public void connect(String host, int port) throws Exception {
//
if (!this.connected.compareAndSet(false, true)) {
return;
}
//
if (isVerbose() && LOGGER.isInfoEnabled()) {
LOGGER.info("connecting to host: {}, port: {}", host, port);
}
//
this.socket = this.socketFactory.create(host, port);
this.os = new TransportOutputStreamImpl(this.socket.getOutputStream());
if (this.level2BufferSize <= 0) {
this.is = new TransportInputStreamImpl(this.socket.getInputStream(), this.level1BufferSize);
} else {
this.is =
new TransportInputStreamImpl(
new ActiveBufferedInputStream(this.socket.getInputStream(), this.level2BufferSize),
this.level1BufferSize);
}
//
final Packet packet = this.is.readPacket();
if (packet.getPacketBody()[0] == ErrorPacket.PACKET_MARKER) {
final ErrorPacket error = ErrorPacket.valueOf(packet);
LOGGER.info(
"failed to connect to host: {}, port: {}, error", new Object[] {host, port, error});
throw new TransportException(error);
} else {
//
final GreetingPacket greeting = GreetingPacket.valueOf(packet);
this.context.setServerHost(host);
this.context.setServerPort(port);
this.context.setServerStatus(greeting.getServerStatus());
this.context.setServerVersion(greeting.getServerVersion().toString());
this.context.setServerCollation(greeting.getServerCollation());
this.context.setServerCapabilities(greeting.getServerCapabilities());
this.context.setThreadId(greeting.getThreadId());
this.context.setProtocolVersion(greeting.getProtocolVersion());
this.context.setScramble(
greeting.getScramble1().toString() + greeting.getScramble2().toString());
//
if (isVerbose() && LOGGER.isInfoEnabled()) {
LOGGER.info(
"connected to host: {}, port: {}, context: {}",
new Object[] {host, port, this.context});
}
}
//
this.authenticator.login(this);
}
public TransportException(ErrorPacket ep) {
super(ep.getErrorMessage().toString());
this.errorCode = ep.getErrorCode();
this.sqlState = ep.getSqlState().toString();
this.errorMessage = ep.getErrorMessage().toString();
}