Enum Constant Detail

• UNKNOWN

  public static final ImageType UNKNOWN

  Unknown or currently unsupported image type, Strings for media type and extension are null.

• ALL_IMAGES

  public static final ImageType ALL_IMAGES

  The ALL_IMAGES image type has the media type "image/*", and the file extension set to "*".

• PNG

  public static final ImageType PNG

  PNG: "image/png", extension ".png" (no support for "Animated PNG" a.k.a. "APNG" with file extension ".apng").

• JPEG

  public static final ImageType JPEG

  JPEG: "image/jpeg", extensions ".jpg,.jpeg,.jpe,.jif,.jfif,.jfi".

• GIF

  public static final ImageType GIF

  GIF: "image/gif", extension ".gif".

• WEBP

  public static final ImageType WEBP

  WebP: "media/webp", extension ".webp".

• TIFF

  public static final ImageType TIFF

  TIFF: "image/tiff", extensions ".tif,.tiff".

• BMP

  public static final ImageType BMP

  BMP: "image/bmp", extension ".bmp".

• WBMP

  public static final ImageType WBMP

  WBMP: "image/vnd.wap.wbmp", extension ".wbmp".

Field Detail

• isValidExtension

  public final boolean isValidExtension

  Flag for defined image type, i.e. not {@link #UNKNOWN} or {@link #ALL_IMAGES}.

• mediaType

  public final java.lang.String mediaType

  The media type, or null for {@link #UNKNOWN}.

• extensions

  public final java.lang.String extensions

  The common file extensions for this image media type, in lower case.

  It is a comma separated string of file extensions, including the "dot".

  It is "*" for {@link #ALL_IMAGES} image media type.

  It is null for {@link #UNKNOWN} image media type.

• firstExtension

  public final java.lang.String firstExtension

  The first and most common file extension starting with '.' if not ALL_IMAGES otherwise '*' for {link #ALL_IMAGES} or null for UNKNOWN.

• extensionsNoDot

  public final java.util.Set<java.lang.String> extensionsNoDot

  The file extensions without leading "dot" as an unmodifiable collection. Note: the ordering of the original extensions is kept.

Method Detail

• values

  public static ImageType[] values()

  Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

  for (ImageType c : ImageType.values())
      System.out.println(c);
  

  Returns:

  an array containing the constants of this enum type, in the order they are declared

• valueOf

  public static ImageType valueOf​(java.lang.String name)

  Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

  Parameters:

  name - the name of the enum constant to be returned.

  Returns:

  the enum constant with the specified name

  Throws:

  java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

  java.lang.NullPointerException - if the argument is null

• fromExtension

  public static ImageType fromExtension​(java.lang.String extension)

  Finds the image type for a file extension.

  Parameters:

  extension - File extension with or without a dot, case insensitive.

  Returns:

  The media type, or null if not found. Note that {@link #ALL_IMAGES} is returned if the extension is equal to "*" (asterisk) or ".*" (dot-asterisk).

• fromMediaType

  public static ImageType fromMediaType​(java.lang.String mediaType)

  Finds the image type from the "image/..." string.

  Parameters:

  mediaType - The media type (case sensitive).

  Returns:

  The media type, or null if not found. Note that {@link #ALL_IMAGES} is returned if the mediaType is equal to "image/*".