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#include "ncFile.h"
#include "ncCheck.h"
#include "ncException.h"
#include "ncByte.h"
#include<iostream>
#include<string>
#include<sstream>
using namespace std;
using namespace netCDF;
using namespace netCDF::exceptions;
int g_ncid = -1;
// destructor
NcFile::~NcFile()
{
// destructor may be called due to an exception being thrown
// hence throwing an exception from within a destructor
// causes undefined behaviour! so just printing a warning message
try
{
close();
}
catch (NcException &e)
{
cerr << e.what() << endl;
}
}
void NcFile::close()
{
if (!nullObject) {
ncCheck(nc_close(myId),__FILE__,__LINE__);
g_ncid = -1;
}
nullObject = true;
}
// Constructor generates a null object.
NcFile::NcFile() :
NcGroup() // invoke base class constructor
{}
// constructor
NcFile::NcFile(const string& filePath, const FileMode fMode)
{
open(filePath, fMode);
}
// open a file from path and mode
void NcFile::open(const string& filePath, const FileMode fMode)
{
if (!nullObject)
close();
switch (fMode)
{
case NcFile::write:
ncCheck(nc_open(filePath.c_str(), NC_WRITE, &myId),__FILE__,__LINE__);
break;
case NcFile::read:
ncCheck(nc_open(filePath.c_str(), NC_NOWRITE, &myId),__FILE__,__LINE__);
break;
case NcFile::newFile:
ncCheck(nc_create(filePath.c_str(), NC_NETCDF4 | NC_NOCLOBBER, &myId),__FILE__,__LINE__);
break;
case NcFile::replace:
ncCheck(nc_create(filePath.c_str(), NC_NETCDF4 | NC_CLOBBER, &myId),__FILE__,__LINE__);
break;
}
g_ncid = myId;
nullObject=false;
}
// constructor with file type specified
NcFile::NcFile(const string& filePath, const FileMode fMode, const FileFormat fFormat )
{
open(filePath, fMode, fFormat);
}
void NcFile::open(const string& filePath, const FileMode fMode, const FileFormat fFormat )
{
if (!nullObject)
close();
int format;
switch (fFormat)
{
case NcFile::classic:
format = 0;
break;
case NcFile::classic64:
format = NC_64BIT_OFFSET;
break;
case NcFile::nc4:
format = NC_NETCDF4;
break;
case NcFile::nc4classic:
format = NC_NETCDF4 | NC_CLASSIC_MODEL;
break;
}
switch (fMode)
{
case NcFile::write:
ncCheck(nc_open(filePath.c_str(), format | NC_WRITE, &myId),__FILE__,__LINE__);
break;
case NcFile::read:
ncCheck(nc_open(filePath.c_str(), format | NC_NOWRITE, &myId),__FILE__,__LINE__);
break;
case NcFile::newFile:
ncCheck(nc_create(filePath.c_str(), format | NC_NOCLOBBER, &myId),__FILE__,__LINE__);
break;
case NcFile::replace:
ncCheck(nc_create(filePath.c_str(), format | NC_CLOBBER, &myId),__FILE__,__LINE__);
break;
}
g_ncid = myId;
nullObject=false;
}
// Synchronize an open netcdf dataset to disk
void NcFile::sync(){
ncCheck(nc_sync(myId),__FILE__,__LINE__);
}
// Leave define mode, used for classic model
void NcFile::enddef() {
ncCheck(nc_enddef(myId),__FILE__,__LINE__);
}
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