Class: OmfCommon::Comm::AMQP::Communicator
- Inherits:
-
OmfCommon::Comm
- Object
- OmfCommon::Comm
- OmfCommon::Comm::AMQP::Communicator
- Defined in:
- lib/omf_common/comm/amqp/amqp_communicator.rb
Instance Attribute Summary collapse
-
#channel ⇒ Object
readonly
end.
Instance Method Summary collapse
- #broadcast_file(file_path, topic_name = nil, opts = {}, &block) ⇒ Object
- #conn_info ⇒ Object
-
#create_topic(topic, opts = {}) ⇒ Object
Create a new pubsub topic with additional configuration.
-
#delete_topic(topic, &block) ⇒ Object
Delete a pubsub topic.
-
#disconnect(opts = {}) ⇒ Object
Shut down comms layer.
-
#init(opts = {}) ⇒ Object
Initialize comms layer.
-
#on_connected(&block) ⇒ Object
TODO: Should be thread safe and check if already connected.
-
#on_reconnect(key, &block) ⇒ Object
register callbacks to be called when the underlying AMQP layer needs to reconnect to the AMQP server.
- #receive_file(topic_url, file_path = nil, opts = {}, &block) ⇒ Object
- #string_to_topic_address(a_string) ⇒ Object
Methods inherited from OmfCommon::Comm
init, instance, #local_address, #local_topic, #on_interrupted, #options, #subscribe
Instance Attribute Details
#channel ⇒ Object (readonly)
end
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 30 def channel @channel end |
Instance Method Details
#broadcast_file(file_path, topic_name = nil, opts = {}, &block) ⇒ Object
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 114 def broadcast_file(file_path, topic_name = nil, opts = {}, &block) topic_name ||= SecureRandom.uuid require 'omf_common/comm/amqp/amqp_file_transfer' OmfCommon::Comm::AMQP::FileBroadcaster.new(file_path, @channel, topic_name, opts, &block) "bdcst:#{@address_prefix + topic_name}" end |
#conn_info ⇒ Object
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 51 def conn_info { proto: :amqp, user: ::AMQP.settings[:user], domain: ::AMQP.settings[:host] } end |
#create_topic(topic, opts = {}) ⇒ Object
Create a new pubsub topic with additional configuration
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 84 def create_topic(topic, opts = {}) raise "Topic can't be nil or empty" if topic.nil? || topic.to_s.empty? opts = opts.dup opts[:communicator] = self topic = topic.to_s if topic.start_with? 'amqp:' # absolute address unless topic.start_with? @address_prefix raise "Cannot subscribe to a topic from different domain (#{topic}) - #{@address_prefix}" end opts[:address] = topic topic = topic.split(@address_prefix).last else opts[:address] = @address_prefix + topic end OmfCommon::Comm::AMQP::Topic.create(topic, opts) end |
#delete_topic(topic, &block) ⇒ Object
Delete a pubsub topic
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 105 def delete_topic(topic, &block) # FIXME CommProvider? if t = OmfCommon::CommProvider::AMQP::Topic.find(topic) t.release else warn "Attempt to delete unknown topic '#{topic}" end end |
#disconnect(opts = {}) ⇒ Object
Shut down comms layer
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 60 def disconnect(opts = {}) info "Disconnecting..." end |
#init(opts = {}) ⇒ Object
Initialize comms layer
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 34 def init(opts = {}) @opts = { #:ssl (Hash) TLS (SSL) parameters to use. heartbeat: 20, # (Fixnum) - default: 0 Connection heartbeat, in seconds. 0 means no heartbeat. Can also be configured server-side starting with RabbitMQ 3.0. #:on_tcp_connection_failure (#call) - A callable object that will be run if connection to server fails #:on_possible_authentication_failure (#call) - A callable object that will be run if authentication fails (see Authentication failure section) reconnect_delay: 20 # (Fixnum) - Delay in seconds before attempting reconnect on detected failure }.merge(opts) unless (@url = @opts.delete(:url)) raise "Missing 'url' option for AQMP layer" end @address_prefix = @url + '/frcp.' _connect() super end |
#on_connected(&block) ⇒ Object
TODO: Should be thread safe and check if already connected
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 65 def on_connected(&block) @on_connected_procs << block end |
#on_reconnect(key, &block) ⇒ Object
register callbacks to be called when the underlying AMQP layer needs to reconnect to the AMQP server. This may require some additional repairs. If ‘block’ is nil, the callback is removed
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 73 def on_reconnect(key, &block) if block.nil? @on_reconnect.delete(key) else @on_reconnect[key] = block end end |
#receive_file(topic_url, file_path = nil, opts = {}, &block) ⇒ Object
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 121 def receive_file(topic_url, file_path = nil, opts = {}, &block) if topic_url.start_with? @address_prefix topic_url = topic_url[@address_prefix.length .. -1] end require 'omf_common/comm/amqp/amqp_file_transfer' file_path ||= File.join(Dir.tmpdir, Dir::Tmpname.make_tmpname('bdcast', '.xxx')) FileReceiver.new(file_path, @channel, topic_url, opts, &block) end |
#string_to_topic_address(a_string) ⇒ Object
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# File 'lib/omf_common/comm/amqp/amqp_communicator.rb', line 55 def string_to_topic_address(a_string) @address_prefix+a_string end |