| /* |
| * 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 |
| * |
| * https://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 org.apache.directory.api.i18n.I18n; |
| 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; |
| |
| |
| /** |
| * A SyntaxChecker which verifies that a value is a Number according to RFC 4512. |
| * <p> |
| * From RFC 4512 : |
| * <pre> |
| * number = DIGIT | ( LDIGIT 1*DIGIT ) |
| * DIGIT = %x30 | LDIGIT ; "0"-"9" |
| * LDIGIT = %x31-39 ; "1"-"9" |
| * </pre> |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| @SuppressWarnings("serial") |
| public final class NumberSyntaxChecker extends SyntaxChecker |
| { |
| /** |
| * A static instance of NumberSyntaxChecker |
| */ |
| public static final NumberSyntaxChecker INSTANCE = new NumberSyntaxChecker( SchemaConstants.NUMBER_SYNTAX ); |
| |
| /** |
| * A static Builder for this class |
| */ |
| public static final class Builder extends SCBuilder<NumberSyntaxChecker> |
| { |
| /** |
| * The Builder constructor |
| */ |
| private Builder() |
| { |
| super( SchemaConstants.NUMBER_SYNTAX ); |
| } |
| |
| |
| /** |
| * Create a new instance of NumberSyntaxChecker |
| * @return A new instance of NumberSyntaxChecker |
| */ |
| @Override |
| public NumberSyntaxChecker build() |
| { |
| return new NumberSyntaxChecker( oid ); |
| } |
| } |
| |
| |
| /** |
| * Creates a new instance of NumberSyntaxChecker. |
| * |
| * @param oid The OID to use for this SyntaxChecker |
| */ |
| private NumberSyntaxChecker( String oid ) |
| { |
| super( oid ); |
| } |
| |
| |
| /** |
| * @return An instance of the Builder for this class |
| */ |
| public static Builder builder() |
| { |
| return new Builder(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| 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(); |
| } |
| |
| // We should have at least one char |
| if ( strValue.length() == 0 ) |
| { |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) ); |
| } |
| |
| return false; |
| } |
| |
| // Check that each char is either a digit or a space |
| for ( int i = 0; i < strValue.length(); i++ ) |
| { |
| switch ( strValue.charAt( i ) ) |
| { |
| case '0': |
| case '1': |
| case '2': |
| case '3': |
| case '4': |
| case '5': |
| case '6': |
| case '7': |
| case '8': |
| case '9': |
| continue; |
| |
| default: |
| if ( LOG.isDebugEnabled() ) |
| { |
| LOG.debug( I18n.err( I18n.ERR_13210_SYNTAX_INVALID, value ) ); |
| } |
| |
| return false; |
| } |
| } |
| |
| if ( ( strValue.charAt( 0 ) == '0' ) && strValue.length() > 1 ) |
| { |
| // 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; |
| } |
| } |