ManageIQ/manageiq-providers-amazon

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app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb

Summary

Maintainability
A
2 hrs
Test Coverage
A
95%

Cyclomatic complexity for infer_related_vm_ems_refs_db! is too high. [14/11]
Open

  def infer_related_vm_ems_refs_db!
    changed_vms = manager.vms.where(:ems_ref => references(:vms)).includes(:key_pairs, :network_ports, :floating_ips,
                                                                           :orchestration_stack, :cloud_subnets)
    changed_vms.each do |vm|
      stack      = vm.orchestration_stack

Checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.

An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one. Blocks that are calls to builtin iteration methods (e.g. `ary.map{...}) also add one, others are ignored.

def each_child_node(*types)               # count begins: 1
  unless block_given?                     # unless: +1
    return to_enum(__method__, *types)

  children.each do |child|                # each{}: +1
    next unless child.is_a?(Node)         # unless: +1

    yield child if types.empty? ||        # if: +1, ||: +1
                   types.include?(child.type)
  end

  self
end                                       # total: 6

Use filter_map instead.
Open

      vm.cloud_subnets.collect(&:ems_ref).compact.each { |ems_ref| add_target!(:cloud_subnets, ems_ref) }

Use filter_map instead.
Open

    references(:service_instances).map { |x| service_instance(x) }.compact

Use filter_map instead.
Open

      vm.key_pairs.collect(&:name).compact.each do |name|

Use filter_map instead.
Open

      all_stacks.collect(&:ems_ref).compact.each { |ems_ref| add_target!(:orchestration_stacks, ems_ref) }

Use filter_map instead.
Open

      vm.floating_ips.collect(&:ems_ref).compact.each { |ems_ref| add_target!(:floating_ips, ems_ref) }

Use filter_map instead.
Open

    references(:service_offerings).map { |product_id| service_offering(product_id) }.compact

Use filter_map instead.
Open

      vm.network_ports.collect(&:ems_ref).compact.each do |ems_ref|

Similar blocks of code found in 6 locations. Consider refactoring.
Open

  def availability_zones
    return [] if references(:availability_zones).blank?

    multi_query(references(:availability_zones)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 54..59
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 80..85
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 90..95
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 150..155
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 160..167

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 30.

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 6 locations. Consider refactoring.
Open

  def cloud_subnets
    return [] if references(:cloud_subnets).blank?

    multi_query(references(:cloud_subnets)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 30..37
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 54..59
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 80..85
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 150..155
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 160..167

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 30.

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 6 locations. Consider refactoring.
Open

  def cloud_volume_snapshots
    return [] if references(:cloud_volume_snapshots).blank?

    multi_query(references(:cloud_volume_snapshots)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 30..37
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 54..59
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 80..85
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 90..95
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 150..155

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 30.

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 6 locations. Consider refactoring.
Open

  def cloud_networks
    return [] if references(:cloud_networks).blank?

    multi_query(references(:cloud_networks)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 30..37
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 54..59
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 90..95
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 150..155
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 160..167

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 30.

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 6 locations. Consider refactoring.
Open

  def referenced_images
    return [] if references(:miq_templates).blank?

    multi_query(references(:miq_templates)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 30..37
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 80..85
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 90..95
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 150..155
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 160..167

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 30.

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 6 locations. Consider refactoring.
Open

  def cloud_volumes
    return [] if references(:cloud_volumes).blank?

    multi_query(references(:cloud_volumes)) do |refs|
      hash_collection.new(
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 30..37
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 54..59
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 80..85
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 90..95
app/models/manageiq/providers/amazon/inventory/collector/target_collection.rb on lines 160..167

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 30.

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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