Android Open Source - Muzei Log Util

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License

The source code is released under:
Apache License
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Java Source Code

/*
 * Copyright 2014 Google Inc.//from www . j a v  a  2  s  .  c  om
 *
 * 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.google.android.apps.muzei.util;

import android.util.Log;

import net.nurik.roman.muzei.BuildConfig;

/**
 * Helper methods that make logging more consistent throughout the app.
 */
public class LogUtil {
    private static final String TAG = makeLogTag(LogUtil.class);

    private static final String LOG_PREFIX = "muzei_";
    private static final int LOG_PREFIX_LENGTH = LOG_PREFIX.length();
    private static final int MAX_LOG_TAG_LENGTH = 23;

    private LogUtil() {
    }

    public static String makeLogTag(String str) {
        if (str.length() > MAX_LOG_TAG_LENGTH - LOG_PREFIX_LENGTH) {
            return LOG_PREFIX + str.substring(0, MAX_LOG_TAG_LENGTH - LOG_PREFIX_LENGTH - 1);
        }

        return LOG_PREFIX + str;
    }

    /**
     * WARNING: Don't use this when obfuscating class names with Proguard!
     */
    public static String makeLogTag(Class cls) {
        return makeLogTag(cls.getSimpleName());
    }

    public static void LOGD(final String tag, String message) {
        //noinspection PointlessBooleanExpression,ConstantConditions
        if (BuildConfig.DEBUG || Log.isLoggable(tag, Log.DEBUG)) {
            Log.d(tag, message);
        }
    }

    public static void LOGD(final String tag, String message, Throwable cause) {
        //noinspection PointlessBooleanExpression,ConstantConditions
        if (BuildConfig.DEBUG || Log.isLoggable(tag, Log.DEBUG)) {
            Log.d(tag, message, cause);
        }
    }

    public static void LOGV(final String tag, String message) {
        //noinspection PointlessBooleanExpression,ConstantConditions
        if (BuildConfig.DEBUG && Log.isLoggable(tag, Log.VERBOSE)) {
            Log.v(tag, message);
        }
    }

    public static void LOGV(final String tag, String message, Throwable cause) {
        //noinspection PointlessBooleanExpression,ConstantConditions
        if (BuildConfig.DEBUG && Log.isLoggable(tag, Log.VERBOSE)) {
            Log.v(tag, message, cause);
        }
    }

    public static void LOGI(final String tag, String message) {
        Log.i(tag, message);
    }

    public static void LOGI(final String tag, String message, Throwable cause) {
        Log.i(tag, message, cause);
    }

    public static void LOGW(final String tag, String message) {
        if (BuildConfig.DEBUG) {
            Log.w(tag, message, new Throwable()); // create a stacktrace
        } else {
            Log.w(tag, message);
        }
    }

    public static void LOGW(final String tag, String message, Throwable cause) {
        Log.w(tag, message, cause);
    }

    public static void LOGE(final String tag, String message) {
        if (BuildConfig.DEBUG) {
            Log.e(tag, message, new Throwable()); // create a stacktrace
        } else {
            Log.e(tag, message);
        }
    }

    public static void LOGE(final String tag, String message, Throwable cause) {
        Log.e(tag, message, cause);
    }
}
Java Source Code List
