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crowbar_framework/app/models/database_service.rb

Summary

Maintainability
D
1 day
Test Coverage

Method apply_role_pre_chef_call has a Cognitive Complexity of 27 (exceeds 5 allowed). Consider refactoring.
Open

  def apply_role_pre_chef_call(old_role, role, all_nodes)
    @logger.debug("Database apply_role_pre_chef_call: entering #{all_nodes.inspect}")
    return if all_nodes.empty?

    database_elements, database_nodes, database_ha_enabled = role_expand_elements(role, "database-server")
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb - About 3 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 validate_ha_attributes has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
Open

  def validate_ha_attributes(attributes, cluster)
    storage_mode = attributes["ha"]["storage"]["mode"]
    role = available_clusters[cluster]

    case attributes["sql_engine"]
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb - About 3 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 apply_role_pre_chef_call has 47 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def apply_role_pre_chef_call(old_role, role, all_nodes)
    @logger.debug("Database apply_role_pre_chef_call: entering #{all_nodes.inspect}")
    return if all_nodes.empty?

    database_elements, database_nodes, database_ha_enabled = role_expand_elements(role, "database-server")
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb - About 1 hr to fix

Method validate_ha_attributes has 46 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def validate_ha_attributes(attributes, cluster)
    storage_mode = attributes["ha"]["storage"]["mode"]
    role = available_clusters[cluster]

    case attributes["sql_engine"]
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb - About 1 hr to fix

Method validate_proposal_after_save has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def validate_proposal_after_save(proposal)
    validate_one_for_role proposal, "database-server"

    attributes = proposal["attributes"][@bc_name]
    deployment = proposal["deployment"][@bc_name]
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb - About 1 hr to fix

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

  def validate_proposal_after_save(proposal)
    validate_one_for_role proposal, "database-server"

    attributes = proposal["attributes"][@bc_name]
    deployment = proposal["deployment"][@bc_name]
Severity: Minor
Found in crowbar_framework/app/models/database_service.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

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

        if attributes["ha"]["storage"]["shared"]["device"].blank?
          validation_error I18n.t(
            "barclamp.#{@bc_name}.validation.no_device"
          )
        end
Severity: Minor
Found in crowbar_framework/app/models/database_service.rb and 1 other location - About 40 mins to fix
crowbar_framework/app/models/rabbitmq_service.rb on lines 185..190

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 37.

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 5 locations. Consider refactoring.
Open

    if nodes.size >= 1
      controller = nodes.find { |n| n.intended_role == "controller" } || nodes.first
      base["deployment"]["database"]["elements"] = {
        "database-server" => [controller[:fqdn]]
Severity: Major
Found in crowbar_framework/app/models/database_service.rb and 4 other locations - About 25 mins to fix
crowbar_framework/app/models/glance_service.rb on lines 59..62
crowbar_framework/app/models/horizon_service.rb on lines 58..61
crowbar_framework/app/models/keystone_service.rb on lines 60..63
crowbar_framework/app/models/watcher_service.rb on lines 58..61

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

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