terraform/vendor/github.com/cihub/seelog/dispatch_filterdispatcher.go

67 lines
2.4 KiB
Go

// Copyright (c) 2012 - Cloud Instruments Co., Ltd.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package seelog
import (
"fmt"
)
// A filterDispatcher writes the given message to underlying receivers only if message log level
// is in the allowed list.
type filterDispatcher struct {
*dispatcher
allowList map[LogLevel]bool
}
// NewFilterDispatcher creates a new filterDispatcher using a list of allowed levels.
func NewFilterDispatcher(formatter *formatter, receivers []interface{}, allowList ...LogLevel) (*filterDispatcher, error) {
disp, err := createDispatcher(formatter, receivers)
if err != nil {
return nil, err
}
allows := make(map[LogLevel]bool)
for _, allowLevel := range allowList {
allows[allowLevel] = true
}
return &filterDispatcher{disp, allows}, nil
}
func (filter *filterDispatcher) Dispatch(
message string,
level LogLevel,
context LogContextInterface,
errorFunc func(err error)) {
isAllowed, ok := filter.allowList[level]
if ok && isAllowed {
filter.dispatcher.Dispatch(message, level, context, errorFunc)
}
}
func (filter *filterDispatcher) String() string {
return fmt.Sprintf("filterDispatcher ->\n%s", filter.dispatcher)
}