GroveEngine/include/grove/JsonDataNode.h
StillHammer d785ca7f6d feat: Add DataNode typed setters and Scenario 12 integration test
Add typed property setters (setInt, setString, setBool, setDouble) to
IDataNode interface for symmetric read/write API. Implement loadConfigFile
and loadDataDirectory methods in JsonDataTree for granular loading.

Create comprehensive test_12_datanode covering:
- Typed setters/getters with read-only enforcement
- Data and tree hash change detection
- Property-based queries (predicates)
- Pattern matching with wildcards
- Type-safe defaults

All 6 tests passing successfully.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 16:14:28 +08:00

115 lines
4.4 KiB
C++

#pragma once
#include "IDataNode.h"
#include "JsonDataValue.h"
#include <nlohmann/json.hpp>
#include <string>
#include <vector>
#include <memory>
#include <map>
#include <functional>
namespace grove {
using json = nlohmann::json;
/**
* @brief Concrete implementation of IDataNode backed by JSON
*
* Represents a node in the hierarchical data tree. Can have:
* - Children nodes (map of name -> node)
* - Own data (JSON value)
* - Path in the tree for identification
*/
class JsonDataNode : public IDataNode {
public:
/**
* @brief Create a node with name and optional data
* @param name Node name
* @param data Optional JSON data for this node
* @param parent Optional parent node (for path tracking)
* @param readOnly Whether this node is read-only (for config/)
*/
JsonDataNode(const std::string& name,
const json& data = json::object(),
JsonDataNode* parent = nullptr,
bool readOnly = false);
virtual ~JsonDataNode() = default;
// Tree navigation
std::unique_ptr<IDataNode> getChild(const std::string& name) override;
std::vector<std::string> getChildNames() override;
bool hasChildren() override;
// Exact search in children
std::vector<IDataNode*> getChildrenByName(const std::string& name) override;
bool hasChildrenByName(const std::string& name) const override;
IDataNode* getFirstChildByName(const std::string& name) override;
// Pattern matching search
std::vector<IDataNode*> getChildrenByNameMatch(const std::string& pattern) override;
bool hasChildrenByNameMatch(const std::string& pattern) const override;
IDataNode* getFirstChildByNameMatch(const std::string& pattern) override;
// Query by properties
std::vector<IDataNode*> queryByProperty(const std::string& propName,
const std::function<bool(const IDataValue&)>& predicate) override;
// Node's own data
std::unique_ptr<IDataValue> getData() const override;
bool hasData() const override;
void setData(std::unique_ptr<IDataValue> data) override;
// Typed data access
std::string getString(const std::string& name, const std::string& defaultValue = "") const override;
int getInt(const std::string& name, int defaultValue = 0) const override;
double getDouble(const std::string& name, double defaultValue = 0.0) const override;
bool getBool(const std::string& name, bool defaultValue = false) const override;
bool hasProperty(const std::string& name) const override;
// Typed data modification
void setString(const std::string& name, const std::string& value) override;
void setInt(const std::string& name, int value) override;
void setDouble(const std::string& name, double value) override;
void setBool(const std::string& name, bool value) override;
// Hash system
std::string getDataHash() override;
std::string getTreeHash() override;
std::string getSubtreeHash(const std::string& childPath) override;
// Metadata
std::string getPath() const override;
std::string getName() const override;
std::string getNodeType() const override;
// Tree modification
void setChild(const std::string& name, std::unique_ptr<IDataNode> node) override;
bool removeChild(const std::string& name) override;
void clearChildren() override;
// Direct JSON access (for internal use by JsonDataTree)
const json& getJsonData() const { return m_data; }
json& getJsonData() { return m_data; }
const std::map<std::string, std::unique_ptr<JsonDataNode>>& getChildren() const { return m_children; }
private:
std::string m_name;
json m_data;
JsonDataNode* m_parent;
bool m_readOnly;
std::map<std::string, std::unique_ptr<JsonDataNode>> m_children;
// Helper methods
bool matchesPattern(const std::string& text, const std::string& pattern) const;
void collectMatchingNodes(const std::string& pattern, std::vector<IDataNode*>& results);
void collectNodesByProperty(const std::string& propName,
const std::function<bool(const IDataValue&)>& predicate,
std::vector<IDataNode*>& results);
std::string computeHash(const std::string& input) const;
void checkReadOnly() const;
};
} // namespace grove