Serializing to binary with Ignition SDK

Ignition
,
1

Hey, I’m trying to serialize ScriptConfig objects to the data.bin files that Ignition 8.1 uses for gateway events.

At the top level, this snippet takes the formed object and returns a byte array.

    public static byte [] serialize(JsonNode root){

        XMLSerializer xmlSerializer = new XMLSerializer();
        xmlSerializer.initDefaults();

        //Root Attributes
        ScriptConfigSerializer.addRootAttributes(root, xmlSerializer);

        //Script Config
        ScriptConfig scriptConfig = ScriptConfigSerializer.serializeScriptConfig(root);

        try {
            return xmlSerializer.serializeBinary(scriptConfig, true);
        } catch (SerializationException e) {
            throw new RuntimeException(e);
        }
    }

When I write this to the filesystem, Ignition gives me the following error:

SerializationException: Unexpected parsing error during XML deserialization.
caused by org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Content is not allowed in prolog.

Also, when I try to deserialize the output file, I get this error that the data is not binary encoded serialized data.

Exception in thread "main" java.lang.RuntimeException: com.inductiveautomation.ignition.common.xmlserialization.SerializationException: Data is not binary encoded serialized data. magic number is wrong.

I looked into possibly adding a SerializationDelegatebut it didn’t seem like any of them were the correct type.

Any help would be greatly appreciated!

2

I'm not sure what these classes are doing, but your snippet basically matches what the designer is doing internally. Are you sure your ScriptConfig object is fully formed? What is the actual byte content you end up with?