mirror of
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73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package internal
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import (
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"sync"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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)
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// LogBufferCore is a zapcore.Core that buffers log entries in memory.
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type LogBufferCore struct {
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mu sync.Mutex
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entries []zapcore.Entry
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fields [][]zapcore.Field
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level zapcore.LevelEnabler
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}
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func NewLogBufferCore(level zapcore.LevelEnabler) *LogBufferCore {
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return &LogBufferCore{
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level: level,
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}
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}
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func (c *LogBufferCore) Enabled(lvl zapcore.Level) bool {
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return c.level.Enabled(lvl)
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}
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func (c *LogBufferCore) With(fields []zapcore.Field) zapcore.Core {
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return c
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}
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func (c *LogBufferCore) Check(entry zapcore.Entry, ce *zapcore.CheckedEntry) *zapcore.CheckedEntry {
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if c.Enabled(entry.Level) {
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return ce.AddCore(entry, c)
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}
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return ce
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}
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func (c *LogBufferCore) Write(entry zapcore.Entry, fields []zapcore.Field) error {
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c.mu.Lock()
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defer c.mu.Unlock()
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c.entries = append(c.entries, entry)
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c.fields = append(c.fields, fields)
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return nil
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}
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func (c *LogBufferCore) Sync() error { return nil }
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// FlushTo flushes buffered logs to the given zap.Logger.
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func (c *LogBufferCore) FlushTo(logger *zap.Logger) {
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c.mu.Lock()
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defer c.mu.Unlock()
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for idx, entry := range c.entries {
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logger.WithOptions().Check(entry.Level, entry.Message).Write(c.fields[idx]...)
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}
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c.entries = nil
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c.fields = nil
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}
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