eu.crisis_economics.abm.markets.clearing.heterogeneous.PartitionedResponseFunction.java Source code

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Here is the source code for eu.crisis_economics.abm.markets.clearing.heterogeneous.PartitionedResponseFunction.java

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/*
 * This file is part of CRISIS, an economics simulator.
 * 
 * Copyright (C) 2015 John Kieran Phillips
 *
 * CRISIS 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.
 *
 * CRISIS 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 CRISIS.  If not, see <http://www.gnu.org/licenses/>.
 */
package eu.crisis_economics.abm.markets.clearing.heterogeneous;

import org.apache.commons.math3.exception.NullArgumentException;

/**
  * @author phillips
  */
public final class PartitionedResponseFunction implements MarketResponseFunction {

    private MarketResponseFunction partitionFunction;
    private BoundedUnivariateFunction univariateTradeDemand;

    public PartitionedResponseFunction(final MarketResponseFunction partitionFunction,
            final BoundedUnivariateFunction univariateTradeDemand) {
        if (partitionFunction == null || univariateTradeDemand == null)
            throw new NullArgumentException();
        this.partitionFunction = partitionFunction;
        this.univariateTradeDemand = univariateTradeDemand;
    }

    @Override
    public double[] getValue(final int[] queries, final TradeOpportunity[] arguments) {
        final double[] partitionResponse = partitionFunction.getValue(queries, arguments);
        final double[] result = new double[queries.length];
        for (int i = 0; i < result.length; ++i)
            result[i] = partitionResponse[i] * univariateTradeDemand.value(arguments[queries[i]].getRate());
        return result;
    }

    @Override
    public double getMinimumInDomain() {
        return Math.max(partitionFunction.getMinimumInDomain(), univariateTradeDemand.getMinimumInDomain());
    }

    @Override
    public double getMaximumInDomain() {
        return Math.min(partitionFunction.getMaximumInDomain(), univariateTradeDemand.getMaximumInDomain());
    }

    /**
      * Returns a brief description of this object. The exact details of the
      * string are subject to change, and should not be regarded as fixed.
      */
    @Override
    public String toString() {
        return "PartitionedResponseFunction.";
    }
}