attrdict.cpp

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#include 	<stdio.h>
#include 	<string.h>
#include	"AttrDict.h"
#include	"Logger.h"

//AttrMap		AttrDict::_attributes=(Attribute*)NULL;
//initialize static varible outside construction

bool	AttrDict::_initialized=false;   //it will be initialized when program starts 
AttrMap	AttrDict::_attributes;

AttrDict::AttrDict()
{
}

AttrDict::~AttrDict()
{
	//NOTE: have to delete elements in _attributes
	AttrMap::iterator iter = _attributes.begin();
	while(iter != _attributes.end())	
	{
		delete	iter->second;
		iter->second=NULL;
		iter++;
	}
	//NOTE: have to clear 
	_attributes.clear();	
}

int	AttrDict::init(char*	dictFile)
{
	if(!_initialized)
		return	parseDict(dictFile);
	return	0;
}

Attribute*	AttrDict::getAttrByName(String	name)
{
	//cwz note: iterator is a poiter that point to one attribute

	AttrMap::iterator	itor;	
	
	for(itor=_attributes.begin(); itor!=_attributes.end(); itor++)	
	{
		if((itor->second)->getName() == name)
			return	itor->second;
	}	
	return	(Attribute*)NULL;
}

Attribute*	AttrDict::getAttrByAttr(Octet	attr)
{
	AttrMap::iterator	itor;	
	itor=_attributes.find(attr);
	if(itor != _attributes.end())
		return itor->second;

	return	(Attribute*)NULL;
}

int	AttrDict::parseDict(char* fileName)
{
	FILE* fp;
	char	s_attribute[30];
	char	s_attrName[30];
	char	s_attr[30];
	char	s_attrValue[30];	
	char	buffer[2048];
	Octet	attr;
	VType	valueType;
	
	if((fp=fopen(fileName, "r")) == NULL)	
	{
		Logger::log(L_ERR, "parseDict:Open attribute dict file error!");
		return -1;
	}	
	
	int 	lineNo=0;	
	while(fgets(buffer, sizeof(buffer), fp) != NULL)
	{
		lineNo++;
		//skip extract simbol
		if(*buffer == '#' || *buffer == '\0' || *buffer == '\n')
			continue;
		if((sscanf(buffer, "%s%s%s%s", s_attribute, s_attrName, s_attr, 
			s_attrValue)) < 4)	
		{
			Logger::log(L_ERR, "%s: Invalid attribute on line %d 
				of dictionary\n", fileName, lineNo);	
			return	-1;
		}
		//sscanf(s_attr, "%i", &attr);
		attr=atoi(s_attr);
		if(attr > 255)	
		{
			Logger::log(L_ERR, "%s: Attribute %s > 255  on line %d
                                of dictionary\n", fileName, s_attrName, lineNo);
			return -1;
		}	
		if((strcmp(s_attrValue, "String")) == 0)	
			valueType=VString;	
		else if((strcmp(s_attrValue, "Octet")) == 0)	
			valueType=VOctet;	
		else if((strcmp(s_attrValue, "Octets")) == 0)	
			valueType=VOctets;	
		else if((strcmp(s_attrValue, "Integer")) == 0)	
			valueType=VUInt;	
		else if((strcmp(s_attrValue, "Short")) == 0)	
			valueType=VUShort;	

		//new pair		
		Attribute* attribute=new Attribute(attr, s_attrName, valueType);	
		//help me ???
		_attributes.insert(make_pair(attr, attribute));	
	}

	fclose(fp);
	_initialized=true;
	return 0;
}
//test
int	AttrDict::attrPrint()
{
	AttrMap::iterator	itor;
	//test
	/*
	if(_attributes.begin() == _attributes.end())
		return 0;
	else 
		return 1;
	*/
	//end test
 	for(itor=_attributes.begin(); itor!=_attributes.end(); itor++)
 	{
		Attribute* attribute=(*itor).second;
		String name=attribute->getName();
 	}
	/*
	itor = _attributes.find(5);
	printf("The name of 5 element is %s\n", ((itor->second)->getName()).c_str());
	*/
 	return  0;
}