| /* |
| * $Id$ |
| * |
| * 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.commons.lang3.BooleanUtils; |
| import org.apache.struts2.util.MakeIterator; |
| import org.apache.struts2.views.java.Attributes; |
| import org.apache.struts2.views.java.TagGenerator; |
| |
| import java.io.IOException; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| /** |
| * Base class for ActionError and ActionMessage |
| */ |
| public abstract class AbstractMessageListHandler extends AbstractTagHandler implements TagGenerator { |
| public void generate() throws IOException { |
| Map<String, Object> params = context.getParameters(); |
| Object errorsObj = findValue(getListExpression()); |
| |
| if (errorsObj != null) { |
| Iterator itt = MakeIterator.convert(errorsObj); |
| if (itt.hasNext()) { |
| boolean escape = BooleanUtils.toBooleanDefaultIfNull((Boolean) params.get("escape"), false); |
| Attributes attrs = new Attributes(); |
| attrs.addIfExists("style", params.get("cssStyle")) |
| .add("class", params.containsKey("cssClass") ? (String) params.get("cssClass") : getDefaultClass()); |
| start("ul", attrs); |
| while (itt.hasNext()) { |
| String error = (String) itt.next(); |
| |
| //li for each error |
| start("li", null); |
| |
| //span for error |
| start("span", null); |
| characters(error, escape); |
| end("span"); |
| end("li"); |
| |
| } |
| end("ul"); |
| } |
| } |
| } |
| |
| /* |
| * Expression used to get list from stack |
| */ |
| protected abstract String getListExpression(); |
| |
| /* |
| * default class for UL element |
| */ |
| protected abstract String getDefaultClass(); |
| } |
| |