components/assist_ranker/assist_ranker_service_impl.cc

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/assist_ranker/assist_ranker_service_impl.h"

#include "components/assist_ranker/binary_classifier_predictor.h"
#include "components/assist_ranker/ranker_model_loader_impl.h"
#include "net/url_request/url_request_context_getter.h"
#include "url/gurl.h"

namespace assist_ranker {

AssistRankerServiceImpl::AssistRankerServiceImpl(
    base::FilePath base_path,
    net::URLRequestContextGetter* url_request_context_getter)
    : url_request_context_getter_(url_request_context_getter),
      base_path_(std::move(base_path)) {}

AssistRankerServiceImpl::~AssistRankerServiceImpl() {}

std::unique_ptr<BinaryClassifierPredictor>
AssistRankerServiceImpl::FetchBinaryClassifierPredictor(
    GURL model_url,
    const std::string& model_filename,
    const std::string& uma_prefix) {
  DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
  return BinaryClassifierPredictor::Create(url_request_context_getter_.get(),
                                           GetModelPath(model_filename),
                                           model_url, uma_prefix);
}

base::FilePath AssistRankerServiceImpl::GetModelPath(
    const std::string& model_filename) {
  if (base_path_.empty())
    return base::FilePath();
  return base_path_.AppendASCII(model_filename);
}

}  // namespace assist_ranker