Class: SemanticLogger::Appender::SplunkHttp

Inherits:
Http show all
Defined in:
lib/semantic_logger/appender/splunk_http.rb

Overview

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Instance Attribute Summary

Attributes inherited from Http

#application, #compress, #continue_timeout, #header, #host, #http, #open_timeout, #path, #port, #read_timeout, #server, #ssl_options, #url, #username

Attributes inherited from Subscriber

#application, #formatter, #host

Attributes inherited from Base

#filter, #name

Instance Method Summary collapse

Methods inherited from Http

#log, #reopen

Methods inherited from Subscriber

#close, #default_formatter, #flush, #level

Methods inherited from Base

#fast_tag, #level, #level=, #measure, #payload, #pop_tags, #push_tags, #silence, #tagged, #tags, #with_payload

Constructor Details

#initialize(options, &block) ⇒ SplunkHttp

Create Splunk appender over persistent HTTP(S)

Parameters:

token: [String]
  Token created in Splunk for this HTTP Appender
  Mandatory.

source_type: [String]
  Optional: Source type to display in Splunk

index: [String]
  Optional: Name of a valid index for this message in Splunk.

url: [String]
  Valid URL to post to.
    Example: http://example.com
  To enable SSL include https in the URL.
    Example: https://example.com
    verify_mode will default: OpenSSL::SSL::VERIFY_PEER

application: [String]
  Name of this application to appear in log messages.
  Default: SemanticLogger.application

host: [String]
  Name of this host to appear in log messages.
  Default: SemanticLogger.host

compress: [true|false]
  Whether to compress the JSON string with GZip.
  Default: true

ssl: [Hash]
  Specific SSL options: For more details see NET::HTTP.start
    ca_file, ca_path, cert, cert_store, ciphers, key, open_timeout, read_timeout, ssl_timeout,
    ssl_version, use_ssl, verify_callback, verify_depth and verify_mode.

level: [:trace | :debug | :info | :warn | :error | :fatal]
  Override the log level for this appender.
  Default: SemanticLogger.default_level

formatter: [Object|Proc]
  An instance of a class that implements #call, or a Proc to be used to format
  the output from this appender
  Default: Use the built-in formatter (See: #call)

filter: [Regexp|Proc]
  RegExp: Only include log messages where the class name matches the supplied.
  regular expression. All other messages will be ignored.
  Proc: Only include log messages where the supplied Proc returns true
        The Proc must return true or false.

Raises:

  • (ArgumentError) 


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# File 'lib/semantic_logger/appender/splunk_http.rb', line 67

def initialize(options, &block)
  options             = options.dup
  @source_type        = options.delete(:source_type)
  @index              = options.delete(:index)
  token               = options.delete(:token)
  raise(ArgumentError, 'Missing mandatory parameter :token') unless token

  # Splunk supports HTTP Compression, enable by default
  options[:compress] = true unless options.key?(:compress)

  super(options, &block)

  @header['Authorization'] = "Splunk #{token}"
end

Instance Method Details

#call(log, logger) ⇒ Object

Returns [String] JSON to send to Splunk For splunk format requirements see:

http://dev.splunk.com/view/event-collector/SP-CAAAE6P



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# File 'lib/semantic_logger/appender/splunk_http.rb', line 85

def call(log, logger)
  h = log.to_h(nil, nil)
  h.delete(:time)
  message               = {
    source: logger.application,
    host:   logger.host,
    time:   log.time.utc.to_f,
    event:  h
  }
  message[:source_type] = @source_type if @source_type
  message[:index]       = @index if @index

  # Render to JSON
  message.to_json
end