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      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 com.android.testingcamera2;
     18 
     19 import java.util.Locale;
     20 
     21 import android.util.Log;
     22 
     23 public class TLog {
     24 
     25     private static Logger mLogger;
     26     private static final String TAG = "TestingCamera2";
     27 
     28     synchronized static public void setLogger(Logger logger) {
     29         mLogger = logger;
     30     }
     31 
     32     /**
     33      * Log an informative message to the current log destination and to the system log.
     34      * Supports formatting in the style of String.format()
     35      *
     36      * @param text The text to print out, with optional formatting specifiers
     37      * @param args Arguments to fill in to the string
     38      */
     39     synchronized static public void i(String text, Object... args) {
     40         if (args.length > 0) {
     41             text = String.format(Locale.US, text, args);
     42         }
     43         android.util.Log.i(TAG, text);
     44         if (mLogger != null) {
     45             mLogger.addToLog(text, false);
     46         }
     47     }
     48 
     49     /**
     50      * Log an error message to the current log destination and to the system log.
     51      * Supports formatting in the style of String.format()
     52      *
     53      * @param text The text to print out, with optional formatting specifiers
     54      * @param args Arguments to fill in to the string
     55      */
     56     synchronized static public void e(String text, Object... args) {
     57         if (args.length > 0) {
     58             text = String.format(Locale.US, text, args);
     59         }
     60         android.util.Log.e(TAG, text);
     61         if (mLogger != null) {
     62             mLogger.addToLog(text, true);
     63         }
     64     }
     65 
     66     /**
     67      * Log an error message to the current log destination and to the system log,
     68      * including the exception stack trace.
     69      *
     70      * <p>The trace will be added after the main error message.  Supports formatting in
     71      * the style of String.format()</p>
     72      *
     73      * @param text The text to print out, with optional formatting specifiers
     74      * @param e The throwable for the error
     75      * @param args Arguments to fill in to the string
     76      */
     77     synchronized static public void e(String text, Throwable e, Object... args) {
     78         text = String.format("%s\n%s", text, Log.getStackTraceString(e));
     79         if (args.length > 0) {
     80             text = String.format(Locale.US, text, args);
     81         }
     82         android.util.Log.e(TAG, text);
     83         if (mLogger != null) {
     84             mLogger.addToLog(text, true);
     85         }
     86     }
     87 
     88     public interface Logger {
     89         public void addToLog(String text, boolean error);
     90     }
     91 }