cu.uci.uengine.utils.RegexUtils.java Source code

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Here is the source code for cu.uci.uengine.utils.RegexUtils.java

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package cu.uci.uengine.utils;

import cu.uci.uengine.exceptions.InvalidDataSetNameException;
import java.io.File;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.io.FilenameUtils;

/**
 *
 * @author lan
 */
public class RegexUtils {

    public static int getDataSetNumber(File file) throws InvalidDataSetNameException {
        String baseName = FilenameUtils.getBaseName(file.getName());

        Pattern p = Pattern.compile("\\d+$");//Digits at string end.

        Matcher m = p.matcher(baseName);
        if (!m.find()) {
            throw new InvalidDataSetNameException(String.format("DataSet %s is not a valid name.", baseName));
        }

        int dataSetNumber = Integer.parseInt(m.group());

        return dataSetNumber;
    }
}