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// SPDX-License-Identifier: GPL-3.0-or-later
#include "sqlite_functions.h"
#include "sqlite_context.h"
#include "sqlite_db_migration.h"
#define DB_CONTEXT_METADATA_VERSION 1
const char *database_context_config[] = {
"CREATE TABLE IF NOT EXISTS context (host_id BLOB, id TEXT NOT NULL, version INT NOT NULL, title TEXT NOT NULL, "
"chart_type TEXT NOT NULL, unit TEXT NOT NULL, priority INT NOT NULL, first_time_t INT NOT NULL, "
"last_time_t INT NOT NULL, deleted INT NOT NULL, "
"family TEXT, PRIMARY KEY (host_id, id))",
NULL
};
const char *database_context_cleanup[] = {
"VACUUM",
NULL
};
sqlite3 *db_context_meta = NULL;
/*
* Initialize the SQLite database
* Return 0 on success
*/
int sql_init_context_database(int memory)
{
char sqlite_database[FILENAME_MAX + 1];
int rc;
if (likely(!memory))
snprintfz(sqlite_database, sizeof(sqlite_database) - 1, "%s/context-meta.db", netdata_configured_cache_dir);
else
strcpy(sqlite_database, ":memory:");
rc = sqlite3_open(sqlite_database, &db_context_meta);
if (rc != SQLITE_OK) {
error_report("Failed to initialize database at %s, due to \"%s\"", sqlite_database, sqlite3_errstr(rc));
sqlite3_close(db_context_meta);
db_context_meta = NULL;
return 1;
}
errno = 0;
netdata_log_info("SQLite database %s initialization", sqlite_database);
char buf[1024 + 1] = "";
const char *list[2] = { buf, NULL };
int target_version = DB_CONTEXT_METADATA_VERSION;
if (likely(!memory))
target_version = perform_context_database_migration(db_context_meta, DB_CONTEXT_METADATA_VERSION);
if (configure_sqlite_database(db_context_meta, target_version, "context_config"))
return 1;
if (likely(!memory))
snprintfz(buf, sizeof(buf) - 1, "ATTACH DATABASE \"%s/netdata-meta.db\" as meta", netdata_configured_cache_dir);
else
snprintfz(buf, sizeof(buf) - 1, "ATTACH DATABASE ':memory:' as meta");
if(init_database_batch(db_context_meta, list, "context")) return 1;
if (init_database_batch(db_context_meta, &database_context_config[0], "context_init"))
return 1;
if (init_database_batch(db_context_meta, &database_context_cleanup[0], "context_cleanup"))
return 1;
return 0;
}
//
// Fetching data
//
#define CTX_GET_CHART_LIST "SELECT c.chart_id, c.type||'.'||c.id, c.name, c.context, c.title, c.unit, c.priority, " \
"c.update_every, c.chart_type, c.family FROM chart c WHERE c.host_id = @host_id AND c.chart_id IS NOT NULL"
void ctx_get_chart_list(nd_uuid_t *host_uuid, void (*dict_cb)(SQL_CHART_DATA *, void *), void *data)
{
static __thread sqlite3_stmt *res = NULL;
if (unlikely(!host_uuid)) {
internal_error(true, "Requesting context chart list without host_id");
return;
}
if (!PREPARE_COMPILED_STATEMENT(db_meta, CTX_GET_CHART_LIST, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));
param = 0;
SQL_CHART_DATA chart_data = { 0 };
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
uuid_copy(chart_data.chart_id, *((nd_uuid_t *)sqlite3_column_blob(res, 0)));
chart_data.id = (char *) sqlite3_column_text(res, 1);
chart_data.name = (char *) sqlite3_column_text(res, 2);
chart_data.context = (char *) sqlite3_column_text(res, 3);
chart_data.title = (char *) sqlite3_column_text(res, 4);
chart_data.units = (char *) sqlite3_column_text(res, 5);
chart_data.priority = sqlite3_column_int(res, 6);
chart_data.update_every = sqlite3_column_int(res, 7);
chart_data.chart_type = sqlite3_column_int(res, 8);
chart_data.family = (char *) sqlite3_column_text(res, 9);
dict_cb(&chart_data, data);
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
}
// Dimension list
#define CTX_GET_DIMENSION_LIST "SELECT d.dim_id, d.id, d.name, CASE WHEN INSTR(d.options,\"hidden\") > 0 THEN 1 ELSE 0 END " \
"FROM dimension d WHERE d.chart_id = @id AND d.dim_id IS NOT NULL ORDER BY d.rowid ASC"
void ctx_get_dimension_list(nd_uuid_t *chart_uuid, void (*dict_cb)(SQL_DIMENSION_DATA *, void *), void *data)
{
static __thread sqlite3_stmt *res = NULL;
if (!PREPARE_COMPILED_STATEMENT(db_meta, CTX_GET_DIMENSION_LIST, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC));
SQL_DIMENSION_DATA dimension_data;
param = 0;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
uuid_copy(dimension_data.dim_id, *((nd_uuid_t *)sqlite3_column_blob(res, 0)));
dimension_data.id = (char *) sqlite3_column_text(res, 1);
dimension_data.name = (char *) sqlite3_column_text(res, 2);
dimension_data.hidden = sqlite3_column_int(res, 3);
dict_cb(&dimension_data, data);
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
}
// LABEL LIST
#define CTX_GET_LABEL_LIST "SELECT l.label_key, l.label_value, l.source_type FROM meta.chart_label l WHERE l.chart_id = @id"
void ctx_get_label_list(nd_uuid_t *chart_uuid, void (*dict_cb)(SQL_CLABEL_DATA *, void *), void *data)
{
static __thread sqlite3_stmt *res = NULL;
if (!PREPARE_COMPILED_STATEMENT(db_context_meta, CTX_GET_LABEL_LIST, &res))
return;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, chart_uuid, sizeof(*chart_uuid), SQLITE_STATIC));
param = 0;
SQL_CLABEL_DATA label_data;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
label_data.label_key = (char *) sqlite3_column_text(res, 0);
label_data.label_value = (char *) sqlite3_column_text(res, 1);
label_data.label_source = sqlite3_column_int(res, 2);
dict_cb(&label_data, data);
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
}
// CONTEXT LIST
#define CTX_GET_CONTEXT_LIST "SELECT id, version, title, chart_type, unit, priority, first_time_t, " \
"last_time_t, deleted, family FROM context c WHERE c.host_id = @host_id"
void ctx_get_context_list(nd_uuid_t *host_uuid, void (*dict_cb)(VERSIONED_CONTEXT_DATA *, void *), void *data)
{
if (unlikely(!host_uuid))
return;
static __thread sqlite3_stmt *res = NULL;
if (!PREPARE_COMPILED_STATEMENT(db_context_meta, CTX_GET_CONTEXT_LIST, &res))
return;
VERSIONED_CONTEXT_DATA context_data = {0};
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));
param = 0;
while (sqlite3_step_monitored(res) == SQLITE_ROW) {
context_data.id = (char *) sqlite3_column_text(res, 0);
context_data.version = sqlite3_column_int64(res, 1);
context_data.title = (char *) sqlite3_column_text(res, 2);
context_data.chart_type = (char *) sqlite3_column_text(res, 3);
context_data.units = (char *) sqlite3_column_text(res, 4);
context_data.priority = sqlite3_column_int64(res, 5);
context_data.first_time_s = sqlite3_column_int64(res, 6);
context_data.last_time_s = sqlite3_column_int64(res, 7);
context_data.deleted = sqlite3_column_int(res, 8);
context_data.family = (char *) sqlite3_column_text(res, 9);
dict_cb(&context_data, data);
}
done:
REPORT_BIND_FAIL(res, param);
SQLITE_RESET(res);
}
//
// Storing Data
//
#define CTX_STORE_CONTEXT \
"INSERT OR REPLACE INTO context " \
"(host_id, id, version, title, chart_type, unit, priority, first_time_t, last_time_t, deleted, family) " \
"VALUES (@host_id, @context, @version, @title, @chart_type, @unit, @priority, @first_t, @last_t, @delete, @family)"
int ctx_store_context(nd_uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)
{
int rc_stored = 1;
sqlite3_stmt *res = NULL;
if (unlikely(!host_uuid || !context_data || !context_data->id))
return 0;
if (!PREPARE_STATEMENT(db_context_meta, CTX_STORE_CONTEXT, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->id, 0));
SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->version));
SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->title, 0));
SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->chart_type, 0));
SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->units, 0));
SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->priority));
SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->first_time_s));
SQLITE_BIND_FAIL(done, sqlite3_bind_int64(res, ++param, (time_t) context_data->last_time_s));
SQLITE_BIND_FAIL(done, sqlite3_bind_int(res, ++param, context_data->deleted));
SQLITE_BIND_FAIL(done, bind_text_null(res, ++param, context_data->family, 1));
param = 0;
rc_stored = execute_insert(res);
if (rc_stored != SQLITE_DONE)
error_report("Failed store context details for context %s, rc = %d", context_data->id, rc_stored);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return (rc_stored != SQLITE_DONE);
}
// Delete a context
#define CTX_DELETE_CONTEXT "DELETE FROM context WHERE host_id = @host_id AND id = @context"
int ctx_delete_context(nd_uuid_t *host_uuid, VERSIONED_CONTEXT_DATA *context_data)
{
int rc_stored = 1;
sqlite3_stmt *res = NULL;
if (unlikely(!context_data || !context_data->id))
return 0;
if (!PREPARE_STATEMENT(db_context_meta, CTX_DELETE_CONTEXT, &res))
return 1;
int param = 0;
SQLITE_BIND_FAIL(done, sqlite3_bind_blob(res, ++param, host_uuid, sizeof(*host_uuid), SQLITE_STATIC));
SQLITE_BIND_FAIL(done, sqlite3_bind_text(res, ++param, context_data->id, -1, SQLITE_STATIC));
param = 0;
rc_stored = execute_insert(res);
if (rc_stored != SQLITE_DONE)
error_report("Failed to delete context %s, rc = %d", context_data->id, rc_stored);
done:
REPORT_BIND_FAIL(res, param);
SQLITE_FINALIZE(res);
return (rc_stored != SQLITE_DONE);
}
int sql_context_cache_stats(int op)
{
int count, dummy;
if (unlikely(!db_context_meta))
return 0;
sqlite3_db_status(db_context_meta, op, &count, &dummy, 0);
return count;
}
uint64_t sqlite_get_context_space(void)
{
return sqlite_get_db_space(db_context_meta);
}
//
// TESTING FUNCTIONS
//
static void dict_ctx_get_context_list_cb(VERSIONED_CONTEXT_DATA *context_data, void *data)
{
(void)data;
netdata_log_info(" Context id = %s "
"version = %"PRIu64" "
"title = %s "
"chart_type = %s "
"units = %s "
"priority = %"PRIu64" "
"first time = %"PRIu64" "
"last time = %"PRIu64" "
"deleted = %d "
"family = %s",
context_data->id,
context_data->version,
context_data->title,
context_data->chart_type,
context_data->units,
context_data->priority,
context_data->first_time_s,
context_data->last_time_s,
context_data->deleted,
context_data->family);
}
int ctx_unittest(void)
{
nd_uuid_t host_uuid;
uuid_generate(host_uuid);
if (sqlite_library_init())
return 1;
int rc = sql_init_context_database(1);
if (rc != SQLITE_OK)
return 1;
// Store a context
VERSIONED_CONTEXT_DATA context_data;
context_data.id = strdupz("cpu.cpu");
context_data.title = strdupz("TestContextTitle");
context_data.units= strdupz("TestContextUnits");
context_data.chart_type = strdupz("TestContextChartType");
context_data.family = strdupz("TestContextFamily");
context_data.priority = 50000;
context_data.deleted = 0;
context_data.first_time_s = 1657781000;
context_data.last_time_s = 1657781100;
context_data.version = now_realtime_usec();
if (likely(!ctx_store_context(&host_uuid, &context_data)))
netdata_log_info("Entry %s inserted", context_data.id);
else
netdata_log_info("Entry %s not inserted", context_data.id);
if (likely(!ctx_store_context(&host_uuid, &context_data)))
netdata_log_info("Entry %s inserted", context_data.id);
else
netdata_log_info("Entry %s not inserted", context_data.id);
// This will change end time
context_data.first_time_s = 1657781000;
context_data.last_time_s = 1657782001;
if (likely(!ctx_update_context(&host_uuid, &context_data)))
netdata_log_info("Entry %s updated", context_data.id);
else
netdata_log_info("Entry %s not updated", context_data.id);
netdata_log_info("List context start after insert");
ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
netdata_log_info("List context end after insert");
// This will change start time
context_data.first_time_s = 1657782000;
context_data.last_time_s = 1657782001;
if (likely(!ctx_update_context(&host_uuid, &context_data)))
netdata_log_info("Entry %s updated", context_data.id);
else
netdata_log_info("Entry %s not updated", context_data.id);
// This will list one entry
netdata_log_info("List context start after insert");
ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
netdata_log_info("List context end after insert");
netdata_log_info("List context start after insert");
ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
netdata_log_info("List context end after insert");
// This will delete the entry
if (likely(!ctx_delete_context(&host_uuid, &context_data)))
netdata_log_info("Entry %s deleted", context_data.id);
else
netdata_log_info("Entry %s not deleted", context_data.id);
freez((void *)context_data.id);
freez((void *)context_data.title);
freez((void *)context_data.chart_type);
freez((void *)context_data.family);
freez((void *)context_data.units);
// The list should be empty
netdata_log_info("List context start after delete");
ctx_get_context_list(&host_uuid, dict_ctx_get_context_list_cb, NULL);
netdata_log_info("List context end after delete");
sql_close_database(db_context_meta, "CONTEXT");
sqlite_library_shutdown();
return 0;
}
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