diff options
Diffstat (limited to 'exporting/json/json.c')
| -rw-r--r-- | exporting/json/json.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/exporting/json/json.c b/exporting/json/json.c new file mode 100644 index 0000000000..59ceb046be --- /dev/null +++ b/exporting/json/json.c @@ -0,0 +1,194 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "json.h" + +/** + * Initialize JSON connector + * + * @param instance a connector data structure. + * @return Always returns 0. + */ +int init_json_connector(struct connector *connector) +{ + connector->worker = simple_connector_worker; + + struct simple_connector_config *connector_specific_config = mallocz(sizeof(struct simple_connector_config)); + connector->config.connector_specific_config = (void *)connector_specific_config; + connector_specific_config->default_port = 5448; + + return 0; +} + +/** + * Initialize JSON connector instance + * + * @param instance an instance data structure. + * @return Returns 0 on success, 1 on failure. + */ +int init_json_instance(struct instance *instance) +{ + instance->start_batch_formatting = NULL; + instance->start_host_formatting = NULL; + instance->start_chart_formatting = NULL; + + if (EXPORTING_OPTIONS_DATA_SOURCE(instance->config.options) == EXPORTING_SOURCE_DATA_AS_COLLECTED) + instance->metric_formatting = format_dimension_collected_json_plaintext; + else + instance->metric_formatting = format_dimension_stored_json_plaintext; + + instance->end_chart_formatting = NULL; + instance->end_host_formatting = NULL; + instance->end_batch_formatting = NULL; + + instance->buffer = (void *)buffer_create(0); + if (!instance->buffer) { + error("EXPORTING: cannot create buffer for json exporting connector instance %s", instance->config.name); + return 1; + } + uv_mutex_init(&instance->mutex); + uv_cond_init(&instance->cond_var); + + return 0; +} + +/** + * Format dimension using collected data for JSON connector + * + * @param instance an instance data structure. + * @param rd a dimension. + * @return Always returns 0. + */ +int format_dimension_collected_json_plaintext(struct instance *instance, RRDDIM *rd) +{ + struct engine *engine = instance->connector->engine; + RRDSET *st = rd->rrdset; + RRDHOST *host = st->rrdhost; + + const char *tags_pre = "", *tags_post = "", *tags = host->tags; + if (!tags) + tags = ""; + + if (*tags) { + if (*tags == '{' || *tags == '[' || *tags == '"') { + tags_pre = "\"host_tags\":"; + tags_post = ","; + } else { + tags_pre = "\"host_tags\":\""; + tags_post = "\","; + } + } + + buffer_sprintf( + instance->buffer, + "{" + "\"prefix\":\"%s\"," + "\"hostname\":\"%s\"," + "%s%s%s" + + "\"chart_id\":\"%s\"," + "\"chart_name\":\"%s\"," + "\"chart_family\":\"%s\"," + "\"chart_context\": \"%s\"," + "\"chart_type\":\"%s\"," + "\"units\": \"%s\"," + + "\"id\":\"%s\"," + "\"name\":\"%s\"," + "\"value\":" COLLECTED_NUMBER_FORMAT "," + + "\"timestamp\": %llu}\n", + engine->config.prefix, + engine->config.hostname, + tags_pre, + tags, + tags_post, + + st->id, + st->name, + st->family, + st->context, + st->type, + st->units, + + rd->id, + rd->name, + rd->last_collected_value, + + (unsigned long long)rd->last_collected_time.tv_sec); + + return 0; +} + +/** + * Format dimension using a calculated value from stored data for JSON connector + * + * @param instance an instance data structure. + * @param rd a dimension. + * @return Always returns 0. + */ +int format_dimension_stored_json_plaintext(struct instance *instance, RRDDIM *rd) +{ + struct engine *engine = instance->connector->engine; + RRDSET *st = rd->rrdset; + RRDHOST *host = st->rrdhost; + + time_t last_t; + calculated_number value = exporting_calculate_value_from_stored_data(instance, rd, &last_t); + + if(isnan(value)) + return 0; + + const char *tags_pre = "", *tags_post = "", *tags = host->tags; + if (!tags) + tags = ""; + + if (*tags) { + if (*tags == '{' || *tags == '[' || *tags == '"') { + tags_pre = "\"host_tags\":"; + tags_post = ","; + } else { + tags_pre = "\"host_tags\":\""; + tags_post = "\","; + } + } + + buffer_sprintf( + instance->buffer, + "{" + "\"prefix\":\"%s\"," + "\"hostname\":\"%s\"," + "%s%s%s" + + "\"chart_id\":\"%s\"," + "\"chart_name\":\"%s\"," + "\"chart_family\":\"%s\"," + "\"chart_context\": \"%s\"," + "\"chart_type\":\"%s\"," + "\"units\": \"%s\"," + + "\"id\":\"%s\"," + "\"name\":\"%s\"," + "\"value\":" CALCULATED_NUMBER_FORMAT "," + + "\"timestamp\": %llu}\n", + engine->config.prefix, + engine->config.hostname, + tags_pre, + tags, + tags_post, + + st->id, + st->name, + st->family, + st->context, + st->type, + st->units, + + rd->id, + rd->name, + value, + + (unsigned long long)last_t); + + return 0; +} |