1 /*
2 * Copyright 2011 Vincent Behar
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.rundeck.api.parser;
17
18 import org.apache.commons.lang.StringUtils;
19 import org.dom4j.Node;
20
21 /**
22 * Parser for a single {@link String}
23 *
24 * @author Vincent Behar
25 */
26 public class StringParser implements XmlNodeParser<String> {
27
28 private String xpath;
29
30 public StringParser() {
31 super();
32 }
33
34 /**
35 * @param xpath of the string element if it is not the root node
36 */
37 public StringParser(String xpath) {
38 super();
39 this.xpath = xpath;
40 }
41
42 @Override
43 public String parseXmlNode(Node node) {
44 Node strNode = xpath != null ? node.selectSingleNode(xpath) : node;
45
46 return StringUtils.trimToNull(strNode.getStringValue());
47 }
48
49 }