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-rw-r--r--backends/json/Makefile.am4
-rw-r--r--backends/json/json.c152
-rw-r--r--backends/json/json.h34
3 files changed, 190 insertions, 0 deletions
diff --git a/backends/json/Makefile.am b/backends/json/Makefile.am
new file mode 100644
index 0000000..babdcf0
--- /dev/null
+++ b/backends/json/Makefile.am
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
diff --git a/backends/json/json.c b/backends/json/json.c
new file mode 100644
index 0000000..0c7cc73
--- /dev/null
+++ b/backends/json/json.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#define BACKENDS_INTERNALS
+#include "json.h"
+
+// ----------------------------------------------------------------------------
+// json backend
+
+int backends_format_dimension_collected_json_plaintext(
+ BUFFER *b // the buffer to write data to
+ , const char *prefix // the prefix to use
+ , RRDHOST *host // the host this chart comes from
+ , const char *hostname // the hostname (to override host->hostname)
+ , RRDSET *st // the chart
+ , RRDDIM *rd // the dimension
+ , time_t after // the start timestamp
+ , time_t before // the end timestamp
+ , BACKEND_OPTIONS backend_options // BACKEND_SOURCE_* bitmap
+) {
+ (void)host;
+ (void)after;
+ (void)before;
+ (void)backend_options;
+
+ 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(b, "{"
+ "\"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",
+ prefix,
+ 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 1;
+}
+
+int backends_format_dimension_stored_json_plaintext(
+ BUFFER *b // the buffer to write data to
+ , const char *prefix // the prefix to use
+ , RRDHOST *host // the host this chart comes from
+ , const char *hostname // the hostname (to override host->hostname)
+ , RRDSET *st // the chart
+ , RRDDIM *rd // the dimension
+ , time_t after // the start timestamp
+ , time_t before // the end timestamp
+ , BACKEND_OPTIONS backend_options // BACKEND_SOURCE_* bitmap
+) {
+ (void)host;
+
+ time_t first_t = after, last_t = before;
+ calculated_number value = backend_calculate_value_from_stored_data(st, rd, after, before, backend_options, &first_t, &last_t);
+
+ if(!isnan(value)) {
+ 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(b, "{"
+ "\"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",
+ prefix,
+ 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 1;
+ }
+ return 0;
+}
+
+int process_json_response(BUFFER *b) {
+ return discard_response(b, "json");
+}
+
+
diff --git a/backends/json/json.h b/backends/json/json.h
new file mode 100644
index 0000000..78ac376
--- /dev/null
+++ b/backends/json/json.h
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_BACKEND_JSON_H
+#define NETDATA_BACKEND_JSON_H
+
+#include "backends/backends.h"
+
+extern int backends_format_dimension_collected_json_plaintext(
+ BUFFER *b // the buffer to write data to
+ , const char *prefix // the prefix to use
+ , RRDHOST *host // the host this chart comes from
+ , const char *hostname // the hostname (to override host->hostname)
+ , RRDSET *st // the chart
+ , RRDDIM *rd // the dimension
+ , time_t after // the start timestamp
+ , time_t before // the end timestamp
+ , BACKEND_OPTIONS backend_options // BACKEND_SOURCE_* bitmap
+);
+
+extern int backends_format_dimension_stored_json_plaintext(
+ BUFFER *b // the buffer to write data to
+ , const char *prefix // the prefix to use
+ , RRDHOST *host // the host this chart comes from
+ , const char *hostname // the hostname (to override host->hostname)
+ , RRDSET *st // the chart
+ , RRDDIM *rd // the dimension
+ , time_t after // the start timestamp
+ , time_t before // the end timestamp
+ , BACKEND_OPTIONS backend_options // BACKEND_SOURCE_* bitmap
+);
+
+extern int process_json_response(BUFFER *b);
+
+#endif //NETDATA_BACKEND_JSON_H