| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.api.ldap.model.schema.syntaxCheckers; |
| |
| |
| import java.text.ParseException; |
| |
| import org.apache.directory.api.ldap.model.constants.SchemaConstants; |
| import org.apache.directory.api.ldap.model.schema.SyntaxChecker; |
| import org.apache.directory.api.ldap.model.schema.parsers.ObjectClassDescriptionSchemaParser; |
| import org.apache.directory.api.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A SyntaxChecker which verifies that a value follows the |
| * object class descripton syntax according to RFC 4512, par 4.2.1: |
| * |
| * <pre> |
| * ObjectClassDescription = LPAREN WSP |
| * numericoid ; object identifier |
| * [ SP "NAME" SP qdescrs ] ; short names (descriptors) |
| * [ SP "DESC" SP qdstring ] ; description |
| * [ SP "OBSOLETE" ] ; not active |
| * [ SP "SUP" SP oids ] ; superior object classes |
| * [ SP kind ] ; kind of class |
| * [ SP "MUST" SP oids ] ; attribute types |
| * [ SP "MAY" SP oids ] ; attribute types |
| * extensions WSP RPAREN |
| * |
| * kind = "ABSTRACT" / "STRUCTURAL" / "AUXILIARY" |
| * |
| * extensions = *( SP xstring SP qdstrings ) |
| * xstring = "X" HYPHEN 1*( ALPHA / HYPHEN / USCORE ) |
| * </pre> |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| @SuppressWarnings("serial") |
| public class ObjectClassDescriptionSyntaxChecker extends SyntaxChecker |
| { |
| /** A logger for this class */ |
| private static final Logger LOG = LoggerFactory.getLogger( ObjectClassDescriptionSyntaxChecker.class ); |
| |
| /** The schema parser used to parse the ObjectClassDescription Syntax */ |
| private ObjectClassDescriptionSchemaParser schemaParser = new ObjectClassDescriptionSchemaParser(); |
| |
| |
| /** |
| * Creates a new instance of ObjectClassDescriptionSyntaxChecker. |
| */ |
| public ObjectClassDescriptionSyntaxChecker() |
| { |
| super( SchemaConstants.OBJECT_CLASS_DESCRIPTION_SYNTAX ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isValidSyntax( Object value ) |
| { |
| String strValue = null; |
| |
| if ( value == null ) |
| { |
| LOG.debug( "Syntax invalid for 'null'" ); |
| return false; |
| } |
| |
| if ( value instanceof String ) |
| { |
| strValue = ( String ) value; |
| } |
| else if ( value instanceof byte[] ) |
| { |
| strValue = Strings.utf8ToString( ( byte[] ) value ); |
| } |
| else |
| { |
| strValue = value.toString(); |
| } |
| |
| try |
| { |
| schemaParser.parseObjectClassDescription( strValue ); |
| LOG.debug( "Syntax valid for '{}'", value ); |
| return true; |
| } |
| catch ( ParseException pe ) |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| return false; |
| } |
| } |
| } |