1 /*
2 * Copyright 2002,2004 The Apache Software Foundation.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.commons.jelly.tags.beanshell;
17
18 import bsh.EvalError;
19
20 import org.apache.commons.jelly.JellyTagException;
21 import org.apache.commons.jelly.TagSupport;
22 import org.apache.commons.jelly.XMLOutput;
23
24 /***
25 * A tag which invokes a BeanShell script..
26 *
27 * @author Jason Horman
28 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
29 * @version $Revision: 155420 $
30 */
31 public class ScriptTag extends TagSupport {
32
33 public ScriptTag() {
34 }
35
36 // Tag interface
37 //-------------------------------------------------------------------------
38 public void doTag(XMLOutput output) throws JellyTagException {
39 try {
40 JellyInterpreter interpreter = BeanShellExpressionFactory.getInterpreter(context);
41
42 // @todo it'd be really nice to create a JellyNameSpace to pass into
43 // this method so that any variables declared by beanshell could be exported
44 // into the JellyContext
45 String text = getBodyText(false);
46 interpreter.eval(text);
47 } catch (EvalError e) {
48 throw new JellyTagException(e);
49 }
50 }
51 }