deserializePayload method

  1. @override
int deserializePayload(
  1. HistoricSampleBuilder builder,
  2. ByteData byteData,
  3. Endian endianness,
  4. int offset,
)
override

Call to deserialize only the payload, no header. The Builder is to allow passing the message to build into. returns a int with a serialized size

Implementation

@override
int deserializePayload(imc.HistoricSampleBuilder builder, ByteData byteData,
    Endian endianness, int offset) {
  var byteOffset = offset;

  // field sysId
  builder.sysId = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  // field priority
  builder.priority = byteData.getInt8(byteOffset);
  byteOffset += 1;
  // field x
  builder.x = byteData.getInt16(byteOffset, endianness);
  byteOffset += 2;
  // field y
  builder.y = byteData.getInt16(byteOffset, endianness);
  byteOffset += 2;
  // field z
  builder.z = byteData.getInt16(byteOffset, endianness);
  byteOffset += 2;
  // field t
  builder.t = byteData.getInt16(byteOffset, endianness);
  byteOffset += 2;
  // field sample
  var sampleSId = byteData.getUint16(byteOffset, endianness);
  byteOffset += 2;
  if (sampleSId == imc.ImcId.nullId) {
    builder.sample = null;
  } else {
    var pMsgBuilder = imc.messagesBuilders[
            imc.idsToMessages[sampleSId] ?? imc.ImcId.nullId.toString()]
        ?.call()
        .newInstance(builder);
    var pMsgSerializer = imc.messagesSerializers[
            imc.idsToMessages[sampleSId] ?? imc.ImcId.nullId.toString()]
        ?.call();
    if (pMsgBuilder != null && pMsgSerializer != null) {
      var mPSize = pMsgSerializer.deserializePayload(
          pMsgBuilder, byteData, endianness, byteOffset);
      byteOffset += mPSize;
      builder.sample = pMsgBuilder.build() as imc.ImcMessage?;
    }
  }

  return byteOffset - offset;
}