Receive delimited protobuf message in Java

gistfile1.java

	private byte readByte() {
		ByteBuffer byteBuffer = ByteBuffer.allocate(1);
		timeout.start("Timed out during protocol buffers message parsing");
		try {
			int bytesRead = 0;
			while(bytesRead==0)
				bytesRead+=client.read(byteBuffer);
		} catch (IOException e) {
			//if (running) testMenu.createErrorDialog("Error", "Error parsing protobuf message", null);
			return 0;
		}
		if(timeout != null)
			timeout.stop();
		return byteBuffer.get(0);
	}
	public int readRawVarint32() {
		byte bite = readByte();
		int result = bite & 0x7f;
		int recv_bytes = 1;
		while ((bite & 0x80)!=0){
			bite = readByte();
			if(bite<0){
				return 0;
			}
			recv_bytes++;
			result |= (bite & 0x7f) << 7*(recv_bytes-1);
			if ((bite & 0x80) == 0) {
				return result;
			}
		}
		return result;
	  }
	protected ByteBuffer readProtobufMessage(){
		ByteBuffer byteBuffer = ByteBuffer.allocate(BUFFER_SIZE);
		try {
			//read varint32 delimiter
			int delim = readRawVarint32();
		
			//use delimiter to read the rest of the message (handle partial recvs)
			int bytesRead = 0;
			timeout.start("Timed out during protocol buffers message parsing");
			while (bytesRead < delim && running) {
				bytesRead += client.read(byteBuffer);
			}
		} catch (IOException e) {
			//if (running) testMenu.createErrorDialog("Error", "Error parsing protobuf message", null);
			return null;
		}
		if (timeout != null && timeout.stop()) return null;

		return running ? byteBuffer : null;
	}