学步园

ma_dir_op.h：

////////////////////////////////////////////////////////////////
//
//Descript: directory operation class
//  Author: guowenyan
//    Date: 2013.06.13
//
////////////////////////////////////////////////////////////////
#pragma once
#include <string>
#include <vector>

class CMaDirOperation
{
public:
	static CMaDirOperation *get_instance();

public:
	bool traverse_path(std::vector<std::string> &vec_file_name, const std::string &path, const std::string &file_type = "") const;

	bool is_file_exist(const std::string &path, const std::string &file_name) const;
	bool is_file_exist(const std::string &file_name) const;

	bool delete_file(const std::string &path, const std::string &file_name) const;
	bool delete_file(const std::string &file_name) const;

	bool delete_directory(const std::string &path_name) const;

	void copy_file(const std::string &s_file_name, const std::string &d_file_name) const;
	void copy_directory(const std::string &s_path_name, const std::string &d_path_name) const;

	bool chang_file_type(const std::string &file_name, const std::string &s_file_type, const std::string &d_file_type, std::string &changed_file_name) const;

private:
	CMaDirOperation() { };
	~CMaDirOperation() { };
	bool is_file_type(const std::string &file_name, const std::string &file_type) const;

private:
	static CMaDirOperation* m_p_instance;
};

ma_dir_op.cpp：

////////////////////////////////////////////////////////////////
//
//Descript: directory operation class
//  Author: guowenyan
//    Date: 2013.06.13
//
////////////////////////////////////////////////////////////////
#include "ma_dir_op.h"

#include <iostream>
#include <boost/filesystem.hpp>

using namespace std;

namespace fs = boost::filesystem;



CMaDirOperation* CMaDirOperation::m_p_instance = NULL;

CMaDirOperation* CMaDirOperation::get_instance()
{
	if(NULL == m_p_instance)
		m_p_instance = new CMaDirOperation();
	return m_p_instance;
}

bool CMaDirOperation::traverse_path(vector<string> &vec_file_name, const string &path, const string &file_type/* = ""*/) const
{
	if(!fs::exists(path))
	{
		cout<<"the path "<<path.c_str()<<" is not exist."<<endl;
		return false;
	}

	if(!fs::is_directory(path))
	{
		cout<<"the path "<<path.c_str()<<" is not a directory."<<endl;
		return false;
	}

	fs::directory_iterator ite_begin(path);
	fs::directory_iterator ite_end;
	for(; ite_begin != ite_end; ite_begin++)
	{
		fs::path path_tmp(*ite_begin);
		if(fs::is_regular_file(path_tmp))
		{
			path_tmp = path_tmp.filename();
			string str = path_tmp.string();
			if(is_file_type(str, file_type))
				vec_file_name.push_back(str);
		}
	}

	return true;
}

bool CMaDirOperation::is_file_exist(const string &path, const string &file_name) const
{
	string t_path = path;
	if( *(t_path.end()-1) != '/' )
	{
		t_path += '/';
	}

	return is_file_exist(t_path + file_name);;
}

bool CMaDirOperation::is_file_exist(const string &file_name) const
{
	fs::path path_file(file_name);
	if(!fs::exists(path_file))
	{
		return false;
	}

	return fs::is_regular_file(path_file);
}

bool CMaDirOperation::delete_file(const std::string &path, const std::string &file_name) const
{
	string t_path = path;
	if( *(t_path.end()-1) != '/' )
	{
		t_path += '/';
	}

	return delete_file(t_path + file_name);;
}

bool CMaDirOperation::delete_file(const std::string &file_name) const
{
	/*fs::path path_file(file_name);
	if(!fs::exists(path_file) || !fs::is_regular_file(path_file))
	{
		return false;
	}

	return fs::remove(path_file);*/

	return true;
}

bool CMaDirOperation::delete_directory(const std::string &path_name) const
{
	vector<string> vec_file_name;
	if(!traverse_path(vec_file_name, path_name))
		return false;

	vector<string>::iterator ite = vec_file_name.begin();
	for(; ite != vec_file_name.end(); ite++)
	{
		delete_file(path_name + (*ite));
	}

	return true;
}

void CMaDirOperation::copy_file(const string &s_file_name, const string &d_file_name) const
{
	fs::path s_path(s_file_name);
	fs::path d_path(d_file_name);

	fs::copy_file(s_path, d_path, fs::copy_option::fail_if_exists);
}

void CMaDirOperation::copy_directory(const std::string &s_path_name, const std::string &d_path_name) const
{
	vector<string> vec_file_name;
	if(traverse_path(vec_file_name, s_path_name))
	{
		vector<string>::iterator ite = vec_file_name.begin();
		for(; ite != vec_file_name.end(); ite++)
		{
			copy_file(s_path_name + (*ite), d_path_name + (*ite));
		}
	}
}

bool CMaDirOperation::chang_file_type(const string &file_name, const std::string &s_file_type, const std::string &d_file_type, std::string &changed_file_name) const
{
	if(!is_file_type(file_name, s_file_type))
	{
		cout<<"File name "<<file_name.c_str()<<" is not mached file type "<<s_file_type.c_str()<<" in CMaDirOperation::chang_file_type()."<<endl;
		return false;
	}

	changed_file_name = file_name;
	int len = s_file_type.length();

	changed_file_name.replace(changed_file_name.length()-len, len, d_file_type);

	return true;
}

bool CMaDirOperation::is_file_type(const string &file_name, const string &file_type) const
{
	string str = file_name;
	int len = file_type.length();

	if(0 == str.substr(str.length()-len, len).compare(file_type))
		return true;

	return false;
}