org.apache.http.impl
Class DefaultConnectionReuseStrategy
java.lang.Object
   org.apache.http.impl.DefaultConnectionReuseStrategy
org.apache.http.impl.DefaultConnectionReuseStrategy
- All Implemented Interfaces: 
- ConnectionReuseStrategy
- @Contract(threading=IMMUTABLE)
public class DefaultConnectionReuseStrategy 
- extends Object- implements ConnectionReuseStrategy
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.
- Since:
- 4.0
 
 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
INSTANCE
public static final DefaultConnectionReuseStrategy INSTANCE
DefaultConnectionReuseStrategy
public DefaultConnectionReuseStrategy()
keepAlive
public boolean keepAlive(HttpResponse response,
                         HttpContext context)
- Description copied from interface: ConnectionReuseStrategy
- Decides whether a connection can be kept open after a request.
 If this method returns false, the caller MUST
 close the connection to correctly comply with the HTTP protocol.
 If it returnstrue, the caller SHOULD attempt to
 keep the connection open for reuse with another request.
 One can use the HTTP context to retrieve additional objects that
 may be relevant for the keep-alive strategy: the actual HTTP
 connection, the original HTTP request, target host if known,
 number of times the connection has been reused already and so on.
  
 If the connection is already closed, falseis returned.
 The stale connection check MUST NOT be triggered by a
 connection reuse strategy.
 
 
- 
- Specified by:
- keepAlivein interface- ConnectionReuseStrategy
 
- 
- Parameters:
- response- The last response received over that connection.
- context- the context in which the connection is being
          used.
- Returns:
- trueif the connection is allowed to be reused, or- falseif it MUST NOT be reused
 
createTokenIterator
protected TokenIterator createTokenIterator(HeaderIterator hit)
- Creates a token iterator from a header iterator.
 This method can be overridden to replace the implementation of
 the token iterator.
 
- 
 
- 
- Parameters:
- hit- the header iterator
- Returns:
- the token iterator
 
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