Error appendToFile(const core::FilePath& filePath,
const ContentType& content)
{
using namespace boost::system::errc ;
// open the file stream
boost::shared_ptr<std::ostream> pOfs;
Error error = filePath.open_w(&pOfs, false);
if (error)
return error;
try
{
pOfs->seekp(0, std::ios_base::end);
// append the content
*pOfs << content ;
if (pOfs->fail())
return systemError(io_error, ERROR_LOCATION);
}
catch(const std::exception& e)
{
Error error = systemError(boost::system::errc::io_error,
ERROR_LOCATION);
error.addProperty("what", e.what());
error.addProperty("path", filePath.absolutePath());
return error;
}
return Success() ;
}
Error writeCollectionToFile(
const core::FilePath& filePath,
const CollectionType& collection,
boost::function<std::string(
const typename CollectionType::value_type&)>
stringifyFunction)
{
using namespace boost::system::errc ;
// open the file stream
boost::shared_ptr<std::ostream> pOfs;
Error error = filePath.open_w(&pOfs, true);
if (error)
return error;
try
{
// write each line
for (typename CollectionType::const_iterator
it = collection.begin();
it != collection.end();
++it)
{
*pOfs << stringifyFunction(*it) << std::endl ;
if (pOfs->fail())
return systemError(io_error, ERROR_LOCATION);
}
}
catch(const std::exception& e)
{
Error error = systemError(boost::system::errc::io_error,
ERROR_LOCATION);
error.addProperty("what", e.what());
error.addProperty("path", filePath.absolutePath());
return error;
}
return Success() ;
}