/**
* Takes a FlumeConfigData and attempts load/config the node.
*
* <p>True if successful, false if failed
*/
public synchronized boolean checkConfig(FlumeConfigData data) {
if (data == null) {
return false;
}
// check if config is too old or the same as current
if (lastGoodCfg != null) {
if (data.getSourceVersion() <= lastGoodCfg.getSourceVersion()) {
if (data.getSourceVersion() < lastGoodCfg.getSourceVersion()) {
// retrieved configuration is older!?
LOG.warn("reject because config older than the current. ");
return false;
}
LOG.debug(
"do nothing: retrieved config ("
+ new Date(data.getSourceVersion())
+ ") same as current ("
+ new Date(lastGoodCfg.getSourceVersion())
+ "). ");
return false;
}
}
try {
loadConfig(data);
} catch (Exception e) {
// Catch the exception to prevent backoff
LOG.warn("Configuration " + data + " failed to load!", e);
return false;
}
return true;
}
public long getConfigVersion() {
if (lastGoodCfg == null) return 0;
return lastGoodCfg.getTimestamp();
}