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#pragma once
#include <filesystem>
#include <forstio/codec/schema_hash.hpp>
#include <forstio/remote/remote.hpp>
namespace saw {
namespace rmt {
struct File {};
}
template<>
class remote_address<rmt::File> {
private:
std::filesystem::path path_;
public:
remote_address(const std::filesystem::path& path__):
path_{path__}
{}
std::string get_path_string() const {
return path_.string();
}
const std::filesystem::path& get_path() const {
return path_;
}
};
template<>
class remote<rmt::File> {
private:
SAW_FORBID_COPY(remote);
SAW_FORBID_MOVE(remote);
std::map<std::string, ptr<i_data_server<rmt::File>>> registered_data_servers_;
public:
remote() = default;
error_or<own<remote_address<rmt::File>>> parse_address(const std::string_view& path_v){
return heap<remote_address<rmt::File>>(path_v);
}
template<typename Schema, typename Encode>
error_or<own<data_server<Schema, Encode, rmt::File>>> data_listen(ref<remote_address<rmt::File>> addr){
auto insert_res = registered_data_servers_.emplace(std::make_pair(addr().get_path_string(),ptr<i_data_server<rmt::File>>{}));
if(!insert_res.second){
return make_error<err::already_exists>();
}
auto dat_srv = heap<data_server<Schema, Encode, rmt::File>>(*this, addr);
insert_res.first->second = ptr<i_data_server<rmt::File>>{*dat_srv};
return dat_srv;
}
template<typename Schema, typename Encode>
conveyor<own<data_client<Schema, Encode, rmt::File>>> data_connect(ref<remote_address<rmt::File>> addr){
auto path_str = addr().get_path_string();
auto find = registered_data_servers_.find(path_str);
if(find == registered_data_servers_.end()){
return {make_error<err::not_found>()};
}
return {heap<data_client<Schema,Encode,rmt::File>>({*this},{find->second})};
}
/**
* Internal deregister function
*/
error_or<void> deregister_data_server(const std::string& path){
auto erase_op = registered_data_servers_.erase(path);
if(erase_op == 0u){
return make_error<err::not_found>();
}
return make_void();
}
};
namespace rmt {
struct FileSystem {};
}
template<>
class remote_address<rmt::FileSystem> {
private:
std::filesystem::path path_;
public:
remote_address(const std::filesystem::path& path__):
path_{path__}
{}
std::string get_path_string() const {
return path_.string();
}
const std::filesystem::path& get_path() const {
return path_;
}
};
template<>
class remote<rmt::FileSystem> {
private:
SAW_FORBID_COPY(remote);
SAW_FORBID_MOVE(remote);
struct key_t {
std::string path;
uint32_t sch_crc32;
uint32_t enc_crc32;
bool operator<(const key_t& rhs) const {
if(path != rhs.path){
return path < rhs.path;
}
if(sch_crc32 != rhs.sch_crc32 ){
return sch_crc32 < rhs.sch_crc32;
}
if(enc_crc32 != rhs.enc_crc32 ){
return enc_crc32 < rhs.enc_crc32;
}
return false;
}
};
std::map<key_t, ptr<i_data_server<rmt::FileSystem>>> registered_data_servers_;
public:
remote() = default;
error_or<own<remote_address<rmt::FileSystem>>> parse_address(const std::string_view& path_v){
return heap<remote_address<rmt::FileSystem>>(path_v);
}
template<typename Schema, typename Encode>
error_or<own<data_server<Schema, Encode, rmt::FileSystem>>> data_listen(ref<remote_address<rmt::FileSystem>> addr){
key_t k;
k.path = addr().get_path_string();
constexpr auto crc_pair = data_server<Schema,Encode,rmt::FileSystem>::class_id;
k.sch_crc32 = crc_pair.first;
k.enc_crc32 = crc_pair.second;
auto insert_res = registered_data_servers_.emplace(std::make_pair(std::move(k),ptr<i_data_server<rmt::FileSystem>>{}));
if(!insert_res.second){
return make_error<err::already_exists>();
}
auto dat_srv = heap<data_server<Schema, Encode, rmt::FileSystem>>(*this, addr);
insert_res.first->second = ptr<i_data_server<rmt::FileSystem>>{*dat_srv};
return dat_srv;
}
/**
* Internal deregister function
*/
error_or<void> deregister_data_server(const std::string& addr, uint32_t sch_crc32, uint32_t enc_crc32){
key_t k;
k.path = addr;
k.sch_crc32 = sch_crc32;
k.enc_crc32 = enc_crc32;
auto erase_op = registered_data_servers_.erase(k);
if(erase_op == 0u){
return make_error<err::not_found>();
}
return make_void();
}
};
}
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