Examples with ProjectionFactory storm.trident.tuple.TridentTupleView.ProjectionFactory used on opensource projects

Example 1 with ProjectionFactory

use of storm.trident.tuple.TridentTupleView.ProjectionFactory in project storm by nathanmarz.

the class AggregateProcessor method prepare.

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

Example 2 with ProjectionFactory

use of storm.trident.tuple.TridentTupleView.ProjectionFactory in project storm by nathanmarz.

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 3 with ProjectionFactory

use of storm.trident.tuple.TridentTupleView.ProjectionFactory in project storm by nathanmarz.

the class MultiReducerProcessor method prepare.

@Override
public void prepare(Map conf, TopologyContext context, TridentContext tridentContext) {
    List<Factory> parents = tridentContext.getParentTupleFactories();
    _context = tridentContext;
    _streamToIndex = new HashMap<String, Integer>();
    List<String> parentStreams = tridentContext.getParentStreams();
    for (int i = 0; i < parentStreams.size(); i++) {
        _streamToIndex.put(parentStreams.get(i), i);
    }
    _projectionFactories = new ProjectionFactory[_projectFields.size()];
    for (int i = 0; i < _projectFields.size(); i++) {
        _projectionFactories[i] = new ProjectionFactory(parents.get(i), _projectFields.get(i));
    }
    _collector = new FreshCollector(tridentContext);
    _reducer.prepare(conf, new TridentMultiReducerContext((List) Arrays.asList(_projectionFactories)));
}

Example 4 with ProjectionFactory

use of storm.trident.tuple.TridentTupleView.ProjectionFactory in project storm by nathanmarz.

the class PartitionPersistProcessor method prepare.

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

Example 5 with ProjectionFactory

use of storm.trident.tuple.TridentTupleView.ProjectionFactory in project jstorm by alibaba.

the class MultiReducerProcessor method prepare.

@Override
public void prepare(Map conf, TopologyContext context, TridentContext tridentContext) {
    List<Factory> parents = tridentContext.getParentTupleFactories();
    _context = tridentContext;
    _streamToIndex = new HashMap<String, Integer>();
    List<String> parentStreams = tridentContext.getParentStreams();
    for (int i = 0; i < parentStreams.size(); i++) {
        _streamToIndex.put(parentStreams.get(i), i);
    }
    _projectionFactories = new ProjectionFactory[_projectFields.size()];
    for (int i = 0; i < _projectFields.size(); i++) {
        _projectionFactories[i] = new ProjectionFactory(parents.get(i), _projectFields.get(i));
    }
    _collector = new FreshCollector(tridentContext);
    _reducer.prepare(conf, new TridentMultiReducerContext((List) Arrays.asList(_projectionFactories)));
}