1 /**
2 * Logback: the reliable, generic, fast and flexible logging framework.
3 * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
4 *
5 * This program and the accompanying materials are dual-licensed under
6 * either the terms of the Eclipse Public License v1.0 as published by
7 * the Eclipse Foundation
8 *
9 * or (per the licensee's choosing)
10 *
11 * under the terms of the GNU Lesser General Public License version 2.1
12 * as published by the Free Software Foundation.
13 */
14 package ch.qos.logback.core.util;
15
16 /**
17 * Various utility methods for processing strings representing context types.
18 *
19 * @author Ceki Gulcu
20 *
21 */
22 public class ContentTypeUtil {
23
24 public static boolean isTextual(String contextType) {
25 if (contextType == null) {
26 return false;
27 }
28 return contextType.startsWith("text");
29 }
30
31 public static String getSubType(String contextType) {
32 if (contextType == null) {
33 return null;
34 }
35 int index = contextType.indexOf('/');
36 if (index == -1) {
37 return null;
38 } else {
39 int subTypeStartIndex = index + 1;
40 if (subTypeStartIndex < contextType.length()) {
41 return contextType.substring(subTypeStartIndex);
42 } else {
43 return null;
44 }
45 }
46 }
47 }