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/***********************************************/
/**
* @file fileArchive.cpp
*
* @brief Read and write archives files.
*
* @author Torsten Mayer-Guerr
* @date 2005-01-01
*
*/
/***********************************************/
#include "base/import.h"
#include "base/string.h"
#include "inputOutput/logging.h"
#include "inputOutput/archive.h"
#include "inputOutput/archiveXml.h"
#include "inputOutput/archiveJson.h"
#include "inputOutput/archiveBinary.h"
#include "inputOutput/archiveAscii.h"
#include "inputOutput/file.h"
#include "inputOutput/fileArchive.h"
/***** FUNCTIONS *******************************/
OutFileArchive::OutFileArchive(const FileName &fileName, const std::string &type, UInt version) : archive(nullptr)
{
open(fileName, type, version);
}
/***********************************************/
OutFileArchive::~OutFileArchive()
{
close();
}
/***********************************************/
void OutFileArchive::open(const FileName &fileName, const std::string &type, UInt version)
{
try
{
close();
if(fileName.empty())
return;
// determine format from extension
const std::string extension = String::upperCase(fileName.typeExtension());
if(extension == "XML")
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
archive = new OutArchiveXml(file, type, version);
}
else if(extension == "JSON")
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
archive = new OutArchiveJson(file, type, version);
}
else if(extension == "DAT")
{
file.open(fileName, std::ios::binary | std::ios::out);
file.exceptions(std::ios::badbit | std::ios::failbit);
archive = new OutArchiveBinary(file, type, version);
}
else
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
archive = new OutArchiveAscii(file, type, version);
}
}
catch(std::exception &e)
{
GROOPS_RETHROW_EXTRA("filename=<"+fileName.str()+">", e)
}
}
/***********************************************/
void OutFileArchive::close()
{
if(archive)
{
delete archive;
archive = nullptr;
}
file.close();
}
/***********************************************/
void OutFileArchive::comment(const std::string &text)
{
if(archive)
archive->comment(text);
}
/***********************************************/
/***********************************************/
InFileArchive::InFileArchive(const FileName &fileName, const std::string &type, UInt version) : archive(nullptr)
{
open(fileName, type, version);
}
/***********************************************/
InFileArchive::~InFileArchive()
{
close();
}
/***********************************************/
void InFileArchive::open(const FileName &fileName, const std::string &typeStr, UInt version)
{
try
{
close();
if(fileName.empty())
return;
// determine format from extension
const std::string extension = String::upperCase(fileName.typeExtension());
if(extension=="XML")
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
char c;
file>>c;
file.putback(c);
if(c!='<')
throw(Exception("Seems not to be a valid XML file."));
archive = new InArchiveXml(file);
}
else if(extension=="JSON")
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
char c;
file>>c;
file.putback(c);
if(c!='{')
throw(Exception("Seems not to be a valid JSON file."));
archive = new InArchiveJson(file);
}
else if(extension=="DAT")
{
file.open(fileName, std::ios::binary | std::ios::in);
file.exceptions(std::ios::badbit | std::ios::failbit);
char c;
file>>c;
file.putback(c);
if((c!='b') && (c!='B'))
throw(Exception("Seems not to be a groops binary file."));
if(c=='b')
logWarning<<"File <"<<fileName<<"> is a rather old GROOPS binary file: will not be supported in future"<<Log::endl;
archive = new InArchiveBinary(file);
}
else
{
file.open(fileName);
file.exceptions(std::ios::badbit | std::ios::failbit);
archive = new InArchiveAscii(file);
}
// check type
if((!typeStr.empty()) && (!type().empty()) && (type()!=typeStr))
throw(Exception("file type is '"+type()+"' but must be '"+typeStr+"'"));
// check version
if(this->version() > version)
logWarning<<"File <"<<fileName<<"> is created with a newer version ("<<this->version()<<") of GROOPS ("<<version<<"). "
<<"This may causes problems. You should update your GROOPS software."<<Log::endl;
}
catch(std::exception &e)
{
GROOPS_RETHROW_EXTRA("filename=<"+fileName.str()+">", e)
}
}
/***********************************************/
void InFileArchive::close()
{
if(archive)
{
delete archive;
archive = nullptr;
}
file.close();
}
/***********************************************/
std::string InFileArchive::type() const
{
if(!archive)
throw(Exception("In InFileArchive::type: no file open"));
return archive->type();
}
/***********************************************/
UInt InFileArchive::version() const
{
if(!archive)
throw(Exception("InFileArchive::version: no file open"));
return archive->version();
}
/***********************************************/
Bool InFileArchive::canSeek() const
{
if(!archive || (archive->archiveType() != InArchive::BINARY))
return FALSE;
return file.canSeek();
}
/***********************************************/
std::streampos InFileArchive::position()
{
if(!archive)
throw(Exception("InFileArchive::position: no file open"));
return file.tellg();
}
/***********************************************/
void InFileArchive::seek(std::streampos pos)
{
if(!archive)
throw(Exception("InFileArchive::seek: no file open"));
file.seekg(pos);
}
/***********************************************/
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