Examples with TridentOperationContext org.apache.storm.trident.operation.TridentOperationContext used on opensource projects

Example 6 with TridentOperationContext

use of org.apache.storm.trident.operation.TridentOperationContext in project storm by apache.

the class EachProcessor method prepare.

@Override
public void prepare(Map conf, TopologyContext context, TridentContext tridentContext) {
    List<Factory> parents = tridentContext.getParentTupleFactories();
    if (parents.size() != 1) {
        throw new RuntimeException("Each operation can only have one parent");
    }
    _context = tridentContext;
    _collector = new AppendCollector(tridentContext);
    _projection = new ProjectionFactory(parents.get(0), _inputFields);
    _function.prepare(conf, new TridentOperationContext(context, _projection));
}

Example 7 with TridentOperationContext

use of org.apache.storm.trident.operation.TridentOperationContext in project storm by apache.

the class MapProcessor method prepare.

@Override
public void prepare(Map conf, TopologyContext context, TridentContext tridentContext) {
    List<TridentTuple.Factory> parents = tridentContext.getParentTupleFactories();
    if (parents.size() != 1) {
        throw new RuntimeException("Map operation can only have one parent");
    }
    _context = tridentContext;
    _collector = new FreshCollector(tridentContext);
    _projection = new TridentTupleView.ProjectionFactory(parents.get(0), _inputFields);
    _function.prepare(conf, new TridentOperationContext(context, _projection));
}