| // Copyright 2022 The Pigweed Authors |
| // |
| // 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 |
| // |
| // https://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 dev.pigweed.pw_log; |
| |
| import android.util.Log; |
| import java.util.logging.Level; |
| |
| /** |
| * Partial implementation of the com.google.common.flogger.FluentLogger API that |
| * logs to android.util.Log. |
| */ |
| public final class Logger { |
| private final String tag; |
| |
| public final class AndroidLogApi { |
| private final int level; |
| |
| private Throwable cause = null; |
| |
| private AndroidLogApi(Level level) { |
| if (level == Level.FINEST || level == Level.FINER) { |
| this.level = Log.VERBOSE; |
| } else if (level == Level.FINE || level == Level.CONFIG) { |
| this.level = Log.DEBUG; |
| } else if (level == Level.WARNING) { |
| this.level = Log.WARN; |
| } else if (level == Level.SEVERE) { |
| this.level = Log.ERROR; |
| } else { |
| this.level = Log.INFO; |
| } |
| } |
| |
| public AndroidLogApi withCause(Throwable cause) { |
| this.cause = cause; |
| return this; |
| } |
| |
| public void log(String message) { |
| if (cause != null) { |
| message = String.format("%s: %s", cause, message); |
| } |
| |
| Log.println(level, tag, message); |
| } |
| |
| public void log(String message, Object... args) { |
| log(String.format(message, args)); |
| } |
| } |
| |
| public static Logger forClass(Class<?> enclosingClass) { |
| return new Logger(enclosingClass.getSimpleName()); |
| } |
| |
| private Logger(String tag) { |
| this.tag = tag; |
| } |
| |
| public AndroidLogApi at(Level level) { |
| return new AndroidLogApi(level); |
| } |
| |
| public AndroidLogApi atSevere() { |
| return at(Level.SEVERE); |
| } |
| |
| public AndroidLogApi atWarning() { |
| return at(Level.WARNING); |
| } |
| |
| public AndroidLogApi atInfo() { |
| return at(Level.INFO); |
| } |
| |
| public AndroidLogApi atConfig() { |
| return at(Level.CONFIG); |
| } |
| |
| public AndroidLogApi atFine() { |
| return at(Level.FINE); |
| } |
| |
| public AndroidLogApi atFiner() { |
| return at(Level.FINER); |
| } |
| |
| public AndroidLogApi atFinest() { |
| return at(Level.FINEST); |
| } |
| } |