/**
* Establishes the TCP/IP connection to serverName and portNumber of this Connection
*
* @throws SQLTimeoutException If the connection cannot be established within the connect timeout
* (either explicitly set or implied by the OS timeout of the socket)
* @throws SQLException If the connection cannot be established.
*/
public final void socketConnect() throws SQLException {
try {
socket = new Socket();
socket.setTcpNoDelay(true);
final int connectTimeout = attachProperties.getConnectTimeout();
final int socketConnectTimeout;
if (connectTimeout != -1) {
// connectTimeout is in seconds, need milliseconds
socketConnectTimeout = (int) TimeUnit.SECONDS.toMillis(connectTimeout);
// Blocking timeout initially identical to connect timeout
socket.setSoTimeout(socketConnectTimeout);
} else {
// socket connect timeout is not set, so indefinite (0)
socketConnectTimeout = 0;
// Blocking timeout to normal socket timeout, 0 if not set
socket.setSoTimeout(Math.max(attachProperties.getSoTimeout(), 0));
}
final int socketBufferSize = attachProperties.getSocketBufferSize();
if (socketBufferSize != IConnectionProperties.DEFAULT_SOCKET_BUFFER_SIZE) {
socket.setReceiveBufferSize(socketBufferSize);
socket.setSendBufferSize(socketBufferSize);
}
socket.connect(new InetSocketAddress(getServerName(), getPortNumber()), socketConnectTimeout);
} catch (SocketTimeoutException ste) {
throw new FbExceptionBuilder()
.timeoutException(ISCConstants.isc_network_error)
.messageParameter(getServerName())
.cause(ste)
.toSQLException();
} catch (IOException ioex) {
throw new FbExceptionBuilder()
.exception(ISCConstants.isc_network_error)
.messageParameter(getServerName())
.cause(ioex)
.toSQLException();
}
}
/**
* Resets the socket timeout to the configured socketTimeout. Does nothing if currently not
* connected.
*
* @throws SQLException If the timeout value cannot be changed
*/
public final void resetSocketTimeout() throws SQLException {
if (isConnected()) {
try {
final int soTimeout = attachProperties.getSoTimeout();
final int desiredTimeout = soTimeout != -1 ? soTimeout : 0;
if (socket.getSoTimeout() != desiredTimeout) {
socket.setSoTimeout(desiredTimeout);
}
} catch (SocketException e) {
// TODO Add SQLState
throw new SQLException("Unable to change socket timeout (SO_TIMEOUT)", e);
}
}
}