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 package com.example.android.mediabrowserservice.utils;
17 
18 import android.util.Log;
19 
20 public class LogHelper {
v(String tag, Object... messages)21     public static void v(String tag, Object... messages) {
22         log(tag, Log.VERBOSE, null, messages);
23     }
24 
d(String tag, Object... messages)25     public static void d(String tag, Object... messages) {
26         log(tag, Log.DEBUG, null, messages);
27     }
28 
i(String tag, Object... messages)29     public static void i(String tag, Object... messages) {
30         log(tag, Log.INFO, null, messages);
31     }
32 
w(String tag, Object... messages)33     public static void w(String tag, Object... messages) {
34         log(tag, Log.WARN, null, messages);
35     }
36 
w(String tag, Throwable t, Object... messages)37     public static void w(String tag, Throwable t, Object... messages) {
38         log(tag, Log.WARN, t, messages);
39     }
40 
e(String tag, Object... messages)41     public static void e(String tag, Object... messages) {
42         log(tag, Log.ERROR, null, messages);
43     }
44 
e(String tag, Throwable t, Object... messages)45     public static void e(String tag, Throwable t, Object... messages) {
46         log(tag, Log.ERROR, t, messages);
47     }
48 
log(String tag, int level, Throwable t, Object... messages)49     public static void log(String tag, int level, Throwable t, Object... messages) {
50         if (messages != null && Log.isLoggable(tag, level)) {
51             String message;
52             if (messages.length == 1) {
53                 message = messages[0] == null ? null : messages[0].toString();
54             } else {
55                 StringBuilder sb = new StringBuilder();
56                 for (Object m: messages) {
57                     sb.append(m);
58                 }
59                 if (t != null) {
60                     sb.append("\n").append(Log.getStackTraceString(t));
61                 }
62                 message = sb.toString();
63             }
64             Log.println(level, tag, message);
65         }
66     }
67 }
68