org.apache.juneau.http

Class UserAgent

java.lang.Object

org.apache.juneau.http.HeaderString

org.apache.juneau.http.UserAgent

public final class UserAgent
extends HeaderString

Represents a parsed User-Agent HTTP request header.

The user agent string of the user agent.

Example

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20100101 Firefox/21.0

RFC2616 Specification

The User-Agent request-header field contains information about the user agent originating the request. This is for statistical purposes, the tracing of protocol violations, and automated recognition of user agents for the sake of tailoring responses to avoid particular user agent limitations. User agents SHOULD include this field with requests. The field can contain multiple product tokens (section 3.8) and comments identifying the agent and any sub-products which form a significant part of the user agent. By convention, the product tokens are listed in order of their significance for identifying the application.

User-Agent = "User-Agent" ":" 1*( product | comment )

Example:

User-Agent: CERN-LineMode/2.15 libwww/2.17b3

See Also:

• Hypertext Transfer Protocol -- HTTP/1.1

Method Summary

Modifier and Type	Method and Description
static UserAgent	forString(String value) Returns a parsed User-Agent header.

Methods inherited from class org.apache.juneau.http.HeaderString

asString, eq, eqIC, toString

Methods inherited from class java.lang.Object

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

Method Detail

forString

public static UserAgent forString(String value)

Returns a parsed User-Agent header.

Parameters:

value - The User-Agent header string.

Returns:

The parsed User-Agent header, or null if the string was null.