diff options
author | Costa Tsaousis <costa@tsaousis.gr> | 2018-10-27 19:44:27 +0300 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-10-27 19:44:27 +0300 |
commit | 798c141c49ee85bddc8f48f25d2cb593ec96da07 (patch) | |
tree | 61daf51c5c18f625ca2541b9abe762ad27f13b85 /web/api/formatters/json_wrapper.c | |
parent | bcdfedbe8215fdf461b61900eba2a9de4be6c0b8 (diff) |
Split the API formatters in modules (#4504)
* split all API formatters in modules
* added markdown formatting
* updated csv readme
* updated csv readme
* more documentation
* added more documentation
* updated documentation
* fixed typo
* fixed typo
Diffstat (limited to 'web/api/formatters/json_wrapper.c')
-rw-r--r-- | web/api/formatters/json_wrapper.c | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/web/api/formatters/json_wrapper.c b/web/api/formatters/json_wrapper.c new file mode 100644 index 0000000000..2538835680 --- /dev/null +++ b/web/api/formatters/json_wrapper.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-3.0-or-later + +#include "json_wrapper.h" + +void rrdr_json_wrapper_begin(RRDR *r, BUFFER *wb, uint32_t format, RRDR_OPTIONS options, int string_value) { + rrdset_check_rdlock(r->st); + + long rows = rrdr_rows(r); + long c, i; + RRDDIM *rd; + + //info("JSONWRAPPER(): %s: BEGIN", r->st->id); + char kq[2] = "", // key quote + sq[2] = ""; // string quote + + if( options & RRDR_OPTION_GOOGLE_JSON ) { + kq[0] = '\0'; + sq[0] = '\''; + } + else { + kq[0] = '"'; + sq[0] = '"'; + } + + buffer_sprintf(wb, "{\n" + " %sapi%s: 1,\n" + " %sid%s: %s%s%s,\n" + " %sname%s: %s%s%s,\n" + " %sview_update_every%s: %d,\n" + " %supdate_every%s: %d,\n" + " %sfirst_entry%s: %u,\n" + " %slast_entry%s: %u,\n" + " %sbefore%s: %u,\n" + " %safter%s: %u,\n" + " %sdimension_names%s: [" + , kq, kq + , kq, kq, sq, r->st->id, sq + , kq, kq, sq, r->st->name, sq + , kq, kq, r->update_every + , kq, kq, r->st->update_every + , kq, kq, (uint32_t)rrdset_first_entry_t(r->st) + , kq, kq, (uint32_t)rrdset_last_entry_t(r->st) + , kq, kq, (uint32_t)r->before + , kq, kq, (uint32_t)r->after + , kq, kq); + + for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) { + if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue; + if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue; + + if(i) buffer_strcat(wb, ", "); + buffer_strcat(wb, sq); + buffer_strcat(wb, rd->name); + buffer_strcat(wb, sq); + i++; + } + if(!i) { +#ifdef NETDATA_INTERNAL_CHECKS + error("RRDR is empty for %s (RRDR has %d dimensions, options is 0x%08x)", r->st->id, r->d, options); +#endif + rows = 0; + buffer_strcat(wb, sq); + buffer_strcat(wb, "no data"); + buffer_strcat(wb, sq); + } + + buffer_sprintf(wb, "],\n" + " %sdimension_ids%s: [" + , kq, kq); + + for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) { + if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue; + if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue; + + if(i) buffer_strcat(wb, ", "); + buffer_strcat(wb, sq); + buffer_strcat(wb, rd->id); + buffer_strcat(wb, sq); + i++; + } + if(!i) { + rows = 0; + buffer_strcat(wb, sq); + buffer_strcat(wb, "no data"); + buffer_strcat(wb, sq); + } + + buffer_sprintf(wb, "],\n" + " %slatest_values%s: [" + , kq, kq); + + for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) { + if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue; + if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue; + + if(i) buffer_strcat(wb, ", "); + i++; + + storage_number n = rd->values[rrdset_last_slot(r->st)]; + + if(!does_storage_number_exist(n)) + buffer_strcat(wb, "null"); + else + buffer_rrd_value(wb, unpack_storage_number(n)); + } + if(!i) { + rows = 0; + buffer_strcat(wb, "null"); + } + + buffer_sprintf(wb, "],\n" + " %sview_latest_values%s: [" + , kq, kq); + + i = 0; + if(rows) { + calculated_number total = 1; + + if(unlikely(options & RRDR_OPTION_PERCENTAGE)) { + total = 0; + for(c = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) { + calculated_number *cn = &r->v[ (rrdr_rows(r) - 1) * r->d ]; + calculated_number n = cn[c]; + + if(likely((options & RRDR_OPTION_ABSOLUTE) && n < 0)) + n = -n; + + total += n; + } + // prevent a division by zero + if(total == 0) total = 1; + } + + for(c = 0, i = 0, rd = r->st->dimensions; rd && c < r->d ;c++, rd = rd->next) { + if(unlikely(r->od[c] & RRDR_DIMENSION_HIDDEN)) continue; + if(unlikely((options & RRDR_OPTION_NONZERO) && !(r->od[c] & RRDR_DIMENSION_NONZERO))) continue; + + if(i) buffer_strcat(wb, ", "); + i++; + + calculated_number *cn = &r->v[ (rrdr_rows(r) - 1) * r->d ]; + RRDR_VALUE_FLAGS *co = &r->o[ (rrdr_rows(r) - 1) * r->d ]; + calculated_number n = cn[c]; + + if(co[c] & RRDR_VALUE_EMPTY) { + if(options & RRDR_OPTION_NULL2ZERO) + buffer_strcat(wb, "0"); + else + buffer_strcat(wb, "null"); + } + else { + if(unlikely((options & RRDR_OPTION_ABSOLUTE) && n < 0)) + n = -n; + + if(unlikely(options & RRDR_OPTION_PERCENTAGE)) + n = n * 100 / total; + + buffer_rrd_value(wb, n); + } + } + } + if(!i) { + rows = 0; + buffer_strcat(wb, "null"); + } + + buffer_sprintf(wb, "],\n" + " %sdimensions%s: %ld,\n" + " %spoints%s: %ld,\n" + " %sformat%s: %s" + , kq, kq, i + , kq, kq, rows + , kq, kq, sq + ); + + rrdr_buffer_print_format(wb, format); + + buffer_sprintf(wb, "%s,\n" + " %sresult%s: " + , sq + , kq, kq + ); + + if(string_value) buffer_strcat(wb, sq); + //info("JSONWRAPPER(): %s: END", r->st->id); +} + +void rrdr_json_wrapper_end(RRDR *r, BUFFER *wb, uint32_t format, uint32_t options, int string_value) { + (void)format; + + char kq[2] = "", // key quote + sq[2] = ""; // string quote + + if( options & RRDR_OPTION_GOOGLE_JSON ) { + kq[0] = '\0'; + sq[0] = '\''; + } + else { + kq[0] = '"'; + sq[0] = '"'; + } + + if(string_value) buffer_strcat(wb, sq); + + buffer_sprintf(wb, ",\n %smin%s: ", kq, kq); + buffer_rrd_value(wb, r->min); + buffer_sprintf(wb, ",\n %smax%s: ", kq, kq); + buffer_rrd_value(wb, r->max); + buffer_strcat(wb, "\n}\n"); +} |