Class MimeUtil

java.lang.Object
org.apache.james.mime4j.util.MimeUtil
public final class MimeUtil extends Object
A utility class, which provides some MIME related application logic.

  • Field Details

  • Constructor Details

    • MimeUtil

      private MimeUtil()

  • Method Details

    • isSameMimeType

      public static boolean isSameMimeType(String pType1, String pType2)
      Returns, whether the given two MIME types are identical.

    • isMessage

      public static boolean isMessage(String pMimeType)
      Returns true, if the given MIME type is that of a message.

    • isMultipart

      public static boolean isMultipart(String pMimeType)
      Return true, if the given MIME type indicates a multipart entity.

    • isBase64Encoding

      public static boolean isBase64Encoding(String pTransferEncoding)
      Returns, whether the given transfer-encoding is "base64".

    • isQuotedPrintableEncoded

      public static boolean isQuotedPrintableEncoded(String pTransferEncoding)
      Returns, whether the given transfer-encoding is "quoted-printable".

    • createUniqueBoundary

      public static String createUniqueBoundary()
      Creates a new unique message boundary string that can be used as boundary parameter for the Content-Type header field of a message.
      Returns:
      a new unique message boundary string.

    • createUniqueMessageId

      public static String createUniqueMessageId(String hostName)
      Creates a new unique message identifier that can be used in message header field such as Message-ID or In-Reply-To. If the given host name is not null it will be used as suffix for the message ID (following an at sign). The resulting string is enclosed in angle brackets (< and >);
      Parameters:
      hostName - host name to be included in the message ID or null if no host name should be included.
      Returns:
      a new unique message identifier.

    • formatDate

      public static String formatDate(Date date, TimeZone zone)
      Formats the specified date into a RFC 822 date-time string.
      Parameters:
      date - date to be formatted into a string.
      zone - the time zone to use or null to use the default time zone.
      Returns:
      the formatted time string.

    • zone

      private static ZoneId zone(TimeZone zone)

    • fold

      public static String fold(String s, int usedCharacters)
      Splits the specified string into a multiple-line representation with lines no longer than 76 characters (because the line might contain encoded words; see RFC 2047 section 2). If the string contains non-whitespace sequences longer than 76 characters a line break is inserted at the whitespace character following the sequence resulting in a line longer than 76 characters.
      Parameters:
      s - string to split.
      usedCharacters - number of characters already used up. Usually the number of characters for header field name plus colon and one space.
      Returns:
      a multiple-line representation of the given string.

    • unfold

      public static String unfold(String s)
      Unfold a multiple-line representation into a single line.
      Parameters:
      s - string to unfold.
      Returns:
      unfolded string.

    • unscrambleHeaderValue

      public static String unscrambleHeaderValue(String headerValue)
      Unfold and decode header value

    • unfold0

      private static String unfold0(String s, int crlfIdx)

    • indexOfWsp

      private static int indexOfWsp(String s, int fromIndex)

    • nextCounterValue

      private static int nextCounterValue()

    • monthOfYear

      private static Map<Long,String> monthOfYear()

    • dayOfWeek

      private static Map<Long,String> dayOfWeek()