/*
* 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 mf.org.apache.xerces.impl.dv.dtd;
import java.util.StringTokenizer;
import mf.org.apache.xerces.impl.dv.DatatypeValidator;
import mf.org.apache.xerces.impl.dv.InvalidDatatypeValueException;
import mf.org.apache.xerces.impl.dv.ValidationContext;
/**
* For list types: ENTITIES, IDREFS, NMTOKENS.
*
* @xerces.internal
*
* @author Jeffrey Rodriguez, IBM
* @author Sandy Gao, IBM
*
* @version $Id: ListDatatypeValidator.java 699892 2008-09-28 21:08:27Z mrglavas $
*/
public class ListDatatypeValidator implements DatatypeValidator {
// the type of items in the list
final DatatypeValidator fItemValidator;
// construct a list datatype validator
public ListDatatypeValidator(DatatypeValidator itemDV) {
fItemValidator = itemDV;
}
/**
* Checks that "content" string is valid.
* If invalid a Datatype validation exception is thrown.
*
* @param content the string value that needs to be validated
* @param context the validation context
* @throws InvalidDatatypeException if the content is
* invalid according to the rules for the validators
* @see InvalidDatatypeValueException
*/
public void validate(String content, ValidationContext context) throws InvalidDatatypeValueException {
StringTokenizer parsedList = new StringTokenizer(content," ");
int numberOfTokens = parsedList.countTokens();
if (numberOfTokens == 0) {
throw new InvalidDatatypeValueException("EmptyList", null);
}
//Check each token in list against base type
while (parsedList.hasMoreTokens()) {
this.fItemValidator.validate(parsedList.nextToken(), context);
}
}
}