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lib/mongo/session.rb

Summary

Maintainability
F
5 days
Test Coverage

File session.rb has 563 lines of code (exceeds 250 allowed). Consider refactoring.
Open

require 'mongo/session/session_pool'
require 'mongo/session/server_session'

module Mongo
Severity: Major
Found in lib/mongo/session.rb - About 1 day to fix

    Class Session has 51 methods (exceeds 20 allowed). Consider refactoring.
    Open

      class Session
    extend Forwardable
    include Retryable
    include Loggable
    include ClusterTime::Consumer
    Severity: Major
    Found in lib/mongo/session.rb - About 7 hrs to fix

      Method with_transaction has a Cognitive Complexity of 44 (exceeds 5 allowed). Consider refactoring.
      Open

          def with_transaction(options=nil)
      # Non-configurable 120 second timeout for the entire operation
      deadline = Utils.monotonic_time + 120
      transaction_in_progress = false
      loop do
      Severity: Minor
      Found in lib/mongo/session.rb - About 6 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

      Method add_txn_opts! has a Cognitive Complexity of 36 (exceeds 5 allowed). Consider refactoring.
      Open

          def add_txn_opts!(command, read)
      command.tap do |c|
        # The read concern should be added to any command that starts a transaction.
        if starting_transaction?
          # https://jira.mongodb.org/browse/SPEC-1161: transaction's
      Severity: Minor
      Found in lib/mongo/session.rb - About 5 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

      Method with_transaction has 78 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

          def with_transaction(options=nil)
      # Non-configurable 120 second timeout for the entire operation
      deadline = Utils.monotonic_time + 120
      transaction_in_progress = false
      loop do
      Severity: Major
      Found in lib/mongo/session.rb - About 3 hrs to fix

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

            def commit_transaction(options=nil)
      QueryCache.clear
      check_if_ended!
      check_if_no_transaction!
        Severity: Minor
        Found in lib/mongo/session.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

        Method commit_transaction has 51 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

            def commit_transaction(options=nil)
      QueryCache.clear
      check_if_ended!
      check_if_no_transaction!
        Severity: Major
        Found in lib/mongo/session.rb - About 2 hrs to fix

          Method abort_transaction has 43 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

              def abort_transaction
      QueryCache.clear

      check_if_ended!
      check_if_no_transaction!
          Severity: Minor
          Found in lib/mongo/session.rb - About 1 hr to fix

            Method add_txn_opts! has 41 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

                def add_txn_opts!(command, read)
      command.tap do |c|
        # The read concern should be added to any command that starts a transaction.
        if starting_transaction?
          # https://jira.mongodb.org/browse/SPEC-1161: transaction's
            Severity: Minor
            Found in lib/mongo/session.rb - About 1 hr to fix

              Method suppress_read_write_concern! has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
              Open

                  def suppress_read_write_concern!(command)
      command.tap do |c|
        next unless in_transaction?

        c.delete(:readConcern) unless starting_transaction?
              Severity: Minor
              Found in lib/mongo/session.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 start_transaction has 30 lines of code (exceeds 25 allowed). Consider refactoring.
              Open

                  def start_transaction(options = nil)
      check_transactions_supported!

      if options
        Lint.validate_read_concern_option(options[:read_concern])
              Severity: Minor
              Found in lib/mongo/session.rb - About 1 hr to fix

                Method end_session has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
                Open

                    def end_session
      if !ended? && @client
        if within_states?(TRANSACTION_IN_PROGRESS_STATE)
          begin
            abort_transaction
                Severity: Minor
                Found in lib/mongo/session.rb - About 55 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 process has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
                Open

                    def process(result)
      unless implicit?
        set_operation_time(result)
        if cluster_time_doc = result.cluster_time
          advance_cluster_time(cluster_time_doc)
                Severity: Minor
                Found in lib/mongo/session.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 validate_read_preference! has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
                Open

                    def validate_read_preference!(command)
      return unless in_transaction?
      return unless command['$readPreference']

      mode = command['$readPreference']['mode'] || command['$readPreference'][:mode]
                Severity: Minor
                Found in lib/mongo/session.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

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

                    def initialize(server_session, client, options = {})
      if options[:causal_consistency] && options[:snapshot]
        raise ArgumentError, ':causal_consistency and :snapshot options cannot be both set on a session'
      end
                Severity: Minor
                Found in lib/mongo/session.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

                Method start_transaction has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
                Open

                    def start_transaction(options = nil)
      check_transactions_supported!

      if options
        Lint.validate_read_concern_option(options[:read_concern])
                Severity: Minor
                Found in lib/mongo/session.rb - About 25 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 check_transactions_supported! has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
                Open

                    def check_transactions_supported!
      raise Mongo::Error::TransactionsNotSupported, "standalone topology" if cluster.single?

      cluster.next_primary.with_connection do |conn|
        if cluster.replica_set? && !conn.features.transactions_enabled?
                Severity: Minor
                Found in lib/mongo/session.rb - About 25 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

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