Class GeminiUtil

java.lang.Object

com.google.adk.models.GeminiUtil

public final class GeminiUtil
extends Object

Request / Response utilities for Gemini.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CONTINUE_OUTPUT_MESSAGE

Method Summary

Modifier and Type	Method	Description
static String	getTextFromLlmResponse(LlmResponse llmResponse)	Extracts text content from the first part of an LlmResponse, if available.
static LlmRequest	prepareGenenerateContentRequest(LlmRequest llmRequest, boolean sanitize)	Prepares an LlmRequest for the GenerateContent API.
static LlmRequest	sanitizeRequestForGeminiApi(LlmRequest llmRequest)	Sanitizes the request to ensure it is compatible with the Gemini API backend.
static boolean	shouldEmitAccumulatedText(LlmResponse currentLlmResponse)	Determines if accumulated text should be emitted based on the current LlmResponse.
static List<com.google.genai.types.Content>	stripThoughts(List<com.google.genai.types.Content> originalContents)	Removes any `Part` that contains only a `thought` from the content list.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

CONTINUE_OUTPUT_MESSAGE

public static final String CONTINUE_OUTPUT_MESSAGE

See Also:

• Constant Field Values

Method Details

prepareGenenerateContentRequest

public static LlmRequest prepareGenenerateContentRequest(LlmRequest llmRequest,
 boolean sanitize)

Prepares an LlmRequest for the GenerateContent API.

This method can optionally sanitize the request and ensures that the last content part is from the user to prompt a model response. It also strips out any parts marked as "thoughts".

Parameters:

llmRequest - The original LlmRequest.

sanitize - Whether to sanitize the request to be compatible with the Gemini API backend.

Returns:

The prepared LlmRequest.

sanitizeRequestForGeminiApi

public static LlmRequest sanitizeRequestForGeminiApi(LlmRequest llmRequest)

Sanitizes the request to ensure it is compatible with the Gemini API backend. Required as there are some parameters that if included in the request will raise a runtime error if sent to the wrong backend (e.g. image names only work on Vertex AI).

Parameters:

llmRequest - The request to sanitize.

Returns:

The sanitized request.

getTextFromLlmResponse

public static String getTextFromLlmResponse(LlmResponse llmResponse)

Extracts text content from the first part of an LlmResponse, if available.

Parameters:

llmResponse - The LlmResponse to extract text from.

Returns:

The text content, or an empty string if not found.

shouldEmitAccumulatedText

public static boolean shouldEmitAccumulatedText(LlmResponse currentLlmResponse)

Determines if accumulated text should be emitted based on the current LlmResponse. We flush if current response is not a text continuation (e.g., no content, no parts, or the first part is not inline_data, meaning it's something else or just empty, thereby warranting a flush of preceding text).

Parameters:

currentLlmResponse - The current LlmResponse being processed.

Returns:

True if accumulated text should be emitted, false otherwise.

stripThoughts

public static List<com.google.genai.types.Content> stripThoughts(List<com.google.genai.types.Content> originalContents)

Removes any `Part` that contains only a `thought` from the content list.