Class GrammarUtil

java.lang.Object
org.glassfish.jersey.message.internal.GrammarUtil
final class GrammarUtil extends Object
Class containing static utility methods to work with HTTP headers.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    COMMENT
    Represents comment type in the TYPE_TABLE.
    static final int
    CONTROL
    Represents control type in the TYPE_TABLE.
    private static final boolean[]
    IS_TOKEN
    convenience table mapping chars to true if they are tokens.
    private static final boolean[]
    IS_WHITE_SPACE
    Convenience table mapping chars to true if they are white space chars.
    static final int
    QUOTED_STRING
    Represents quotes type in the TYPE_TABLE.
    static final int
    SEPARATOR
    Represents separator type in the TYPE_TABLE.
    private static final char[]
    SEPARATORS
    Array of chars representing separators.
    static final int
    TOKEN
    Represents token type in the TYPE_TABLE.
    private static final int[]
    TYPE_TABLE
    Mapping of chars to types.
    private static final char[]
    WHITE_SPACE
    Array of chars representing white spaces.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    private
    GrammarUtil()
    Prevents instantiation.

  • Method Summary

    Modifier and Type
    Method
    Description
    static boolean
    containsWhiteSpace(String s)
    Returns true if string s contains a white space char.
    private static int[]
    createEventTable()
     
    private static boolean[]
    createTokenTable()
     
    private static boolean[]
    createWhiteSpaceTable()
     
    static String
    filterToken(CharSequence s, int start, int end)
    Filter a substring of a string by removing any new-line characters and un-escaping escaped characters.
    static String
    filterToken(CharSequence s, int start, int end, boolean preserveBackslash)
    Filter a substring of a string by removing any new-line characters and un-escaping escaped characters (unless preserveBackslash is set to true).
    static int
    getType(char c)
    Get the character type.
    static boolean
    isSeparator(char c)
    Returns true if the provided char is a separator.
    static boolean
    isToken(char c)
    Returns true if the provided char is a token.
    static boolean
    isTokenString(String s)
    Returns true if all chars in string s are tokens.
    static boolean
    isWhiteSpace(char c)
    Returns true if the provided char is a white space.

    Methods inherited from class Object

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

  • Field Details

    • TOKEN

      public static final int TOKEN
      Represents token type in the TYPE_TABLE.
      See Also:

    • QUOTED_STRING

      public static final int QUOTED_STRING
      Represents quotes type in the TYPE_TABLE.
      See Also:

    • COMMENT

      public static final int COMMENT
      Represents comment type in the TYPE_TABLE.
      See Also:

    • SEPARATOR

      public static final int SEPARATOR
      Represents separator type in the TYPE_TABLE.
      See Also:

    • CONTROL

      public static final int CONTROL
      Represents control type in the TYPE_TABLE.
      See Also:

    • WHITE_SPACE

      private static final char[] WHITE_SPACE
      Array of chars representing white spaces.

    • SEPARATORS

      private static final char[] SEPARATORS
      Array of chars representing separators.

    • TYPE_TABLE

      private static final int[] TYPE_TABLE
      Mapping of chars to types.

    • IS_WHITE_SPACE

      private static final boolean[] IS_WHITE_SPACE
      Convenience table mapping chars to true if they are white space chars.

    • IS_TOKEN

      private static final boolean[] IS_TOKEN
      convenience table mapping chars to true if they are tokens.

  • Constructor Details

    • GrammarUtil

      private GrammarUtil()
      Prevents instantiation.

  • Method Details

    • createEventTable

      private static int[] createEventTable()

    • createWhiteSpaceTable

      private static boolean[] createWhiteSpaceTable()

    • createTokenTable

      private static boolean[] createTokenTable()

    • isWhiteSpace

      public static boolean isWhiteSpace(char c)
      Returns true if the provided char is a white space.
      Parameters:
      c - char to check.
      Returns:
      true if c is a white space.

    • isToken

      public static boolean isToken(char c)
      Returns true if the provided char is a token.
      Parameters:
      c - char to check.
      Returns:
      true if c is a token.

    • getType

      public static int getType(char c)
      Get the character type.
      Parameters:
      c - char to check.
      Returns:
      character type identifier.
      Throws:
      IllegalArgumentException - in case the character value is greater than 127.

    • isSeparator

      public static boolean isSeparator(char c)
      Returns true if the provided char is a separator.
      Parameters:
      c - char to check.
      Returns:
      true if c is a token.

    • isTokenString

      public static boolean isTokenString(String s)
      Returns true if all chars in string s are tokens.
      Parameters:
      s - string to check for tokens.
      Returns:
      true if all chars in s are tokens.

    • containsWhiteSpace

      public static boolean containsWhiteSpace(String s)
      Returns true if string s contains a white space char.
      Parameters:
      s - string to check for white spaces.
      Returns:
      true if s contains white spaces.

    • filterToken

      public static String filterToken(CharSequence s, int start, int end)
      Filter a substring of a string by removing any new-line characters and un-escaping escaped characters.
      Parameters:
      s - character sequence to use for substring token filtering.
      start - start filtering position in the string.
      end - end filtering position in the string.
      Returns:
      filtered substring.

    • filterToken

      public static String filterToken(CharSequence s, int start, int end, boolean preserveBackslash)
      Filter a substring of a string by removing any new-line characters and un-escaping escaped characters (unless preserveBackslash is set to true).
      Parameters:
      s - character sequence to use for substring token filtering.
      start - start filtering position in the string.
      end - end filtering position in the string.
      preserveBackslash - if set to true, this method does not treat backslash as an escape character (treats it as a regular character instead)
      Returns:
      filtered substring.