public void testCloseExpiredConnections() throws Exception {
HttpParams mgrpar = defaultParams.copy();
ConnManagerParams.setMaxTotalConnections(mgrpar, 1);
SingleClientConnManager mgr = createSCCM(mgrpar, null);
final HttpHost target = getServerHttp();
final HttpRoute route = new HttpRoute(target, null, false);
ManagedClientConnection conn = mgr.getConnection(route, null);
conn.open(route, httpContext, defaultParams);
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
mgr.closeExpiredConnections();
conn = mgr.getConnection(route, null);
assertTrue(conn.isOpen());
mgr.releaseConnection(conn, 100, TimeUnit.MILLISECONDS);
Thread.sleep(150);
mgr.closeExpiredConnections();
conn = mgr.getConnection(route, null);
assertFalse(conn.isOpen());
mgr.shutdown();
}
/**
* Obtains a connection.
*
* @param route where the connection should point to
* @return a connection that can be used to communicate along the given route
*/
public ManagedClientConnection getConnection(final HttpRoute route, final Object state) {
Args.notNull(route, "Route");
assertStillUp();
if (log.isDebugEnabled()) {
log.debug("Get connection for route " + route);
}
synchronized (this) {
Asserts.check(managedConn == null, MISUSE_MESSAGE);
// check re-usability of the connection
boolean recreate = false;
boolean shutdown = false;
// Kill the connection if it expired.
closeExpiredConnections();
if (uniquePoolEntry.connection.isOpen()) {
final RouteTracker tracker = uniquePoolEntry.tracker;
shutdown =
(tracker == null
|| // can happen if method is aborted
!tracker.toRoute().equals(route));
} else {
// If the connection is not open, create a new PoolEntry,
// as the connection may have been marked not reusable,
// due to aborts -- and the PoolEntry should not be reused
// either. There's no harm in recreating an entry if
// the connection is closed.
recreate = true;
}
if (shutdown) {
recreate = true;
try {
uniquePoolEntry.shutdown();
} catch (final IOException iox) {
log.debug("Problem shutting down connection.", iox);
}
}
if (recreate) {
uniquePoolEntry = new PoolEntry();
}
managedConn = new ConnAdapter(uniquePoolEntry, route);
return managedConn;
}
}
