Class GrammarUtil
- java.lang.Object
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- org.glassfish.jersey.message.internal.GrammarUtil
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final class GrammarUtil extends java.lang.Object
Class containing static utility methods to work with HTTP headers.
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Field Summary
Fields Modifier and Type Field Description static int
COMMENT
Represents comment type in the TYPE_TABLE.static int
CONTROL
Represents control type in the TYPE_TABLE.private static boolean[]
IS_TOKEN
convenience table mapping chars to true if they are tokens.private static boolean[]
IS_WHITE_SPACE
Convenience table mapping chars to true if they are white space chars.static int
QUOTED_STRING
Represents quotes type in the TYPE_TABLE.static int
SEPARATOR
Represents separator type in the TYPE_TABLE.private static char[]
SEPARATORS
Array of chars representing separators.static int
TOKEN
Represents token type in the TYPE_TABLE.private static int[]
TYPE_TABLE
Mapping of chars to types.private static char[]
WHITE_SPACE
Array of chars representing white spaces.
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Constructor Summary
Constructors Modifier Constructor Description private
GrammarUtil()
Prevents instantiation.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static boolean
containsWhiteSpace(java.lang.String s)
Returnstrue
if string s contains a white space char.private static int[]
createEventTable()
private static boolean[]
createTokenTable()
private static boolean[]
createWhiteSpaceTable()
static java.lang.String
filterToken(java.lang.CharSequence s, int start, int end)
Filter a substring of a string by removing any new-line characters and un-escaping escaped characters.static java.lang.String
filterToken(java.lang.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 totrue
).static int
getType(char c)
Get the character type.static boolean
isSeparator(char c)
Returnstrue
if the provided char is a separator.static boolean
isToken(char c)
Returnstrue
if the provided char is a token.static boolean
isTokenString(java.lang.String s)
Returnstrue
if all chars in string s are tokens.static boolean
isWhiteSpace(char c)
Returnstrue
if the provided char is a white space.
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Field Detail
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TOKEN
public static final int TOKEN
Represents token type in the TYPE_TABLE.- See Also:
- Constant Field Values
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QUOTED_STRING
public static final int QUOTED_STRING
Represents quotes type in the TYPE_TABLE.- See Also:
- Constant Field Values
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COMMENT
public static final int COMMENT
Represents comment type in the TYPE_TABLE.- See Also:
- Constant Field Values
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SEPARATOR
public static final int SEPARATOR
Represents separator type in the TYPE_TABLE.- See Also:
- Constant Field Values
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CONTROL
public static final int CONTROL
Represents control type in the TYPE_TABLE.- See Also:
- Constant Field Values
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WHITE_SPACE
private static final char[] WHITE_SPACE
Array of chars representing white spaces.
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SEPARATORS
private static final char[] SEPARATORS
Array of chars representing separators.
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TYPE_TABLE
private static final int[] TYPE_TABLE
Mapping of chars to types.
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IS_WHITE_SPACE
private static final boolean[] IS_WHITE_SPACE
Convenience table mapping chars to true if they are white space chars.
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IS_TOKEN
private static final boolean[] IS_TOKEN
convenience table mapping chars to true if they are tokens.
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Method Detail
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createEventTable
private static int[] createEventTable()
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createWhiteSpaceTable
private static boolean[] createWhiteSpaceTable()
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createTokenTable
private static boolean[] createTokenTable()
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isWhiteSpace
public static boolean isWhiteSpace(char c)
Returnstrue
if the provided char is a white space.- Parameters:
c
- char to check.- Returns:
true
if c is a white space.
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isToken
public static boolean isToken(char c)
Returnstrue
if the provided char is a token.- Parameters:
c
- char to check.- Returns:
true
if c is a token.
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getType
public static int getType(char c)
Get the character type.- Parameters:
c
- char to check.- Returns:
- character type identifier.
- Throws:
java.lang.IllegalArgumentException
- in case the character value is greater than 127.
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isSeparator
public static boolean isSeparator(char c)
Returnstrue
if the provided char is a separator.- Parameters:
c
- char to check.- Returns:
true
if c is a token.
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isTokenString
public static boolean isTokenString(java.lang.String s)
Returnstrue
if all chars in string s are tokens.- Parameters:
s
- string to check for tokens.- Returns:
true
if all chars in s are tokens.
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containsWhiteSpace
public static boolean containsWhiteSpace(java.lang.String s)
Returnstrue
if string s contains a white space char.- Parameters:
s
- string to check for white spaces.- Returns:
true
if s contains white spaces.
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filterToken
public static java.lang.String filterToken(java.lang.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.
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filterToken
public static java.lang.String filterToken(java.lang.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 totrue
).- 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 totrue
, this method does not treat backslash as an escape character (treats it as a regular character instead)- Returns:
- filtered substring.
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