82 lines
2.1 KiB
Go
82 lines
2.1 KiB
Go
package main
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/*
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syslog - This file includes all of the logic necessary to interact with syslog.
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This is extrapolated out so that a SyslogActioner interface can be
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passed to functions. Doing this allows testing by mock classes to be created
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that can be passed to functions.
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Since this is a wrapper around the log/syslog library, this does not need
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testing.
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*/
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import (
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"fmt"
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"log"
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"log/syslog"
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"net"
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)
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// SyslogActioner is an interface for an SyslogActions class. Having
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// this as an interface allows us to pass in a dummy class for testing that
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// just returns mocked data.
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type SyslogActioner interface {
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Connect() error
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Info(string)
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}
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// SyslogActions is a class that handles all interactions directly with Syslog.
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// See the comment on SyslogActioner for rationale.
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type SyslogActions struct {
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logger *syslog.Writer
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Options SyslogOptions
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}
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// SyslogOptions is a class to convey all of the configurable options for the
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// SyslogActions class.
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type SyslogOptions struct {
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Host string
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Protocol string
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Retry bool
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Port string
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}
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// Info is the main method for the SyslogActioner class, it writes an
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// info-level message to the syslog stream.
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func (s SyslogActions) Info(writeMe string) {
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log.Println("Logged: ", writeMe)
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s.logger.Info(writeMe)
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}
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// Connect is the method that establishes the connection to the syslog server
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// over the network.
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func (s *SyslogActions) Connect() error {
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var err error
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address := net.JoinHostPort(s.Options.Host, s.Options.Port)
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if Debug {
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log.Printf("Opening %q syslog socket to %q\n", s.Options.Protocol, s.Options.Host)
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}
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s.logger, err = syslog.Dial(s.Options.Protocol, address, syslog.LOG_INFO, "osel")
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if err != nil {
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log.Printf("error opening syslog socket to %s: %s\n", s.Options.Host, err)
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if s.Options.Retry {
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for err != nil {
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log.Println("retrying")
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s.logger, err = syslog.Dial(s.Options.Protocol, address, syslog.LOG_INFO, "osel")
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}
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}
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return fmt.Errorf("error opening syslog socket to %s: %s", s.Options.Host, err)
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}
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if Debug {
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log.Println("Successfully connected to syslog host", s.Options.Host)
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}
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return nil
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}
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