org.campagnelab.dl.somatic.mappers.GenomicContextMapper Maven / Gradle / Ivy

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package org.campagnelab.dl.somatic.mappers;

import org.campagnelab.dl.framework.mappers.ConcatFeatureMapper;
import org.campagnelab.dl.framework.mappers.FeatureMapper;
import org.campagnelab.dl.framework.mappers.FeatureNameMapper;
import org.campagnelab.dl.framework.mappers.NoMaskFeatureMapper;
import org.campagnelab.dl.varanalysis.protobuf.BaseInformationRecords;
import org.campagnelab.dl.framework.mappers.OneHotBaseFeatureMapper;
import org.nd4j.linalg.api.ndarray.INDArray;

import java.util.Properties;
import java.util.function.Function;

/**
 * Maps the full genomic context using multiple onehotfeaturemapper
 * Created by rct66 on 10/25/16.
 */


public class GenomicContextMapper extends NoMaskFeatureMapper
        implements FeatureMapper, FeatureNameMapper {
    private ConcatFeatureMapper delegate;

    public GenomicContextMapper(Properties sbiProperties) {

        this((int) Float.parseFloat(sbiProperties.getProperty("stats.genomicContextSize.min", "0.0")));
        if (sbiProperties.getProperty("stats.genomicContextSize.min") == null) {
            throw new RuntimeException("Unable to obtain stats.genomicContextSize.min from properties.");
        }
    }

    public GenomicContextMapper(int contextSize) {
        OneHotBaseFeatureMapper[] refContext = new OneHotBaseFeatureMapper[contextSize];
        for (int i = 0; i < contextSize; i++) {
            refContext[i] = new OneHotBaseFeatureMapper<>(i,
                    BaseInformationRecords.BaseInformationOrBuilder::getGenomicSequenceContext);
        }
        delegate = new ConcatFeatureMapper<>(refContext);
    }

    public GenomicContextMapper(int contextSize, Function function) {
        OneHotBaseFeatureMapper[] refContext = new OneHotBaseFeatureMapper[contextSize];
        for (int i = 0; i < contextSize; i++) {
            refContext[i] = new OneHotBaseFeatureMapper<>(i, function);
        }
        delegate = new ConcatFeatureMapper<>(refContext);
    }

    @Override
    public int numberOfFeatures() {
        return delegate.numberOfFeatures();

    }

    @Override
    public void prepareToNormalize(BaseInformationRecords.BaseInformationOrBuilder record, int indexOfRecord) {
        delegate.prepareToNormalize(record, indexOfRecord);
    }

    int[] indices = new int[]{0, 0};

    @Override
    public void mapFeatures(BaseInformationRecords.BaseInformationOrBuilder record, INDArray inputs, int indexOfRecord) {
        delegate.mapFeatures(record, inputs, indexOfRecord);
    }

    @Override
    public float produceFeature(BaseInformationRecords.BaseInformationOrBuilder record, int featureIndex) {
        return delegate.produceFeature(record, featureIndex);
    }

    @Override
    public String getFeatureName(int featureIndex) {
        return "GenomicContextMapper"+featureIndex;
    }
}