| /* |
| * 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.shared.ldap.schema.syntaxCheckers; |
| |
| |
| import org.apache.directory.shared.ldap.constants.SchemaConstants; |
| import org.apache.directory.shared.ldap.schema.SyntaxChecker; |
| import org.apache.directory.shared.ldap.util.StringTools; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A SyntaxChecker which verifies that a value is a Printable String according to RFC 4517. |
| * |
| * From RFC 4517 : |
| * |
| * PrintableString = 1*PrintableCharacter |
| * PrintableCharacter = ALPHA | DIGIT | SQUOTE | LPAREN | RPAREN | |
| * PLUS | COMMA | HYPHEN | DOT | EQUALS | |
| * SLASH | COLON | QUESTION | SPACE |
| * |
| * SLASH = %x2F ; forward slash ("/") |
| * COLON = %x3A ; colon (":") |
| * QUESTION= %x3F ; question mark ("?") |
| * |
| * From RFC 4512 : |
| * ALPHA = %x41-5A | %x61-7A ; "A"-"Z" / "a"-"z" |
| * DIGIT = %x30 | LDIGIT ; "0"-"9" |
| * LDIGIT = %x31-39 ; "1"-"9" |
| * SQUOTE = %x27 ; single quote ("'") |
| * LPAREN = %x28 ; left paren ("(") |
| * RPAREN = %x29 ; right paren (")") |
| * PLUS = %x2B ; plus sign ("+") |
| * COMMA = %x2C ; comma (",") |
| * HYPHEN = %x2D ; hyphen ("-") |
| * DOT = %x2E ; period (".") |
| * EQUALS = %x3D ; equals sign ("=") |
| * SPACE = %x20 ; space (" ") |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class PrintableStringSyntaxChecker extends SyntaxChecker |
| { |
| /** A logger for this class */ |
| private static final Logger LOG = LoggerFactory.getLogger( PrintableStringSyntaxChecker.class ); |
| |
| /** The serialVersionUID */ |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * Creates a new instance of PrintableStringSyntaxChecker. |
| */ |
| public PrintableStringSyntaxChecker() |
| { |
| super( SchemaConstants.PRINTABLE_STRING_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 = StringTools.utf8ToString( ( byte[] ) value ); |
| } |
| else |
| { |
| strValue = value.toString(); |
| } |
| |
| if ( strValue.length() == 0 ) |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| return false; |
| } |
| |
| // We must have at least one char |
| if ( strValue.length() == 0 ) |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| return false; |
| } |
| |
| boolean result = StringTools.isPrintableString( strValue ); |
| |
| if ( result ) |
| { |
| LOG.debug( "Syntax valid for '{}'", value ); |
| } |
| else |
| { |
| LOG.debug( "Syntax invalid for '{}'", value ); |
| } |
| |
| return result; |
| } |
| } |