| /******************************************************************************* |
| * 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.ofbiz.minilang.operation; |
| |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map; |
| |
| import org.apache.oro.text.regex.MalformedPatternException; |
| import org.apache.oro.text.regex.Pattern; |
| import org.apache.oro.text.regex.PatternMatcher; |
| import org.apache.oro.text.regex.Perl5Matcher; |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.GeneralException; |
| import org.apache.ofbiz.base.util.ObjectType; |
| import org.apache.ofbiz.base.util.PatternFactory; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Validates the current field using a regular expression |
| */ |
| public class Regexp extends SimpleMapOperation { |
| |
| public static final String module = Regexp.class.getName(); |
| private Pattern pattern = null; |
| String expr; |
| |
| public Regexp(Element element, SimpleMapProcess simpleMapProcess) { |
| super(element, simpleMapProcess); |
| expr = element.getAttribute("expr"); |
| try { |
| pattern = PatternFactory.createOrGetPerl5CompiledPattern(expr, true); |
| } catch (MalformedPatternException e) { |
| Debug.logError(e, module); |
| } |
| } |
| |
| @Override |
| public void exec(Map<String, Object> inMap, Map<String, Object> results, List<Object> messages, Locale locale, ClassLoader loader) { |
| Object obj = inMap.get(fieldName); |
| String fieldValue = null; |
| try { |
| fieldValue = (String) ObjectType.simpleTypeConvert(obj, "String", null, locale); |
| } catch (GeneralException e) { |
| messages.add("Could not convert field value for comparison: " + e.getMessage()); |
| return; |
| } |
| if (pattern == null) { |
| messages.add("Could not compile regular expression \"" + expr + "\" for validation"); |
| return; |
| } |
| PatternMatcher matcher = new Perl5Matcher(); |
| if (!matcher.matches(fieldValue, pattern)) { |
| addMessage(messages, loader, locale); |
| } |
| } |
| } |