1 /* 2 * Copyright (C) 2009 The Android Open Source Project 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 17 package dalvik.system; 18 19 /** 20 * Utility methods for logging to {@code DalvikHandlers}. 21 * 22 * @hide 23 */ 24 public final class DalvikLogging { 25 private DalvikLogging() {} 26 27 /** 28 * Returns the short logger tag (up to 23 chars) for the given logger name. 29 * Traditionally loggers are named by fully-qualified Java classes; this 30 * method attempts to return a concise identifying part of such names. 31 */ 32 public static String loggerNameToTag(String loggerName) { 33 // Anonymous logger. 34 if (loggerName == null) { 35 return "null"; 36 } 37 38 int length = loggerName.length(); 39 if (length <= 23) { 40 return loggerName; 41 } 42 43 int lastPeriod = loggerName.lastIndexOf("."); 44 return length - (lastPeriod + 1) <= 23 45 ? loggerName.substring(lastPeriod + 1) 46 : loggerName.substring(loggerName.length() - 23); 47 } 48 } 49
