/** Stop the session and record its complete. Called by coodinator when request is complete. */
public void stopSession() {
TraceState state = this.state.get();
if (state == null) // inline isTracing to avoid implicit two calls to state.get()
{
logger.debug("request complete");
} else {
final int elapsed = state.elapsed();
final ByteBuffer sessionIdBytes = state.sessionIdBytes;
StageManager.getStage(Stage.TRACING)
.execute(
new WrappedRunnable() {
public void runMayThrow() throws Exception {
CFMetaData cfMeta = CFMetaData.TraceSessionsCf;
ColumnFamily cf = ColumnFamily.create(cfMeta);
addColumn(cf, buildName(cfMeta, bytes("duration")), elapsed);
RowMutation mutation = new RowMutation(TRACE_KS, sessionIdBytes);
mutation.add(cf);
StorageProxy.mutate(Arrays.asList(mutation), ConsistencyLevel.ANY);
}
});
sessions.remove(state.sessionId);
this.state.set(null);
}
}
public static void trace(String format, Object[] args) {
if (Tracing.instance() == null) // instance might not be built at the time this is called
return;
final TraceState state = Tracing.instance().get();
if (state == null) // inline isTracing to avoid implicit two calls to state.get()
return;
state.trace(format, args);
}