OpenAiEmbeddingModel failes to instantiate unless embedding-model-dimensions.properties is manually added to class path

[russdanner]

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Bug description
org.springframework.ai.embedding.AbstractEmbeddingModel function loadKnownModelDimensions is called statically to load a properties file classpath:/embedding/embedding-model-dimensions.properties that is not guaranteed to be in the classpath.

It should be possible to:

• Run the system on defaults without externally placing the properties file
• Change the location of the resource
• Override how this resource is defined.

Environment
SpringAI SNAPSHOT-1.0.0

Steps to reproduce
Attempt to instantiate OpenAiEmbeddingModel without manually placing the properties file in the class path.

Expected behavior
N/A

Minimal Complete Reproducible example

def embeddingOptions = OpenAiEmbeddingOptions.builder().withModel("text-embedding-ada-002").build()
def embeddingModel = new OpenAiEmbeddingModel(openAiApi, MetadataMode.EMBED, embeddingOptions)

[markpollack]

Perhaps this is related to how kotlin consumes the jars, but the file mentioned is in the resources directory of spring-ai-core so it should be resolved as your application has a dependency on that module.

The request to change the location or override is another feature that is worth to consider, but separate from the classpath issue.

Can you clarify?

Another option is that we just get rid of this file completely, then we make 1 call to the model to get the embedding value.

Balancing the cost of maintaining this file vs making an additional call to the model, I'd go with getting rid of the file.