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Struts example source code file (SelectHandler.java)
The Struts SelectHandler.java source code/* * $Id: SelectHandler.java 1084872 2011-03-24 08:11:57Z mcucchiara $ * * 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 com.opensymphony.xwork2.util.ValueStack; import org.apache.struts2.components.ListUIBean; import org.apache.struts2.components.OptGroup; import org.apache.struts2.util.ContainUtil; import org.apache.struts2.util.MakeIterator; import org.apache.struts2.views.java.Attributes; import org.apache.struts2.views.java.TagGenerator; import org.apache.commons.lang.StringUtils; import java.io.IOException; import java.util.Iterator; import java.util.List; import java.util.Map; public class SelectHandler extends AbstractTagHandler implements TagGenerator { public void generate() throws IOException { Map<String, Object> params = context.getParameters(); Attributes a = new Attributes(); Object value = params.get("nameValue"); a.addDefaultToEmpty("name", params.get("name")) .addIfExists("size", params.get("size")) .addIfExists("value", value) .addIfTrue("disabled", params.get("disabled")) .addIfTrue("readonly", params.get("readonly")) .addIfTrue("multiple", params.get("multiple")) .addIfExists("tabindex", params.get("tabindex")) .addIfExists("id", params.get("id")) .addIfExists("class", params.get("cssClass")) .addIfExists("style", params.get("cssStyle")) .addIfExists("title", params.get("title")); super.start("select", a); //options //header String headerKey = (String) params.get("headerKey"); String headerValue = (String) params.get("headerValue"); if (headerKey != null && headerValue != null) { boolean selected = ContainUtil.contains(value, params.get("headerKey")); writeOption(headerKey, headerValue, selected); } //emptyoption Object emptyOption = params.get("emptyOption"); if (emptyOption != null && emptyOption.toString().equals(Boolean.toString(true))) { boolean selected = ContainUtil.contains(value, "") || ContainUtil.contains(value, null); writeOption("", "", selected); } Object listObj = params.get("list"); String listKey = (String) params.get("listKey"); String listValue = (String) params.get("listValue"); ValueStack stack = this.context.getStack(); if (listObj != null) { Iterator itt = MakeIterator.convert(listObj); while (itt.hasNext()) { Object item = itt.next(); stack.push(item); //key Object itemKey = findValue(listKey != null ? listKey : "top"); String itemKeyStr = StringUtils.defaultString(itemKey == null ? null : itemKey.toString()); //value Object itemValue = findValue(listValue != null ? listValue : "top"); String itemValueStr = StringUtils.defaultString(itemValue == null ? null : itemValue.toString()); boolean selected = ContainUtil.contains(value, itemKey); writeOption(itemKeyStr, itemValueStr, selected); stack.pop(); } } //opt group List<ListUIBean> listUIBeans = (List Other Struts examples (source code examples)Here is a short list of links related to this Struts SelectHandler.java source code file: |
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