reflex.module.ReflexGamma.java Source code

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Here is the source code for reflex.module.ReflexGamma.java

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/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2011-2016 Incapture Technologies LLC
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package reflex.module;

import java.util.List;

import org.apache.commons.math3.special.Gamma;

import reflex.IReflexHandler;
import reflex.ReflexException;
import reflex.debug.IReflexDebugger;
import reflex.importer.Module;
import reflex.value.ReflexValue;
import reflex.value.internal.ReflexVoidValue;

public class ReflexGamma implements Module {

    @Override
    public ReflexValue keyholeCall(String name, List<ReflexValue> parameters) {
        return new ReflexVoidValue();
    }

    @Override
    public boolean handlesKeyhole() {
        return false;
    }

    @Override
    public boolean canUseReflection() {
        return true;
    }

    @Override
    public void configure(List<ReflexValue> parameters) {
    }

    @Override
    public void setReflexHandler(IReflexHandler handler) {
    }

    @Override
    public void setReflexDebugger(IReflexDebugger debugger) {

    }

    public ReflexValue gamma(List<ReflexValue> params) {
        if (params.size() == 0) {
            return new ReflexValue(Gamma.GAMMA);
        } else {
            throw new ReflexException(-1, "Where is gamma?");
        }
    }

    public ReflexValue digamma(List<ReflexValue> params) {
        if (params.size() != 1) {
            throw new ReflexException(-1, "digamma needs one number parameter");
        }
        if (!params.get(0).isNumber()) {
            throw new ReflexException(-1, "digamma needs one number parameter");
        }
        double value = params.get(0).asDouble();
        return new ReflexValue(Gamma.digamma(value));
    }

    public ReflexValue loggamma(List<ReflexValue> params) {
        if (params.size() != 1) {
            throw new ReflexException(-1, "digamma needs one number parameter");
        }
        if (!params.get(0).isNumber()) {
            throw new ReflexException(-1, "digamma needs one number parameter");
        }
        double value = params.get(0).asDouble();
        return new ReflexValue(Gamma.logGamma(value));
    }

    public ReflexValue trigamma(List<ReflexValue> params) {
        if (params.size() != 1) {
            throw new ReflexException(-1, "trigamma needs one number parameter");
        }
        if (!params.get(0).isNumber()) {
            throw new ReflexException(-1, "trigamma needs one number parameter");
        }
        double value = params.get(0).asDouble();
        return new ReflexValue(Gamma.trigamma(value));
    }

}