* Aurelien beorn Rougemont <beorn at gandi dot net>
**/
-
#include "collectd.h"
-#include "plugin.h"
#include "common.h"
+#include "plugin.h"
#include "utils_cache.h"
#include "utils_format_kairosdb.h"
-
/* This is the KAIROSDB format for write_http output
*
* Target format
* ]
*/
-static int kairosdb_escape_string (char *buffer, size_t buffer_size, /* {{{ */
- const char *string)
-{
+static int kairosdb_escape_string(char *buffer, size_t buffer_size, /* {{{ */
+ const char *string) {
size_t dst_pos;
if ((buffer == NULL) || (string == NULL))
- return (-EINVAL);
+ return -EINVAL;
if (buffer_size < 3)
- return (-ENOMEM);
+ return -ENOMEM;
dst_pos = 0;
-#define BUFFER_ADD(c) do { \
- if (dst_pos >= (buffer_size - 1)) { \
- buffer[buffer_size - 1] = 0; \
- return (-ENOMEM); \
- } \
- buffer[dst_pos] = (c); \
- dst_pos++; \
-} while (0)
+#define BUFFER_ADD(c) \
+ do { \
+ if (dst_pos >= (buffer_size - 1)) { \
+ buffer[buffer_size - 1] = 0; \
+ return -ENOMEM; \
+ } \
+ buffer[dst_pos] = (c); \
+ dst_pos++; \
+ } while (0)
/* Escape special characters */
/* authorize -_. and alpha num but also escapes " */
- BUFFER_ADD ('"');
- for (size_t src_pos = 0; string[src_pos] != 0; src_pos++)
- {
- if (isalnum(string[src_pos]) ||
- 0x2d == string[src_pos] ||
- 0x2e == string[src_pos] ||
- 0x5f == string[src_pos])
- BUFFER_ADD (tolower(string[src_pos]));
+ BUFFER_ADD('"');
+ for (size_t src_pos = 0; string[src_pos] != 0; src_pos++) {
+ if (isalnum(string[src_pos]) || 0x2d == string[src_pos] ||
+ 0x2e == string[src_pos] || 0x5f == string[src_pos])
+ BUFFER_ADD(tolower(string[src_pos]));
} /* for */
- BUFFER_ADD ('"');
+ BUFFER_ADD('"');
buffer[dst_pos] = 0;
#undef BUFFER_ADD
- return (0);
+ return 0;
} /* }}} int kairosdb_escape_string */
-static int values_to_kairosdb (char *buffer, size_t buffer_size, /* {{{ */
- const data_set_t *ds, const value_list_t *vl, int store_rates,
- size_t ds_idx)
-{
+static int values_to_kairosdb(char *buffer, size_t buffer_size, /* {{{ */
+ const data_set_t *ds, const value_list_t *vl,
+ int store_rates, size_t ds_idx) {
size_t offset = 0;
gauge_t *rates = NULL;
- memset (buffer, 0, buffer_size);
-
-#define BUFFER_ADD(...) do { \
- int status; \
- status = ssnprintf (buffer + offset, buffer_size - offset, \
- __VA_ARGS__); \
- if (status < 1) \
- { \
- sfree(rates); \
- return (-1); \
- } \
- else if (((size_t) status) >= (buffer_size - offset)) \
- { \
- sfree(rates); \
- return (-ENOMEM); \
- } \
- else \
- offset += ((size_t) status); \
-} while (0)
-
- if (ds->ds[ds_idx].type == DS_TYPE_GAUGE)
- {
- if (isfinite (vl->values[ds_idx].gauge))
- {
- BUFFER_ADD ("[[");
- BUFFER_ADD ("%"PRIu64, CDTIME_T_TO_MS (vl->time));
- BUFFER_ADD (",");
- BUFFER_ADD (JSON_GAUGE_FORMAT, vl->values[ds_idx].gauge);
- }
- else
- {
- DEBUG ("utils_format_kairosdb: invalid vl->values[ds_idx].gauge for %s|%s|%s|%s|%s",
- vl->plugin,
- vl->plugin_instance,
- vl->type,
- vl->type_instance,
- ds->ds[ds_idx].name);
- return (-1);
+ memset(buffer, 0, buffer_size);
+
+#define BUFFER_ADD(...) \
+ do { \
+ int status; \
+ status = snprintf(buffer + offset, buffer_size - offset, __VA_ARGS__); \
+ if (status < 1) { \
+ sfree(rates); \
+ return -1; \
+ } else if (((size_t)status) >= (buffer_size - offset)) { \
+ sfree(rates); \
+ return -ENOMEM; \
+ } else \
+ offset += ((size_t)status); \
+ } while (0)
+
+ if (ds->ds[ds_idx].type == DS_TYPE_GAUGE) {
+ if (isfinite(vl->values[ds_idx].gauge)) {
+ BUFFER_ADD("[[");
+ BUFFER_ADD("%" PRIu64, CDTIME_T_TO_MS(vl->time));
+ BUFFER_ADD(",");
+ BUFFER_ADD(JSON_GAUGE_FORMAT, vl->values[ds_idx].gauge);
+ } else {
+ DEBUG("utils_format_kairosdb: invalid vl->values[ds_idx].gauge for "
+ "%s|%s|%s|%s|%s",
+ vl->plugin, vl->plugin_instance, vl->type, vl->type_instance,
+ ds->ds[ds_idx].name);
+ return -1;
}
- }
- else if (store_rates)
- {
- if (rates == NULL)
- rates = uc_get_rate (ds, vl);
+ } else if (store_rates) {
if (rates == NULL)
- {
- WARNING ("utils_format_kairosdb: uc_get_rate failed for %s|%s|%s|%s|%s",
- vl->plugin,
- vl->plugin_instance,
- vl->type,
- vl->type_instance,
- ds->ds[ds_idx].name);
-
- return (-1);
- }
+ rates = uc_get_rate(ds, vl);
+ if (rates == NULL) {
+ WARNING("utils_format_kairosdb: uc_get_rate failed for %s|%s|%s|%s|%s",
+ vl->plugin, vl->plugin_instance, vl->type, vl->type_instance,
+ ds->ds[ds_idx].name);
- if (isfinite (rates[ds_idx]))
- {
- BUFFER_ADD ("[[");
- BUFFER_ADD ("%"PRIu64, CDTIME_T_TO_MS (vl->time));
- BUFFER_ADD (",");
- BUFFER_ADD (JSON_GAUGE_FORMAT, rates[ds_idx]);
+ return -1;
}
- else
- {
- WARNING ("utils_format_kairosdb: invalid rates[ds_idx] for %s|%s|%s|%s|%s",
- vl->plugin,
- vl->plugin_instance,
- vl->type,
- vl->type_instance,
- ds->ds[ds_idx].name);
+
+ if (isfinite(rates[ds_idx])) {
+ BUFFER_ADD("[[");
+ BUFFER_ADD("%" PRIu64, CDTIME_T_TO_MS(vl->time));
+ BUFFER_ADD(",");
+ BUFFER_ADD(JSON_GAUGE_FORMAT, rates[ds_idx]);
+ } else {
+ WARNING("utils_format_kairosdb: invalid rates[ds_idx] for %s|%s|%s|%s|%s",
+ vl->plugin, vl->plugin_instance, vl->type, vl->type_instance,
+ ds->ds[ds_idx].name);
sfree(rates);
- return (-1);
+ return -1;
}
+ } else if (ds->ds[ds_idx].type == DS_TYPE_COUNTER) {
+ BUFFER_ADD("[[");
+ BUFFER_ADD("%" PRIu64, CDTIME_T_TO_MS(vl->time));
+ BUFFER_ADD(",");
+ BUFFER_ADD("%llu", vl->values[ds_idx].counter);
+ } else if (ds->ds[ds_idx].type == DS_TYPE_DERIVE) {
+ BUFFER_ADD("[[");
+ BUFFER_ADD("%" PRIu64, CDTIME_T_TO_MS(vl->time));
+ BUFFER_ADD(",");
+ BUFFER_ADD("%" PRIi64, vl->values[ds_idx].derive);
+ } else if (ds->ds[ds_idx].type == DS_TYPE_ABSOLUTE) {
+ BUFFER_ADD("[[");
+ BUFFER_ADD("%" PRIu64, CDTIME_T_TO_MS(vl->time));
+ BUFFER_ADD(",");
+ BUFFER_ADD("%" PRIu64, vl->values[ds_idx].absolute);
+ } else {
+ ERROR("format_kairosdb: Unknown data source type: %i", ds->ds[ds_idx].type);
+ sfree(rates);
+ return -1;
}
- else if (ds->ds[ds_idx].type == DS_TYPE_COUNTER)
- {
- BUFFER_ADD ("[[");
- BUFFER_ADD ("%"PRIu64, CDTIME_T_TO_MS (vl->time));
- BUFFER_ADD (",");
- BUFFER_ADD ("%llu", vl->values[ds_idx].counter);
- }
- else if (ds->ds[ds_idx].type == DS_TYPE_DERIVE)
- {
- BUFFER_ADD ("[[");
- BUFFER_ADD ("%"PRIu64, CDTIME_T_TO_MS (vl->time));
- BUFFER_ADD (",");
- BUFFER_ADD ("%"PRIi64, vl->values[ds_idx].derive);
- }
- else if (ds->ds[ds_idx].type == DS_TYPE_ABSOLUTE)
- {
- BUFFER_ADD ("[[");
- BUFFER_ADD ("%"PRIu64, CDTIME_T_TO_MS (vl->time));
- BUFFER_ADD (",");
- BUFFER_ADD ("%"PRIu64, vl->values[ds_idx].absolute);
- }
- else
- {
- ERROR ("format_kairosdb: Unknown data source type: %i",
- ds->ds[ds_idx].type);
- sfree (rates);
- return (-1);
- }
- BUFFER_ADD ("]]");
+ BUFFER_ADD("]]");
#undef BUFFER_ADD
- DEBUG ("format_kairosdb: values_to_kairosdb: buffer = %s;", buffer);
+ DEBUG("format_kairosdb: values_to_kairosdb: buffer = %s;", buffer);
sfree(rates);
- return (0);
+ return 0;
} /* }}} int values_to_kairosdb */
-static int value_list_to_kairosdb (char *buffer, size_t buffer_size, /* {{{ */
- const data_set_t *ds, const value_list_t *vl, int store_rates)
-{
+static int value_list_to_kairosdb(char *buffer, size_t buffer_size, /* {{{ */
+ const data_set_t *ds, const value_list_t *vl,
+ int store_rates,
+ char const *const *http_attrs,
+ size_t http_attrs_num, int data_ttl,
+ char const *metrics_prefix) {
char temp[512];
size_t offset = 0;
int status;
- memset (buffer, 0, buffer_size);
-
-#define BUFFER_ADD(...) do { \
- status = ssnprintf (buffer + offset, buffer_size - offset, \
- __VA_ARGS__); \
- if (status < 1) \
- return (-1); \
- else if (((size_t) status) >= (buffer_size - offset)) \
- return (-ENOMEM); \
- else \
- offset += ((size_t) status); \
-} while (0)
-
-#define BUFFER_ADD_KEYVAL(key, value) do { \
- status = kairosdb_escape_string (temp, sizeof (temp), (value)); \
- if (status != 0) \
- return (status); \
- BUFFER_ADD (",\"%s\": %s", (key), temp); \
-} while (0)
-
- for (size_t i = 0; i < ds->ds_num; i++)
- {
+ memset(buffer, 0, buffer_size);
+
+#define BUFFER_ADD(...) \
+ do { \
+ status = snprintf(buffer + offset, buffer_size - offset, __VA_ARGS__); \
+ if (status < 1) \
+ return -1; \
+ else if (((size_t)status) >= (buffer_size - offset)) \
+ return -ENOMEM; \
+ else \
+ offset += ((size_t)status); \
+ } while (0)
+
+#define BUFFER_ADD_KEYVAL(key, value) \
+ do { \
+ status = kairosdb_escape_string(temp, sizeof(temp), (value)); \
+ if (status != 0) \
+ return status; \
+ BUFFER_ADD(",\"%s\": %s", (key), temp); \
+ } while (0)
+
+ for (size_t i = 0; i < ds->ds_num; i++) {
/* All value lists have a leading comma. The first one will be replaced with
* a square bracket in `format_kairosdb_finalize'. */
- BUFFER_ADD (",{");
+ BUFFER_ADD(",{\"name\":\"");
- BUFFER_ADD ("\"name\":\"collectd");
+ if (metrics_prefix != NULL) {
+ BUFFER_ADD("%s.", metrics_prefix);
+ }
- BUFFER_ADD (".%s", vl->plugin);
+ BUFFER_ADD("%s", vl->plugin);
- status = values_to_kairosdb (temp, sizeof (temp), ds, vl, store_rates, i);
+ status = values_to_kairosdb(temp, sizeof(temp), ds, vl, store_rates, i);
if (status != 0)
- return (status);
+ return status;
- BUFFER_ADD ("\", \"datapoints\": %s", temp);
+ BUFFER_ADD("\", \"datapoints\": %s", temp);
/*
* Now adds meta data to metric as tags
*/
- memset (temp, 0, sizeof(temp));
+ memset(temp, 0, sizeof(temp));
+
+ if (data_ttl != 0)
+ BUFFER_ADD(", \"ttl\": %i", data_ttl);
- BUFFER_ADD (", \"tags\":\{");
+ BUFFER_ADD(", \"tags\":\{");
+
+ BUFFER_ADD("\"host\": \"%s\"", vl->host);
+ for (size_t j = 0; j < http_attrs_num; j += 2) {
+ BUFFER_ADD(", \"%s\":", http_attrs[j]);
+ BUFFER_ADD(" \"%s\"", http_attrs[j + 1]);
+ }
- BUFFER_ADD ("\"host\": \"%s\"", vl->host);
if (strlen(vl->plugin_instance))
- BUFFER_ADD_KEYVAL ("plugin_instance", vl->plugin_instance);
- BUFFER_ADD_KEYVAL ("type", vl->type);
+ BUFFER_ADD_KEYVAL("plugin_instance", vl->plugin_instance);
+ BUFFER_ADD_KEYVAL("type", vl->type);
if (strlen(vl->type_instance))
- BUFFER_ADD_KEYVAL ("type_instance", vl->type_instance);
+ BUFFER_ADD_KEYVAL("type_instance", vl->type_instance);
if (ds->ds_num != 1)
- BUFFER_ADD_KEYVAL ("ds", ds->ds[i].name);
- BUFFER_ADD ("}}");
+ BUFFER_ADD_KEYVAL("ds", ds->ds[i].name);
+ BUFFER_ADD("}}");
} /* for ds->ds_num */
#undef BUFFER_ADD_KEYVAL
#undef BUFFER_ADD
- DEBUG ("format_kairosdb: value_list_to_kairosdb: buffer = %s;", buffer);
+ DEBUG("format_kairosdb: value_list_to_kairosdb: buffer = %s;", buffer);
- return (0);
+ return 0;
} /* }}} int value_list_to_kairosdb */
-static int format_kairosdb_value_list_nocheck (char *buffer, /* {{{ */
- size_t *ret_buffer_fill, size_t *ret_buffer_free,
- const data_set_t *ds, const value_list_t *vl,
- int store_rates, size_t temp_size)
-{
+static int format_kairosdb_value_list_nocheck(
+ char *buffer, /* {{{ */
+ size_t *ret_buffer_fill, size_t *ret_buffer_free, const data_set_t *ds,
+ const value_list_t *vl, int store_rates, size_t temp_size,
+ char const *const *http_attrs, size_t http_attrs_num, int data_ttl,
+ char const *metrics_prefix) {
char temp[temp_size];
int status;
- status = value_list_to_kairosdb (temp, sizeof (temp), ds, vl, store_rates);
+ status = value_list_to_kairosdb(temp, sizeof(temp), ds, vl, store_rates,
+ http_attrs, http_attrs_num, data_ttl,
+ metrics_prefix);
if (status != 0)
- return (status);
- temp_size = strlen (temp);
+ return status;
+ temp_size = strlen(temp);
- memcpy (buffer + (*ret_buffer_fill), temp, temp_size + 1);
+ memcpy(buffer + (*ret_buffer_fill), temp, temp_size + 1);
(*ret_buffer_fill) += temp_size;
(*ret_buffer_free) -= temp_size;
- return (0);
+ return 0;
} /* }}} int format_kairosdb_value_list_nocheck */
-int format_kairosdb_initialize (char *buffer, /* {{{ */
- size_t *ret_buffer_fill, size_t *ret_buffer_free)
-{
+int format_kairosdb_initialize(char *buffer, /* {{{ */
+ size_t *ret_buffer_fill,
+ size_t *ret_buffer_free) {
size_t buffer_fill;
size_t buffer_free;
- if ((buffer == NULL) || (ret_buffer_fill == NULL) || (ret_buffer_free == NULL))
- return (-EINVAL);
+ if ((buffer == NULL) || (ret_buffer_fill == NULL) ||
+ (ret_buffer_free == NULL))
+ return -EINVAL;
buffer_fill = *ret_buffer_fill;
buffer_free = *ret_buffer_free;
buffer_fill = 0;
if (buffer_free < 3)
- return (-ENOMEM);
+ return -ENOMEM;
- memset (buffer, 0, buffer_free);
+ memset(buffer, 0, buffer_free);
*ret_buffer_fill = buffer_fill;
*ret_buffer_free = buffer_free;
- return (0);
+ return 0;
} /* }}} int format_kairosdb_initialize */
-int format_kairosdb_finalize (char *buffer, /* {{{ */
- size_t *ret_buffer_fill, size_t *ret_buffer_free)
-{
+int format_kairosdb_finalize(char *buffer, /* {{{ */
+ size_t *ret_buffer_fill, size_t *ret_buffer_free) {
size_t pos;
- if ((buffer == NULL) || (ret_buffer_fill == NULL) || (ret_buffer_free == NULL))
- return (-EINVAL);
+ if ((buffer == NULL) || (ret_buffer_fill == NULL) ||
+ (ret_buffer_free == NULL))
+ return -EINVAL;
if (*ret_buffer_free < 2)
- return (-ENOMEM);
+ return -ENOMEM;
/* Replace the leading comma added in `value_list_to_kairosdb' with a square
* bracket. */
if (buffer[0] != ',')
- return (-EINVAL);
+ return -EINVAL;
buffer[0] = '[';
pos = *ret_buffer_fill;
buffer[pos] = ']';
- buffer[pos+1] = 0;
+ buffer[pos + 1] = 0;
(*ret_buffer_fill)++;
(*ret_buffer_free)--;
- return (0);
+ return 0;
} /* }}} int format_kairosdb_finalize */
-int format_kairosdb_value_list (char *buffer, /* {{{ */
- size_t *ret_buffer_fill, size_t *ret_buffer_free,
- const data_set_t *ds, const value_list_t *vl, int store_rates)
-{
- if ((buffer == NULL)
- || (ret_buffer_fill == NULL) || (ret_buffer_free == NULL)
- || (ds == NULL) || (vl == NULL))
- return (-EINVAL);
+int format_kairosdb_value_list(char *buffer, /* {{{ */
+ size_t *ret_buffer_fill, size_t *ret_buffer_free,
+ const data_set_t *ds, const value_list_t *vl,
+ int store_rates, char const *const *http_attrs,
+ size_t http_attrs_num, int data_ttl,
+ char const *metrics_prefix) {
+ if ((buffer == NULL) || (ret_buffer_fill == NULL) ||
+ (ret_buffer_free == NULL) || (ds == NULL) || (vl == NULL))
+ return -EINVAL;
if (*ret_buffer_free < 3)
- return (-ENOMEM);
+ return -ENOMEM;
- return (format_kairosdb_value_list_nocheck (buffer,
- ret_buffer_fill, ret_buffer_free, ds, vl,
- store_rates, (*ret_buffer_free) - 2));
+ return format_kairosdb_value_list_nocheck(
+ buffer, ret_buffer_fill, ret_buffer_free, ds, vl, store_rates,
+ (*ret_buffer_free) - 2, http_attrs, http_attrs_num, data_ttl,
+ metrics_prefix);
} /* }}} int format_kairosdb_value_list */
/* vim: set sw=2 sts=2 et fdm=marker : */
projects / collectd.git / blobdiff