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libnetwork/portmapper/mapper.go

Summary

Maintainability
B
5 hrs
Test Coverage

Method PortMapper.MapRange has 79 lines of code (exceeds 50 allowed). Consider refactoring.
Open

func (pm *PortMapper) MapRange(container net.Addr, hostIP net.IP, hostPortStart, hostPortEnd int) (host net.Addr, retErr error) {
    pm.lock.Lock()
    defer pm.lock.Unlock()

    var (
Severity: Major
Found in libnetwork/portmapper/mapper.go - About 2 hrs to fix

    Method PortMapper.MapRange has 7 return statements (exceeds 4 allowed).
    Open

    func (pm *PortMapper) MapRange(container net.Addr, hostIP net.IP, hostPortStart, hostPortEnd int) (host net.Addr, retErr error) {
    pm.lock.Lock()
    defer pm.lock.Unlock()

    var (
    Severity: Major
    Found in libnetwork/portmapper/mapper.go - About 45 mins to fix

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

          case *net.TCPAddr:
        proto = "tcp"

        var err error
        allocatedHostPort, err = pm.allocator.RequestPortInRange(hostIP, proto, hostPortStart, hostPortEnd)
      Severity: Major
      Found in libnetwork/portmapper/mapper.go and 1 other location - About 1 hr to fix
      libnetwork/portmapper/mapper.go on lines 79..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 142.

      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

          case *net.UDPAddr:
        proto = "udp"

        var err error
        allocatedHostPort, err = pm.allocator.RequestPortInRange(hostIP, proto, hostPortStart, hostPortEnd)
      Severity: Major
      Found in libnetwork/portmapper/mapper.go and 1 other location - About 1 hr to fix
      libnetwork/portmapper/mapper.go on lines 60..78

      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 142.

      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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