mosesdecoder/mert/FileStream.cpp
2013-05-29 18:16:15 +01:00

68 lines
1.3 KiB
C++

#include "FileStream.h"
#include <stdexcept>
#include "GzFileBuf.h"
using namespace std;
namespace
{
bool IsGzipFile(const std::string &filename)
{
return filename.size() > 3 &&
filename.substr(filename.size() - 3, 3) == ".gz";
}
} // namespace
inputfilestream::inputfilestream(const std::string &filePath)
: std::istream(0), m_streambuf(0), m_is_good(false)
{
// check if file is readable
std::filebuf* fb = new std::filebuf();
m_is_good = (fb->open(filePath.c_str(), std::ios::in) != NULL);
if (IsGzipFile(filePath)) {
fb->close();
delete fb;
m_streambuf = new GzFileBuf(filePath.c_str());
} else {
m_streambuf = fb;
}
this->init(m_streambuf);
}
inputfilestream::~inputfilestream()
{
delete m_streambuf;
m_streambuf = 0;
}
void inputfilestream::close()
{
}
outputfilestream::outputfilestream(const std::string &filePath)
: std::ostream(0), m_streambuf(0), m_is_good(false)
{
// check if file is readable
std::filebuf* fb = new std::filebuf();
m_is_good = (fb->open(filePath.c_str(), std::ios::out) != NULL);
if (IsGzipFile(filePath)) {
throw runtime_error("Output to a zipped file not supported!");
} else {
m_streambuf = fb;
}
this->init(m_streambuf);
}
outputfilestream::~outputfilestream()
{
delete m_streambuf;
m_streambuf = 0;
}
void outputfilestream::close()
{
}