SimpleLogger

gistfile1.java

/*
 * Copyright (c) 2014. Ye Lin Aung
 * 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.
 */

/*
 * Copyright 2012 Google Inc.
 *
 * 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.
 */

import android.util.Log;

/**
 * Created by Ye Lin Aung on 14/01/18.
 */

public class LogUtils {

  private static String LOG_PREFIX = "YOUR_APP_NAME";
  private static final int LOG_PREFIX_LENGTH = LOG_PREFIX.length();
  private static final int MAX_LOG_TAG_LENGTH = 23;
  // Define your prefix here

  public LogUtils() {
  }

  // TODO You have to specify your own prefix
  public static String setPrefix(String prefix) {
    return LOG_PREFIX = prefix;
  }

  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;
  }

  public static String makeLogTag(Class<?> cls) {
    return makeLogTag(cls.getSimpleName());
  }

  public static void LOGD(final String tag, String message) {
    Throwable throwable = new Throwable();
    StackTraceElement[] e = throwable.getStackTrace();
    String c_name = e[1].getMethodName();

    if (BuildConfig.DEBUG) {
      Log.d(tag, "[" + c_name + "] " + message);
    }
  }

  public static void LOGD(final String tag, String message, Throwable throwable) {
    if (BuildConfig.DEBUG) {
      Log.d(tag, message, throwable);
    }
  }

  public static void LOGV(final String tag, String message) {
    Throwable throwable = new Throwable();
    StackTraceElement[] e = throwable.getStackTrace();
    String c_name = e[1].getMethodName();

    if (BuildConfig.DEBUG) {
      Log.v(tag, "[" + c_name + "] " + message);
    }
  }

  public static void LOGV(final String tag, String message, Throwable throwable) {
    if (BuildConfig.DEBUG) {
      Log.v(tag, message, throwable);
    }
  }

  public static void LOGI(final String tag, String message) {
    Throwable throwable = new Throwable();
    StackTraceElement[] e = throwable.getStackTrace();
    String c_name = e[1].getMethodName();

    if (BuildConfig.DEBUG) {
      Log.i(tag, "[" + c_name + "] " + message);
    }
  }

  public static void LOGI(final String tag, String message, Throwable throwable) {
    if (BuildConfig.DEBUG) {
      Log.i(tag, message, throwable);
    } else if (Log.isLoggable(tag, Log.VERBOSE)) {
      Log.i(tag, message, throwable);
    } else {
      Log.i(tag, message, throwable);
    }
  }

  public static void LOGE(final String tag, String message) {
    Throwable throwable = new Throwable();
    StackTraceElement[] e = throwable.getStackTrace();
    String c_name = e[1].getMethodName();

    if (BuildConfig.DEBUG) {
      Log.e(tag, "[" + c_name + "] " + message);
    }
  }

  public static void LOGE(final String tag, String message, Throwable throwable) {
    if (BuildConfig.DEBUG) {
      Log.e(tag, message, throwable);
    }
  }
}

Sample

  private String TAG = makeLogTag(LoginActivity.class);
  
  LOGD(TAG, "lat " + getLatLong()[0]);