How to use

changeSocket

method

in

org.postgresql.core.PGStream

/**
 * Constructor:  Connect to the PostgreSQL back end and return
 * a stream connection.
 *
 * @param host the hostname to connect to
 * @param port the port number that the postmaster is sitting on
 * @exception IOException if an IOException occurs below it.
 */
public PGStream(String host, int port) throws IOException
{
  this.host = host;
  this.port = port;
  changeSocket(new Socket(host, port));
  setEncoding(Encoding.getJVMEncoding("US-ASCII"));
  _int2buf = new byte[2];
  _int4buf = new byte[4];
}

stream.changeSocket(newConnection);

/**
 * Constructor: Connect to the PostgreSQL back end and return a stream connection.
 *
 * @param socketFactory socket factory to use when creating sockets
 * @param hostSpec the host and port to connect to
 * @param timeout timeout in milliseconds, or 0 if no timeout set
 * @throws IOException if an IOException occurs below it.
 */
public PGStream(SocketFactory socketFactory, HostSpec hostSpec, int timeout) throws IOException {
 this.socketFactory = socketFactory;
 this.hostSpec = hostSpec;
 Socket socket = socketFactory.createSocket();
 if (!socket.isConnected()) {
  // When using a SOCKS proxy, the host might not be resolvable locally,
  // thus we defer resolution until the traffic reaches the proxy. If there
  // is no proxy, we must resolve the host to an IP to connect the socket.
  InetSocketAddress address = hostSpec.shouldResolve()
    ? new InetSocketAddress(hostSpec.getHost(), hostSpec.getPort())
    : InetSocketAddress.createUnresolved(hostSpec.getHost(), hostSpec.getPort());
  socket.connect(address, timeout);
 }
 changeSocket(socket);
 setEncoding(Encoding.getJVMEncoding("UTF-8"));
 _int2buf = new byte[2];
 _int4buf = new byte[4];
}

public static void convert(PGStream stream, Properties info)
  throws PSQLException, IOException {
 LOGGER.log(Level.FINE, "converting regular socket connection to ssl");
 SSLSocketFactory factory = SocketFactoryFactory.getSslSocketFactory(info);
 SSLSocket newConnection;
 try {
  newConnection = (SSLSocket) factory.createSocket(stream.getSocket(),
    stream.getHostSpec().getHost(), stream.getHostSpec().getPort(), true);
  // We must invoke manually, otherwise the exceptions are hidden
  newConnection.setUseClientMode(true);
  newConnection.startHandshake();
 } catch (IOException ex) {
  throw new PSQLException(GT.tr("SSL error: {0}", ex.getMessage()),
    PSQLState.CONNECTION_FAILURE, ex);
 }
 if (factory instanceof LibPQFactory) { // throw any KeyManager exception
  ((LibPQFactory) factory).throwKeyManagerException();
 }
 SslMode sslMode = SslMode.of(info);
 if (sslMode.verifyPeerName()) {
  verifyPeerName(stream, info, newConnection);
 }
 stream.changeSocket(newConnection);
}

/**
 * Constructor:  Connect to the PostgreSQL back end and return
 * a stream connection.
 *
 * @param host the hostname to connect to
 * @param port the port number that the postmaster is sitting on
 * @exception IOException if an IOException occurs below it.
 */
public PGStream(String host, int port) throws IOException
{
  this.host = host;
  this.port = port;
  changeSocket(new Socket(host, port));
  setEncoding(Encoding.getJVMEncoding("US-ASCII"));
  _int2buf = new byte[2];
  _int4buf = new byte[4];
}

/**
 * Constructor:  Connect to the PostgreSQL back end and return
 * a stream connection.
 *
 * @param host the hostname to connect to
 * @param port the port number that the postmaster is sitting on
 * @exception IOException if an IOException occurs below it.
 */
public PGStream(String host, int port) throws IOException
{
  this.host = host;
  this.port = port;
  changeSocket(new Socket(host, port));
  setEncoding(Encoding.getJVMEncoding("US-ASCII"));
  _int2buf = new byte[2];
  _int4buf = new byte[4];
}

stream.changeSocket(newConnection);

stream.changeSocket(newConnection);