+/* {{{ ident_data_to_json */
+struct ident_data_to_json__data_s
+{
+ dp_time_t begin;
+ dp_time_t end;
+ yajl_gen handler;
+};
+typedef struct ident_data_to_json__data_s ident_data_to_json__data_t;
+
+#define yajl_gen_string_cast(h,s,l) \
+ yajl_gen_string (h, (unsigned char *) s, (unsigned int) l)
+
+static int ident_data_to_json__get_ident_data (
+ __attribute__((unused)) graph_ident_t *ident, /* {{{ */
+ __attribute__((unused)) const char *ds_name,
+ const dp_data_point_t *dp, size_t dp_num,
+ void *user_data)
+{
+ ident_data_to_json__data_t *data = user_data;
+ size_t i;
+
+ yajl_gen_array_open (data->handler);
+
+ for (i = 0; i < dp_num; i++)
+ {
+ yajl_gen_array_open (data->handler);
+ yajl_gen_integer (data->handler, (long) dp[i].time.tv_sec);
+ if (isnan (dp[i].value))
+ yajl_gen_null (data->handler);
+ else
+ yajl_gen_double (data->handler, dp[i].value);
+ yajl_gen_array_close (data->handler);
+ }
+
+ yajl_gen_array_close (data->handler);
+
+ return (0);
+} /* }}} int ident_data_to_json__get_ident_data */
+
+/* Called for each DS name */
+static int ident_data_to_json__get_ds_name (const graph_ident_t *ident, /* {{{ */
+ const char *ds_name, void *user_data)
+{
+ ident_data_to_json__data_t *data = user_data;
+ int status;
+
+ yajl_gen_map_open (data->handler);
+
+ yajl_gen_string_cast (data->handler, "file", strlen ("file"));
+ ident_to_json (ident, data->handler);
+
+ yajl_gen_string_cast (data->handler, "data_source", strlen ("data_source"));
+ yajl_gen_string_cast (data->handler, ds_name, strlen (ds_name));
+
+ yajl_gen_string_cast (data->handler, "data", strlen ("data"));
+ status = data_provider_get_ident_data (ident, ds_name,
+ data->begin, data->end,
+ ident_data_to_json__get_ident_data,
+ data);
+
+ yajl_gen_map_close (data->handler);
+
+ return (status);
+} /* }}} int ident_data_to_json__get_ds_name */
+
+int ident_data_to_json (const graph_ident_t *ident, /* {{{ */
+ dp_time_t begin, dp_time_t end,
+ yajl_gen handler)
+{
+ ident_data_to_json__data_t data;
+ int status;
+
+ data.begin = begin;
+ data.end = end;
+ data.handler = handler;
+
+ /* Iterate over all DS names */
+ status = data_provider_get_ident_ds_names (ident,
+ ident_data_to_json__get_ds_name, &data);
+ if (status != 0)
+ fprintf (stderr, "ident_data_to_json: data_provider_get_ident_ds_names "
+ "failed with status %i\n", status);
+
+ return (status);
+} /* }}} int ident_data_to_json */
+/* }}} ident_data_to_json */
+
+int ident_describe (const graph_ident_t *ident, /* {{{ */
+ const graph_ident_t *selector,
+ char *buffer, size_t buffer_size)
+{
+ if ((ident == NULL) || (selector == NULL)
+ || (buffer == NULL) || (buffer_size < 2))
+ return (EINVAL);
+
+ buffer[0] = 0;
+
+#define CHECK_FIELD(field) do { \
+ if (strcasecmp (selector->field, ident->field) != 0) \
+ { \
+ if (buffer[0] != 0) \
+ strlcat (buffer, "/", buffer_size); \
+ strlcat (buffer, ident->field, buffer_size); \
+ } \
+} while (0)
+
+ CHECK_FIELD (host);
+ CHECK_FIELD (plugin);
+ CHECK_FIELD (plugin_instance);
+ CHECK_FIELD (type);
+ CHECK_FIELD (type_instance);
+
+#undef CHECK_FIELD
+
+ if (buffer[0] == 0)
+ strlcat (buffer, "default", buffer_size);
+
+ return (0);
+} /* }}} int ident_describe */
+