1 package org.apache.dvsl.directive;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.Writer;
23 import java.io.IOException;
24
25 import org.apache.velocity.context.InternalContextAdapter;
26 import org.apache.velocity.runtime.parser.node.Node;
27 import org.apache.velocity.runtime.parser.node.SimpleNode;
28 import org.apache.velocity.runtime.directive.Directive;
29 import org.apache.velocity.runtime.parser.ParserTreeConstants;
30 import org.apache.velocity.runtime.RuntimeServices;
31
32 import org.apache.dvsl.TemplateHandler;
33
34 /**
35 * Velocity Directive to handle template registration of
36 * match declarations (like the XSLT match=)
37 *
38 * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
39 */
40 public class MatchDirective extends Directive
41 {
42 public String getName()
43 {
44 return "match";
45 }
46
47 public int getType()
48 {
49 return BLOCK;
50 }
51
52 public boolean render( InternalContextAdapter context,
53 Writer writer, Node node)
54 throws IOException
55 {
56
57 /*
58 * what is our arg?
59 */
60
61 Node n = (SimpleNode) node.jjtGetChild(0);
62
63 if ( n.getType() == ParserTreeConstants.JJTSTRINGLITERAL)
64 {
65 try
66 {
67 String element =(String)((SimpleNode) node.jjtGetChild(0)).value( context );
68 TemplateHandler th = (TemplateHandler) rsvc.getApplicationAttribute("org.apache.dvsl.TemplateHandler");
69
70 th.registerMatch( element, (SimpleNode) node.jjtGetChild( node.jjtGetNumChildren() - 1 ) );
71 }
72 catch( Exception ee )
73 {}
74
75 }
76
77 return true;
78 }
79 }