adams.data.id.AbstractInstanceIDGeneratorTestCase.java Source code

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Here is the source code for adams.data.id.AbstractInstanceIDGeneratorTestCase.java

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/*
 *   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/>.
 */

/**
 * AbstractIDGeneratorTestCase.java
 * Copyright (C) 2010 University of Waikato, Hamilton, New Zealand
 */
package adams.data.id;

import weka.core.Instances;
import weka.core.converters.ConverterUtils.DataSource;
import adams.data.container.DataContainer;
import adams.data.id.AbstractIDGeneratorTestCase;
import adams.data.id.IDHandler;
import adams.data.instance.Instance;
import adams.test.TmpFile;

/**
 * Ancestor for ID generator test cases.
 *
 * @author  fracpete (fracpete at waikato dot ac dot nz)
 * @version $Revision$
 * @param <D> the type of data to data
 */
public abstract class AbstractInstanceIDGeneratorTestCase<D extends DataContainer & IDHandler>
        extends AbstractIDGeneratorTestCase<D> {

    /**
     * Constructs the test case. Called by subclasses.
     *
     * @param name    the name of the test
     */
    public AbstractInstanceIDGeneratorTestCase(String name) {
        super(name);
    }

    /**
     * Loads the data to process.
     *
     * @param filename   the filename to load (without path)
     * @return      the data, null if it could not be loaded
     * @see      #getDataDirectory()
     */
    protected D[] load(String filename) {
        Instance[] result;
        Instances data;
        int i;

        result = null;

        m_TestHelper.copyResourceToTmp(filename);

        try {
            data = DataSource.read(new TmpFile(filename).getAbsolutePath());
            result = new Instance[data.numInstances()];
            for (i = 0; i < data.numInstances(); i++) {
                result[i] = new Instance();
                result[i].set(data.instance(i));
                result[i].setID(new TmpFile(filename).getName() + "-" + i);
            }
        } catch (Exception e) {
            e.printStackTrace();
            result = new Instance[0];
        }

        m_TestHelper.deleteFileFromTmp(filename);

        return (D[]) result;
    }
}