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
17package dexfuzz;
18
19/**
20 * Provides access to the logging facilities of dexfuzz.
21 */
22public class Log {
23  private static LogTag threshold = LogTag.ERROR;
24
25  // Disable the constructor for this class.
26  private Log() { }
27
28  public static enum LogTag {
29    DEBUG,
30    INFO,
31    WARN,
32    ERROR,
33    ALWAYS
34  }
35
36  public static void setLoggingLevel(LogTag tag) {
37    threshold = tag;
38  }
39
40  public static boolean likelyToLog() {
41    return (threshold.ordinal() < LogTag.ERROR.ordinal());
42  }
43
44  public static void debug(String msg) {
45    log(LogTag.DEBUG, msg);
46  }
47
48  public static void info(String msg) {
49    log(LogTag.INFO, msg);
50  }
51
52  public static void warn(String msg) {
53    log(LogTag.WARN, msg);
54  }
55
56  public static void error(String msg) {
57    log(LogTag.ERROR, msg);
58  }
59
60  public static void always(String msg) {
61    System.out.println(msg);
62  }
63
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   */
73  public static void errorAndQuit(String msg) {
74    error(msg);
75    // TODO: Signal sleeping threads.
76    System.exit(1);
77  }
78}
79