src/com/android/deskclock/LogUtils.java

/*
 * Copyright (C) 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.deskclock;

import android.os.Build;
import android.util.Log;

public class LogUtils {

    /**
     * Default logger used for generic logging, i.eTAG. when a specific log tag isn't specified.
     */
    private final static Logger DEFAULT_LOGGER = new Logger("AlarmClock");

    public static void v(String message, Object... args) {
        DEFAULT_LOGGER.v(message, args);
    }

    public static void d(String message, Object... args) {
        DEFAULT_LOGGER.d(message, args);
    }

    public static void i(String message, Object... args) {
        DEFAULT_LOGGER.i(message, args);
    }

    public static void w(String message, Object... args) {
        DEFAULT_LOGGER.w(message, args);
    }

    public static void e(String message, Object... args) {
        DEFAULT_LOGGER.e(message, args);
    }

    public static void e(String message, Throwable e) {
        DEFAULT_LOGGER.e(message, e);
    }

    public static void wtf(String message, Object... args) {
        DEFAULT_LOGGER.wtf(message, args);
    }

    public static void wtf(Throwable e) {
        DEFAULT_LOGGER.wtf(e);
    }

    public final static class Logger {

        /**
         * Log everything for debug builds or if running on a dev device.
         */
        public final static boolean DEBUG = BuildConfig.DEBUG
                || "eng".equals(Build.TYPE)
                || "userdebug".equals(Build.TYPE);

        public final String logTag;

        public Logger(String logTag) {
            this.logTag = logTag;
        }

        public boolean isVerboseLoggable() { return DEBUG || Log.isLoggable(logTag, Log.VERBOSE); }
        public boolean isDebugLoggable() { return DEBUG || Log.isLoggable(logTag, Log.DEBUG); }
        public boolean isInfoLoggable() { return DEBUG || Log.isLoggable(logTag, Log.INFO); }
        public boolean isWarnLoggable() { return DEBUG || Log.isLoggable(logTag, Log.WARN); }
        public boolean isErrorLoggable() { return DEBUG || Log.isLoggable(logTag, Log.ERROR); }
        public boolean isWtfLoggable() { return DEBUG || Log.isLoggable(logTag, Log.ASSERT); }

        public void v(String message, Object... args) {
            if (isVerboseLoggable()) {
                Log.v(logTag, args == null || args.length == 0
                        ? message : String.format(message, args));
            }
        }

        public void d(String message, Object... args) {
            if (isDebugLoggable()) {
                Log.d(logTag, args == null || args.length == 0 ? message
                        : String.format(message, args));
            }
        }

        public void i(String message, Object... args) {
            if (isInfoLoggable()) {
                Log.i(logTag, args == null || args.length == 0 ? message
                        : String.format(message, args));
            }
        }

        public void w(String message, Object... args) {
            if (isWarnLoggable()) {
                Log.w(logTag, args == null || args.length == 0 ? message
                        : String.format(message, args));
            }
        }

        public void e(String message, Object... args) {
            if (isErrorLoggable()) {
                Log.e(logTag, args == null || args.length == 0 ? message
                        : String.format(message, args));
            }
        }

        public void e(String message, Throwable e) {
            if (isErrorLoggable()) {
                Log.e(logTag, message, e);
            }
        }

        public void wtf(String message, Object... args) {
            if (isWtfLoggable()) {
                Log.wtf(logTag, args == null || args.length == 0 ? message
                        : String.format(message, args));
            }
        }

        public void wtf(Throwable e) {
            if (isWtfLoggable()) {
                Log.wtf(logTag, e);
            }
        }
    }
}