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// SPDX-License-Identifier: GPL-3.0-or-later
#include "nd_log-internals.h"
void nd_logger_json(BUFFER *wb, struct log_field *fields, size_t fields_max) {
// --- FIELD_PARSER_VERSIONS ---
//
// IMPORTANT:
// THERE ARE 6 VERSIONS OF THIS CODE
//
// 1. journal (direct socket API),
// 2. journal (libsystemd API),
// 3. logfmt,
// 4. json,
// 5. convert to uint64
// 6. convert to int64
//
// UPDATE ALL OF THEM FOR NEW FEATURES OR FIXES
buffer_json_initialize(wb, "\"", "\"", 0, true, BUFFER_JSON_OPTIONS_MINIFY);
CLEAN_BUFFER *tmp = NULL;
for (size_t i = 0; i < fields_max; i++) {
if (!fields[i].entry.set || !fields[i].logfmt)
continue;
const char *key = fields[i].logfmt;
const char *s = NULL;
switch(fields[i].entry.type) {
case NDFT_TXT:
s = fields[i].entry.txt;
break;
case NDFT_STR:
s = string2str(fields[i].entry.str);
break;
case NDFT_BFR:
s = buffer_tostring(fields[i].entry.bfr);
break;
case NDFT_U64:
buffer_json_member_add_uint64(wb, key, fields[i].entry.u64);
break;
case NDFT_I64:
buffer_json_member_add_int64(wb, key, fields[i].entry.i64);
break;
case NDFT_DBL:
buffer_json_member_add_double(wb, key, fields[i].entry.dbl);
break;
case NDFT_UUID:
if(!uuid_is_null(*fields[i].entry.uuid)) {
char u[UUID_COMPACT_STR_LEN];
uuid_unparse_lower_compact(*fields[i].entry.uuid, u);
buffer_json_member_add_string(wb, key, u);
}
break;
case NDFT_CALLBACK: {
if(!tmp)
tmp = buffer_create(1024, NULL);
else
buffer_flush(tmp);
if(fields[i].entry.cb.formatter(tmp, fields[i].entry.cb.formatter_data))
s = buffer_tostring(tmp);
else
s = NULL;
}
break;
default:
s = "UNHANDLED";
break;
}
if(s && *s)
buffer_json_member_add_string(wb, key, s);
}
buffer_json_finalize(wb);
}
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