| /* |
| * 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.commons.jelly.tags.define; |
| |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.TagSupport; |
| import org.apache.commons.jelly.impl.DynamicTagLibrary; |
| |
| /** |
| * An abstract base class useful for implementation inheritance. |
| * |
| * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public abstract class DefineTagSupport extends TagSupport { |
| |
| // Implementation methods |
| //------------------------------------------------------------------------- |
| |
| /** |
| * @return the current dynamic tag library instance or throws a JellyException |
| * if one is not available |
| */ |
| public DynamicTagLibrary getTagLibrary() { |
| TaglibTag tag |
| = (TaglibTag) findAncestorWithClass(TaglibTag.class); |
| if ( tag == null ) { |
| throw new IllegalArgumentException( "<define:tag> must be inside <define:taglib>" ); |
| } |
| return tag.getTagLibrary(); |
| } |
| |
| } |