private Open readOpen()

in protonj2/src/main/java/org/apache/qpid/protonj2/codec/decoders/transport/OpenTypeDecoder.java [79:142]
54 lines of code
16 McCabe index (conditional complexity)

    private Open readOpen(ProtonBuffer buffer, Decoder decoder, DecoderState state, ListTypeDecoder listDecoder) throws DecodeException {
        final Open open = new Open();

        @SuppressWarnings("unused")
        final int size = listDecoder.readSize(buffer, state);
        final int count = listDecoder.readCount(buffer, state);

        if (count < MIN_OPEN_LIST_ENTRIES) {
            throw new DecodeException("The container-id field cannot be omitted from the Open");
        }

        if (count > MAX_OPEN_LIST_ENTRIES) {
            throw new DecodeException("To many entries in Open list encoding: " + count);
        }

        for (int index = 0; index < count; ++index) {
            // Peek ahead and see if there is a null in the next slot, if so we don't call
            // the setter for that entry to ensure the returned type reflects the encoded
            // state in the modification entry.
            if (buffer.peekByte() == EncodingCodes.NULL) {
                if (index == 0) {
                    throw new DecodeException("The container-id field cannot be omitted from the Open");
                }

                buffer.advanceReadOffset(1);
                continue;
            }

            switch (index) {
                case 0:
                    open.setContainerId(decoder.readString(buffer, state));
                    break;
                case 1:
                    open.setHostname(decoder.readString(buffer, state));
                    break;
                case 2:
                    open.setMaxFrameSize(decoder.readUnsignedInteger(buffer, state, 0l));
                    break;
                case 3:
                    open.setChannelMax(decoder.readUnsignedShort(buffer, state, 0));
                    break;
                case 4:
                    open.setIdleTimeout(decoder.readUnsignedInteger(buffer, state, 0l));
                    break;
                case 5:
                    open.setOutgoingLocales(decoder.readMultiple(buffer, state, Symbol.class));
                    break;
                case 6:
                    open.setIncomingLocales(decoder.readMultiple(buffer, state, Symbol.class));
                    break;
                case 7:
                    open.setOfferedCapabilities(decoder.readMultiple(buffer, state, Symbol.class));
                    break;
                case 8:
                    open.setDesiredCapabilities(decoder.readMultiple(buffer, state, Symbol.class));
                    break;
                case 9:
                    open.setProperties(decoder.readMap(buffer, state));
                    break;
            }
        }

        return open;
    }