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// 
// FilesystemConfiguration.cpp 
// 
// Library: Util 
// Package: Configuration 
// Module:  FilesystemConfiguration 
// 
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. 
// and Contributors. 
// 
// SPDX-License-Identifier:	BSL-1.0 
// 
 
 
#include "Poco/Util/FilesystemConfiguration.h" 
#include "Poco/File.h" 
#include "Poco/Path.h" 
#include "Poco/DirectoryIterator.h" 
#include "Poco/StringTokenizer.h" 
#include "Poco/FileStream.h" 
 
 
using Poco::Path; 
using Poco::File; 
using Poco::DirectoryIterator; 
using Poco::StringTokenizer; 
 
 
namespace Poco { 
namespace Util { 
 
 
FilesystemConfiguration::FilesystemConfiguration(const std::string& path): 
	_path(path) 
{ 
	_path.makeDirectory(); 
} 
 
 
FilesystemConfiguration::~FilesystemConfiguration() 
{ 
} 
 
 
void FilesystemConfiguration::clear() 
{ 
	File regDir(_path); 
	regDir.remove(true); 
} 
 
 
bool FilesystemConfiguration::getRaw(const std::string& key, std::string& value) const 
{ 
	Path p(keyToPath(key)); 
	p.setFileName("data"); 
	File f(p); 
	if (f.exists()) 
	{ 
		value.reserve((std::string::size_type) f.getSize()); 
		Poco::FileInputStream istr(p.toString()); 
		int c = istr.get(); 
		while (c != std::char_traits<char>::eof()) 
		{ 
			value += (char) c; 
			c = istr.get(); 
		} 
		return true; 
	} 
	else return false; 
} 
 
 
void FilesystemConfiguration::setRaw(const std::string& key, const std::string& value) 
{ 
	Path p(keyToPath(key)); 
	File dir(p); 
	dir.createDirectories(); 
	p.setFileName("data"); 
	Poco::FileOutputStream ostr(p.toString()); 
	ostr.write(value.data(), (std::streamsize) value.length()); 
} 
 
 
void FilesystemConfiguration::enumerate(const std::string& key, Keys& range) const 
{ 
	Path p(keyToPath(key)); 
	File dir(p); 
	if (!dir.exists()) 
	{ 
		return; 
	} 
 
	DirectoryIterator it(p); 
	DirectoryIterator end; 
	while (it != end) 
	{ 
		 if (it->isDirectory()) 
			range.push_back(it.name()); 
		++it; 
	} 
} 
 
 
void FilesystemConfiguration::removeRaw(const std::string& key) 
{ 
	Path p(keyToPath(key)); 
	File dir(p); 
	if (dir.exists()) 
	{ 
		dir.remove(true); 
	} 
} 
 
 
Path FilesystemConfiguration::keyToPath(const std::string& key) const 
{ 
	Path result(_path); 
	StringTokenizer tokenizer(key, ".", StringTokenizer::TOK_IGNORE_EMPTY | StringTokenizer::TOK_TRIM); 
	for (StringTokenizer::Iterator it = tokenizer.begin(); it != tokenizer.end(); ++it) 
	{ 
		result.pushDirectory(*it); 
	}	 
	return result; 
} 
 
 
} } // namespace Poco::Util