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    • org.datacleaner.components.fillpattern.FillPatternsBuilder Maven / Gradle / Ivy

    The newest version!
    package org.datacleaner.components.fillpattern;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.datacleaner.api.InputRow;
import org.datacleaner.storage.RowAnnotation;
import org.datacleaner.storage.RowAnnotationFactory;

public class FillPatternsBuilder {

    private final Map, RowAnnotation> _observations;
    private final RowAnnotationFactory _rowAnnotationFactory;

    public FillPatternsBuilder(RowAnnotationFactory rowAnnotationFactory) {
        _rowAnnotationFactory = rowAnnotationFactory;
        _observations = new HashMap, RowAnnotation>();
    }

    public void addObservation(InputRow row, List inspectionOutcomes) {
        RowAnnotation annotation = _observations.get(inspectionOutcomes);
        if (annotation == null) {
            synchronized (this) {
                annotation = _observations.get(inspectionOutcomes);
                if (annotation == null) {
                    annotation = _rowAnnotationFactory.createAnnotation();
                    _observations.put(inspectionOutcomes, annotation);
                }
            }
        }
        _rowAnnotationFactory.annotate(row, annotation);
    }

    public FillPatternGroup build(String groupName) {
        final List sortedPatterns = _observations.entrySet().stream().map(e -> new FillPattern(e.getKey(),
                e.getValue())).sorted().collect(Collectors.toList());
        return new FillPatternGroup(groupName, sortedPatterns);
    }
}
    
    
    
    

    




    
    
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