Examples with PlcList org.apache.plc4x.java.api.value.PlcList used on opensource projects

Example 1 with PlcList

use of org.apache.plc4x.java.api.value.PlcList in project plc4x by apache.

the class Plc4x2AdsProtocol method encodeWriteRequest.

private void encodeWriteRequest(PlcRequestContainer<InternalPlcRequest, InternalPlcResponse> msg, List<Object> out) throws PlcException {
    InternalPlcWriteRequest writeRequest = (InternalPlcWriteRequest) msg.getRequest();
    if (writeRequest.getFields().size() != 1) {
        throw new PlcProtocolException("Only one item supported");
    }
    PlcField field = writeRequest.getFields().get(0);
    if (field instanceof SymbolicAdsField) {
        DirectAdsField mappedField = fieldMapping.get(field);
        LOGGER.debug("Replacing {} with {}", field, mappedField);
        field = mappedField;
    }
    if (!(field instanceof DirectAdsField)) {
        throw new PlcProtocolException("PlcField not of type DirectAdsField: " + field.getClass());
    }
    DirectAdsField directAdsField = (DirectAdsField) field;
    Invoke invokeId = Invoke.of(correlationBuilder.incrementAndGet());
    IndexGroup indexGroup = IndexGroup.of(directAdsField.getIndexGroup());
    IndexOffset indexOffset = IndexOffset.of(directAdsField.getIndexOffset());
    Object[] plcValues;
    PlcValue plcValue = writeRequest.getPlcValues().get(0);
    if (plcValue instanceof PlcList) {
        plcValues = ((PlcList) plcValue).getList().toArray(new Object[0]);
    } else {
        plcValues = new Object[] { plcValue.getObject() };
    }
    byte[] bytes = encodeData(directAdsField.getAdsDataType(), plcValues);
    int bytesToBeWritten = bytes.length;
    int maxTheoreticalSize = directAdsField.getAdsDataType().getTargetByteSize() * directAdsField.getNumberOfElements();
    if (bytesToBeWritten > maxTheoreticalSize) {
        LOGGER.debug("Requested AdsDatatype {} is exceeded by number of bytes {}. Limit {}.", directAdsField.getAdsDataType(), bytesToBeWritten, maxTheoreticalSize);
        throw new PlcProtocolPayloadTooBigException("ADS", maxTheoreticalSize, bytesToBeWritten, plcValues);
    }
    Data data = Data.of(bytes);
    AmsPacket amsPacket = AdsWriteRequest.of(targetAmsNetId, targetAmsPort, sourceAmsNetId, sourceAmsPort, invokeId, indexGroup, indexOffset, data);
    LOGGER.debug("encoded write request {}", amsPacket);
    out.add(amsPacket);
    requests.put(invokeId.getAsLong(), msg);
}