| /* |
| * 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.forms.datatype.validationruleimpl; |
| |
| import org.apache.cocoon.forms.FormsConstants; |
| import org.apache.cocoon.forms.util.I18nMessage; |
| import org.apache.cocoon.forms.validation.ValidationError; |
| import org.apache.oro.text.regex.Pattern; |
| import org.apache.oro.text.regex.PatternMatcher; |
| import org.apache.oro.text.regex.Perl5Matcher; |
| import org.outerj.expression.ExpressionContext; |
| |
| |
| /** |
| * Checks that a String matches a regular expression. |
| * |
| * <p>The <a href="http://jakarta.apache.org/oro/">Jakarta ORO</a> library |
| * is used as regexp engine. |
| * |
| * @version $Id$ |
| */ |
| public class RegExpValidationRule extends AbstractValidationRule { |
| /** Compiled regular expression. */ |
| private Pattern pattern; |
| /** Original string representation of the regexp, used for informational purposes only. */ |
| private String regexp; |
| |
| public ValidationError validate(Object value, ExpressionContext expressionContext) { |
| String string = (String)value; |
| |
| if(matchesRegExp(string)) |
| return null; |
| else |
| return hasFailMessage() ? getFailMessage() : new ValidationError(new I18nMessage("validation.string.regexp", new String[] {regexp}, FormsConstants.I18N_CATALOGUE)); |
| } |
| |
| private boolean matchesRegExp(String string) { |
| PatternMatcher matcher = new Perl5Matcher(); |
| return matcher.matches(string, pattern); |
| } |
| |
| void setPattern(String regexp, Pattern pattern) { |
| this.regexp = regexp; |
| this.pattern = pattern; |
| } |
| |
| |
| public boolean supportsType(Class clazz, boolean arrayType) { |
| return clazz.isAssignableFrom(String.class) && !arrayType; |
| } |
| } |