[CAMEL-14679] Support DROP_ROOT_MODE in XStream JSON dataformat

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0
• Component/s: camel-xstream
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Peter Palaga
• Created: 06/Mar/20 16:58
• Updated: 19/Mar/20 12:02
• Resolved: 19/Mar/20 12:01

Description

It is currently not possible to configure org.apache.camel.dataformat.xstream.JsonDataFormat to produce standard JSON without the XStream specific root node.

XStream JSON with root node:

{"org.apache.camel.quarkus.component.xstream.it.PojoA\:{"name":"Joe"}}

Standard JSON:

{"name":"Joe"}

With plain Xstream this can be reached via (see https://x-stream.github.io/json-tutorial.html#json-dropping-root )

XStream xstream = new XStream(new JsonHierarchicalStreamDriver() {
    public HierarchicalStreamWriter createWriter(Writer writer) {
        return new JsonWriter(writer, JsonWriter.DROP_ROOT_MODE);
    }
});

But I have not found a way to configure the org.apache.camel.dataformat.xstream.JsonDataFormat in that way. So we probably need some change to allow this.