void addValue(double value) throws IOException {
try {
// request RRD database reference from the pool
final RrdDb rrdDb = rrdPool.requestRrdDb(rrdFileName);
synchronized (rrdDb) {
try {
// create sample with the current timestamp
final Sample sample = rrdDb.createSample();
// test pour éviter l'erreur suivante au redéploiement par exemple:
// org.jrobin.core.RrdException:
// Bad sample timestamp x. Last update time was x, at least one second step is required
if (sample.getTime() > rrdDb.getLastUpdateTime()) {
// set value for load datasource
sample.setValue(getDataSourceName(), value);
// update database
sample.update();
}
} finally {
// release RRD database reference
rrdPool.release(rrdDb);
}
}
} catch (final FileNotFoundException e) {
if (e.getMessage() != null && e.getMessage().endsWith("[non existent]")) {
// cf issue 255
LOG.debug(
"A JRobin file was deleted and created again: " + new File(rrdFileName).getPath());
resetFile();
addValue(value);
}
} catch (final RrdException e) {
if (e.getMessage() != null && e.getMessage().startsWith("Invalid file header")) {
// le fichier RRD a été corrompu, par exemple en tuant le process java au milieu
// d'un write, donc on efface le fichier corrompu et on le recrée pour corriger
// le problème
LOG.debug(
"A JRobin file was found corrupted and was reset: " + new File(rrdFileName).getPath());
resetFile();
addValue(value);
}
throw createIOException(e);
}
}
