@InterfaceAudience.Private
@Override
protected void flush() throws IOException {
for (MetricsContext ctxt : subctxt) {
try {
((AbstractMetricsContext) ctxt).flush();
} catch (IOException e) {
LOG.warn("flush failed: " + ctxt.getContextName(), e);
}
}
}
@InterfaceAudience.Private
@Override
protected void emitRecord(String contextName, String recordName, OutputRecord outRec)
throws IOException {
for (MetricsContext ctxt : subctxt) {
try {
((AbstractMetricsContext) ctxt).emitRecord(contextName, recordName, outRec);
if (contextName == null || recordName == null || outRec == null) {
throw new IOException(contextName + ":" + recordName + ":" + outRec);
}
} catch (IOException e) {
LOG.warn("emitRecord failed: " + ctxt.getContextName(), e);
}
}
}
@Override
@InterfaceAudience.Private
public void init(String contextName, ContextFactory factory) {
super.init(contextName, factory);
int nKids;
try {
String sKids = getAttribute(ARITY_LABEL);
nKids = Integer.parseInt(sKids);
} catch (Exception e) {
LOG.error(
"Unable to initialize composite metric " + contextName + ": could not init arity", e);
return;
}
for (int i = 0; i < nKids; ++i) {
MetricsContext ctxt =
MetricsUtil.getContext(String.format(SUB_FMT, contextName, i), contextName);
if (null != ctxt) {
subctxt.add(ctxt);
}
}
}
@Override
@InterfaceAudience.Private
public void init(String contextName, ContextFactory factory) {
super.init(contextName, factory);
parseAndSetPeriod(PERIOD_PROPERTY);
}