private void readControlFrame() throws IOException {
Buffer buffer = null;
if (frameBytesRead < frameLength) {
buffer = new Buffer();
if (isClient) {
source.readFully(buffer, frameLength);
} else {
while (frameBytesRead < frameLength) {
int toRead = (int) Math.min(frameLength - frameBytesRead, maskBuffer.length);
int read = source.read(maskBuffer, 0, toRead);
if (read == -1) throw new EOFException();
toggleMask(maskBuffer, read, maskKey, frameBytesRead);
buffer.write(maskBuffer, 0, read);
frameBytesRead += read;
}
}
}
switch (opcode) {
case OPCODE_CONTROL_PING:
frameCallback.onPing(buffer);
break;
case OPCODE_CONTROL_PONG:
frameCallback.onPong(buffer);
break;
case OPCODE_CONTROL_CLOSE:
int code = 1000;
String reason = "";
if (buffer != null) {
long bufferSize = buffer.size();
if (bufferSize == 1) {
throw new ProtocolException("Malformed close payload length of 1.");
} else if (bufferSize != 0) {
code = buffer.readShort();
validateCloseCode(code, false);
reason = buffer.readUtf8();
}
}
frameCallback.onClose(code, reason);
closed = true;
break;
default:
throw new ProtocolException("Unknown control opcode: " + toHexString(opcode));
}
}
