uken/fluent-plugin-elasticsearch

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lib/fluent/plugin/in_elasticsearch.rb

Summary

Maintainability
D
2 days
Test Coverage

Method get_connection_options has a Cognitive Complexity of 21 (exceeds 5 allowed). Consider refactoring.
Open

    def get_connection_options(con_host=nil)

      hosts = if con_host || @hosts
        (con_host || @hosts).split(',').map do |host_str|
          # Support legacy hosts format host:port,host:port,host:port...
Severity: Minor
Found in lib/fluent/plugin/in_elasticsearch.rb - About 2 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

File in_elasticsearch.rb has 273 lines of code (exceeds 250 allowed). Consider refactoring.
Open

require 'elasticsearch'

require 'faraday/excon'
require 'fluent/log-ext'
require 'fluent/plugin/input'
Severity: Minor
Found in lib/fluent/plugin/in_elasticsearch.rb - About 2 hrs to fix

    Method create_time_parser has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
    Open

        def create_time_parser
          if @timestamp_key_format
            begin
              # Strptime doesn't support all formats, but for those it does it's
              # blazingly fast.
    Severity: Minor
    Found in lib/fluent/plugin/in_elasticsearch.rb - About 1 hr to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Method configure has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
    Open

        def configure(conf)
          super
    
          @timestamp_parser = create_time_parser
          @backend_options = backend_options
    Severity: Minor
    Found in lib/fluent/plugin/in_elasticsearch.rb - About 1 hr to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Method client has 30 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        def client(host = nil)
          # check here to see if we already have a client connection for the given host
          connection_options = get_connection_options(host)
    
          @_es = nil unless is_existing_connection(connection_options[:hosts])
    Severity: Minor
    Found in lib/fluent/plugin/in_elasticsearch.rb - About 1 hr to fix

      Method configure has 29 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          def configure(conf)
            super
      
            @timestamp_parser = create_time_parser
            @backend_options = backend_options
      Severity: Minor
      Found in lib/fluent/plugin/in_elasticsearch.rb - About 1 hr to fix

        Method process_events has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
        Open

            def process_events(hit, es)
              event = hit["_source"]
              time = Fluent::Engine.now
              if @parse_timestamp
                if event.has_key?(TIMESTAMP_FIELD)
        Severity: Minor
        Found in lib/fluent/plugin/in_elasticsearch.rb - About 45 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Method run_slice has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
        Open

            def run_slice(slice_id=nil)
              slice_query = @base_query
              slice_query = slice_query.merge('slice' => { 'id' => slice_id, 'max' => @num_slices}) unless slice_id.nil?
              result = client.search(@options.merge(:body => Yajl.dump(slice_query) ))
              es = Fluent::MultiEventStream.new
        Severity: Minor
        Found in lib/fluent/plugin/in_elasticsearch.rb - About 45 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Method is_existing_connection has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
        Open

            def is_existing_connection(host)
              # check if the host provided match the current connection
              return false if @_es.nil?
              return false if @current_config.nil?
              return false if host.length != @current_config.length
        Severity: Minor
        Found in lib/fluent/plugin/in_elasticsearch.rb - About 35 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Avoid too many return statements within this method.
        Open

              return true
        Severity: Major
        Found in lib/fluent/plugin/in_elasticsearch.rb - About 30 mins to fix

          Identical blocks of code found in 2 locations. Consider refactoring.
          Open

                  (con_host || @hosts).split(',').map do |host_str|
                    # Support legacy hosts format host:port,host:port,host:port...
                    if host_str.match(%r{^[^:]+(\:\d+)?$})
                      {
                        host:   host_str.split(':')[0],
          Severity: Major
          Found in lib/fluent/plugin/in_elasticsearch.rb and 1 other location - About 1 hr to fix
          lib/fluent/plugin/out_elasticsearch_dynamic.rb on lines 84..97

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 74.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Identical blocks of code found in 2 locations. Consider refactoring.
          Open

              def is_existing_connection(host)
                # check if the host provided match the current connection
                return false if @_es.nil?
                return false if @current_config.nil?
                return false if host.length != @current_config.length
          Severity: Major
          Found in lib/fluent/plugin/in_elasticsearch.rb and 1 other location - About 1 hr to fix
          lib/fluent/plugin/out_elasticsearch.rb on lines 1179..1191

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 55.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Similar blocks of code found in 2 locations. Consider refactoring.
          Open

              def parse_time(value, event_time, tag)
                @timestamp_parser.call(value)
              rescue => e
                router.emit_error_event(@timestamp_parse_error_tag, Fluent::Engine.now, {'tag' => tag, 'time' => event_time, 'format' => @timestamp_key_format, 'value' => value}, e)
                return Time.at(event_time).to_time
          Severity: Minor
          Found in lib/fluent/plugin/in_elasticsearch.rb and 1 other location - About 25 mins to fix
          lib/fluent/plugin/out_elasticsearch.rb on lines 575..580

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 31.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Identical blocks of code found in 2 locations. Consider refactoring.
          Open

              def get_escaped_userinfo(host_str)
                if m = host_str.match(/(?<scheme>.*)%{(?<user>.*)}:%{(?<password>.*)}(?<path>@.*)/)
                  m["scheme"] +
                    URI.encode_www_form_component(m["user"]) +
                    ':' +
          Severity: Minor
          Found in lib/fluent/plugin/in_elasticsearch.rb and 1 other location - About 25 mins to fix
          lib/fluent/plugin/out_elasticsearch.rb on lines 644..652

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 29.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

          Identical blocks of code found in 3 locations. Consider refactoring.
          Open

                  host.merge!(user: @user, password: @password) if !host[:user] && @user
                  host.merge!(path: @path) if !host[:path] && @path
                end
          Severity: Minor
          Found in lib/fluent/plugin/in_elasticsearch.rb and 2 other locations - About 20 mins to fix
          lib/fluent/plugin/out_elasticsearch.rb on lines 706..708
          lib/fluent/plugin/out_elasticsearch_dynamic.rb on lines 104..106

          Duplicated Code

          Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

          Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

          When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

          Tuning

          This issue has a mass of 27.

          We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

          The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

          If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

          See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

          Refactorings

          Further Reading

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