static int json_get_value_size(struct json_parse_state_s* state) {
if (json_skip_whitespace(state)) {
// consumed the whole buffer when we expected a value!
return 1;
}
state->dom_size += sizeof(struct json_value_s);
switch (state->src[state->offset]) {
case '"':
return json_get_string_size(state);
case '{':
return json_get_object_size(state);
case '[':
return json_get_array_size(state);
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
return json_get_number_size(state);
default:
if ((state->offset + 4) < state->size &&
't' == state->src[state->offset + 0] &&
'r' == state->src[state->offset + 1] &&
'u' == state->src[state->offset + 2] &&
'e' == state->src[state->offset + 3]) {
state->offset += 4;
return 0;
} else if ((state->offset + 5) < state->size &&
'f' == state->src[state->offset + 0] &&
'a' == state->src[state->offset + 1] &&
'l' == state->src[state->offset + 2] &&
's' == state->src[state->offset + 3] &&
'e' == state->src[state->offset + 4]) {
state->offset += 5;
return 0;
} else if ((state->offset + 4) < state->size &&
'n' == state->src[state->offset + 0] &&
'u' == state->src[state->offset + 1] &&
'l' == state->src[state->offset + 2] &&
'l' == state->src[state->offset + 3]) {
state->offset += 4;
return 0;
}
// invalid value!
return 1;
}
}
/*
--> {"uuid":"42E6E69DAEF6483FBBA412A28AF7CD76","attrSet":["wlanSwitchState", "lightSwitchState"]}
<-- {"uuid":"42E6E69DAEF6483FBBA412A28AF7CD76","attrSet":["wlanSwitchState"],"wlanSwitchState":{"value":"1","when":"1404443369"}}
*/
static int msdp_get_status(char *params)
{
int ret = SERVICE_RESULT_ERR;
char *attrset;
char *json_out = NULL;
char params_in[512] = {0};
int attrset_size, attrset_len = 0;
//char szPostString[1024] = "{\"uuid\":\"2427287C75CD579897D3DB5854E46A2F\",\"wlanSwitchState\":{\"value\":\"1\",\"when\":\"1404443369\"}}";
attrset = json_get_value_by_name(params, strlen(params), JSON_KEY_ATTRSET,
&attrset_len, NULL);
if (attrset) {
attrset_size = json_get_array_size(attrset, attrset_len);
}
if (NULL == attrset || attrset_size == 0) {
char uuid[MAX_UUID_LEN] = {0};
int uuid_len = 0;
char *uuid_ptr = json_get_value_by_name(params, strlen(params), JSON_KEY_UUID,
&uuid_len, NULL);
PTR_RETURN(uuid_ptr, SERVICE_RESULT_ERR, CALL_FUCTION_FAILED,
"json_get_value_by_name(uuid)");
strncpy(uuid, uuid_ptr, sizeof(uuid) > uuid_len ? uuid_len : sizeof(uuid) - 1);
char attrset[512] = {0};
ret = msdp_get_all_attrname(uuid, attrset, sizeof(attrset));
RET_RETURN(ret, "get all attribute name fail, uuid:%s", uuid);
log_trace("attrset = %s\n", attrset);
snprintf(params_in, sizeof(params_in) - 1, GET_DEVICE_ATTR_STRING_FMT, uuid,
attrset);
params = params_in;
}
//遍历attrset，并调用厂商注册的接口，返回属性json串
ret = msdp_get_device_status_handler(params, msdp_get_attr_each_cb,
__get_attribute, &json_out);
RET_RETURN(ret, CALL_FUCTION_FAILED, "msdp_status_handler");
log_trace("json_out = %s", json_out ? (json_out) : "NULL");
//todo: postDeviceData/deviceDataChange
if (json_out) {
int str_len, post_ret = SERVICE_RESULT_ERR;
char devid_str[18] = {0};
char *dev_id = json_get_value_by_name(params, strlen(params), JSON_KEY_DEVID,
&str_len, NULL);
if (dev_id != NULL) {
post_ret = lmns_post_device_data(devid_str, json_out);
RET_GOTO(post_ret, end, CALL_FUCTION_FAILED, "lmns_post_device_data");
} else {
int post_ret = msdp_add_asyncpost_task(json_out);
RET_GOTO(post_ret, end, "add async post task fail, params:%s", json_out);
json_out = NULL;
}
}
end:
if (json_out) {
msdp_free_buff(json_out);
}
return ret;
}
static int json_get_value_size(struct json_parse_state_s *state,
int is_global_object) {
if (is_global_object) {
state->dom_size += sizeof(struct json_value_s);
return json_get_object_size(state, /* is_global_object = */ 1);
} else {
state->dom_size += sizeof(struct json_value_s);
if (json_skip_all_skippables(state)) {
state->error = json_parse_error_premature_end_of_buffer;
return 1;
}
switch (state->src[state->offset]) {
case '"':
return json_get_string_size(state);
case '{':
return json_get_object_size(state, /* is_global_object = */ 0);
case '[':
return json_get_array_size(state);
case '+':
case '-':
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
case '.':
return json_get_number_size(state);
default:
if ((state->offset + 4) <= state->size &&
't' == state->src[state->offset + 0] &&
'r' == state->src[state->offset + 1] &&
'u' == state->src[state->offset + 2] &&
'e' == state->src[state->offset + 3]) {
state->offset += 4;
return 0;
} else if ((state->offset + 5) <= state->size &&
'f' == state->src[state->offset + 0] &&
'a' == state->src[state->offset + 1] &&
'l' == state->src[state->offset + 2] &&
's' == state->src[state->offset + 3] &&
'e' == state->src[state->offset + 4]) {
state->offset += 5;
return 0;
} else if ((state->offset + 4) <= state->size &&
'n' == state->src[state->offset + 0] &&
'u' == state->src[state->offset + 1] &&
'l' == state->src[state->offset + 2] &&
'l' == state->src[state->offset + 3]) {
state->offset += 4;
return 0;
}
// invalid value!
state->error = json_parse_error_invalid_value;
return 1;
}
}
}
