winix/core/dircontainer.cpp

/*
 * This file is a part of CMSLU -- Content Management System like Unix
 * and is not publicly distributed
 * 
 * Copyright (c) 2008-2009, Tomasz Sowa
 * All rights reserved.
 * 
 */
 
#include "dircontainer.h"
#include "log.h"


DirContainer::DirContainer()
{
	is_root = false;
}



DirContainer::Iterator DirContainer::GetRoot()
{
	if( !is_root )
		return table.end();
	
return root_iter;
}



DirContainer::Iterator DirContainer::Begin()
{
	return table.begin();	
}


DirContainer::Iterator DirContainer::End()
{
	return table.end();	
}


DirContainer::SizeType DirContainer::Size()
{
	return table.size();
}

bool DirContainer::Empty()
{
	return table.empty();
}



DirContainer::Iterator DirContainer::PushBack(const Item & item)
{
	if( item.parent_id == -1 && is_root )
	{
		log << log1 << "DirCont: more than one root dir - skipped, id: " << item.id << logend;
		return root_iter;
	}

	Iterator last_iter = table.insert(table.end(), item);
	
	if( item.parent_id == -1 )
	{
		is_root   = true;
		root_iter = last_iter;
	}

	log << log2 << "DirCont: added dir, url: " << item.url << ", id: " << item.id << ", parent_id: " << item.parent_id << logend;
	
	table_id.insert( std::make_pair(last_iter->id, last_iter) );
	table_parent.insert( std::make_pair(last_iter->parent_id, last_iter) );
	
	log << log3 << "DirCont: added indexes to dir, id: " << last_iter->id << ", parent_id: " << last_iter->parent_id << logend;
	
return last_iter;
}





void DirContainer::Clear()
{
	table.clear();	
	table_id.clear();
	table_parent.clear();
	is_root = false;
}




DirContainer::Iterator DirContainer::FindId(long id)
{
	TableId::iterator i = table_id.find(id);

	if( i == table_id.end() )
		return table.end();
		
return i->second;
}



DirContainer::ParentIterator DirContainer::ParentBegin()
{
	return table_parent.begin();
}



DirContainer::ParentIterator DirContainer::ParentEnd()
{
	return table_parent.end();	
}


DirContainer::ParentSizeType DirContainer::ParentSize()
{
	return table_parent.size();
}


bool DirContainer::ParentEmpty()
{
	return table_parent.empty();
}


DirContainer::ParentIterator DirContainer::FindFirstParent(long parent)
{
	ParentIterator i = table_parent.lower_bound(parent);
	
	if( i == table_parent.end() || i->first != parent )
		return table_parent.end();
	
return i;
}


DirContainer::ParentIterator DirContainer::NextParent(ParentIterator i)
{
	if( i == table_parent.end() )
		return table_parent.end();

	long parent = i->first;
	++i;
	
	if( i == table_parent.end() || i->first != parent )
		return table_parent.end();

return i;
}





bool DirContainer::DelById(long id)
{
	TableId::iterator i = table_id.find(id);
	
	if( i == table_id.end() )
	{
		log << log1 << "DirCont: delete: there is no directory with id: " << id << logend;
		return false;
	}

	long parent_id = i->second->parent_id;
	TableParent::iterator z = table_parent.lower_bound(parent_id);
	bool found = false;
	
	for( ; z != table_parent.end() && z->first == parent_id ; ++z )
	{
		if( z->second == i->second )
		{
			log << log2 << "DirCont: deleted directory id: " << id << ", url: " << i->second->url;
			
			if( i->second->parent_id == -1 )
			{
				log << log2 << " (root directory)";	
				is_root = false;
			}
			
			log << log2 << logend;
			
			table.erase(i->second);

			log << log3 << "DirCont: deleted indexes into directory id: " << id << logend;
			table_id.erase(i);	
			table_parent.erase(z);

			found = true;
			break;
		}
	}
	
	if( !found )
	{	
		log << log1 << "DirCont: can't find an index_parent into directory id: " << id << ", url: " << i->second->url << " (deleting skipped)" << logend;
		return false;
	}
	
	
return true;
}