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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmReader.h"
#include "gdcmWriter.h"
#include "gdcmFilename.h"
#include "gdcmSystem.h"
#include "gdcmTesting.h"
//bool IsImpossibleToRewrite(const char *filename)
//{
// const char *impossible;
// int i = 0;
// while( (impossible= gdcmBlackListWriterDataImages[i]) )
// {
// if( strcmp( impossible, filename ) == 0 )
// {
// return true;
// }
// ++i;
// }
// return false;
//}
namespace gdcm
{
int TestWrite(const char *subdir, const char* filename, bool recursing, bool verbose = false)
{
Reader reader;
reader.SetFileName( filename );
if ( !reader.Read() )
{
std::cerr << "Failed to read: " << filename << std::endl;
return 1;
}
// Create directory first:
std::string tmpdir = Testing::GetTempDirectory( subdir );
if( !System::FileIsDirectory( tmpdir.c_str() ) )
{
System::MakeDirectory( tmpdir.c_str() );
//return 1;
}
std::string outfilename = Testing::GetTempFilename( filename, subdir );
Writer writer;
writer.SetFileName( outfilename.c_str() );
writer.SetFile( reader.GetFile() );
writer.SetCheckFileMetaInformation( false );
if( !writer.Write() )
{
std::cerr << "Failed to write: " << outfilename << std::endl;
return 1;
}
// Ok we have now two files let's compare their md5 sum:
char digest[33], outdigest[33];
Testing::ComputeFileMD5(filename, digest);
Testing::ComputeFileMD5(outfilename.c_str(), outdigest);
if( strcmp(digest, outdigest) != 0 )
{
if (recursing)
return 1;
// too bad the file is not identical, so let's be paranoid and
// try to reread-rewrite this just-written file:
// TODO: Copy file System::CopyFile( );
std::string subsubdir = subdir;
subsubdir += "/";
subsubdir += subdir;
if( TestWrite(subsubdir.c_str(), outfilename.c_str(), true ) )
{
std::cerr << filename << " and "
<< outfilename << " are different\n";
return 1;
}
const char * ref = Testing::GetMD5FromBrokenFile(filename);
if( ref )
{
if( strcmp(ref, outdigest) == 0 )
{
// ok this situation was already analyzed and the written file is
// readable by dcmtk and such
//size_t size1 = System::FileSize( filename );
//size_t size2 = System::FileSize( outfilename.c_str() );
//assert( size1 == size2 ); // cannot deal with implicit VR meta data header
return 0;
}
std::cerr << "incompatible ref: " << ref << " vs " << outdigest << " for file: " << filename << " & " << outfilename << std::endl;
return 1; // ref exist but does not match, how is that possible ?
}
//if( !ref )
// {
// return 1;
// }
// In theory I need to compare the two documents to check they
// are identical... TODO
std::cerr << filename << " and "
<< outfilename << " are different, output can be read though. Need manual intervention\n";
return 1;
}
else
{
size_t size1 = System::FileSize( filename );
size_t size2 = System::FileSize( outfilename.c_str() );
if( size1 != size2 ) return 1;
if(verbose)
std::cerr << filename << " and " << outfilename << " are identical\n";
return 0;
}
}
}
int TestWriter(int argc, char *argv[])
{
if( argc == 2 )
{
const char *filename = argv[1];
return gdcm::TestWrite(argv[0], filename, false, true);
}
// else
int r = 0, i = 0;
gdcm::Trace::DebugOff();
gdcm::Trace::WarningOff();
const char *filename;
const char * const *filenames = gdcm::Testing::GetFileNames();
while( (filename = filenames[i]) )
{
r += gdcm::TestWrite(argv[0], filename, false );
++i;
}
return r;
}
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