peerplays_migrated/libraries/db/object_database.cpp

/*
 * Copyright (c) 2015 Cryptonomex, Inc., and contributors.  All rights reserved.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#include <graphene/db/object_database.hpp>

#include <fc/io/raw.hpp>
#include <fc/container/flat.hpp>
#include <fc/uint128.hpp>

namespace graphene { namespace db {

object_database::object_database()
:_undo_db(*this)
{
   _index.resize(255);
   _undo_db.enable();
}

object_database::~object_database(){}

void object_database::close()
{
}

const object* object_database::find_object( object_id_type id )const
{
   return get_index(id.space(),id.type()).find( id );
}
const object& object_database::get_object( object_id_type id )const
{
   return get_index(id.space(),id.type()).get( id );
}

const index& object_database::get_index(uint8_t space_id, uint8_t type_id)const
{
   FC_ASSERT( _index.size() > space_id, "", ("space_id",space_id)("type_id",type_id)("index.size",_index.size()) );
   FC_ASSERT( _index[space_id].size() > type_id, "", ("space_id",space_id)("type_id",type_id)("index[space_id].size",_index[space_id].size()) );
   const auto& tmp = _index[space_id][type_id];
   FC_ASSERT( tmp );
   return *tmp;
}
index& object_database::get_mutable_index(uint8_t space_id, uint8_t type_id)
{
   FC_ASSERT( _index.size() > space_id, "", ("space_id",space_id)("type_id",type_id)("index.size",_index.size()) );
   FC_ASSERT( _index[space_id].size() > type_id , "", ("space_id",space_id)("type_id",type_id)("index[space_id].size",_index[space_id].size()) );
   const auto& idx = _index[space_id][type_id];
   FC_ASSERT( idx, "", ("space",space_id)("type",type_id) );
   return *idx;
}

void object_database::flush()
{
//   ilog("Save object_database in ${d}", ("d", _data_dir));
   for( uint32_t space = 0; space < _index.size(); ++space )
   {
      fc::create_directories( _data_dir / "object_database" / fc::to_string(space) );
      const auto types = _index[space].size();
      for( uint32_t type = 0; type  <  types; ++type )
         if( _index[space][type] )
            _index[space][type]->save( _data_dir / "object_database" / fc::to_string(space)/fc::to_string(type) );
   }
}

void object_database::wipe(const fc::path& data_dir)
{
   close();
   ilog("Wiping object database...");
   fc::remove_all(data_dir / "object_database");
   ilog("Done wiping object databse.");
}

void object_database::open(const fc::path& data_dir)
{ try {
   ilog("Opening object database from ${d} ...", ("d", data_dir));
   _data_dir = data_dir;
   for( uint32_t space = 0; space < _index.size(); ++space )
      for( uint32_t type = 0; type  < _index[space].size(); ++type )
         if( _index[space][type] )
            _index[space][type]->open( _data_dir / "object_database" / fc::to_string(space)/fc::to_string(type) );
   ilog( "Done opening object database." );

} FC_CAPTURE_AND_RETHROW( (data_dir) ) }


void object_database::pop_undo()
{ try {
   _undo_db.pop_commit();
} FC_CAPTURE_AND_RETHROW() }

void object_database::save_undo( const object& obj )
{
   _undo_db.on_modify( obj );
}

void object_database::save_undo_add( const object& obj )
{
   _undo_db.on_create( obj );
}

void object_database::save_undo_remove(const object& obj)
{
   _undo_db.on_remove( obj );
}

} } // namespace graphene::db