| /* |
| * 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.cocoon.woody.datatype.validationruleimpl; |
| |
| import org.apache.cocoon.woody.datatype.ValidationRule; |
| import org.apache.cocoon.woody.util.DomHelper; |
| import org.outerj.expression.Expression; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Builds {@link LengthValidationRule}s. |
| * |
| * @version $Id$ |
| */ |
| public class LengthValidationRuleBuilder extends AbstractValidationRuleBuilder { |
| public ValidationRule build(Element validationRuleElement) throws Exception { |
| LengthValidationRule rule = new LengthValidationRule(); |
| |
| String exactExprString = validationRuleElement.getAttribute("exact"); |
| String minExprString = validationRuleElement.getAttribute("min"); |
| String maxExprString = validationRuleElement.getAttribute("max"); |
| |
| if (exactExprString.length() > 0) { |
| Expression expression = parseExpression(exactExprString, validationRuleElement, "exact"); |
| rule.setExactExpr(expression); |
| } else if (minExprString.length() > 0 && maxExprString.length() > 0) { |
| Expression expression = parseExpression(minExprString, validationRuleElement, "min"); |
| rule.setMinExpr(expression); |
| expression = parseExpression(maxExprString, validationRuleElement, "max"); |
| rule.setMaxExpr(expression); |
| } else if (minExprString.length() > 0) { |
| Expression expression = parseExpression(minExprString, validationRuleElement, "min"); |
| rule.setMinExpr(expression); |
| } else if (maxExprString.length() > 0) { |
| Expression expression = parseExpression(maxExprString, validationRuleElement, "max"); |
| rule.setMaxExpr(expression); |
| } else { |
| throw new Exception("length validation rule requires a min and/or max, or exact attribute at " + DomHelper.getLocation(validationRuleElement)); |
| } |
| |
| buildFailMessage(validationRuleElement, rule); |
| |
| return rule; |
| } |
| } |