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#
ifndef
cpp_hash_client_h__
#
define
cpp_hash_client_h__
#
include
"
client_interface.hpp
"
namespace
cpp_redis
{
class
hash_client
:
public
client
{
public:
hash_client
() =
default
;
virtual
~hash_client
() {
}
//
当 HSET 命令在哈希表中新创建 field 域并成功为它设置值时， 命令返回 1
//
如果域 field 已经存在于哈希表， 并且 HSET 命令成功使用新值覆盖了它的旧值， 那么命令返回 0
virtual
int
hash_set
(std::string&& key, std::string&& field, std::string&& value)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_set),std::forward<std::string>(key),
std::forward<std::string>(field), std::forward<std::string>(value));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_){
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
())?results[
0
]:
0
);
}
//
和string数据结构一样,可以实现分布式锁
//
HSETNX 命令在设置成功时返回 1 ， 在给定域已经存在而放弃执行设置操作时返回 0.
//
如果给定域已经存在于哈希表当中， 那么命令将放弃执行设置操作。
virtual
int
hash_setx
(std::string&& key, std::string&& field, std::string&& value)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_setx), std::forward<std::string>(key),
std::forward<std::string>(field), std::forward<std::string>(value));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_) {
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
virtual
int
hash_exists
(std::string&& key, std::string&& field)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_exists), std::forward<std::string>(key),
std::forward<std::string>(field));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_) {
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
virtual
std::string
hash_get
(std::string&& key, std::string&& field)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_get),std::forward<std::string>(key), std::forward<std::string>(field));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
"
"
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
()!= status::results_ &&
res->
get_result_code
() != status::status_){
return
"
"
;
}
const
auto
results = res->
get_results
();
if
(results.
empty
()){
return
"
"
;
}
return
((results[
0
] == g_nil) ?
"
"
:
std::move
(results[
0
]));
}
virtual
int
hash_del
(std::vector<std::string>&& fields)
{
check_args
();
std::string msg = request_->
req_n_keys
(request_->
get_cmd
(redis_cmd::hash_del), std::forward<std::vector<std::string>>(fields));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_){
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
virtual
int
hash_len
(std::string&& key)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_len),std::forward<std::string>(key));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_) {
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
virtual
int
hash_strlen
(std::string&& key, std::string&& field)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_strlen), std::forward<std::string>(key),
std::forward<std::string>(field));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_) {
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
//
返回增加值
//
一个新的哈希表被创建并执行HINCRBY 命令(注意地方)
virtual
int
hash_incrby
(std::string&& key, std::string&& field, std::string&& increment)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_incrby), std::forward<std::string>(key),
std::forward<std::string>(field),std::forward<std::string>(increment));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
0
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::int_result_ &&
res->
get_result_code
() != status::status_) {
return
0
;
}
const
auto
results = res->
get_int_results
();
return
((!results.
empty
()) ? results[
0
] :
0
);
}
virtual
std::string
hash_incrby_float
(std::string&& key, std::string&& field, std::string&& increment)
{
check_args
();
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_incrby_float), std::forward<std::string>(key),
std::forward<std::string>(field), std::forward<std::string>(increment));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
"
"
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::results_ &&
res->
get_result_code
() != status::status_) {
return
"
"
;
}
const
auto
results = res->
get_results
();
return
((!results.
empty
()) ?
std::move
(results[
0
]) :
"
"
);
}
virtual
bool
hash_mset
(std::vector<std::string>&& keys)
{
std::string msg = request_->
req_n_keys
(request_->
get_cmd
(redis_cmd::hash_mset),
std::forward<std::vector<std::string>>(keys));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
false
;
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::status_){
return
false
;
}
return
true
;
}
virtual
std::vector <std::string>
hash_mget
(std::vector<std::string>&& keys)
{
std::string msg = request_->
req_n_keys
(request_->
get_cmd
(redis_cmd::hash_mget), std::forward<std::vector<std::string>>(keys));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
{};
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::results_ &&
res->
get_result_code
() != status::status_){
return
{} ;
}
return
std::move
(res->
get_results
());
}
//
返回所有的keys
virtual
std::vector <std::string>
hash_keys
(std::string&& key)
{
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_keys), std::forward<std::string>(key));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
{};
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::results_ &&
res->
get_result_code
() != status::status_){
return
{} ;
}
return
std::move
(res->
get_results
());
}
//
返回key中的所有值
virtual
std::vector <std::string>
hash_vals
(std::string&& key)
{
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_vals),
std::forward<std::string>(key));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
{};
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::results_ &&
res->
get_result_code
() != status::status_){
return
{} ;
}
return
std::move
(res->
get_results
());
}
//
返回key中的域和值
virtual
std::vector <std::string>
hash_get_all
(std::string&& key)
{
std::string msg = request_->
req_n_key
(request_->
get_cmd
(redis_cmd::hash_get_all),
std::forward<std::string>(key));
if
(!socket_->
send_msg
(
std::move
(msg))) {
return
{};
}
const
auto
res = socket_->
get_responese
();
if
(res->
get_result_code
() != status::results_ &&
res->
get_result_code
() != status::status_){
return
{} ;
}
return
std::move
(res->
get_results
());
}
};
}
#
endif
//
cpp_hash_client_h__
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