1 /* 2 * reserved comment block 3 * DO NOT REMOVE OR ALTER! 4 */ 5 /* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22 package com.sun.org.apache.xerces.internal.impl.dv.dtd; 23 24 import com.sun.org.apache.xerces.internal.impl.dv.*; 25 import java.util.StringTokenizer; 26 27 /** 28 * For list types: ENTITIES, IDREFS, NMTOKENS. 29 * 30 * @xerces.internal 31 * 32 * @author Jeffrey Rodriguez, IBM 33 * @author Sandy Gao, IBM 34 * 35 */ 36 public class ListDatatypeValidator implements DatatypeValidator { 37 38 // the type of items in the list 39 DatatypeValidator fItemValidator; 40 41 // construct a list datatype validator 42 public ListDatatypeValidator(DatatypeValidator itemDV) { 43 fItemValidator = itemDV; 44 } 45 46 /** 47 * Checks that "content" string is valid. 48 * If invalid a Datatype validation exception is thrown. 49 * 50 * @param content the string value that needs to be validated 51 * @param context the validation context 52 * @throws InvalidDatatypeException if the content is 53 * invalid according to the rules for the validators 54 * @see InvalidDatatypeValueException 55 */ 56 public void validate(String content, ValidationContext context) throws InvalidDatatypeValueException { 57 58 StringTokenizer parsedList = new StringTokenizer(content," "); 59 int numberOfTokens = parsedList.countTokens(); 60 if (numberOfTokens == 0) { 61 throw new InvalidDatatypeValueException("EmptyList", null); 62 } 63 //Check each token in list against base type 64 while (parsedList.hasMoreTokens()) { 65 this.fItemValidator.validate(parsedList.nextToken(), context); 66 } 67 } 68 69 }