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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.llm.clients;
import ai.vespa.llm.InferenceParameters;
import ai.vespa.llm.LanguageModel;
import com.yahoo.api.annotations.Beta;
import com.yahoo.component.annotation.Inject;
import com.yahoo.container.jdisc.secretstore.SecretStore;
import java.util.logging.Logger;
/**
* Base class for language models that can be configured with config definitions.
*
* @author lesters
*/
@Beta
public abstract class ConfigurableLanguageModel implements LanguageModel {
private static Logger log = Logger.getLogger(ConfigurableLanguageModel.class.getName());
private final String apiKey;
private final String endpoint;
public ConfigurableLanguageModel() {
this.apiKey = null;
this.endpoint = null;
}
@Inject
public ConfigurableLanguageModel(LlmClientConfig config, SecretStore secretStore) {
this.apiKey = findApiKeyInSecretStore(config.apiKeySecretName(), secretStore);
this.endpoint = config.endpoint();
}
private static String findApiKeyInSecretStore(String property, SecretStore secretStore) {
String apiKey = "";
if (property != null && ! property.isEmpty()) {
try {
apiKey = secretStore.getSecret(property);
} catch (UnsupportedOperationException e) {
// Secret store is not available - silently ignore this
} catch (Exception e) {
log.warning("Secret store look up failed: " + e.getMessage() + "\n" +
"Will expect API key in request header");
}
}
return apiKey;
}
protected String getApiKey(InferenceParameters params) {
return params.getApiKey().orElse(null);
}
/**
* Set the API key as retrieved from secret store if it is not already set
*/
protected void setApiKey(InferenceParameters params) {
if (params.getApiKey().isEmpty() && apiKey != null) {
params.setApiKey(apiKey);
}
}
protected String getEndpoint() {
return endpoint;
}
protected void setEndpoint(InferenceParameters params) {
if (endpoint != null && ! endpoint.isEmpty()) {
params.setEndpoint(endpoint);
}
}
}
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