feat: add new GenAI SDK count tokens samples #10145
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Summary of Changes
Hello @jdomingr, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
I've added new sample code to the GenAI SDK to demonstrate different ways of counting tokens. Specifically, this PR introduces samples for computing tokens directly from text input and for extracting token counts from the usage metadata of a generated content response. This enhances the existing token counting examples and provides more comprehensive guidance for developers.
Highlights
- New Sample: Compute Tokens from Text: I've introduced CountTokensComputeWithText.java which shows how to use the computeTokens method to get detailed token information (like token IDs and actual token strings) for a given text input.
- New Sample: Count Tokens from Response Metadata: I've added CountTokensResponseWithText.java to illustrate how to retrieve prompt and candidate token counts from the usageMetadata field of a GenerateContentResponse.
- Updated Tests: I've updated CountTokensIT.java with new integration tests to ensure the correctness and functionality of the newly added token counting samples.
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Code Review
This pull request introduces new samples for counting tokens with the GenAI SDK, covering computeTokens and generateContent API calls. The changes include two new sample files and corresponding integration tests. Additionally, an existing sample file has been cleaned up by removing unused imports. The new samples are a valuable addition. My review includes suggestions to improve code readability in one of the new samples and to enhance the robustness of a new test case.
genai/snippets/src/main/java/genai/counttokens/CountTokensComputeWithText.java
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genai/snippets/src/test/java/genai/counttokens/CountTokensIT.java
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Description
Add new count tokens samples:
Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.
Checklist
mvn clean verifyrequiredmvn -P lint checkstyle:checkrequiredmvn -P lint clean compile pmd:cpd-check spotbugs:checkadvisory only