YamlConfigMgr.h

// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
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// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#pragma once

#include "ConfigMgr.h"
#include "ConfigNode.h"
#include "utils/Error.h"

#include <string>
#include <yaml-cpp/yaml.h>

namespace zilliz {
namespace milvus {
namespace server {

class YamlConfigMgr : public ConfigMgr {
 public:
    virtual ErrorCode LoadConfigFile(const std::string &filename);
    virtual void Print() const;
    virtual std::string DumpString() const;

    virtual const ConfigNode &GetRootNode() const;
    virtual ConfigNode &GetRootNode();

 private:
    bool SetConfigValue(const YAML::Node &node,
                        const std::string &key,
                        ConfigNode &config);

    bool SetChildConfig(const YAML::Node &node,
                        const std::string &name,
                        ConfigNode &config);

    bool
    SetSequence(const YAML::Node &node,
                const std::string &child_name,
                ConfigNode &config);

    void LoadConfigNode(const YAML::Node &node, ConfigNode &config);

 private:
    YAML::Node node_;
    ConfigNode config_;
};

} // namespace server
} // namespace milvus
} // namespace zilliz