io.ebeaninternal.dbmigration.ddlgeneration.platform.util.VowelRemover Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.8.1

package io.ebeaninternal.dbmigration.ddlgeneration.platform.util;

/**
 * Utility to remove vowels (from constraint names primarily for Oracle and DB2).
 */
public class VowelRemover {

  /**
   * Trim a word by removing vowels skipping some initial characters.
   */
  public static String trim(String word, int skipChars) {

    if (word.length() < skipChars) {
      return word;
    }

    StringBuilder res = new StringBuilder();
    res.append(word.substring(0, skipChars));

    for (int i = skipChars; i < word.length(); i++) {
      char ch = word.charAt(i);
      if (!isVowel(ch)) {
        res.append(ch);
      }
    }
    return res.toString();
  }

  private static boolean isVowel(char ch) {
    ch = Character.toLowerCase(ch);
    return ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u';
  }
}