// PD_TRACE_DECLARE_FUNCTION ( SDB__MTHSELECTOR__RESORTOBJ, "_mthSelector::_resortObj" )
INT32 _mthSelector::_resortObj( const bson::BSONObj &pattern,
const bson::BSONObj &src,
bson::BSONObj &obj )
{
INT32 rc = SDB_OK ;
PD_TRACE_ENTRY( SDB__MTHSELECTOR__RESORTOBJ ) ;
BSONObjBuilder builder ;
hash_map fMap ;
BSONObjIterator i( src ) ;
while ( i.more() )
{
BSONElement e = i.next() ;
fMap.insert( std::make_pair( e.fieldName(), e ) ) ;
}
BSONObjIterator j( pattern ) ;
while ( j.more() )
{
BSONElement e = j.next() ;
hash_map::const_iterator itr = fMap.find( e.fieldName() ) ;
if ( fMap.end() != itr )
{
builder.append( itr->second ) ;
}
else
{
PD_LOG( PDWARNING, "field[%s] in pattern does not exist in src[%s]",
e.fieldName(), src.toString( FALSE, TRUE ).c_str() ) ;
}
}
obj = builder.obj() ;
PD_TRACE_EXITRC( SDB__MTHSELECTOR__RESORTOBJ, rc ) ;
return rc ;
}
INT32 utilJsonFile::write( ossFile& file, bson::BSONObj& data )
{
INT32 rc = SDB_OK ;
SDB_ASSERT( file.isOpened(), "file must be opened" ) ;
string json = data.toString() ;
rc = file.truncate( 0 ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to truncate json file, rc=%d", rc );
goto error ;
}
rc = file.seekAndWriteN( 0, json.c_str(), json.size() ) ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to write json to file, " \
"json size=%d, rc=%d",
json.size(), rc );
goto error ;
}
rc = file.sync() ;
if ( SDB_OK != rc )
{
PD_LOG( PDERROR, "Failed to sync json file, rc=%d", rc ) ;
goto error ;
}
done:
return rc ;
error:
goto done ;
}
