| /* |
| * 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.cocoon.faces.taglib; |
| |
| import org.apache.cocoon.taglib.TagSupport; |
| |
| import org.apache.cocoon.faces.FacesUtils; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import javax.faces.component.UIComponent; |
| |
| /** |
| * @version CVS $Id$ |
| */ |
| public class AttributeTag extends TagSupport { |
| |
| private String name; |
| private String value; |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public void setValue(String value) { |
| this.value = value; |
| } |
| |
| public int doStartTag(String namespaceURI, String localName, String qName, Attributes atts) |
| throws SAXException { |
| UIComponentTag tag = FacesUtils.findParentUIComponentTag(this); |
| if (tag == null) { |
| throw new SAXException("Tag <" + getClass().getName() + "> have to be nested within a UIComponentTag"); |
| } |
| |
| UIComponent component = tag.getComponentInstance(); |
| if (component == null) { |
| throw new SAXException("Parent tag <" + tag.getClass(). getName() + "> has no component instance"); |
| } |
| |
| String nameVal = (String) tag.evaluate(name); |
| Object valueVal = tag.evaluate(value); |
| if (component.getAttributes().get(nameVal) == null) { |
| component.getAttributes().put(nameVal, valueVal); |
| } |
| |
| return SKIP_BODY; |
| } |
| |
| public void recycle() { |
| super.recycle(); |
| this.name = null; |
| this.value = null; |
| } |
| } |