VersionHome.java

package org.jblooming.ontology;

import org.jblooming.utilities.NumberUtilities;

import java.util.Collection;

/**
 * @author pietro polsinelli ppolsinelli@twproject.com
 */
public class VersionHome {

  public static String VERSION_ROOT = "01";

  public static String nextVersion(String currentVersion) {

    String nextVersion = VERSION_ROOT;

    try {
      int current = (Integer.parseInt(currentVersion));
      nextVersion = increase(current, nextVersion);
    } catch (NumberFormatException e) {
      try {
        nextVersion =
                NumberUtilities.intToRoman(Integer.parseInt(increase(NumberUtilities.romanToInt(currentVersion),
                        (VERSION_ROOT.equals(nextVersion) ? "1" : NumberUtilities.romanToInt(nextVersion) + "")))) + "";
      } catch (NumberFormatException e1) {

        char c = currentVersion.toCharArray()[currentVersion.length() - 1];
        c = (char) (c + 1);
        if (c > nextVersion.toCharArray()[nextVersion.length() - 1])
          nextVersion = currentVersion.substring(0, currentVersion.length() - 1) + c;

      }
    }

    return nextVersion;
  }

  public static String nextVersion(Collection<String> versions) {

    String nextVersion = VERSION_ROOT;
    if (versions != null && versions.size() > 0)
      for (String version : versions) {
        try {
          int current = (Integer.parseInt(version));
          nextVersion = increase(current, nextVersion);
        } catch (NumberFormatException e) {
          try {
            nextVersion =
                    NumberUtilities.intToRoman(Integer.parseInt(increase(NumberUtilities.romanToInt(version),
                            (VERSION_ROOT.equals(nextVersion) ? "1" : NumberUtilities.romanToInt(nextVersion) + "")))) + "";
          } catch (NumberFormatException e1) {

            char c = version.toCharArray()[version.length() - 1];
            c = (char) (c + 1);
            if (c > nextVersion.toCharArray()[nextVersion.length() - 1])
              nextVersion = version.substring(0, version.length() - 1) + c;

          }
        }
      }
    return nextVersion;
  }


  private static String increase(int current, String nextVersion) {
    if (current >= (nextVersion.equals("I") ? 0 : Integer.parseInt(nextVersion)))
      nextVersion = NumberUtilities.padd((current + 1) + "", 2, "0");
    //nextVersion = (Math.max(current, (nextVersion.equals("I") ? 0 : Integer.parseInt(nextVersion))) + 1) + "";
    return nextVersion;
  }


}