/* Queries the key-tree of the parent context for "in_name" and, if found,
* updates the "key" field of the current context. Otherwise, "key" is set to
* NULL. */
static int cj_cb_map_key (void *ctx,
unsigned char const *in_name, yajl_len_t in_name_len)
{
cj_t *db = (cj_t *)ctx;
c_avl_tree_t *tree;
tree = db->state[db->depth-1].tree;
if (tree != NULL)
{
cj_key_t *value = NULL;
char *name;
size_t name_len;
/* Create a null-terminated version of the name. */
name = db->state[db->depth].name;
name_len = COUCH_MIN ((size_t) in_name_len,
sizeof (db->state[db->depth].name) - 1);
memcpy (name, in_name, name_len);
name[name_len] = 0;
if (c_avl_get (tree, name, (void *) &value) == 0)
db->state[db->depth].key = value;
else if (c_avl_get (tree, CJ_ANY, (void *) &value) == 0)
db->state[db->depth].key = value;
else
db->state[db->depth].key = NULL;
}
return (CJ_CB_CONTINUE);
}
static int cj_cb_map_key (void *ctx, const unsigned char *val,
unsigned int len)
{
cj_t *db = (cj_t *)ctx;
c_avl_tree_t *tree;
tree = db->state[db->depth-1].tree;
if (tree != NULL)
{
cj_key_t *value;
char *name;
name = db->state[db->depth].name;
len = COUCH_MIN(len, sizeof (db->state[db->depth].name)-1);
sstrncpy (name, (char *)val, len+1);
if (c_avl_get (tree, name, (void *) &value) == 0)
db->state[db->depth].key = value;
else if (c_avl_get (tree, CJ_ANY, (void *) &value) == 0)
db->state[db->depth].key = value;
else
db->state[db->depth].key = NULL;
}
return (CJ_CB_CONTINUE);
}
static int cj_config_add_key (cj_t *db, /* {{{ */
oconfig_item_t *ci)
{
cj_key_t *key;
int status;
int i;
if ((ci->values_num != 1)
|| (ci->values[0].type != OCONFIG_TYPE_STRING))
{
WARNING ("curl_json plugin: The `Key' block "
"needs exactly one string argument.");
return (-1);
}
key = (cj_key_t *) malloc (sizeof (*key));
if (key == NULL)
{
ERROR ("curl_json plugin: malloc failed.");
return (-1);
}
memset (key, 0, sizeof (*key));
key->magic = CJ_KEY_MAGIC;
if (strcasecmp ("Key", ci->key) == 0)
{
status = cf_util_get_string (ci, &key->path);
if (status != 0)
{
sfree (key);
return (status);
}
}
else
{
ERROR ("curl_json plugin: cj_config: "
"Invalid key: %s", ci->key);
return (-1);
}
status = 0;
for (i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
if (strcasecmp ("Type", child->key) == 0)
status = cf_util_get_string (child, &key->type);
else if (strcasecmp ("Instance", child->key) == 0)
status = cf_util_get_string (child, &key->instance);
else
{
WARNING ("curl_json plugin: Option `%s' not allowed here.", child->key);
status = -1;
}
if (status != 0)
break;
} /* for (i = 0; i < ci->children_num; i++) */
while (status == 0)
{
if (key->type == NULL)
{
WARNING ("curl_json plugin: `Type' missing in `Key' block.");
status = -1;
}
break;
} /* while (status == 0) */
/* store path in a tree that will match the json map structure, example:
* "httpd/requests/count",
* "httpd/requests/current" ->
* { "httpd": { "requests": { "count": $key, "current": $key } } }
*/
if (status == 0)
{
char *ptr;
char *name;
char ent[PATH_MAX];
c_avl_tree_t *tree;
if (db->tree == NULL)
db->tree = cj_avl_create();
tree = db->tree;
name = key->path;
ptr = key->path;
if (*ptr == '/')
++ptr;
name = ptr;
while (*ptr)
{
if (*ptr == '/')
{
c_avl_tree_t *value;
int len;
len = ptr-name;
if (len == 0)
break;
len = COUCH_MIN(len, sizeof (ent)-1);
sstrncpy (ent, name, len+1);
if (c_avl_get (tree, ent, (void *) &value) != 0)
{
value = cj_avl_create ();
c_avl_insert (tree, strdup (ent), value);
}
tree = value;
name = ptr+1;
}
++ptr;
}
if (*name)
c_avl_insert (tree, strdup(name), key);
else
{
ERROR ("curl_json plugin: invalid key: %s", key->path);
status = -1;
}
}
return (status);
} /* }}} int cj_config_add_key */
