Class: Cylons::Agent

Inherits:
Object
  • Object
show all
Includes:
ActiveAttr::MassAssignment, ActiveAttr::Model, ActiveModel::AttributeMethods, ActiveModel::Dirty, Associations, Attributes
Defined in:
lib/cylons/agent.rb

Overview

this is the local application remote which is dynamically built, from the registry

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Attributes

#read_attribute, #write_attribute

Class Attribute Details

.built ⇒ Object

Returns the value of attribute built.



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# File 'lib/cylons/agent.rb', line 18

def built
  @built
end

.schema ⇒ Object

Returns the value of attribute schema.



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# File 'lib/cylons/agent.rb', line 18

def schema
  @schema
end

Instance Attribute Details

#errors ⇒ Object

Returns the value of attribute errors.



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# File 'lib/cylons/agent.rb', line 131

def errors
  @errors
end

Class Method Details

.agent_namespace ⇒ Object 



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# File 'lib/cylons/agent.rb', line 54

def self.agent_namespace
  @agent_namespace ||= ::Cylons::RemoteDiscovery.namespace_for_agent(self.name)
end

.all ⇒ Object 



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# File 'lib/cylons/agent.rb', line 50

def self.all
  remote.all
end

.build_agent ⇒ Object 



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# File 'lib/cylons/agent.rb', line 27

def self.build_agent
  load_schema
  @built = true
end

.count ⇒ Object 



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# File 'lib/cylons/agent.rb', line 58

def self.count
  remote.count
end

.create(params) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 74

def self.create(params)
  remote.create(params)
end

.find(id) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 66

def self.find(id)
  remote.find(id)
end

.first ⇒ Object 



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# File 'lib/cylons/agent.rb', line 62

def self.first
  remote.first
end

.first_or_create(params) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 86

def self.first_or_create(params)
  result = remote.scope_by(params).first
  result = remote.create(params) unless result.present?
  result
end

.first_or_initialize(params) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 92

def self.first_or_initialize(params)
  result = remote.scope_by(params).first
  result ||= remote.new(params) unless result.present?
  result
end

.inherited(subklass) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 23

def self.inherited(subklass)
  ::Cylons.connect unless ::Cylons.connected?
end

.last ⇒ Object 



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# File 'lib/cylons/agent.rb', line 70

def self.last
  remote.last
end

.load_schema ⇒ Object 



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# File 'lib/cylons/agent.rb', line 36

def self.load_schema
  ::Cylons.logger.debug { "Loading schema for #{name}" }

  @schema = ::Cylons::RemoteRegistry.get_remote_schema(name.downcase)

  @schema.remote_attributes.each do |remote_attribute|
    attribute remote_attribute.to_sym
  end

  @schema.remote_associations.each do |association_hash|
    __send__("build_remote_#{association_hash[:association_type]}_association", association_hash)
  end
end

.remote ⇒ Object 



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# File 'lib/cylons/agent.rb', line 98

def self.remote
  remote_connection_failed! unless remote?

  build_agent unless built

  ::DCell::Node[agent_namespace][service_class_name.to_sym]
end

.remote? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cylons/agent.rb', line 106

def self.remote?
  agent_namespace && remote_application? && remote_service?
end

.remote_application? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cylons/agent.rb', line 110

def self.remote_application?
  ::DCell::Node.all.any?{ |node|
    node.id == agent_namespace
  }
end

.remote_connection_failed! ⇒ Object 



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# File 'lib/cylons/agent.rb', line 120

def self.remote_connection_failed!
  if self.unsucessful_remote_connection_attempts > ::Cylons.config.remote_connection_failure_threshold
    self.unsucessful_remote_connection_attempts = 0
    raise ::Cylons::CylonsRemoteServiceNotFound, "#{service_class_name} not found"
  else
    sleep(::Cylons.config.remote_connection_failure_timeout)
    self.unsucessful_remote_connection_attempts += 1
    remote_connection_failed! unless remote?
  end
end

.remote_service? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cylons/agent.rb', line 116

def self.remote_service?
  ::DCell::Node[agent_namespace].actors.include?(service_class_name.to_sym)
end

.scope_by(params) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 82

def self.scope_by(params)
  remote.scope_by(params)
end

.search(params) ⇒ Object 



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# File 'lib/cylons/agent.rb', line 78

def self.search(params)
  remote.search(params)
end

.service_class_name ⇒ Object 



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# File 'lib/cylons/agent.rb', line 32

def self.service_class_name
  "#{name}Service"
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/cylons/agent.rb', line 133

def destroy
  return unless self.attributes["id"]
  result = self.class.remote.destroy(self.attributes["id"])
end

#save ⇒ Object

have to manually update attributes if id wasnt set, i believe attr_accessible oddity so maybe can rip out later



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# File 'lib/cylons/agent.rb', line 139

def save
  if self.attributes["id"]
    result = self.class.remote.save(self.attributes["id"], self.attributes.with_indifferent_access.slice(*self.changed))
    self.changed_attributes.clear
  else
    result = self.class.remote.save(nil, self.attributes.with_indifferent_access.slice(*self.changed))

    if result.errors.messages.present?
      self.assign_attributes({:errors => result.errors})
    else
      self.assign_attributes(result.attributes)
    end
  end

  result
end