/**
 * Palmetto - Palmetto is a quality measure tool for topics.
 * Copyright © 2014 Data Science Group (DICE) (michael.roeder@uni-paderborn.de)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.aksw.palmetto.prob;

import org.aksw.palmetto.data.CountedSubsets;
import org.aksw.palmetto.data.SegmentationDefinition;
import org.aksw.palmetto.data.SubsetProbabilities;

public abstract class AbstractProbabilitySupplier implements
        ProbabilityEstimator {

    public static final int DEFAULT_MIN_FREQUENCY = 10;

    protected FrequencyDeterminer freqDeterminer;
    protected int minFrequency = DEFAULT_MIN_FREQUENCY;

    protected AbstractProbabilitySupplier(FrequencyDeterminer freqDeterminer) {
        this.freqDeterminer = freqDeterminer;
    }

    public SubsetProbabilities[] getProbabilities(String wordsets[][],
            SegmentationDefinition definitions[]) {
        CountedSubsets subsets[] = freqDeterminer.determineCounts(wordsets,
                definitions);
        SubsetProbabilities probabilities[] = new SubsetProbabilities[subsets.length];
        for (int i = 0; i < subsets.length; i++) {
            probabilities[i] = getProbabilities(subsets[i]);
        }
        return probabilities;
    }

    protected abstract SubsetProbabilities getProbabilities(
            CountedSubsets countedSubsets);

    public void setMinFrequency(int minFrequency) {
        this.minFrequency = minFrequency;
    }

    public int getMinFrequency() {
        return minFrequency;
    }

    public FrequencyDeterminer getFrequencyDeterminer() {
        return freqDeterminer;
    }

    public void setFrequencyDeterminer(FrequencyDeterminer freqDeterminer) {
        this.freqDeterminer = freqDeterminer;
    }
}
