Class: Google::Apis::PubsubV1::Subscription

Inherits:
Object
  • Object
show all
Includes:
Core::Hashable, Core::JsonObjectSupport
Defined in:
lib/google/apis/pubsub_v1/classes.rb,
lib/google/apis/pubsub_v1/representations.rb,
lib/google/apis/pubsub_v1/representations.rb

Overview

A subscription resource. If none of push_config or bigquery_config is set, then the subscriber will pull and ack messages using API methods. At most one of these fields may be set.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(**args) ⇒ Subscription

Returns a new instance of Subscription.



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1452

def initialize(**args)
   update!(**args)
end

Instance Attribute Details

#ack_deadline_seconds ⇒ Fixnum

The approximate amount of time (on a best-effort basis) Pub/Sub waits for the subscriber to acknowledge receipt before resending the message. In the interval after the message is delivered and before it is acknowledged, it is considered to be outstanding. During that time period, the message will not be redelivered (on a best-effort basis). For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call ModifyAckDeadline with the corresponding ack_id if using non-streaming pull or send the ack_id in a StreamingModifyAckDeadlineRequest if using streaming pull. The minimum custom deadline you can specify is 10 seconds. The maximum custom deadline you can specify is 600 seconds (10 minutes). If this parameter is 0, a default value of 10 seconds is used. For push delivery, this value is also used to set the request timeout for the call to the push endpoint. If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message. Corresponds to the JSON property ackDeadlineSeconds

Returns:

  • (Fixnum) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1317

def ack_deadline_seconds
  @ack_deadline_seconds
end

#bigquery_config ⇒ Google::Apis::PubsubV1::BigQueryConfig

Configuration for a BigQuery subscription. Corresponds to the JSON property bigqueryConfig

Returns:



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1322

def bigquery_config
  @bigquery_config
end

#dead_letter_policy ⇒ Google::Apis::PubsubV1::DeadLetterPolicy

Dead lettering is done on a best effort basis. The same message might be dead lettered multiple times. If validation on any of the fields fails at subscription creation/updation, the create/update subscription request will fail. Corresponds to the JSON property deadLetterPolicy

Returns:



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1330

def dead_letter_policy
  @dead_letter_policy
end

#detached ⇒ Boolean Also known as: detached?

Indicates whether the subscription is detached from its topic. Detached subscriptions don't receive messages from their topic and don't retain any backlog. Pull and StreamingPull requests will return FAILED_PRECONDITION. If the subscription is a push subscription, pushes to the endpoint will not be made. Corresponds to the JSON property detached

Returns:

  • (Boolean) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1339

def detached
  @detached
end

#enable_exactly_once_delivery ⇒ Boolean Also known as: enable_exactly_once_delivery?

If true, Pub/Sub provides the following guarantees for the delivery of a message with a given value of message_id on this subscription: * The message sent to a subscriber is guaranteed not to be resent before the message's acknowledgement deadline expires. * An acknowledged message will not be resent to a subscriber. Note that subscribers may still receive multiple copies of a message when enable_exactly_once_delivery is true if the message was published multiple times by a publisher client. These copies are considered distinct by Pub/Sub and have distinct message_id values. Corresponds to the JSON property enableExactlyOnceDelivery

Returns:

  • (Boolean) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1352

def enable_exactly_once_delivery
  @enable_exactly_once_delivery
end

#enable_message_ordering ⇒ Boolean Also known as: enable_message_ordering?

If true, messages published with the same ordering_key in PubsubMessage will be delivered to the subscribers in the order in which they are received by the Pub/Sub system. Otherwise, they may be delivered in any order. Corresponds to the JSON property enableMessageOrdering

Returns:

  • (Boolean) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1360

def enable_message_ordering
  @enable_message_ordering
end

#expiration_policy ⇒ Google::Apis::PubsubV1::ExpirationPolicy

A policy that specifies the conditions for resource expiration (i.e., automatic resource deletion). Corresponds to the JSON property expirationPolicy

Returns:



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1367

def expiration_policy
  @expiration_policy
end

#filter ⇒ String

An expression written in the Pub/Sub filter language. If non-empty, then only PubsubMessages whose attributes field matches the filter are delivered on this subscription. If empty, then no messages are filtered out. Corresponds to the JSON property filter

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1375

def filter
  @filter
end

#labels ⇒ Hash<String,String>

See Creating and managing labels . Corresponds to the JSON property labels

Returns:

  • (Hash<String,String>) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1381

def labels
  @labels
end

#message_retention_duration ⇒ String

How long to retain unacknowledged messages in the subscription's backlog, from the moment a message is published. If retain_acked_messages is true, then this also configures the retention of acknowledged messages, and thus configures how far back in time a Seek can be done. Defaults to 7 days. Cannot be more than 7 days or less than 10 minutes. Corresponds to the JSON property messageRetentionDuration

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1390

def message_retention_duration
  @message_retention_duration
end

#name ⇒ String

Required. The name of the subscription. It must have the format "projects/ project/subscriptions/subscription". subscription must start with a letter, and contain only letters ([A-Za-z]), numbers ([0-9]), dashes (-), underscores (_), periods (.), tildes (~), plus (+) or percent signs ( %). It must be between 3 and 255 characters in length, and it must not start with "goog". Corresponds to the JSON property name

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1400

def name
  @name
end

#push_config ⇒ Google::Apis::PubsubV1::PushConfig

Configuration for a push delivery endpoint. Corresponds to the JSON property pushConfig

Returns:



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1405

def push_config
  @push_config
end

#retain_acked_messages ⇒ Boolean Also known as: retain_acked_messages?

Indicates whether to retain acknowledged messages. If true, then messages are not expunged from the subscription's backlog, even if they are acknowledged, until they fall out of the message_retention_duration window. This must be true if you would like to Seek to a timestamp in the past to replay previously- acknowledged messages. Corresponds to the JSON property retainAckedMessages

Returns:

  • (Boolean) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1415

def retain_acked_messages
  @retain_acked_messages
end

#retry_policy ⇒ Google::Apis::PubsubV1::RetryPolicy

A policy that specifies how Cloud Pub/Sub retries message delivery. Retry delay will be exponential based on provided minimum and maximum backoffs. https://en.wikipedia.org/wiki/Exponential_backoff. RetryPolicy will be triggered on NACKs or acknowledgement deadline exceeded events for a given message. Retry Policy is implemented on a best effort basis. At times, the delay between consecutive deliveries may not match the configuration. That is, delay can be more or less than configured backoff. Corresponds to the JSON property retryPolicy

Returns:



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1427

def retry_policy
  @retry_policy
end

#state ⇒ String

Output only. An output-only field indicating whether or not the subscription can receive messages. Corresponds to the JSON property state

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1433

def state
  @state
end

#topic ⇒ String

Required. The name of the topic from which this subscription is receiving messages. Format is projects/project/topics/topic`. The value of this field will bedeleted-topicif the topic has been deleted. Corresponds to the JSON propertytopic`

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1440

def topic
  @topic
end

#topic_message_retention_duration ⇒ String

Output only. Indicates the minimum duration for which a message is retained after it is published to the subscription's topic. If this field is set, messages published to the subscription's topic in the last topic_message_retention_duration are always available to subscribers. See the message_retention_duration field in Topic. This field is set only in responses from the server; it is ignored if it is set in any requests. Corresponds to the JSON property topicMessageRetentionDuration

Returns:

  • (String) 


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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1450

def topic_message_retention_duration
  @topic_message_retention_duration
end

Instance Method Details

#update!(**args) ⇒ Object

Update properties of this object



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# File 'lib/google/apis/pubsub_v1/classes.rb', line 1457

def update!(**args)
  @ack_deadline_seconds = args[:ack_deadline_seconds] if args.key?(:ack_deadline_seconds)
  @bigquery_config = args[:bigquery_config] if args.key?(:bigquery_config)
  @dead_letter_policy = args[:dead_letter_policy] if args.key?(:dead_letter_policy)
  @detached = args[:detached] if args.key?(:detached)
  @enable_exactly_once_delivery = args[:enable_exactly_once_delivery] if args.key?(:enable_exactly_once_delivery)
  @enable_message_ordering = args[:enable_message_ordering] if args.key?(:enable_message_ordering)
  @expiration_policy = args[:expiration_policy] if args.key?(:expiration_policy)
  @filter = args[:filter] if args.key?(:filter)
  @labels = args[:labels] if args.key?(:labels)
  @message_retention_duration = args[:message_retention_duration] if args.key?(:message_retention_duration)
  @name = args[:name] if args.key?(:name)
  @push_config = args[:push_config] if args.key?(:push_config)
  @retain_acked_messages = args[:retain_acked_messages] if args.key?(:retain_acked_messages)
  @retry_policy = args[:retry_policy] if args.key?(:retry_policy)
  @state = args[:state] if args.key?(:state)
  @topic = args[:topic] if args.key?(:topic)
  @topic_message_retention_duration = args[:topic_message_retention_duration] if args.key?(:topic_message_retention_duration)
end