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json.h
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// Copyright (C) 2012, Rus V. Brushkoff, All rights reserved
#ifndef _ORIENT_JSON_H_
#define _ORIENT_JSON_H_
#include "json_spirit.h"
#include <utf8.h>
using namespace std;
namespace json {
static inline wstring s2w(const string &s)
{
wstring res;
try {
utf8::utf8to32(s.begin(), s.end(), back_inserter(res));
} catch (...) {
throw OrientPP::Exception("utf8to32: Invalid chars !");
}
return res;
}
static inline wstring s2w(const char *_s) { string s(_s); return s2w(s); }
static inline string w2s(wstring s)
{
string res;
try {
utf8::utf32to8(s.begin(), s.end(), back_inserter(res));
} catch (...) {
throw OrientPP::Exception("utf32to8: Invalid chars !");
}
return res;
}
static inline string json_write(json_spirit::wmObject &vals) {
string res = w2s(json_spirit::write(json_spirit::wmValue(vals), json_spirit::raw_utf8 | json_spirit::remove_trailing_zeros));
return res;
}
static inline bool json_get(json_spirit::wmObject &vals, const char *key, json_spirit::wmObject &res) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
json_spirit::wmValue v = i->second;
if (v.type() != json_spirit::obj_type)
return false;
res = v.get_obj();
return true;
}
static inline bool json_get(json_spirit::wmObject &vals, const char *key, json_spirit::wmArray &res) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
json_spirit::wmValue v = i->second;
if (v.type() != json_spirit::array_type)
return false;
res = v.get_array();
return true;
}
static inline bool json_get(json_spirit::wmObject &vals, const char *key, string &res) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
json_spirit::wmValue v = i->second;
if (v.type() != json_spirit::str_type)
return false;
res = w2s(v.get_str());
return true;
}
static inline bool json_get(json_spirit::wmObject &vals, const char *key, int &res) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
json_spirit::wmValue v = i->second;
if (v.type() != json_spirit::int_type)
return false;
res = v.get_int();
return true;
}
static inline bool json_get(json_spirit::wmObject &vals, const char *key, bool &res) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
json_spirit::wmValue v = i->second;
if (v.type() != json_spirit::bool_type)
return false;
res = v.get_bool();
return true;
}
static inline string json_get_str(json_spirit::wmObject &vals, const char *key, const char *default_val = "") {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
string res(default_val);
if (i != vals.end()) {
json_spirit::wmValue v = i->second;
if (v.type() == json_spirit::str_type)
res = w2s(v.get_str());
}
return res;
}
static inline int json_get_int(json_spirit::wmObject &vals, const char *key, int default_val = -1) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
int res = default_val;
if (i != vals.end()) {
json_spirit::wmValue v = i->second;
if (v.type() == json_spirit::int_type)
res = v.get_int();
}
return res;
}
static inline double json_get_double(json_spirit::wmObject &vals, const char *key, double default_val = 0.0) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
double res = default_val;
if (i != vals.end()) {
json_spirit::wmValue v = i->second;
if (v.type() == json_spirit::real_type)
res = v.get_real();
else if (v.type() == json_spirit::int_type)
res = v.get_int();
}
return res;
}
static inline float json_get_float(json_spirit::wmObject &vals, const char *key, float default_val = 0.0) {
return json_get_double(vals, key, default_val);
}
static inline int json_get_bool(json_spirit::wmObject &vals, const char *key, bool default_val = false) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
bool res = default_val;
if (i != vals.end()) {
json_spirit::wmValue v = i->second;
if (v.type() == json_spirit::bool_type)
res = v.get_bool();
}
return res;
}
static inline string json_get_string_int(json_spirit::wmObject &vals, const char *key, int default_val = -1) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
stringstream ss;
if (i != vals.end()) {
json_spirit::wmValue v = i->second;
if (v.type() == json_spirit::int_type)
ss << v.get_int();
} else
ss << default_val;
return ss.str();
}
static inline void json_add_bool(json_spirit::wmObject &vals, const char *key, bool v) {
vals[s2w(key)] = v;
}
static inline void json_add_int(json_spirit::wmObject &vals, const char *key, int v) {
vals[s2w(key)] = v;
}
static inline void json_add_float(json_spirit::wmObject &vals, const char *key, float v) {
vals[s2w(key)] = v;
}
static inline void json_add_double(json_spirit::wmObject &vals, const char *key, double v) {
vals[s2w(key)] = v;
}
static inline void json_add_str(json_spirit::wmObject &vals, string key, string v) {
vals[s2w(key.c_str())] = s2w(v);
}
static inline bool json_remove(json_spirit::wmObject &vals, const char *key) {
json_spirit::wmObject::iterator i = vals.find(s2w(key));
if (i == vals.end())
return false;
vals.erase(i);
return true;
}
};
using namespace json;
#endif