ConfigNode.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
//
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// software distributed under the License is distributed on an
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// specific language governing permissions and limitations
// under the License.

#pragma once

#include <vector>
#include <string>
#include <map>

namespace zilliz {
namespace milvus {
namespace server {

class ConfigNode;
typedef std::vector<ConfigNode> ConfigNodeArr;

class ConfigNode {
 public:
    void Combine(const ConfigNode &target);

    //key/value pair config
    void SetValue(const std::string &key, const std::string &value);

    std::string GetValue(const std::string &param_key, const std::string &default_val = "") const;
    bool GetBoolValue(const std::string &param_key, bool default_val = false) const;
    int32_t GetInt32Value(const std::string &param_key, int32_t default_val = 0) const;
    int64_t GetInt64Value(const std::string &param_key, int64_t default_val = 0) const;
    float GetFloatValue(const std::string &param_key, float default_val = 0.0) const;
    double GetDoubleValue(const std::string &param_key, double default_val = 0.0) const;

    const std::map<std::string, std::string> &GetConfig() const;
    void ClearConfig();

    //key/object config
    void AddChild(const std::string &type_name, const ConfigNode &config);
    ConfigNode GetChild(const std::string &type_name) const;
    ConfigNode &GetChild(const std::string &type_name);
    void GetChildren(ConfigNodeArr &arr) const;

    const std::map<std::string, ConfigNode> &GetChildren() const;
    void ClearChildren();

    //key/sequence config
    void AddSequenceItem(const std::string &key, const std::string &item);
    std::vector<std::string> GetSequence(const std::string &key) const;

    const std::map<std::string, std::vector<std::string> > &GetSequences() const;
    void ClearSequences();

    void PrintAll(const std::string &prefix = "") const;
    std::string DumpString(const std::string &prefix = "") const;

 private:
    std::map<std::string, std::string> config_;
    std::map<std::string, ConfigNode> children_;
    std::map<std::string, std::vector<std::string> > sequences_;
};

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