public void initialize(OperatorContext context) throws Exception {
super.initialize(context);
String propFile = getPropertiesFile();
if (propFile != null) {
finalProperties.load(new FileReader(propFile));
}
finalProperties.putAll(properties);
if (finalProperties == null || finalProperties.isEmpty())
throw new Exception("Kafka connection properties must be specified.");
}
/**
* Initialize this operator. Called once before any tuples are processed.
*
* @param context OperatorContext for this operator.
* @throws Exception Operator failure, will cause the enclosing PE to terminate.
*/
@Override
public synchronized void initialize(OperatorContext context) throws Exception {
// Must call super.initialize(context) to correctly setup an operator.
super.initialize(context);
Logger.getLogger(this.getClass())
.trace(
"Operator "
+ context.getName()
+ " initializing in PE: "
+ context.getPE().getPEId()
+ " in Job: "
+ context.getPE().getJobId());
// TODO:
// If needed, insert code to establish connections or resources to communicate an external
// system or data store.
// The configuration information for this may come from parameters supplied to the operator
// invocation,
// or external configuration files or a combination of the two.
}