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TreeStorageNode.h
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TreeStorageNode.h
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/*
* Copyright (C) 2011-2012 Me and My Shadow
*
* This file is part of Me and My Shadow.
*
* Me and My Shadow is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Me and My Shadow is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Me and My Shadow. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TREESTORAGENODE_H
#define TREESTORAGENODE_H
#include "ITreeStorage.h"
#include <map>
#include <vector>
#include <string>
//This class is used to store data in a tree-structured way.
//Every (TreeStorage)Node has a vector with subNodes and every Node contains a hashmap with attributes.
class TreeStorageNode:public ITreeStorageBuilder,public ITreeStorageReader{
private:
//Iterator used to iterate the hashmap with attributes.
//Used by the methods getNextAttribute and getNextNode.
std::map<std::string,std::vector<std::string> >::iterator objAttrIterator;
public:
//Vector containing the subnodes of the TreeStorageNode.
std::vector<TreeStorageNode*> subNodes;
//String containing the name of the TreeStorageNode.
std::string name;
//Vector containing the value(s) of the TreeStorageNode.
std::vector<std::string> value;
//Hashmap containing the attributes of the TreeStorageNode.
std::map<std::string,std::vector<std::string> > attributes;
//Constructor.
TreeStorageNode(){}
//Destructor.
virtual ~TreeStorageNode();
//This method is used to destroy the TreeStorageNode.
//Also called when the deconstructor is called.
void destroy();
//Set the name of the TreeStorageNode.
//name: The name to give.
virtual bool setName(const std::string& name, const FilePosition& pos);
//Sets the parameter name to the name of the TreeStorageNode.
//name: The string to fill with the name;
virtual void getName(std::string& name);
//Set the value of the TreeStorageNode.
//value: The value to give.
virtual bool setValue(const std::vector<std::string>& value, const std::vector<FilePosition>& pos);
//Sets the parameter value to the value of the TreeStorageNode.
//value: The string to fill with the name;
virtual void getValue(std::vector<std::string>& value);
//Creates a new node in the TreeStorageNode.
//The new node will be added to the subnodes.
//Returns: a pointer to the new node.
virtual ITreeStorageBuilder* newNode();
//Creates a new attribute in the TreeStorageNode.
//The attribute will be added to the attributes map.
//name: The name for the new attribute.
//value: The value for the new attribute.
virtual bool newAttribute(const std::string& name, const std::vector<std::string>& value, const FilePosition& namePos, const std::vector<FilePosition>& valuePos);
//Method used for iterating through the attributes of the TreeStorageNode.
//pUserData: Pointer to the iterator.
//name: The string fill with the name of the attribute.
//value: Vector to fill with the value(s) of the attribute.
virtual void* getNextAttribute(void* pUserData,std::string& name,std::vector<std::string>& value);
//Method used for iterating through the subnodes of the TreeStorageNode.
//pUserData: Pointer to the iterator.
//obj: Pointer that will be pointed to the nextNode, if present.
virtual void* getNextNode(void* pUserData,ITreeStorageReader*& obj);
//Calculate the MD5 of node based on the data structure.
//places the message digest in md,
//which must have space for 16 bytes of output (or NULL).
unsigned char* calcMD5(unsigned char* md);
};
#endif

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