private void modifyReplace()

in xdbm-partition/src/main/java/org/apache/directory/server/core/partition/impl/btree/AbstractBTreePartition.java [1608:1733]
93 lines of code
21 McCabe index (conditional complexity)

    private void modifyReplace( PartitionTxn partitionTxn, String id, Entry entry, Attribute mods ) 
        throws LdapException, IndexNotFoundException
    {
        if ( entry instanceof ClonedServerEntry )
        {
            throw new LdapOtherException( I18n.err( I18n.ERR_215_CANNOT_STORE_CLONED_SERVER_ENTRY ) );
        }

        String modsOid = schemaManager.getAttributeTypeRegistry().getOidByName( mods.getId() );
        AttributeType attributeType = mods.getAttributeType();

        // Special case for the ObjectClass index
        if ( attributeType.equals( objectClassAT ) )
        {
            // if the id exists in the index drop all existing attribute
            // value index entries and add new ones
            for ( Value value : entry.get( objectClassAT ) )
            {
                if ( value.equals( topOCValue ) )
                {
                    continue;
                }
                
                String normalizedOc = objectClassNormalizer.normalize( value.getString() );

                objectClassIdx.drop( partitionTxn, normalizedOc, id );
            }

            for ( Value value : mods )
            {
                if ( value.equals( topOCValue ) )
                {
                    continue;
                }
                
                String normalizedOc = objectClassNormalizer.normalize( value.getString() );

                objectClassIdx.add( partitionTxn, normalizedOc, id );
            }
        }
        else if ( hasUserIndexOn( attributeType ) )
        {
            Index<?, String> userIndex = getUserIndex( attributeType );

            // Drop all the previous values
            Attribute oldAttribute = entry.get( mods.getAttributeType() );

            if ( oldAttribute != null )
            {
                for ( Value value : oldAttribute )
                {
                    String normalized = value.getNormalized();
                    ( ( Index<Object, String> ) userIndex ).drop( partitionTxn, normalized, id );
                }
            }

            // And add the new ones
            for ( Value value : mods )
            {
                String normalized = value.getNormalized();
                ( ( Index ) userIndex ).add( partitionTxn, normalized, id );
            }

            /*
             * If we have no new value, we have to drop the AT fro the presence index
             */
            if ( mods.size() == 0 )
            {
                presenceIdx.drop( partitionTxn, modsOid, id );
            }
        }
        // Special case for the AdministrativeRole index
        else if ( attributeType.equals( administrativeRoleAT ) )
        {
            // Remove the previous values
            for ( Value value : entry.get( administrativeRoleAT ) )
            {
                if ( value.equals( topOCValue ) )
                {
                    continue;
                }
                
                String normalizedOc = objectClassNormalizer.normalize( value.getString() );

                objectClassIdx.drop( partitionTxn, normalizedOc, id );
            }

            // And add the new ones 
            for ( Value value : mods )
            {
                String valueStr = value.getString();

                if ( valueStr.equals( topOCValue ) )
                {
                    continue;
                }
                
                adminRoleIdx.add( partitionTxn, valueStr, id );
            }
        }

        String aliasAttributeOid = schemaManager.getAttributeTypeRegistry().getOidByName(
            SchemaConstants.ALIASED_OBJECT_NAME_AT );

        if ( mods.getAttributeType().equals( aliasedObjectNameAT ) )
        {
            dropAliasIndices( partitionTxn, id );
        }

        // replaces old attributes with new modified ones if they exist
        if ( mods.size() > 0 )
        {
            entry.put( mods );
        }
        else
        // removes old attributes if new replacements do not exist
        {
            entry.remove( mods );
        }

        if ( modsOid.equals( aliasAttributeOid ) && mods.size() > 0 )
        {
            Dn entryDn = getEntryDn( partitionTxn, id );
            addAliasIndices( partitionTxn, id, entryDn, new Dn( schemaManager, mods.getString() ) );
        }
    }