org.ossmeter.factoid.cocomo.CocomoFactoid.java Source code

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Here is the source code for org.ossmeter.factoid.cocomo.CocomoFactoid.java

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/*******************************************************************************
 * Copyright (c) 2014 OSSMETER Partners.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    James Williams - Implementation.
 *******************************************************************************/
package org.ossmeter.factoid.cocomo;

import java.util.List;
import java.util.Random;

import org.ossmeter.platform.AbstractFactoidMetricProvider;
import org.ossmeter.platform.delta.ProjectDelta;
import org.ossmeter.platform.factoids.Factoid;
import org.ossmeter.platform.factoids.FactoidCategory;
import org.ossmeter.platform.factoids.Factoids;
import org.ossmeter.platform.factoids.StarRating;
import org.ossmeter.repository.model.Project;

import com.mongodb.DB;
import com.mongodb.Mongo;

public class CocomoFactoid extends AbstractFactoidMetricProvider {

    @Override
    public String getShortIdentifier() {
        return "cocomo";
    }

    @Override
    public String getIdentifier() {
        return getShortIdentifier();
    }

    @Override
    public String getFriendlyName() {
        return "Cocomo"; // This method will be removed in a later version.
    }

    @Override
    public String getSummaryInformation() {
        return "COCOMO is crazy."; // This method will be removed in a later version.
    }

    @Override
    public boolean appliesTo(Project project) {
        return project.getVcsRepositories().size() > 0;
    }

    @Override
    public List<String> getIdentifiersOfUses() {
        return null;
    }

    @Override
    public void measureImpl(Project project, ProjectDelta delta, Factoid factoid) {
        // Assumes ALL projects are "semi-detached"
        double a = 3.0;
        double b = 1.12;
        double c = 2.5;
        double d = 0.35;

        int kloc = new Random().nextInt(50000000); // FIXME get from metric
        kloc /= 1000;

        double effortApplied = a * Math.pow(kloc, b); // person months
        double devTime = c * Math.pow(effortApplied, d); // months
        double peopleRequired = effortApplied / devTime; // count

        int years = (int) effortApplied / 12;

        factoid.setFactoid("Took an estimated " + years + " years (COCOMO model).");
        factoid.setCategory(FactoidCategory.CODE);

        if (years < 5) {
            factoid.setStars(StarRating.ONE);
        } else if (years < 10) {
            factoid.setStars(StarRating.TWO);
        } else if (years < 50) {
            factoid.setStars(StarRating.THREE);
        } else {
            factoid.setStars(StarRating.FOUR);
        }
    }

    public static void main(String[] args) throws Exception {
        Mongo mongo = new Mongo();
        DB db = mongo.getDB("Xtext");

        CocomoFactoid f = new CocomoFactoid();
        f.adapt(db);
        f.measure(null, null, new Factoids(db));

        System.out.println(FactoidCategory.valueOf("asdasdasdd"));
    }

}