1 /* 2 * Copyright (C) 2014 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 dexfuzz; 18 19 /** 20 * Provides access to the logging facilities of dexfuzz. 21 */ 22 public class Log { 23 private static LogTag threshold = LogTag.ERROR; 24 25 // Disable the constructor for this class. Log()26 private Log() { } 27 28 public static enum LogTag { 29 DEBUG, 30 INFO, 31 WARN, 32 ERROR, 33 ALWAYS 34 } 35 setLoggingLevel(LogTag tag)36 public static void setLoggingLevel(LogTag tag) { 37 threshold = tag; 38 } 39 likelyToLog()40 public static boolean likelyToLog() { 41 return (threshold.ordinal() < LogTag.ERROR.ordinal()); 42 } 43 debug(String msg)44 public static void debug(String msg) { 45 log(LogTag.DEBUG, msg); 46 } 47 info(String msg)48 public static void info(String msg) { 49 log(LogTag.INFO, msg); 50 } 51 warn(String msg)52 public static void warn(String msg) { 53 log(LogTag.WARN, msg); 54 } 55 error(String msg)56 public static void error(String msg) { 57 log(LogTag.ERROR, msg); 58 } 59 always(String msg)60 public static void always(String msg) { 61 System.out.println(msg); 62 } 63 log(LogTag tag, String msg)64 private static void log(LogTag tag, String msg) { 65 if (tag.ordinal() >= threshold.ordinal()) { 66 System.out.println("[" + tag.toString() + "] " + msg); 67 } 68 } 69 70 /** 71 * Reports error and then terminates the program. 72 */ errorAndQuit(String msg)73 public static void errorAndQuit(String msg) { 74 error(msg); 75 // TODO: Signal sleeping threads. 76 System.exit(1); 77 } 78 } 79