001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020 package org.apache.directory.shared.ldap.schema.syntaxCheckers; 021 022 023 024 import org.apache.directory.shared.asn1.primitives.OID; 025 import org.apache.directory.shared.ldap.constants.SchemaConstants; 026 import org.apache.directory.shared.ldap.schema.SyntaxChecker; 027 import org.apache.directory.shared.ldap.util.StringTools; 028 import org.slf4j.Logger; 029 import org.slf4j.LoggerFactory; 030 031 032 /** 033 * A SyntaxChecker which verifies that a value is a numeric oid 034 * according to RFC 4512. 035 * 036 * From RFC 4512 : 037 * 038 * numericoid = number 1*( DOT number ) 039 * number = DIGIT | ( LDIGIT 1*DIGIT ) 040 * DIGIT = %x30 | LDIGIT ; "0"-"9" 041 * LDIGIT = %x31-39 ; "1"-"9" 042 * DOT = %x2E ; period (".") 043 044 * 045 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 046 * @version $Rev$ 047 */ 048 public class NumericOidSyntaxChecker extends SyntaxChecker 049 { 050 /** A logger for this class */ 051 private static final Logger LOG = LoggerFactory.getLogger( NumericOidSyntaxChecker.class ); 052 053 /** The serialVersionUID */ 054 private static final long serialVersionUID = 1L; 055 056 /** 057 * Creates a new instance of NumericOidSyntaxChecker. 058 */ 059 public NumericOidSyntaxChecker() 060 { 061 super( SchemaConstants.NUMERIC_OID_SYNTAX ); 062 } 063 064 065 /** 066 * {@inheritDoc} 067 */ 068 public boolean isValidSyntax( Object value ) 069 { 070 String strValue = null; 071 072 if ( value == null ) 073 { 074 LOG.debug( "Syntax invalid for '{}'", value ); 075 return false; 076 } 077 078 if ( value instanceof String ) 079 { 080 strValue = ( String ) value; 081 } 082 else if ( value instanceof byte[] ) 083 { 084 strValue = StringTools.utf8ToString( ( byte[] ) value ); 085 } 086 else 087 { 088 strValue = value.toString(); 089 } 090 091 if ( strValue.length() == 0 ) 092 { 093 LOG.debug( "Syntax invalid for '{}'", value ); 094 return false; 095 } 096 097 // Just check that the value is a valid OID 098 boolean result = ( OID.isOID( strValue ) ); 099 100 if ( result ) 101 { 102 LOG.debug( "Syntax valid for '{}'", value ); 103 } 104 else 105 { 106 LOG.debug( "Syntax invalid for '{}'", value ); 107 } 108 109 return result; 110 } 111 }