GH-4251 Add the capability to parse required variables from templates to TemplateRenderer
#4252
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…TemplateRenderer` to parse the required variables from the template. Signed-off-by: Sun Yuhan <sunyuhan1998@users.noreply.github.com>
# Conflicts: # spring-ai-model/src/test/java/org/springframework/ai/chat/prompt/SystemPromptTemplateTests.java
Signed-off-by: Sun Yuhan <sunyuhan1998@users.noreply.github.com>
Signed-off-by: Sun Yuhan <sunyuhan1998@users.noreply.github.com>
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As mentioned in the issue,
TemplateRenderercurrently only supports rendering templates. The ability to also parse and extract the required variables from a given template would be highly beneficial, especially for proactively validating template correctness. This PR implements that capability.Specifically, it:
Adds a
getRequiredVariablesmethod toTemplateRendererto extract the variable names required by the template;Includes corresponding unit tests to ensure correctness and stability.
Fixes #4251