Default implementation of a strategy deciding about connection re-use. The default implementation first checks some basics, for example whether the connection is still open or whether the end of the request entity can be determined without closing the connection. If these checks pass, the tokens in the "Connection" header will be examined. In the absence of a "Connection" header, the non-standard but commonly used "Proxy-Connection" header takes it's role. A token "close" indicates that the connection cannot be reused. If there is no such token, a token "keep-alive" indicates that the connection should be re-used. If neither token is found, or if there are no "Connection" headers, the default policy for the HTTP version is applied. Since HTTP/1.1, connections are re-used by default. Up until HTTP/1.0, connections are not re-used by default.
@author
Oleg Kalnichevski
@author
Roland Weber
@version $Revision: 602537 $
@since 4.0