Examples with TridentMultiReducerContext storm.trident.operation.TridentMultiReducerContext used on opensource projects

Example 1 with TridentMultiReducerContext

use of storm.trident.operation.TridentMultiReducerContext 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 2 with TridentMultiReducerContext

use of storm.trident.operation.TridentMultiReducerContext in project storm by nathanmarz.

the class GroupedMultiReducerExecutor method prepare.

@Override
public void prepare(Map conf, TridentMultiReducerContext context) {
    for (int i = 0; i < _groupFields.size(); i++) {
        _groupFactories.add(context.makeProjectionFactory(i, _groupFields.get(i)));
        _inputFactories.add(context.makeProjectionFactory(i, _inputFields.get(i)));
    }
    _reducer.prepare(conf, new TridentMultiReducerContext((List) _inputFactories));
}

Example 3 with TridentMultiReducerContext

use of storm.trident.operation.TridentMultiReducerContext 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)));
}

Example 4 with TridentMultiReducerContext

use of storm.trident.operation.TridentMultiReducerContext in project jstorm by alibaba.

the class GroupedMultiReducerExecutor method prepare.

@Override
public void prepare(Map conf, TridentMultiReducerContext context) {
    for (int i = 0; i < _groupFields.size(); i++) {
        _groupFactories.add(context.makeProjectionFactory(i, _groupFields.get(i)));
        _inputFactories.add(context.makeProjectionFactory(i, _inputFields.get(i)));
    }
    _reducer.prepare(conf, new TridentMultiReducerContext((List) _inputFactories));
}