github.com/niedbalski/juju@v0.0.0-20190215020005-8ff100488e47/worker/logforwarder/sink.go (about)

     1  // Copyright 2016 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package logforwarder
     5  
     6  import (
     7  	"github.com/juju/juju/core/watcher"
     8  	"github.com/juju/juju/logfwd/syslog"
     9  )
    10  
    11  // LogForwardConfig provides access to the log forwarding config for a model.
    12  type LogForwardConfig interface {
    13  	// WatchForLogForwardConfigChanges return a NotifyWatcher waiting for the
    14  	// log forward configuration to change.
    15  	WatchForLogForwardConfigChanges() (watcher.NotifyWatcher, error)
    16  
    17  	// LogForwardConfig returns the current log forward configuration.
    18  	LogForwardConfig() (*syslog.RawConfig, bool, error)
    19  }
    20  
    21  type LogSinkSpec struct {
    22  	// Name is the name of the log sink.
    23  	Name string
    24  
    25  	// OpenFn is a function that opens a log sink.
    26  	OpenFn LogSinkFn
    27  }
    28  
    29  // LogSinkFn is a function that opens a log sink.
    30  type LogSinkFn func(cfg *syslog.RawConfig) (*LogSink, error)
    31  
    32  // LogSink is a single log sink, to which log records may be sent.
    33  type LogSink struct {
    34  	SendCloser
    35  }