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- /*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you 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 thrift
- import (
- "log"
- "os"
- )
- // Logger is a simple wrapper of a logging function.
- //
- // In reality the users might actually use different logging libraries, and they
- // are not always compatible with each other.
- //
- // Logger is meant to be a simple common ground that it's easy to wrap whatever
- // logging library they use into.
- //
- // See https://issues.apache.org/jira/browse/THRIFT-4985 for the design
- // discussion behind it.
- type Logger func(msg string)
- // NopLogger is a Logger implementation that does nothing.
- func NopLogger(msg string) {}
- // StdLogger wraps stdlib log package into a Logger.
- //
- // If logger passed in is nil, it will fallback to use stderr and default flags.
- func StdLogger(logger *log.Logger) Logger {
- if logger == nil {
- logger = log.New(os.Stderr, "", log.LstdFlags)
- }
- return func(msg string) {
- logger.Print(msg)
- }
- }
- func fallbackLogger(logger Logger) Logger {
- if logger == nil {
- return StdLogger(nil)
- }
- return logger
- }
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