1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.commons.betwixt.digester;
19
20 import org.apache.commons.betwixt.Descriptor;
21 import org.apache.commons.digester.Rule;
22 import org.xml.sax.Attributes;
23
24 /**
25 * Maps option tree to an option in the
26 * {@link org.apache.commons.betwixt.Options}
27 * on the current description.
28 * @author <a href='http://commons.apache.org/'>Apache Commons Team</a>
29 * @since 0.5
30 */
31 public class OptionRule extends Rule {
32
33 private String currentValue;
34 private String currentName;
35
36 /**
37 * @see org.apache.commons.digester.Rule#begin(java.lang.String, java.lang.String, Attributes)
38 */
39 public void begin(String namespace, String name, Attributes attributes)
40 throws Exception {
41 currentValue = null;
42 currentName = null;
43 }
44
45
46
47 /**
48 * @see org.apache.commons.digester.Rule#end(java.lang.String, java.lang.String)
49 */
50 public void end(String namespace, String name) {
51 if (currentName != null && currentValue != null) {
52 Object top = getDigester().peek();
53 if (top instanceof Descriptor) {
54 Descriptor descriptor = (Descriptor) top;
55 descriptor.getOptions().addOption(currentName, currentValue);
56 }
57 }
58 }
59
60 /**
61 * Gets the rule that maps the <code>name</code> element
62 * associated with the option
63 * @return <code>Rule</code>, not null
64 */
65 public Rule getNameRule() {
66 return new Rule() {
67 public void body(String namespace, String name, String text) {
68 currentName = text;
69 }
70 };
71 }
72
73 /**
74 * Gets the rule that maps the <code>value</code> element
75 * associated with the option
76 * @return <code>Rule</code>, not null
77 */
78 public Rule getValueRule() {
79 return new Rule() {
80 public void body(String namespace, String name, String text) {
81 currentValue = text;
82 }
83 };
84 }
85 }