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metadata_writer_sqlite_monitor.c
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metadata_writer_sqlite_monitor.c
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/* Copyright (c) 2015, Celerway, Kristian Evensen <kristrev@celerway.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
#include <string.h>
#include <sqlite3.h>
#include <sys/time.h>
#include "metadata_exporter.h"
#include "metadata_writer_sqlite_monitor.h"
#include "metadata_writer_sqlite_helpers.h"
#include "metadata_writer_json_helpers.h"
#include "metadata_exporter_log.h"
static uint8_t md_sqlite_monitor_dump_db_sql(struct md_writer_sqlite *mws, FILE *output)
{
sqlite3_reset(mws->dump_monitor);
if (md_sqlite_helpers_dump_write(mws->dump_monitor, output))
return RETVAL_FAILURE;
else
return RETVAL_SUCCESS;
}
static uint8_t md_sqlite_monitor_dump_json(struct md_writer_sqlite *mws, FILE *output)
{
const char *json_str;
sqlite3_reset(mws->dump_monitor);
json_object *jarray = json_object_new_array();
if (md_json_helpers_dump_write(mws->dump_monitor, jarray)) {
json_object_put(jarray);
return RETVAL_FAILURE;
}
json_str = json_object_to_json_string_ext(jarray, JSON_C_TO_STRING_PLAIN);
fprintf(output, "%s", json_str);
json_object_put(jarray);
return RETVAL_SUCCESS;
}
static uint8_t md_sqlite_monitor_delete_db(struct md_writer_sqlite *mws)
{
int32_t retval = 0;
sqlite3_reset(mws->delete_monitor);
retval = sqlite3_step(mws->delete_monitor);
if (retval == SQLITE_DONE) {
return RETVAL_SUCCESS;
} else {
META_PRINT_SYSLOG(mws->parent, LOG_ERR, "Failed to delete monitor table\n");
return RETVAL_FAILURE;
}
}
uint8_t md_sqlite_monitor_copy_db(struct md_writer_sqlite *mws)
{
dump_db_cb dump_cb = NULL;
if (mws->output_format == FORMAT_SQL) {
dump_cb = md_sqlite_monitor_dump_db_sql;
} else {
dump_cb = md_sqlite_monitor_dump_json;
}
uint8_t retval = md_writer_helpers_copy_db(mws->monitor_prefix,
mws->monitor_prefix_len, dump_cb, mws,
md_sqlite_monitor_delete_db);
if (retval == RETVAL_SUCCESS)
mws->num_munin_events = 0;
return retval;
}
uint8_t md_sqlite_handle_munin_event(struct md_writer_sqlite *mws,
struct md_munin_event *mme)
{
json_object *value;
int64_t boottime = 0;
json_object *session_obj;
if (!json_object_object_get_ex(mme->json_blob, "session", &session_obj)) {
META_PRINT_SYSLOG(mws->parent, LOG_ERR, "Failed to read data from session module (Munin)\n");
return RETVAL_FAILURE;
}
if (!json_object_object_get_ex(session_obj, "start", &value))
return RETVAL_FAILURE;
if ((boottime = json_object_get_int64(value)) < 1400000000 ) {
META_PRINT_SYSLOG(mws->parent, LOG_ERR, "Failed to read valid start time from session module (Munin): %" PRId64 "\n", boottime);
return RETVAL_FAILURE;
}
sqlite3_stmt *stmt = mws->insert_monitor;
sqlite3_clear_bindings(stmt);
sqlite3_reset(stmt);
if (sqlite3_bind_int(stmt, 1, mws->node_id) ||
sqlite3_bind_int(stmt, 2, mme->tstamp) ||
sqlite3_bind_int(stmt, 3, mme->sequence) ||
sqlite3_bind_int64(stmt, 4, boottime) ){
META_PRINT_SYSLOG(mws->parent, LOG_ERR, "Failed to bind values to INSERT query (Monitor)\n");
return RETVAL_FAILURE;
}
if (sqlite3_step(stmt) != SQLITE_DONE)
return RETVAL_FAILURE;
else
return RETVAL_SUCCESS;
}