| /* |
| * 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.struts2.views.java.simple; |
| |
| import org.apache.struts2.views.java.Attributes; |
| import org.apache.struts2.views.java.TagGenerator; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| |
| public class FieldErrorHandler extends AbstractTagHandler implements TagGenerator { |
| public void generate() throws IOException { |
| Map<String, Object> params = context.getParameters(); |
| Map<String, List<String>> errors = (Map<String, List<String>>) findValue("fieldErrors"); |
| List<String> fieldErrorFieldNames = (List<String>) params.get("errorFieldNames"); |
| |
| if (fieldErrorFieldNames != null && !fieldErrorFieldNames.isEmpty() && errors != null && !errors.isEmpty()) { |
| startUL(params); |
| |
| //iterate over field error names |
| for (String fieldErrorFieldName : fieldErrorFieldNames) { |
| List<String> fieldErrors = errors.get(fieldErrorFieldName); |
| if (fieldErrors != null) { |
| for (String fieldError : fieldErrors) { |
| writeError(params, fieldError); |
| } |
| } |
| } |
| |
| endUL(); |
| } else if (errors != null && !errors.isEmpty()) { |
| startUL(params); |
| |
| for (Map.Entry<String, List<String>> errorEntry : errors.entrySet()) { |
| for (String fieldError : errorEntry.getValue()) { |
| writeError(params, fieldError); |
| } |
| } |
| |
| endUL(); |
| } |
| } |
| |
| private void endUL() throws IOException { |
| end("ul"); |
| } |
| |
| private void writeError(Map<String, Object> params, String fieldError) throws IOException { |
| start("li", null); |
| start("span", null); |
| characters(fieldError, params.containsKey("escape") ? (Boolean) params.get("escape") : true); |
| end("span"); |
| end("li"); |
| } |
| |
| private void startUL(Map<String, Object> params) throws IOException { |
| Attributes attrs = new Attributes(); |
| attrs.addIfExists("style", params.get("cssStyle")) |
| .add("class", params.containsKey("cssClass") ? (String) params.get("cssClass") : "errorMessage"); |
| start("ul", attrs); |
| } |
| } |