54 lines
1.8 KiB
Go
54 lines
1.8 KiB
Go
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// Copyright (C) 2014 Space Monkey, Inc.
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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 spacelog
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import (
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"text/template"
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)
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// Handler is an interface that knows how to process log events. This is the
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// basic interface type for building a logging system. If you want to route
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// structured log data somewhere, you would implement this interface.
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type Handler interface {
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// Log is called for every message. if calldepth is negative, caller
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// information is missing
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Log(logger_name string, level LogLevel, msg string, calldepth int)
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// These two calls are expected to be no-ops on non-text-output handlers
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SetTextTemplate(t *template.Template)
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SetTextOutput(output TextOutput)
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}
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// HandlerFunc is a type to make implementation of the Handler interface easier
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type HandlerFunc func(logger_name string, level LogLevel, msg string,
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calldepth int)
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// Log simply calls f(logger_name, level, msg, calldepth)
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func (f HandlerFunc) Log(logger_name string, level LogLevel, msg string,
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calldepth int) {
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f(logger_name, level, msg, calldepth)
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}
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// SetTextTemplate is a no-op
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func (HandlerFunc) SetTextTemplate(t *template.Template) {}
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// SetTextOutput is a no-op
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func (HandlerFunc) SetTextOutput(output TextOutput) {}
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var (
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defaultHandler = NewTextHandler(StdlibTemplate,
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&StdlibOutput{})
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)
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