private static AttributeType parseAttributeTypeStrict()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/schema/parsers/OpenLdapSchemaParser.java [2907:3114]
150 lines of code
25 McCabe index (conditional complexity)

    private static AttributeType parseAttributeTypeStrict( Reader reader, PosSchema pos,
        Map<String, OpenLdapObjectIdentifierMacro> objectIdentifierMacros ) throws IOException, LdapSchemaException
    {
        // Get rid of whites, comments end empty lines
        skipWhites( reader, pos, false );
        
        // we must have a '('
        if ( pos.line.charAt( pos.start ) != LPAREN )
        {
            throw new LdapSchemaException( I18n.err( I18n.ERR_13829_NO_OPENING_PAREN, 
                pos.lineNumber, pos.start ) );
        }
        else
        {
            pos.start++;
        }
        
        // Get rid of whites, comments end empty lines
        skipWhites( reader, pos, false );
        
        // Now, the OID. 
        String oid = getOidAndMacroRelaxed( pos, objectIdentifierMacros );
        
        // Check that the OID is valid
        if ( !Oid.isOid( oid ) )
        {
            throw new LdapSchemaException( I18n.err( I18n.ERR_13787_OID_EXPECTED, pos.lineNumber, pos.start ) );
        }
        
        AttributeType attributeType = new AttributeType( oid );
        boolean hasSup = false;
        boolean hasSyntax = false;
        int elementsSeen = 0;
        
        while ( true )
        {
            if ( startsWith( reader, pos, RPAREN ) )
            {
                pos.start++;
                break;
            }
            
            skipWhites( reader, pos, true );

            if ( startsWith( pos, NAME_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.NAME, pos );
                
                pos.start += NAME_STR.length();
                
                skipWhites( reader, pos, true );

                attributeType.setNames( getQDescrs( reader, pos, STRICT ) );
            }
            else if ( startsWith( pos, DESC_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.DESC, pos );

                pos.start += DESC_STR.length();
                
                skipWhites( reader, pos, true );

                attributeType.setDescription( getQDString( reader, pos ) );
            }
            else if ( startsWith( pos, OBSOLETE_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.OBSOLETE, pos );
                
                pos.start += OBSOLETE_STR.length();
                
                attributeType.setObsolete( true );
            }
            else if ( startsWith( pos, SUP_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.SUP, pos );
                
                pos.start += SUP_STR.length();
                
                skipWhites( reader, pos, true );
                
                String superiorOid = getOidStrict( pos );

                attributeType.setSuperiorOid( superiorOid );
                hasSup = true;
            }
            else if ( startsWith( pos, EQUALITY_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.EQUALITY, pos );
                
                pos.start += EQUALITY_STR.length();
                
                skipWhites( reader, pos, true );
                
                String equalityOid = getOidStrict( pos );

                attributeType.setEqualityOid( equalityOid );
            }
            else if ( startsWith( pos, ORDERING_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.ORDERING, pos );
                
                pos.start += ORDERING_STR.length();
                
                skipWhites( reader, pos, true );
                
                String orderingOid = getOidStrict( pos );

                attributeType.setOrderingOid( orderingOid );
            }
            else if ( startsWith( pos, SUBSTR_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.SUBSTR, pos );

                pos.start += SUBSTR_STR.length();
                
                skipWhites( reader, pos, true );
                
                String substrOid = getOidStrict( pos );

                attributeType.setSubstringOid( substrOid );
            }
            else if ( startsWith( pos, SYNTAX_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.SYNTAX, pos );
                
                pos.start += SYNTAX_STR.length();
                
                skipWhites( reader, pos, true );
                
                getNoidLenStrict( attributeType, pos );

                hasSyntax = true;
            }
            else if ( startsWith( pos, SINGLE_VALUE_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.SINGLE_VALUE, pos );
                
                pos.start += SINGLE_VALUE_STR.length();
                
                attributeType.setSingleValued( true );
            }
            else if ( startsWith( pos, COLLECTIVE_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.COLLECTIVE, pos );
                
                pos.start += COLLECTIVE_STR.length();
                
                attributeType.setCollective( true );
            }
            else if ( startsWith( pos, NO_USER_MODIFICATION_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.NO_USER_MODIFICATION, pos );
                
                pos.start += NO_USER_MODIFICATION_STR.length();
                
                attributeType.setUserModifiable( false );
            }
            else if ( startsWith( pos, USAGE_STR ) )
            {
                elementsSeen = checkElement( elementsSeen, AttributeTypeElements.USAGE, pos );
                
                pos.start += USAGE_STR.length();
                
                skipWhites( reader, pos, true );
                
                UsageEnum usage = getUsageStrict( pos );

                attributeType.setUsage( usage );
            }
            else if ( startsWith( pos, EXTENSION_PREFIX ) )
            {
                processExtension( reader, pos, attributeType );
            }
            else if ( startsWith( reader, pos, RPAREN ) )
            {
                pos.start++;
                break;
            }
            else
            {
                // This is an error
                throw new LdapSchemaException( I18n.err( I18n.ERR_13798_AT_DESCRIPTION_INVALID, 
                    pos.lineNumber, pos.start ) );
            }
        }
        
        // Semantic checks
        if ( !hasSup && !hasSyntax )
        {
            throw new LdapSchemaException( I18n.err( I18n.ERR_13799_SYNTAX_OR_SUP_REQUIRED, 
                pos.lineNumber, pos.start ) );
        }

        if ( attributeType.isCollective() && ( attributeType.getUsage() != UsageEnum.USER_APPLICATIONS ) )
        {
            throw new LdapSchemaException( I18n.err( I18n.ERR_13800_COLLECTIVE_REQUIRES_USER_APPLICATION, 
                pos.lineNumber, pos.start ) );
        }
    
        // NO-USER-MODIFICATION requires an operational USAGE.
        if ( !attributeType.isUserModifiable() && ( attributeType.getUsage() == UsageEnum.USER_APPLICATIONS ) )
        {
            throw new LdapSchemaException( I18n.err( I18n.ERR_13801_NO_USER_MOD_REQUIRE_OPERATIONAL, 
                pos.lineNumber, pos.start ) );
        }
        
        return attributeType;
    }