| /* |
| * 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.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.directory.api.ldap.model.constants.SchemaConstants; |
| import org.apache.directory.api.ldap.model.schema.SyntaxChecker; |
| import org.apache.directory.api.util.Strings; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A SyntaxChecker which verifies that a name is valid for an ObjectClass |
| * or an AttributeType<br/><br/> |
| * |
| * <m-name> = <keystring> <br/> |
| * <keystring> = <leadkeychar> *<keychar><br/> |
| * <leadkeychar> = <ALPHA><br/> |
| * <keychar> = <ALPHA> / <DIGIT> / <HYPHEN> / <SEMI><br/> |
| * <ALPHA> = %x41-5A / %x61-7A ; "A"-"Z" / "a"-"z"<br/> |
| * <DIGIT> = %x30 / <LDIGIT ; "0"-"9"<br/> |
| * <LDIGIT> = %x31-39 ; "1"-"9"<br/> |
| * <HYPHEN> = %x2D ; hyphen ("-")<br/> |
| * <SEMI> = %x3B ; semicolon (";")<br/> |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| @SuppressWarnings("serial") |
| public class ObjectNameSyntaxChecker extends SyntaxChecker |
| { |
| /** A logger for this class */ |
| private static final Logger LOG = LoggerFactory.getLogger( ObjectNameSyntaxChecker.class ); |
| |
| private static final String REGEXP = "^([a-zA-Z][a-zA-Z0-9-;]*)$"; |
| |
| private static final Pattern PATTERN = Pattern.compile( REGEXP ); |
| |
| |
| /** |
| * Creates a new instance of ObjectNameSyntaxChecker. |
| */ |
| public ObjectNameSyntaxChecker() |
| { |
| super( SchemaConstants.OBJECT_NAME_SYNTAX ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isValidSyntax( Object value ) |
| { |
| String strValue = null; |
| |
| if ( value == null ) |
| { |
| LOG.debug( "Syntax invalid for 'null'" ); |
| return false; |
| } |
| |
| if ( value instanceof String ) |
| { |
| strValue = ( String ) value; |
| } |
| else if ( value instanceof byte[] ) |
| { |
| strValue = Strings.utf8ToString( ( byte[] ) value ); |
| } |
| else |
| { |
| strValue = value.toString(); |
| } |
| |
| if ( strValue.length() == 0 ) |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| return false; |
| } |
| |
| // Search for the '$' separator |
| Matcher match = PATTERN.matcher( strValue ); |
| |
| boolean result = match.matches(); |
| |
| if ( result ) |
| { |
| LOG.debug( "Syntax valid for '{}'", value ); |
| } |
| else |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| } |
| |
| return result; |
| } |
| } |