Class: Appsignal::Hooks::Hook

Inherits:
Object
  • Object
show all
Defined in:
lib/appsignal/hooks.rb

Direct Known Subclasses

SequelHook

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Hook

Returns a new instance of Hook.



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# File 'lib/appsignal/hooks.rb', line 27

def initialize
  @installed = false
end

Class Method Details

.register(name, hook = self) ⇒ Object 



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# File 'lib/appsignal/hooks.rb', line 23

def self.register(name, hook = self)
  Appsignal::Hooks.register(name, hook.new)
end

Instance Method Details

#dependencies_present? ⇒ Boolean

Returns:

  • (Boolean)

Raises:

  • (NotImplementedError) 


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# File 'lib/appsignal/hooks.rb', line 52

def dependencies_present?
  raise NotImplementedError
end

#install ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/appsignal/hooks.rb', line 56

def install
  raise NotImplementedError
end

#installed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/appsignal/hooks.rb', line 48

def installed?
  @installed
end

#try_to_install(name) ⇒ Object 



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# File 'lib/appsignal/hooks.rb', line 31

def try_to_install(name)
  return unless dependencies_present?
  return if installed?

  Appsignal.internal_logger.debug("Installing #{name} hook")
  begin
    install
    @installed = true
  rescue => ex
    logger = Appsignal.internal_logger
    logger.error(
      "Error while installing #{name} hook: #{ex.class}: #{ex.message}\n" \
        "#{ex.backtrace.join("\n")}"
    )
  end
end