001/** 002 * Logback: the reliable, generic, fast and flexible logging framework. 003 * Copyright (C) 1999-2015, QOS.ch. All rights reserved. 004 * 005 * This program and the accompanying materials are dual-licensed under 006 * either the terms of the Eclipse Public License v1.0 as published by 007 * the Eclipse Foundation 008 * 009 * or (per the licensee's choosing) 010 * 011 * under the terms of the GNU Lesser General Public License version 2.1 012 * as published by the Free Software Foundation. 013 */ 014package ch.qos.logback.core.util; 015 016/** 017 * Various utility methods for processing strings representing context types. 018 * 019 * @author Ceki Gulcu 020 * 021 */ 022public class ContentTypeUtil { 023 024 public static boolean isTextual(String contextType) { 025 if (contextType == null) { 026 return false; 027 } 028 return contextType.startsWith("text"); 029 } 030 031 public static String getSubType(String contextType) { 032 if (contextType == null) { 033 return null; 034 } 035 int index = contextType.indexOf('/'); 036 if (index == -1) { 037 return null; 038 } else { 039 int subTypeStartIndex = index + 1; 040 if (subTypeStartIndex < contextType.length()) { 041 return contextType.substring(subTypeStartIndex); 042 } else { 043 return null; 044 } 045 } 046 } 047}