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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 "gdcmApplicationContext.h"
#include "gdcmSwapper.h"
#include <limits>
namespace gdcm
{
namespace network
{
const uint8_t ApplicationContext::ItemType = 0x10;
const uint8_t ApplicationContext::Reserved2 = 0x00;
// PS 3.7 - 2011
// A.2.1 DICOM Registered Application Context Names
static const char DICOMApplicationContextName[] = "1.2.840.10008.3.1.1.1";
ApplicationContext::ApplicationContext()
{
UpdateName( DICOMApplicationContextName );
}
std::istream &ApplicationContext::Read(std::istream &is)
{
//uint8_t itemtype = 0x0;
//is.read( (char*)&itemtype, sizeof(ItemType) );
//assert( itemtype == ItemType );
uint8_t reserved2 = 0x0;
is.read( (char*)&reserved2, sizeof(Reserved2) );
uint16_t itemlength;
is.read( (char*)&itemlength, sizeof(ItemLength) );
SwapperDoOp::SwapArray(&itemlength,1);
ItemLength = itemlength;
char name[256];
assert( itemlength < 256 );
is.read( name, ItemLength );
Name = std::string(name,itemlength);
assert( Name == DICOMApplicationContextName );
return is;
}
const std::ostream &ApplicationContext::Write(std::ostream &os) const
{
os.write( (char*)&ItemType, sizeof(ItemType) );
os.write( (char*)&Reserved2, sizeof(Reserved2) );
uint16_t copy = ItemLength;
SwapperDoOp::SwapArray(©,1);
os.write( (char*)©, sizeof(ItemLength) );
assert( Name == DICOMApplicationContextName );
os.write( Name.c_str(), Name.size() );
return os;
}
size_t ApplicationContext::Size() const
{
size_t ret = 0;
assert( Name.size() == ItemLength );
ret += sizeof(ItemType);
ret += sizeof(Reserved2);
ret += sizeof(ItemLength);
ret += ItemLength;
return ret;
}
void ApplicationContext::UpdateName( const char *name )
{
if( name )
{
Name = name;
assert( Name.size() < std::numeric_limits<uint16_t>::max() );
ItemLength = (uint16_t)Name.size();
assert( (size_t)ItemLength + 4 == Size() );
}
}
void ApplicationContext::Print(std::ostream &os) const
{
os << Name << std::endl;
}
} // end namespace network
} // end namespace gdcm
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