Add Context Support to Query in RetrievalAugmentationAdvisor

[magicgone-cn]

Currently, the Query object originalQuery in RetrievalAugmentationAdvisor only includes text and history fields. I wish to add context into originalQuery. By adding context support, downstream transformers and retrievers would be able to access more runtime information to enhance their processing capabilities.

RetrievalAugmentationAdvisor

public AdvisedRequest before(AdvisedRequest request) {
		Map<String, Object> context = new HashMap<>(request.adviseContext());

		// 0. Create a query from the user text, parameters, and conversation history.
		Query originalQuery = Query.builder()
			.text(new PromptTemplate(request.userText(), request.userParams()).render())
			.history(request.messages())
			.build();

		// 1. Transform original user query based on a chain of query transformers.
		Query transformedQuery = originalQuery;
		for (var queryTransformer : this.queryTransformers) {
			transformedQuery = queryTransformer.apply(transformedQuery);
		}
...
}