- All Implemented Interfaces:
Cloneable
,org.glassfish.grizzly.Cacheable
A cookie has a name, a single value, and optional attributes such as a comment, path and domain qualifiers, a maximum age, and a version number. Some Web browsers have bugs in how they handle the optional attributes, so use them sparingly to improve the interoperability of your servlets. The browser is expected to support 20 cookies for each Web server, 300 cookies total, and may limit cookie size to 4 KB each.
Cookies affect the caching of the Web pages that use them. HTTP 1.0 does not cache pages that use cookies created with this class. This class does not support the cache control defined with HTTP 1.1.
This class supports both the Version 0 (by Netscape) and Version 1 (by RFC 2109) cookie specifications. By default, cookies are created using Version 0 to ensure the best interoperability.
- Version:
- $Version$
- Author:
- Various
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionorg.glassfish.grizzly.Buffer
org.glassfish.grizzly.Buffer
asClientCookieBuffer
(org.glassfish.grizzly.memory.MemoryManager memoryManager) org.glassfish.grizzly.Buffer
org.glassfish.grizzly.Buffer
asServerCookieBuffer
(org.glassfish.grizzly.memory.MemoryManager memoryManager) clone()
Overrides the standardjava.lang.Object.clone
method to return a copy of this cookie.Returns the comment describing the purpose of this cookie, ornull
if the cookie has no comment.Return the header name to set the cookie, based on cookie version.static String
getCookieHeaderName
(int version) Return the header name to set the cookie, based on cookie version.Returns the domain name set for this cookie.int
Returns the maximum age of the cookie, specified in seconds, By default,-1
indicating the cookie will persist until browser shutdown.getName()
Returns the name of the cookie.getPath()
Returns the path on the server to which the browser returns this cookie.getValue()
Returns the value of the cookie.int
Returns the version of the protocol this cookie complies with.boolean
HttpOnly feature is used in server->client communication only to let client know, that the cookie can not be accessed on the client-side (script etc).boolean
isSecure()
Returns true if the browser is sending cookies only over a secure protocol, or false if the browser can send cookies using any protocol.boolean
protected boolean
lazyNameEquals
(String name) void
recycle()
void
setComment
(String purpose) Specifies a comment that describes a cookie's purpose.void
Specifies the domain within which this cookie should be presented.void
setHttpOnly
(boolean isHttpOnly) HttpOnly feature is used in server->client communication only to let client know, that the cookie can not be accessed on the client-side (script etc).void
setMaxAge
(int expiry) Sets the maximum age of the cookie in seconds.void
void
Specifies a path for the cookie to which the client should return the cookie.void
setSecure
(boolean flag) Indicates to the browser whether the cookie should only be sent using a secure protocol, such as HTTPS or SSL.void
Assigns a new value to a cookie after the cookie is created.void
setVersion
(int v) Sets the version of the cookie protocol this cookie complies with.toString()
protected String
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Field Details
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UNSET
public static final int UNSET- See Also:
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name
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value
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comment
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domain
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maxAge
protected int maxAge -
path
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secure
protected boolean secure -
version
protected int version -
isHttpOnly
protected boolean isHttpOnly -
lazyCookieState
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usingLazyCookieState
protected boolean usingLazyCookieState
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Constructor Details
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Cookie
protected Cookie() -
Cookie
Constructs a cookie with a specified name and value.The name must conform to RFC 2109. That means it can contain only ASCII alphanumeric characters and cannot contain commas, semicolons, or white space or begin with a $ character.
The value can be anything the server chooses to send. Its value is probably of interest only to the server.
By default, cookies are created according to the Netscape cookie specification. The version can be changed with the
setVersion
method.- Parameters:
name
- aString
specifying the name of the cookievalue
- aString
specifying the value of the cookie- Throws:
IllegalArgumentException
- if the cookie name contains illegal characters (for example, a comma, space, or semicolon) or it is one of the tokens reserved for use by the cookie protocol- See Also:
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Method Details
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setComment
Specifies a comment that describes a cookie's purpose. The comment is useful if the browser presents the cookie to the user. Comments are not supported by Netscape Version 0 cookies.- Parameters:
purpose
- aString
specifying the comment to display to the user- See Also:
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getComment
Returns the comment describing the purpose of this cookie, ornull
if the cookie has no comment.- Returns:
- a
String
containing the comment, ornull
if none - See Also:
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setDomain
Specifies the domain within which this cookie should be presented.The form of the domain name is specified by RFC 2109. A domain name begins with a dot (
.foo.com
) and means that the cookie is visible to servers in a specified Domain Name System (DNS) zone (for example,www.foo.com
, but nota.b.foo.com
). By default, cookies are only returned to the server that sent them.- Parameters:
pattern
- aString
containing the domain name within which this cookie is visible; form is according to RFC 2109- See Also:
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getDomain
Returns the domain name set for this cookie. The form of the domain name is set by RFC 2109.- Returns:
- a
String
containing the domain name - See Also:
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setMaxAge
public void setMaxAge(int expiry) Sets the maximum age of the cookie in seconds.A positive value indicates that the cookie will expire after that many seconds have passed. Note that the value is the maximum age when the cookie will expire, not the cookie's current age.
A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits. A zero value causes the cookie to be deleted.
- Parameters:
expiry
- an integer specifying the maximum age of the cookie in seconds; if negative, means the cookie is not stored; if zero, deletes the cookie- See Also:
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getMaxAge
public int getMaxAge()Returns the maximum age of the cookie, specified in seconds, By default,-1
indicating the cookie will persist until browser shutdown.- Returns:
- an integer specifying the maximum age of the cookie in seconds; if negative, means the cookie persists until browser shutdown
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setPath
Specifies a path for the cookie to which the client should return the cookie.The cookie is visible to all the pages in the directory you specify, and all the pages in that directory's subdirectories. A cookie's path must include the servlet that set the cookie, for example, /catalog, which makes the cookie visible to all directories on the server under /catalog.
Consult RFC 2109 (available on the Internet) for more information on setting path names for cookies.
- Parameters:
uri
- aString
specifying a path- See Also:
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getPath
Returns the path on the server to which the browser returns this cookie. The cookie is visible to all subpaths on the server.- Returns:
- a
String
specifying a path that contains a servlet name, for example, /catalog - See Also:
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setSecure
public void setSecure(boolean flag) Indicates to the browser whether the cookie should only be sent using a secure protocol, such as HTTPS or SSL.The default value is false.
- Parameters:
flag
- if true, sends the cookie from the browser to the server only when using a secure protocol; if false, sent on any protocol- See Also:
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isSecure
public boolean isSecure()Returns true if the browser is sending cookies only over a secure protocol, or false if the browser can send cookies using any protocol.- Returns:
- true if the browser uses a secure protocol; otherwise, true
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getName
Returns the name of the cookie. The name cannot be changed after creation.- Returns:
- a
String
specifying the cookie's name
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setName
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setValue
Assigns a new value to a cookie after the cookie is created. If you use a binary value, you may want to use BASE64 encoding.With Version 0 cookies, values should not contain white space, brackets, parentheses, equals signs, commas, double quotes, slashes, question marks, at signs, colons, and semicolons. Empty values may not behave the same way on all browsers.
- Parameters:
newValue
- aString
specifying the new value- See Also:
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getValue
Returns the value of the cookie.- Returns:
- a
String
containing the cookie's present value - See Also:
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getVersion
public int getVersion()Returns the version of the protocol this cookie complies with. Version 1 complies with RFC 2109, and version 0 complies with the original cookie specification drafted by Netscape. Cookies provided by a browser use and identify the browser's cookie version.- Returns:
- 0 if the cookie complies with the original Netscape specification; 1 if the cookie complies with RFC 2109
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setVersion
public void setVersion(int v) Sets the version of the cookie protocol this cookie complies with. Version 0 complies with the original Netscape cookie specification. Version 1 complies with RFC 2109.Since RFC 2109 is still somewhat new, consider version 1 as experimental; do not use it yet on production sites.
- Parameters:
v
- 0 if the cookie should comply with the original Netscape specification; 1 if the cookie should comply with RFC 2109- See Also:
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isVersionSet
public boolean isVersionSet() -
isHttpOnly
public boolean isHttpOnly()HttpOnly feature is used in server->client communication only to let client know, that the cookie can not be accessed on the client-side (script etc). Returns true if this cookie is HTTP only, or false otherwise.- Returns:
- true if this cookie is HTTP only, or false otherwise.
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setHttpOnly
public void setHttpOnly(boolean isHttpOnly) HttpOnly feature is used in server->client communication only to let client know, that the cookie can not be accessed on the client-side (script etc).- Parameters:
isHttpOnly
- true if this cookie is HTTP only, or false otherwise.
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asServerCookieString
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asServerCookieBuffer
public org.glassfish.grizzly.Buffer asServerCookieBuffer() -
asServerCookieBuffer
public org.glassfish.grizzly.Buffer asServerCookieBuffer(org.glassfish.grizzly.memory.MemoryManager memoryManager) -
asClientCookieString
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asClientCookieBuffer
public org.glassfish.grizzly.Buffer asClientCookieBuffer() -
asClientCookieBuffer
public org.glassfish.grizzly.Buffer asClientCookieBuffer(org.glassfish.grizzly.memory.MemoryManager memoryManager) -
getLazyCookieState
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getCookieHeaderName
Return the header name to set the cookie, based on cookie version. -
getCookieHeaderName
Return the header name to set the cookie, based on cookie version. -
lazyNameEquals
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unescape
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clone
Overrides the standardjava.lang.Object.clone
method to return a copy of this cookie.- Overrides:
clone
in classObject
- Throws:
CloneNotSupportedException
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recycle
public void recycle()- Specified by:
recycle
in interfaceorg.glassfish.grizzly.Cacheable
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toString
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