How to use

levelWidth

method

in

org.apache.sis.util.logging.MonolineFormatter

/**
 * Formats the given expected string to a format matching the current locale setting.
 * The given string shall use tabulation before each line of the message.
 */
private static String localize(final Level level, final String expected) {
  final String levelToReplace = level.getName();
  final String levelLocalized = level.getLocalizedName();
  assertTrue(expected, expected.startsWith(levelToReplace));
  final int margin = MonolineFormatter.levelWidth(null);
  final StringBuilder buffer = new StringBuilder(expected.length() + 40)
      .append(levelLocalized)
      .append(CharSequences.spaces(margin - levelLocalized.length()))
      .append(expected, levelToReplace.length() + 1, expected.length());      // +1 is for skipping '\t'.
  final String spaces = MonolineFormatter.CONTINUATION_MARK
            + CharSequences.spaces(margin - 1).toString();
  int positionOfLast = -1;
  for (int i=margin; (i=buffer.indexOf("\n\t", i)) >= 0; i += margin) {
    buffer.replace(positionOfLast = ++i, i+1, spaces);                          // Replace only tabulation, leave new line.
  }
  if (positionOfLast >= 0) {
    buffer.setCharAt(positionOfLast, MonolineFormatter.CONTINUATION_END);
  }
  return buffer.toString();
}

/**
 * Tests {@link MonolineFormatter#levelWidth(Level)}.
 */
@Test
public void testlevelWidth() {
  final String severe = Level.SEVERE.getLocalizedName();
  assertEquals(severe, severe.length(), MonolineFormatter.levelWidth(Level.SEVERE));
  final String warning = Level.WARNING.getLocalizedName();
  assertEquals(warning, StrictMath.max(severe.length(), warning.length()),
      MonolineFormatter.levelWidth(Level.WARNING));
}

levelWidth = levelWidth((handler != null) ? handler.getLevel() : null);

levelWidth = levelWidth((handler != null) ? handler.getLevel() : null);