static void toHexString(String header, ByteBuffer buf) {
sb.delete(0, sb.length());
for (int index = 0; index < buf.limit(); index++) {
String hex = Integer.toHexString(0x0100 + (buf.get(index) & 0x00FF)).substring(1);
sb.append((hex.length() < 2 ? "0" : "") + hex + " ");
}
LOG.debug(
"hex->"
+ header
+ ": position,limit,capacity "
+ buf.position()
+ ","
+ buf.limit()
+ ","
+ buf.capacity());
LOG.debug("hex->" + sb.toString());
}
void isReadable(SelectionKey k) {
EventableChannel ec = (EventableChannel) k.attachment();
long b = ec.getBinding();
if (ec.isWatchOnly()) {
if (ec.isNotifyReadable()) eventCallback(b, EM_CONNECTION_NOTIFY_READABLE, null);
} else {
myReadBuffer.clear();
try {
ec.readInboundData(myReadBuffer);
myReadBuffer.flip();
if (myReadBuffer.limit() > 0) {
if (ProxyConnections != null) {
EventableChannel target = ProxyConnections.get(b);
if (target != null) {
ByteBuffer myWriteBuffer = ByteBuffer.allocate(myReadBuffer.limit());
myWriteBuffer.put(myReadBuffer);
myWriteBuffer.flip();
target.scheduleOutboundData(myWriteBuffer);
} else {
eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
}
} else {
eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
}
}
} catch (IOException e) {
UnboundConnections.add(b);
}
}
}
static void printBBInfo(ByteBuffer buf) {
LOG.debug(
"Info : position,limit,capacity "
+ buf.position()
+ ","
+ buf.limit()
+ ","
+ buf.capacity());
}
void isReadable(SelectionKey k) {
EventableChannel ec = (EventableChannel) k.attachment();
long b = ec.getBinding();
if (ec.isWatchOnly()) {
if (ec.isNotifyReadable()) eventCallback(b, EM_CONNECTION_NOTIFY_READABLE, null);
} else {
myReadBuffer.clear();
try {
ec.readInboundData(myReadBuffer);
myReadBuffer.flip();
if (myReadBuffer.limit() > 0) eventCallback(b, EM_CONNECTION_READ, myReadBuffer);
} catch (IOException e) {
UnboundConnections.add(b);
}
}
}
private synchronized DBMessage go(DBMessage msg, ByteDecoder decoder) throws IOException {
if (_sock == null) _open();
{
ByteBuffer out = msg.prepare();
while (out.remaining() > 0) _sock.write(out);
}
if (_pool != null) _pool._everWorked = true;
if (decoder == null) return null;
ByteBuffer response = decoder._buf;
if (response.position() != 0) throw new IllegalArgumentException();
int read = 0;
while (read < DBMessage.HEADER_LENGTH) read += _read(response);
int len = response.getInt(0);
if (len <= DBMessage.HEADER_LENGTH)
throw new IllegalArgumentException("db sent invalid length: " + len);
if (len > response.capacity())
throw new IllegalArgumentException(
"db message size is too big (" + len + ") " + "max is (" + response.capacity() + ")");
response.limit(len);
while (read < len) read += _read(response);
if (read != len) throw new RuntimeException("something is wrong");
response.flip();
return new DBMessage(response);
}
private void readMessage(SelectionKey sk, SocketChannel readChannel, TcpAddress incomingAddress)
throws IOException {
// note that socket has been used
SocketEntry entry = (SocketEntry) sockets.get(incomingAddress);
if (entry != null) {
entry.used();
ByteBuffer readBuffer = entry.getReadBuffer();
if (readBuffer != null) {
readChannel.read(readBuffer);
if (readBuffer.hasRemaining()) {
readChannel.register(selector, SelectionKey.OP_READ, entry);
} else {
dispatchMessage(incomingAddress, readBuffer, readBuffer.capacity());
}
return;
}
}
ByteBuffer byteBuffer = ByteBuffer.wrap(buf);
byteBuffer.limit(messageLengthDecoder.getMinHeaderLength());
long bytesRead = readChannel.read(byteBuffer);
if (logger.isDebugEnabled()) {
logger.debug("Reading header " + bytesRead + " bytes from " + incomingAddress);
}
MessageLength messageLength = new MessageLength(0, Integer.MIN_VALUE);
if (bytesRead == messageLengthDecoder.getMinHeaderLength()) {
messageLength = messageLengthDecoder.getMessageLength(ByteBuffer.wrap(buf));
if (logger.isDebugEnabled()) {
logger.debug("Message length is " + messageLength);
}
if ((messageLength.getMessageLength() > getMaxInboundMessageSize())
|| (messageLength.getMessageLength() <= 0)) {
logger.error(
"Received message length "
+ messageLength
+ " is greater than inboundBufferSize "
+ getMaxInboundMessageSize());
synchronized (entry) {
entry.getSocket().close();
logger.info("Socket to " + entry.getPeerAddress() + " closed due to an error");
}
} else {
byteBuffer.limit(messageLength.getMessageLength());
bytesRead += readChannel.read(byteBuffer);
if (bytesRead == messageLength.getMessageLength()) {
dispatchMessage(incomingAddress, byteBuffer, bytesRead);
} else {
byte[] message = new byte[byteBuffer.limit()];
byteBuffer.flip();
byteBuffer.get(message, 0, byteBuffer.limit() - byteBuffer.remaining());
entry.setReadBuffer(ByteBuffer.wrap(message));
}
readChannel.register(selector, SelectionKey.OP_READ, entry);
}
} else if (bytesRead < 0) {
logger.debug("Socket closed remotely");
sk.cancel();
readChannel.close();
TransportStateEvent e =
new TransportStateEvent(
DefaultTcpTransportMapping.this,
incomingAddress,
TransportStateEvent.STATE_DISCONNECTED_REMOTELY,
null);
fireConnectionStateChanged(e);
}
}
