator=(), and ossimplugins::operator>>().

FirstProcessedDataRecordID

const int ossimplugins::Data::FirstProcessedDataRecordID = 2

staticprotected

Definition at line 80 of file Data.h.

Referenced by get_FirstProcessedDataRecord(), and ossimplugins::operator>>().

ImageOptionsFileDescriptorID

const int ossimplugins::Data::ImageOptionsFileDescriptorID = 1

staticprotected

Definition at line 79 of file Data.h.

Referenced by get_ImageOptionsFileDescriptor(), and ossimplugins::operator>>().

LastProcessedDataRecordID

const int ossimplugins::Data::LastProcessedDataRecordID = 3

staticprotected

Definition at line 81 of file Data.h.

Referenced by get_LastProcessedDataRecord(), and ossimplugins::operator>>().

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The documentation for this class was generated from the following files:

• Data.h
• Data.cpp