// Copyright 2017 The Bazel Authors. All rights reserved. // // 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.devtools.build.lib.util; import com.google.common.collect.ImmutableRangeMap; import com.google.common.collect.Range; import java.io.PrintWriter; import java.io.StringWriter; import java.time.Instant; import java.time.ZoneOffset; import java.time.format.DateTimeFormatter; import java.util.logging.Formatter; import java.util.logging.Level; import java.util.logging.LogRecord; /** * Formatter to write java.util.logging messages out in single-line format. * *
Log entries contain the date and time (in UTC), log level (as letter and numerical value),
* source location, thread ID, message and, if applicable, a stack trace.
*/
public class SingleLineFormatter extends Formatter {
/** Single-character codes based on {@link Level}s. */
private static final ImmutableRangeMap