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//
// SortedDirectoryIterator.cpp
//
// Library: Foundation
// Package: Filesystem
// Module: DirectoryIterator
//
// Copyright (c) 2004-2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/SortedDirectoryIterator.h"
#include <algorithm>
namespace Poco {
SortedDirectoryIterator::SortedDirectoryIterator()
: DirectoryIterator(), _is_finished(true)
{
}
SortedDirectoryIterator::SortedDirectoryIterator(const std::string& rPath)
: DirectoryIterator(rPath), _is_finished(false)
{
scan();
next();
}
SortedDirectoryIterator::SortedDirectoryIterator(const DirectoryIterator& iterator)
: DirectoryIterator(iterator), _is_finished(false)
{
scan();
next();
}
SortedDirectoryIterator::SortedDirectoryIterator(const File& file)
: DirectoryIterator(file), _is_finished(false)
{
scan();
next();
}
SortedDirectoryIterator::SortedDirectoryIterator(const Path& rPath)
: DirectoryIterator(rPath), _is_finished(false)
{
scan();
next();
}
SortedDirectoryIterator::~SortedDirectoryIterator()
{
}
SortedDirectoryIterator& SortedDirectoryIterator::operator ++()
{
if (!_is_finished)
{
next();
}
return *this;
}
void SortedDirectoryIterator::scan()
{
DirectoryIterator end_it;
while (*this != end_it)
{
bool isDir = false;
try
{
isDir = (*this)->isDirectory();
}
catch (...) {}
if (isDir)
_directories.push_back(_path.toString());
else
_files.push_back(_path.toString());
DirectoryIterator::operator++();
}
std::sort(_directories.begin(), _directories.end());
std::sort(_files.begin(), _files.end());
}
void SortedDirectoryIterator::next()
{
DirectoryIterator end_it;
if (!_directories.empty())
{
_path.assign(_directories.front());
_directories.pop_front();
_file = _path;
}
else if (!_files.empty())
{
_path.assign(_files.front());
_files.pop_front();
_file = _path;
}
else
{
_is_finished = true;
_path = end_it.path();
_file = _path;
}
}
} // namespace Poco
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