mirror of
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138 lines
3.2 KiB
C++
138 lines
3.2 KiB
C++
//
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// SortedDirectoryIterator.cpp
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//
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// $Id$
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//
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// Library: Foundation
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// Package: Filesystem
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// Module: DirectoryIterator
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//
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// Copyright (c) 2004-2012, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/SortedDirectoryIterator.h"
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#include <algorithm>
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namespace Poco
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{
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SortedDirectoryIterator::SortedDirectoryIterator()
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: DirectoryIterator(), _is_finished(true)
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{
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}
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SortedDirectoryIterator::SortedDirectoryIterator(const std::string& path)
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: DirectoryIterator(path), _is_finished(false)
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{
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scan();
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next();
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}
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SortedDirectoryIterator::SortedDirectoryIterator(const DirectoryIterator& iterator)
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: DirectoryIterator(iterator), _is_finished(false)
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{
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scan();
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next();
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}
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SortedDirectoryIterator::SortedDirectoryIterator(const File& file)
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: DirectoryIterator(file), _is_finished(false)
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{
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scan();
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next();
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}
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SortedDirectoryIterator::SortedDirectoryIterator(const Path& path)
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: DirectoryIterator(path), _is_finished(false)
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{
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scan();
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next();
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}
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SortedDirectoryIterator::~SortedDirectoryIterator()
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{
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}
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SortedDirectoryIterator& SortedDirectoryIterator::operator ++()
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{
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if (!_is_finished)
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{
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next();
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}
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return *this;
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}
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void SortedDirectoryIterator::scan()
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{
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DirectoryIterator end_it;
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while (*this != end_it)
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{
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if ((*this)->isDirectory())
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_directories.push_back(_path.toString());
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else
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_files.push_back(_path.toString());
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DirectoryIterator::operator++();
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}
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std::sort(_directories.begin(), _directories.end());
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std::sort(_files.begin(), _files.end());
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}
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void SortedDirectoryIterator::next()
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{
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DirectoryIterator end_it;
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if (!_directories.empty())
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{
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_path.assign(_directories.front());
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_directories.pop_front();
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_file = _path;
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}
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else if (!_files.empty())
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{
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_path.assign(_files.front());
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_files.pop_front();
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_file = _path;
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}
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else
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{
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_is_finished = true;
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_path = end_it.path();
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_file = _path;
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}
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}
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} // namespace Poco
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