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* JSON encoding of YANG metadata according to RFC 7952

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* XML -> JSON translation
This commit is contained in:
Olof hagsand 2021-08-17 15:15:37 +02:00
parent 76e59873c2
commit 6bf3112fe7
8 changed files with 145 additions and 29 deletions
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69
lib/src/clixon_json.c
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@ -688,6 +688,39 @@ nullchild(cbuf *cb,
return retval;
}
/*!
{
"example-social:uint8-numbers": [17],
"@example-social:uint8-numbers": [
{
"ietf-list-pagination:remaining": 5
}
]
}
*/
static int
json_metadata_encoding(cbuf *cb,
cxobj *x,
int level,
int pretty,
char *modname,
char *name,
char *modname2,
char *name2,
char *val)
{
int retval = -1;
cprintf(cb, ",\"@%s:%s\": [", modname, name);
cprintf(cb, "%*s", pretty?((level+1)*JSON_INDENT):0, "{");
cprintf(cb, "\"%s:%s\": %s", modname2, name2, val);
cprintf(cb, "%*s", pretty?((level+1)*JSON_INDENT):0, "}");
cprintf(cb, "%*s", pretty?(level*JSON_INDENT):0, "]");
retval = 0;
// done:
return retval;
}
/*! Do the actual work of translating XML to JSON
* @param[out] cb Cligen text buffer containing json on exit
* @param[in] x XML tree structure containing XML to translate
@ -840,13 +873,8 @@ xml2json1_cbuf(cbuf *cb,
commas = xml_child_nr_notype(x, CX_ATTR) - 1;
for (i=0; i<xml_child_nr(x); i++){
xc = xml_child_i(x, i);
if (xml_type(xc) == CX_ATTR){
#if 1 /* Work in progress, identify md:annotations */
continue;
#else
if (xml_type(xc) == CX_ATTR)
continue; /* XXX Only xmlns attributes mapped */
#endif
}
xc_arraytype = array_eval(i?xml_child_i(x,i-1):NULL,
xc,
xml_child_i(x, i+1));
@ -860,6 +888,35 @@ xml2json1_cbuf(cbuf *cb,
--commas;
}
}
#ifdef LIST_PAGINATION /* identify md:annotations as RFC 7952 Sec 5.2.1*/
for (i=0; i<xml_child_nr(x); i++){
xc = xml_child_i(x, i);
if (xml_type(xc) == CX_ATTR){
int ismeta = 0;
char *namespace = NULL;
yang_stmt *ymod;
if (xml2ns(xc, xml_prefix(xc), &namespace) < 0)
goto done;
if (namespace == NULL)
continue;
if ((ymod = yang_find_module_by_namespace(ys_spec(ys), namespace)) == NULL)
continue;
if (xml2ns(xc, xml_prefix(xc), &namespace) < 0)
goto done;
if (yang_metadata_annotation_check(xc, ymod, &ismeta) < 0)
goto done;
if (!ismeta)
continue;
if (json_metadata_encoding(cb, x, level, pretty,
modname, xml_name(x),
yang_argument_get(ymod),
xml_name(xc),
xml_value(xc)) < 0)
goto done;
}
}
#endif
switch (arraytype){
case BODY_ARRAY:
break;