First of all, thriftpy is a brillent lib for pythonic thrift client\server! In my project, a requirement is convert json with thrift struct, while thriftpy or stantdard thrif python lib only include thrift json proto. So here I write a convertor for standard json to thrift struct convert and also convert back for thriftpy.
Mainly use thriftpy module`s _tpec Variable to check and get each type define in thrift file. Specify logical for list of structs and list of simple type, this is now a recurse version, so the deeps of struct should now very high, if needed can change it to a non-recurse version
Use meta programming to convert thrift struct to standard json string
See the description in test_convertor.py
/*
thrift struct for unit test, include nested struct, list of struct
list of simple type and enum type
*/
struct list_test {
1: optional string l_name
}
struct in_meta {
1: required string more,
2: optional list<list_test> in_list
}
enum error_type_enum {
SUCCESS = 1,
FAIL = 2
}
struct test_map_value {
1: optional string value
}
struct meta {
1: optional string name,
2: optional i64 num,
3: optional string desc,
4: optional in_meta add_more,
5: optional list<list_test> in_list,
6: optional list<i64> simple_list,
7: optional error_type_enum error_type,
8: optional map<string, i32> test_simple_map,
9: optional map<string, test_map_value> test_struct_map
}Demo of json_thrift_convertor src_json:
{
"test_simple_map": {
"a": 1,
"b": 2
},
"name": "abc",
"add_more": {
"more": "more"
},
"error_type": "SUCCESS",
"in_list": [
{
"l_name": "l_name1"
},
{
"l_name": "l_name2"
},
{
"l_name": "l_name3"
}
],
"test_struct_map": {
"a": {
"value": "abc"
},
"b": {
"value": "abc1"
}
},
"num": 128,
"simple_list": [
1,
2,
3,
4
],
"desc": "for_lyj_test"
}dest_struct:
meta(test_simple_map={u'a': 1, u'b': 2}, name=u'abc', add_more=in_meta(in_list=None, more=u'more'), error_type=1, in_list=[list_test(l_name=u'l_name1'), list_test(l_name=u'l_name2'), list_test(l_name=u'l_name3')], test_struct_map={u'a': test_map_value(value=u'abc'), u'b': test_map_value(value=u'abc1')}, num=128, simple_list=[1, 2, 3, 4], desc=u'for_lyj_test')Demo of thrift_json_convertor stc_struct is dest_struct below dest json dict is:
{
"test_simple_map": {
"a": 1,
"b": 2
},
"name": "abc",
"add_more": {
"more": "more"
},
"error_type": "SUCCESS",
"in_list": [
{
"l_name": "l_name1"
},
{
"l_name": "l_name2"
},
{
"l_name": "l_name3"
},
{
"l_name": "l_name4"
}
],
"test_struct_map": {
"a": {
"value": "abc"
},
"b": {
"value": "abc1"
}
},
"num": 128,
"simple_list": [
1,
2,
3,
4
],
"desc": "for_lyj_test"
}