Package com.twelvemonkeys.net

Class MIMEUtil

  • public final class MIMEUtil
extends java.lang.Object
    Contains mappings from file extension to mime-types and from mime-type to file-types.
    Version:
    $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/net/MIMEUtil.java#5 $
    See Also:
    MIME Media Types

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sExtToMIME  
      private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sMIMEToExt  
      private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sUnmodifiableExtToMIME  
      private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sUnmodifiableMIMEToExt  

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private MIMEUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String bareMIME​(java.lang.String pMIME)
      Removes any charset or extra info from the mime-type string (anything after a semicolon, ;, inclusive).
      static java.lang.String getExtension​(java.lang.String pMIME)
      Returns the default file extension for the given MIME type.
      private static java.util.List<java.lang.String> getExtensionForWildcard​(java.lang.String pMIME)  
      static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> getExtensionMappings()
      Returns an unmodifiabale Map view of the MIME to extension mapping, to use as the default mapping in client applications.
      static java.util.List<java.lang.String> getExtensions​(java.lang.String pMIME)
      Returns all file extension for the given MIME type.
      static java.lang.String getMIMEType​(java.lang.String pFileExt)
      Returns the default MIME type for the given file extension.
      static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> getMIMETypeMappings()
      Returns an unmodifiabale Map view of the extension to MIME mapping, to use as the default mapping in client applications.
      static java.util.List<java.lang.String> getMIMETypes​(java.lang.String pFileExt)
      Returns all MIME types for the given file extension.
      (package private) static boolean includes​(java.lang.String pTypeFamily, java.lang.String pType)
      Tests wehter the type is a subtype of the type family.
      static void main​(java.lang.String[] pArgs)
      For debugging.
      private static java.util.List<java.lang.String> maskNull​(java.util.List<java.lang.String> pTypes)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • sExtToMIME

        private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sExtToMIME

      • sUnmodifiableExtToMIME

        private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sUnmodifiableExtToMIME

      • sMIMEToExt

        private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sMIMEToExt

      • sUnmodifiableMIMEToExt

        private static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> sUnmodifiableMIMEToExt

    • Constructor Detail

      • MIMEUtil

        private MIMEUtil()

    • Method Detail

      • getMIMEType

        public static java.lang.String getMIMEType​(java.lang.String pFileExt)
        Returns the default MIME type for the given file extension.
        Parameters:
        pFileExt - the file extension
        Returns:
        a String containing the MIME type, or null if there are no known MIME types for the given file extension.

      • getMIMETypes

        public static java.util.List<java.lang.String> getMIMETypes​(java.lang.String pFileExt)
        Returns all MIME types for the given file extension.
        Parameters:
        pFileExt - the file extension
        Returns:
        a List of Strings containing the MIME types, or an empty list, if there are no known MIME types for the given file extension.

      • getMIMETypeMappings

        public static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> getMIMETypeMappings()
        Returns an unmodifiabale Map view of the extension to MIME mapping, to use as the default mapping in client applications.
        Returns:
        an unmodifiabale Map view of the extension to MIME mapping.

      • getExtension

        public static java.lang.String getExtension​(java.lang.String pMIME)
        Returns the default file extension for the given MIME type. Specifying a wildcard type will return null.
        Parameters:
        pMIME - the MIME type
        Returns:
        a String containing the file extension, or null if there are no known file extensions for the given MIME type.

      • getExtensions

        public static java.util.List<java.lang.String> getExtensions​(java.lang.String pMIME)
        Returns all file extension for the given MIME type. The default extension will be the first in the list. Note that no specific order is given for wildcard types (image/*, */* etc).
        Parameters:
        pMIME - the MIME type
        Returns:
        a List of Strings containing the MIME types, or an empty list, if there are no known file extensions for the given MIME type.

      • getExtensionForWildcard

        private static java.util.List<java.lang.String> getExtensionForWildcard​(java.lang.String pMIME)

      • getExtensionMappings

        public static java.util.Map<java.lang.String,​java.util.List<java.lang.String>> getExtensionMappings()
        Returns an unmodifiabale Map view of the MIME to extension mapping, to use as the default mapping in client applications.
        Returns:
        an unmodifiabale Map view of the MIME to extension mapping.

      • includes

        static boolean includes​(java.lang.String pTypeFamily,
                        java.lang.String pType)
        Tests wehter the type is a subtype of the type family.
        Parameters:
        pTypeFamily - the MIME type family (image/*, *&#47;*, etc)
        pType - the MIME type
        Returns:
        true if pType is a subtype of pTypeFamily, otherwise false

      • bareMIME

        public static java.lang.String bareMIME​(java.lang.String pMIME)
        Removes any charset or extra info from the mime-type string (anything after a semicolon, ;, inclusive).
        Parameters:
        pMIME - the mime-type string
        Returns:
        the bare mime-type

      • maskNull

        private static java.util.List<java.lang.String> maskNull​(java.util.List<java.lang.String> pTypes)

      • main

        public static void main​(java.lang.String[] pArgs)
        For debugging. Prints all known MIME types and file extensions.
        Parameters:
        pArgs - command line arguments