/** Populates the header with information received via socket */
public void readHeader() throws IOException {
if (this.socket != null) {
final ByteBuffer cb = getCommBuffer();
synchronized (cb) {
fetchHeader();
final int type = cb.getInt();
final int numParts = cb.getInt();
final int txid = cb.getInt();
cb.clear();
if (!MessageType.validate(type)) {
throw new IOException(
LocalizedStrings.ChunkedMessage_INVALID_MESSAGE_TYPE_0_WHILE_READING_HEADER
.toLocalizedString(Integer.valueOf(type)));
}
// Set the header and payload fields only after receiving all the
// socket data, providing better message consistency in the face
// of exceptional conditions (e.g. IO problems, timeouts etc.)
this.msgType = type;
this.numberOfParts = numParts; // Already set in setPayloadFields via setNumberOfParts
this.transactionId = txid;
}
} else {
throw new IOException(LocalizedStrings.ChunkedMessage_DEAD_CONNECTION.toLocalizedString());
}
}
@Override
public void cmdExecute(Message msg, ServerConnection servConn, long start) throws IOException {
// requiresResponse = true; NOT NEEDED... ALWAYS SEND ERROR RESPONSE
logger.fatal(
LocalizedMessage.create(
LocalizedStrings.Default_0_UNKNOWN_MESSAGE_TYPE_1_WITH_TX_2_FROM_3,
new Object[] {
servConn.getName(),
MessageType.getString(msg.getMessageType()),
Integer.valueOf(msg.getTransactionId()),
servConn.getSocketString()
}));
writeErrorResponse(msg, MessageType.UNKNOWN_MESSAGE_TYPE_ERROR, servConn);
// responded = true; NOT NEEDED... ALWAYS SEND ERROR RESPONSE
}
protected Object processResponse(Connection cnx, Message msg) throws Exception {
byte[] bytes = null;
Part part = msg.getPart(0);
final int msgType = msg.getMessageType();
long userId = -1;
if (msgType == MessageType.RESPONSE) {
bytes = (byte[]) part.getObject();
if (bytes.length == 0) {
cnx.getServer().setRequiresCredentials(false);
} else {
cnx.getServer().setRequiresCredentials(true);
byte[] decrypted = ((ConnectionImpl) cnx).getHandShake().decryptBytes(bytes);
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(decrypted));
userId = dis.readLong();
}
if (this.needsServerLocation) {
return new Object[] {cnx.getServer(), userId};
} else {
return userId;
}
} else if (msgType == MessageType.EXCEPTION) {
Object result = part.getObject();
String s = "While performing a remote authenticate";
if (result instanceof AuthenticationFailedException) {
final AuthenticationFailedException afe = (AuthenticationFailedException) result;
if ("REPLY_REFUSED".equals(afe.getMessage())) {
throw new AuthenticationFailedException(s, afe.getCause());
} else {
throw new AuthenticationFailedException(s, afe);
}
} else if (result instanceof AuthenticationRequiredException) {
throw new AuthenticationRequiredException(s, (AuthenticationRequiredException) result);
} else if (result instanceof NotAuthorizedException) {
throw new NotAuthorizedException(s, (NotAuthorizedException) result);
} else {
throw new ServerOperationException(s, (Throwable) result);
}
// Get the exception toString part.
// This was added for c++ thin client and not used in java
// Part exceptionToStringPart = msg.getPart(1);
} else if (isErrorResponse(msgType)) {
throw new ServerOperationException(part.getString());
} else {
throw new InternalGemFireError("Unexpected message type " + MessageType.getString(msgType));
}
}