Package com.alibaba.cloud.ai.graph.agent.interceptor.modelfallback

Class ModelFallbackInterceptor

java.lang.Object

com.alibaba.cloud.ai.graph.agent.interceptor.ModelInterceptor

com.alibaba.cloud.ai.graph.agent.interceptor.modelfallback.ModelFallbackInterceptor

All Implemented Interfaces:

Interceptor

public class ModelFallbackInterceptor
extends ModelInterceptor

Automatic fallback to alternative models on errors. Retries failed model calls with alternative models in sequence until success or all models exhausted. Example: ModelFallbackInterceptor interceptor = ModelFallbackInterceptor.builder() .addFallbackModel(gpt4oMiniModel) .addFallbackModel(claude35SonnetModel) .build();

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ModelFallbackInterceptor.Builder

Method Summary

Modifier and Type	Method	Description
static ModelFallbackInterceptor.Builder	builder()
String	getName()
ModelResponse	interceptModel(ModelRequest request, ModelCallHandler handler)	Wrap a model call with custom logic.

Methods inherited from class com.alibaba.cloud.ai.graph.agent.interceptor.ModelInterceptor

getTools

Methods inherited from class java.lang.Object

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

Method Details

builder

public static ModelFallbackInterceptor.Builder builder()

interceptModel

public ModelResponse interceptModel(ModelRequest request,
 ModelCallHandler handler)

Description copied from class: ModelInterceptor

Wrap a model call with custom logic. Implementations can: - Modify the request before calling the handler - Call the handler multiple times (retry logic) - Modify the response after handler returns - Handle exceptions and provide fallbacks

Specified by:

interceptModel in class ModelInterceptor

Parameters:

request - The model request

handler - The next handler in the chain (or base handler)

Returns:

The model response

getName

public String getName()