public boolean isValidSyntax()

in ldap/model/src/main/java/org/apache/directory/api/ldap/model/schema/syntaxCheckers/OidLenSyntaxChecker.java [109:242]
106 lines of code
30 McCabe index (conditional complexity)

    public boolean isValidSyntax( Object value )
    {
        String strValue;

        if ( value == null )
        {
            if ( LOG.isDebugEnabled() )
            {
                LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, "null" ) );
            }
            
            return false;
        }

        if ( value instanceof String )
        {
            strValue = ( String ) value;
        }
        else if ( value instanceof byte[] )
        {
            strValue = Strings.utf8ToString( ( byte[] ) value );
        }
        else
        {
            strValue = value.toString();
        }

        if ( strValue.length() == 0 )
        {
            if ( LOG.isDebugEnabled() )
            {
                LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
            }
            
            return false;
        }

        // We are looking at the first position of the len part
        int pos = strValue.indexOf( '{' );

        if ( pos < 0 )
        {
            // Not found ... but it may still be a valid OID
            boolean result = Oid.isOid( strValue );

            if ( LOG.isDebugEnabled() )
            {
                if ( result )
                {
                    LOG.debug( I18n.msg( I18n.MSG_13701_SYNTAX_VALID, value ) );
                }
                else
                {
                    LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
                }
            }
                
            return result;
        }
        else
        {
            // we should have a len value. First check that the OID is valid
            String oid = strValue.substring( 0, pos );

            if ( !Oid.isOid( oid ) )
            {
                if ( LOG.isDebugEnabled() )
                {
                    LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
                }
                
                return false;
            }

            String len = strValue.substring( pos );

            // We must have a number and a '}' at the end
            if ( len.charAt( len.length() - 1 ) != '}' )
            {
                // No final '}'
                if ( LOG.isDebugEnabled() )
                {
                    LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
                }
                
                return false;
            }

            for ( int i = 1; i < len.length() - 1; i++ )
            {
                switch ( len.charAt( i ) )
                {
                    case '0':
                    case '1':
                    case '2':
                    case '3':
                    case '4':
                    case '5':
                    case '6':
                    case '7':
                    case '8':
                    case '9':
                        break;

                    default:
                        if ( LOG.isDebugEnabled() )
                        {
                            LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
                        }
                        
                        return false;
                }
            }

            if ( ( len.charAt( 1 ) == '0' ) && len.length() > 3 )
            {
                // A number can't start with a '0' unless it's the only
                // number
                if ( LOG.isDebugEnabled() )
                {
                    LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) );
                }
                
                return false;
            }

            if ( LOG.isDebugEnabled() )
            {
                LOG.debug( I18n.msg( I18n.MSG_13701_SYNTAX_VALID, value ) );
            }
            
            return true;
        }
    }