Class: HyperMesh::Connection

Inherits:
ActiveRecord::Base show all
Extended by:
AutoCreate
Defined in:
lib/synchromesh/connection.rb

Defined Under Namespace

Classes: QueuedMessage

Constant Summary

Constants included from ActiveRecord::ClassMethods

ActiveRecord::ClassMethods::SERVER_METHODS

Class Attribute Summary collapse

Attributes inherited from ActiveRecord::Base

#acting_user

Attributes included from ActiveRecord::InstanceMethods

#backing_record

Class Method Summary collapse

Instance Method Summary collapse

Methods included from AutoCreate

create_table, needs_init?

Methods inherited from ActiveRecord::Base

#<=>, _synchromesh_scope_args_check, #all, #all=, #all_changed?, #any_changed?, belongs_to, belongs_to_without_reactive_record_add_is_method, #check_permission_with_acting_user, #create, #create_permitted?, #default_scope, #destroy_permitted?, do_not_synchronize, do_not_synchronize?, #do_not_synchronize?, #finder_method, #method_missing, #none_changed?, #only_changed?, #pre_synchromesh_default_scope, #pre_synchromesh_method_missing, pre_synchromesh_scope, public_columns_hash, reflect_on_aggregation, reflect_on_all_aggregations, reflect_on_all_associations, reflect_on_association, #scope, #server_method, #synchromesh_after_change, #synchromesh_after_create, #synchromesh_after_destroy, #unscoped, #update, #update_attribute, #update_permitted?, #view_permitted?

Methods included from ActiveRecord::ClassMethods

#_react_param_conversion, #abstract_class=, #abstract_class?, #all, #all=, #base_class, #column_names, #columns_hash, #composed_of, #define_attribute_methods, #enum, #find, #find_by, #inheritance_column, #inheritance_column=, #method_missing, #model_name, #primary_key, #primary_key=, #scope, #server_method, #server_methods

Methods included from ActiveRecord::InstanceMethods

#==, #attributes, #changed?, #destroy, #destroyed?, #dup, #errors, #id, #id=, #initialize, #itself, #load, #method_missing, #method_missing_warning, #model_name, #new?, #primary_key, #revert, #save, #saving?, #type, #type=

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class ActiveRecord::Base

Class Attribute Details

.transport ⇒ Object

Returns the value of attribute transport.



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# File 'lib/synchromesh/connection.rb', line 104

def transport
  @transport
end

Class Method Details

.active ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 106

def active
  if HyperMesh.on_server?
    expired.delete_all
    refresh_connections if needs_refresh?
  end
  all.pluck(:channel).uniq
end

.build_tables ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 58

def self.build_tables
  create_table(force: true) do |t|
    t.string   :channel
    t.string   :session
    t.datetime :created_at
    t.datetime :expires_at
    t.datetime :refresh_at
  end
  QueuedMessage.create_table(force: true) do |t|
    t.text    :data
    t.integer :connection_id
  end
end

.connect_to_transport(channel, session, root_path) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 133

def connect_to_transport(channel, session, root_path)
  self.root_path = root_path
  if (connection = find_by(channel: channel, session: session))
    messages = connection.messages.pluck(:data)
    connection.destroy
  else
    messages = []
  end
  open(channel)
  messages
end

.disconnect(channel) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 145

def disconnect(channel)
  find_by(channel: channel, session: nil).destroy
end

.needs_refresh? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/synchromesh/connection.rb', line 87

def self.needs_refresh?
  exists?(['refresh_at IS NOT NULL AND refresh_at < ?', Time.zone.now])
end

.open(channel, session = nil, root_path = nil) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 114

def open(channel, session = nil, root_path = nil)
  self.root_path = root_path
  find_or_create_by(channel: channel, session: session)
end

.read(session, root_path) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 126

def read(session, root_path)
  self.root_path = root_path
  where(session: session)
    .update_all(expires_at: Time.now + transport.expire_polled_connection_in)
  QueuedMessage.for_session(session).destroy_all.pluck(:data)
end

.refresh_connections ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 159

def refresh_connections
  refresh_started_at = Time.zone.now
  channels = transport.refresh_channels
  next_refresh = refresh_started_at + transport.refresh_channels_every
  channels.each do |channel|
    find_by(channel: channel, session: nil).update(refresh_at: next_refresh)
  end
  inactive.delete_all
end

.root_path ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 153

def root_path
  QueuedMessage.root_path
rescue
  nil
end

.root_path=(path) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 149

def root_path=(path)
  QueuedMessage.root_path = path if path
end

.send_to_channel(channel, data) ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 119

def send_to_channel(channel, data)
  pending_for(channel).each do |connection|
    QueuedMessage.create(data: data, synchromesh_connection: connection)
  end
  transport.send(channel, data) if exists?(channel: channel, session: nil)
end

Instance Method Details

#transport ⇒ Object 



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# File 'lib/synchromesh/connection.rb', line 91

def transport
  self.class.transport
end