/*
* #%L
* org.gitools.matrix
* %%
* Copyright (C) 2013 - 2016 Universitat Pompeu Fabra - Biomedical Genomics group
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
package org.gitools.matrix.transform;
import org.gitools.api.matrix.ConfigurableTransformFunction;
import org.gitools.api.matrix.IMatrixPosition;
import org.gitools.matrix.transform.parameters.DoubleParameter;
public class MultiplyByConstantFunction extends ConfigurableTransformFunction {
public static final String CONSTANT = "Constant";
DoubleParameter doubleParameter;
public MultiplyByConstantFunction() {
super("Multiply", "Multiplies the value by the defined constant");
}
@Override
public Double apply(Double value, IMatrixPosition position) {
if (value != null) {
return value * doubleParameter.getParameterValue();
}
return null;
}
@Override
public MultiplyByConstantFunction createNew() {
return new MultiplyByConstantFunction();
}
@Override
protected void createDefaultParameters() {
doubleParameter = new DoubleParameter();
doubleParameter.setDescription("Define a constant which will be summed to all values");
doubleParameter.setParameterValue(2.0);
addParameter(CONSTANT, doubleParameter);
}
@Override
public String getName() {
return name + " by " + doubleParameter.getParameterValue();
}
}