| /* |
| * 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.components; |
| |
| import com.opensymphony.xwork2.util.ValueStack; |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.struts2.views.annotations.StrutsTag; |
| import org.apache.struts2.views.annotations.StrutsTagAttribute; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * <!-- START SNIPPET: javadoc --> |
| * |
| * Render action messages if they exists, specific rendering layout depends on the |
| * theme itself. Empty (null or blank string) messages will not be printed. The action message |
| * strings will be html escaped by default. |
| * |
| * <!-- END SNIPPET: javadoc --> |
| * |
| * <p><b>Examples</b></p> |
| * |
| * <pre> |
| * <!-- START SNIPPET: example --> |
| * <s:actionmessage /> |
| * <s:form .... > |
| * .... |
| * </s:form> |
| * <!-- END SNIPPET: example --> |
| * </pre> |
| * |
| */ |
| @StrutsTag(name="actionmessage", tldBodyContent="empty", tldTagClass="org.apache.struts2.views.jsp.ui.ActionMessageTag", description="Render action messages if they exists") |
| public class ActionMessage extends UIBean { |
| |
| private static final String TEMPLATE = "actionmessage"; |
| protected boolean escape = true; |
| |
| public ActionMessage(ValueStack stack, HttpServletRequest request, HttpServletResponse response) { |
| super(stack, request, response); |
| } |
| |
| @Override |
| protected String getDefaultTemplate() { |
| return TEMPLATE; |
| } |
| |
| @Override |
| protected void evaluateExtraParams() { |
| boolean isEmptyList = true; |
| Collection<String> actionMessages = (List) findValue("actionMessages"); |
| if (actionMessages != null) { |
| for (String message : actionMessages) { |
| if (StringUtils.isNotBlank(message)) { |
| isEmptyList = false; |
| break; |
| } |
| } |
| } |
| |
| addParameter("isEmptyList", isEmptyList); |
| addParameter("escape", escape); |
| } |
| |
| @StrutsTagAttribute(description = "Whether to escape HTML", type = "Boolean", defaultValue = "true") |
| public void setEscape(boolean escape) { |
| this.escape = escape; |
| } |
| } |