Examples with Closure org.knime.base.node.preproc.autobinner.pmml.PMMLInterval.Closure used on opensource projects

Example 1 with Closure

use of org.knime.base.node.preproc.autobinner.pmml.PMMLInterval.Closure in project knime-core by knime.

the class DBAutoBinner method translate.

/**
 * This method translates a {@link PMMLPreprocDiscretize} object into {@link PMMLPortObject}.
 *
 * @param pmmlDiscretize {@link PMMLPreprocDiscretize} object
 * @param dataTableSpec {@link DataTableSpec} if incoming {@link BufferedDataTable}
 * @return a {@link PMMLPortObject} containing required parameters for binning operation
 */
public static PMMLPortObject translate(final PMMLPreprocDiscretize pmmlDiscretize, final DataTableSpec dataTableSpec) {
    final Map<String, Bin[]> columnToBins = new HashMap<>();
    final Map<String, String> columnToAppend = new HashMap<>();
    List<String> replacedColumnNames = pmmlDiscretize.getConfiguration().getNames();
    for (String replacedColumnName : replacedColumnNames) {
        PMMLDiscretize discretize = pmmlDiscretize.getConfiguration().getDiscretize(replacedColumnName);
        List<PMMLDiscretizeBin> bins = discretize.getBins();
        String originalColumnName = discretize.getField();
        if (replacedColumnName.equals(originalColumnName)) {
            // wenn replaced, dann nicht anhängen
            columnToAppend.put(originalColumnName, null);
        } else {
            // nicht replaced -> anhängen
            columnToAppend.put(originalColumnName, replacedColumnName);
        }
        NumericBin[] numericBin = new NumericBin[bins.size()];
        int counter = 0;
        for (PMMLDiscretizeBin bin : bins) {
            String binName = bin.getBinValue();
            List<PMMLInterval> intervals = bin.getIntervals();
            boolean leftOpen = false;
            boolean rightOpen = false;
            double leftMargin = 0;
            double rightMargin = 0;
            // always returns only one interval
            for (PMMLInterval interval : intervals) {
                Closure closure = interval.getClosure();
                switch(closure) {
                    case openClosed:
                        leftOpen = true;
                        rightOpen = false;
                        break;
                    case openOpen:
                        leftOpen = true;
                        rightOpen = true;
                        break;
                    case closedOpen:
                        leftOpen = false;
                        rightOpen = true;
                    case closedClosed:
                        leftOpen = false;
                        rightOpen = false;
                        break;
                    default:
                        leftOpen = true;
                        rightOpen = false;
                        break;
                }
                leftMargin = interval.getLeftMargin();
                rightMargin = interval.getRightMargin();
            }
            numericBin[counter] = new NumericBin(binName, leftOpen, leftMargin, rightOpen, rightMargin);
            counter++;
        }
        columnToBins.put(originalColumnName, numericBin);
    }
    // ColumnRearranger createColReg = createColReg(dataTableSpec, columnToBins, columnToAppended);
    DataTableSpec newDataTableSpec = createNewDataTableSpec(dataTableSpec, columnToAppend);
    PMMLPortObjectSpecCreator pmmlSpecCreator = new PMMLPortObjectSpecCreator(newDataTableSpec);
    PMMLPortObject pmmlPortObject = new PMMLPortObject(pmmlSpecCreator.createSpec(), null, newDataTableSpec);
    PMMLBinningTranslator trans = new PMMLBinningTranslator(columnToBins, columnToAppend, new DerivedFieldMapper(pmmlPortObject));
    TransformationDictionary exportToTransDict = trans.exportToTransDict();
    pmmlPortObject.addGlobalTransformations(exportToTransDict);
    return pmmlPortObject;
}