/**
* Closes a connection from this pool.
*
* @param conn the connection to close, or <code>null</code>
*/
protected void closeConnection(final OperatedClientConnection conn) {
if (conn != null) {
try {
conn.close();
} catch (IOException ex) {
log.debug("I/O error closing connection", ex);
}
}
}
// non-javadoc, see interface ClientConnectionOperator
public void updateSecureConnection(
OperatedClientConnection conn, HttpHost target, HttpContext context, HttpParams params)
throws IOException {
if (conn == null) {
throw new IllegalArgumentException("Connection must not be null.");
}
if (target == null) {
throw new IllegalArgumentException("Target host must not be null.");
}
// @@@ is context allowed to be null?
if (params == null) {
throw new IllegalArgumentException("Parameters must not be null.");
}
if (!conn.isOpen()) {
throw new IllegalArgumentException("Connection must be open.");
}
final Scheme schm = schemeRegistry.getScheme(target.getSchemeName());
if (!(schm.getSocketFactory() instanceof LayeredSocketFactory)) {
throw new IllegalArgumentException(
"Target scheme (" + schm.getName() + ") must have layered socket factory.");
}
final LayeredSocketFactory lsf = (LayeredSocketFactory) schm.getSocketFactory();
final Socket sock;
try {
sock =
lsf.createSocket(
conn.getSocket(), target.getHostName(), schm.resolvePort(target.getPort()), true);
} catch (ConnectException ex) {
throw new HttpHostConnectException(target, ex);
}
prepareSocket(sock, context, params);
conn.update(sock, target, lsf.isSecure(sock), params);
// @@@ error handling: close the layered socket in case of exception?
} // updateSecureConnection
// non-javadoc, see interface ClientConnectionOperator
public void openConnection(
OperatedClientConnection conn,
HttpHost target,
InetAddress local,
HttpContext context,
HttpParams params)
throws IOException {
if (conn == null) {
throw new IllegalArgumentException("Connection must not be null.");
}
if (target == null) {
throw new IllegalArgumentException("Target host must not be null.");
}
// local address may be null
// @@@ is context allowed to be null?
if (params == null) {
throw new IllegalArgumentException("Parameters must not be null.");
}
if (conn.isOpen()) {
throw new IllegalArgumentException("Connection must not be open.");
}
final Scheme schm = schemeRegistry.getScheme(target.getSchemeName());
final SocketFactory sf = schm.getSocketFactory();
final SocketFactory plain_sf;
final LayeredSocketFactory layered_sf;
if (sf instanceof LayeredSocketFactory) {
plain_sf = staticPlainSocketFactory;
layered_sf = (LayeredSocketFactory) sf;
} else {
plain_sf = sf;
layered_sf = null;
}
InetAddress[] addresses = InetAddress.getAllByName(target.getHostName());
for (int i = 0; i < addresses.length; ++i) {
Socket sock = plain_sf.createSocket();
conn.opening(sock, target);
try {
Socket connsock =
plain_sf.connectSocket(
sock,
addresses[i].getHostAddress(),
schm.resolvePort(target.getPort()),
local,
0,
params);
if (sock != connsock) {
sock = connsock;
conn.opening(sock, target);
}
/*
* prepareSocket is called on the just connected
* socket before the creation of the layered socket to
* ensure that desired socket options such as
* TCP_NODELAY, SO_RCVTIMEO, SO_LINGER will be set
* before any I/O is performed on the socket. This
* happens in the common case as
* SSLSocketFactory.createSocket performs hostname
* verification which requires that SSL handshaking be
* performed.
*/
prepareSocket(sock, context, params);
if (layered_sf != null) {
Socket layeredsock =
layered_sf.createSocket(
sock, target.getHostName(), schm.resolvePort(target.getPort()), true);
if (layeredsock != sock) {
conn.opening(layeredsock, target);
}
conn.openCompleted(sf.isSecure(layeredsock), params);
} else {
conn.openCompleted(sf.isSecure(sock), params);
}
break;
// BEGIN android-changed
// catch SocketException to cover any kind of connect failure
} catch (SocketException ex) {
if (i == addresses.length - 1) {
ConnectException cause =
ex instanceof ConnectException
? (ConnectException) ex
: new ConnectException(ex.getMessage(), ex);
throw new HttpHostConnectException(target, cause);
}
// END android-changed
} catch (ConnectTimeoutException ex) {
if (i == addresses.length - 1) {
throw ex;
}
}
}
} // openConnection