Class: Aws::RDS::EventSubscription

Inherits:
Object
  • Object
show all
Defined in:
gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb

Defined Under Namespace

Classes: Collection

Read-Only Attributes collapse

Actions collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options = {}) ⇒ EventSubscription #initialize(options = {}) ⇒ EventSubscription

Returns a new instance of EventSubscription.

Overloads:

  • #initialize(name, options = {}) ⇒ EventSubscription

    Parameters:

    • name (String)

    Options Hash (options):

  • #initialize(options = {}) ⇒ EventSubscription

    Options Hash (options):

    • :name (required, String)
    • :client (Client) 


22
23
24
25
26
27
28
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 22

def initialize(*args)
  options = Hash === args.last ? args.pop.dup : {}
  @name = extract_name(args, options)
  @data = options.delete(:data)
  @client = options.delete(:client) || Client.new(options)
  @waiter_block_warned = false
end

Instance Method Details

#add_subscriber(options = {}) ⇒ EventSubscription

Examples:

Request syntax with placeholder values


eventsubscription = event_subscription.add_subscriber({
  source_identifier: "String", # required
})

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Options Hash (options):

  • :source_identifier (required, String) —

    The identifier of the event source to be added.

    Constraints:

    • If the source type is a DB instance, a DBInstanceIdentifier value must be supplied.

    • If the source type is a DB cluster, a DBClusterIdentifier value must be supplied.

    • If the source type is a DB parameter group, a DBParameterGroupName value must be supplied.

    • If the source type is a DB security group, a DBSecurityGroupName value must be supplied.

    • If the source type is a DB snapshot, a DBSnapshotIdentifier value must be supplied.

    • If the source type is a DB cluster snapshot, a DBClusterSnapshotIdentifier value must be supplied.

    • If the source type is an RDS Proxy, a DBProxyName value must be supplied.

Returns:



275
276
277
278
279
280
281
282
283
284
285
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 275

def add_subscriber(options = {})
  options = options.merge(subscription_name: @name)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.add_source_identifier_to_subscription(options)
  end
  EventSubscription.new(
    name: resp.data.event_subscription.cust_subscription_id,
    data: resp.data.event_subscription,
    client: @client
  )
end

#client ⇒ Client

Returns:



108
109
110
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 108

def client
  @client
end

#create(options = {}) ⇒ EventSubscription

Examples:

Request syntax with placeholder values


eventsubscription = event_subscription.create({
  sns_topic_arn: "String", # required
  source_type: "String",
  event_categories: ["String"],
  source_ids: ["String"],
  enabled: false,
  tags: [
    {
      key: "String",
      value: "String",
    },
  ],
})

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Options Hash (options):

  • :sns_topic_arn (required, String) —

    The Amazon Resource Name (ARN) of the SNS topic created for event notification. SNS automatically creates the ARN when you create a topic and subscribe to it.

    RDS doesn't support FIFO (first in, first out) topics. For more information, see Message ordering and deduplication (FIFO topics) in the Amazon Simple Notification Service Developer Guide.

  • :source_type (String) —

    The type of source that is generating the events. For example, if you want to be notified of events generated by a DB instance, you set this parameter to db-instance. For RDS Proxy events, specify db-proxy. If this value isn't specified, all events are returned.

    Valid Values: db-instance | db-cluster | db-parameter-group | db-security-group | db-snapshot | db-cluster-snapshot | db-proxy

  • :event_categories (Array<String>) —

    A list of event categories for a particular source type (SourceType) that you want to subscribe to. You can see a list of the categories for a given source type in the "Amazon RDS event categories and event messages" section of the Amazon RDS User Guide or the Amazon Aurora User Guide . You can also see this list by using the DescribeEventCategories operation.

  • :source_ids (Array<String>) —

    The list of identifiers of the event sources for which events are returned. If not specified, then all sources are included in the response. An identifier must begin with a letter and must contain only ASCII letters, digits, and hyphens. It can't end with a hyphen or contain two consecutive hyphens.

    Constraints:

    • If SourceIds are supplied, SourceType must also be provided.

    • If the source type is a DB instance, a DBInstanceIdentifier value must be supplied.

    • If the source type is a DB cluster, a DBClusterIdentifier value must be supplied.

    • If the source type is a DB parameter group, a DBParameterGroupName value must be supplied.

    • If the source type is a DB security group, a DBSecurityGroupName value must be supplied.

    • If the source type is a DB snapshot, a DBSnapshotIdentifier value must be supplied.

    • If the source type is a DB cluster snapshot, a DBClusterSnapshotIdentifier value must be supplied.

    • If the source type is an RDS Proxy, a DBProxyName value must be supplied.

  • :enabled (Boolean) —

    Specifies whether to activate the subscription. If the event notification subscription isn't activated, the subscription is created but not active.

  • :tags (Array<Types::Tag>) —

    A list of tags. For more information, see Tagging Amazon RDS Resources in the Amazon RDS User Guide.

Returns:



381
382
383
384
385
386
387
388
389
390
391
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 381

def create(options = {})
  options = options.merge(subscription_name: @name)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.create_event_subscription(options)
  end
  EventSubscription.new(
    name: resp.data.event_subscription.cust_subscription_id,
    data: resp.data.event_subscription,
    client: @client
  )
end

#customer_aws_id ⇒ String

The Amazon Web Services customer account associated with the RDS event notification subscription.

Returns:

  • (String) 


41
42
43
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 41

def customer_aws_id
  data[:customer_aws_id]
end

#data ⇒ Types::EventSubscription

Returns the data for this Aws::RDS::EventSubscription. Calls Client#describe_event_subscriptions if #data_loaded? is false.

Returns:



130
131
132
133
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 130

def data
  load unless @data
  @data
end

#data_loaded? ⇒ Boolean

Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.

Returns:

  • (Boolean) —

    Returns true if this resource is loaded. Accessing attributes or #data on an unloaded resource will trigger a call to #load.



138
139
140
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 138

def data_loaded?
  !!@data
end

#delete(options = {}) ⇒ EventSubscription

Examples:

Request syntax with placeholder values


event_subscription.delete()

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Returns:



398
399
400
401
402
403
404
405
406
407
408
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 398

def delete(options = {})
  options = options.merge(subscription_name: @name)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.delete_event_subscription(options)
  end
  EventSubscription.new(
    name: resp.data.event_subscription.cust_subscription_id,
    data: resp.data.event_subscription,
    client: @client
  )
end

#enabled ⇒ Boolean

Specifies whether the subscription is enabled. True indicates the subscription is enabled.

Returns:

  • (Boolean) 


95
96
97
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 95

def enabled
  data[:enabled]
end

#event_categories_list ⇒ Array<String>

A list of event categories for the RDS event notification subscription.

Returns:

  • (Array<String>) 


88
89
90
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 88

def event_categories_list
  data[:event_categories_list]
end

#event_subscription_arn ⇒ String

The Amazon Resource Name (ARN) for the event subscription.

Returns:

  • (String) 


101
102
103
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 101

def event_subscription_arn
  data[:event_subscription_arn]
end

#load ⇒ self Also known as: reload

Loads, or reloads #data for the current Aws::RDS::EventSubscription. Returns self making it possible to chain methods.

event_subscription.reload.data

Returns:

  • (self) 


118
119
120
121
122
123
124
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 118

def load
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.describe_event_subscriptions(subscription_name: @name)
  end
  @data = resp.event_subscriptions_list[0]
  self
end

#modify(options = {}) ⇒ EventSubscription

Examples:

Request syntax with placeholder values


eventsubscription = event_subscription.modify({
  sns_topic_arn: "String",
  source_type: "String",
  event_categories: ["String"],
  enabled: false,
})

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Options Hash (options):

  • :sns_topic_arn (String) —

    The Amazon Resource Name (ARN) of the SNS topic created for event notification. The ARN is created by Amazon SNS when you create a topic and subscribe to it.

  • :source_type (String) —

    The type of source that is generating the events. For example, if you want to be notified of events generated by a DB instance, you would set this parameter to db-instance. For RDS Proxy events, specify db-proxy. If this value isn't specified, all events are returned.

    Valid Values: db-instance | db-cluster | db-parameter-group | db-security-group | db-snapshot | db-cluster-snapshot | db-proxy

  • :event_categories (Array<String>) —

    A list of event categories for a source type (SourceType) that you want to subscribe to. You can see a list of the categories for a given source type in Events in the Amazon RDS User Guide or by using the DescribeEventCategories operation.

  • :enabled (Boolean) —

    Specifies whether to activate the subscription.

Returns:



444
445
446
447
448
449
450
451
452
453
454
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 444

def modify(options = {})
  options = options.merge(subscription_name: @name)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.modify_event_subscription(options)
  end
  EventSubscription.new(
    name: resp.data.event_subscription.cust_subscription_id,
    data: resp.data.event_subscription,
    client: @client
  )
end

#name ⇒ String Also known as: cust_subscription_id

Returns:

  • (String) 


33
34
35
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 33

def name
  @name
end

#remove_subscriber(options = {}) ⇒ EventSubscription

Examples:

Request syntax with placeholder values


eventsubscription = event_subscription.remove_subscriber({
  source_identifier: "String", # required
})

Parameters:

  • options (Hash) (defaults to: {}) —

    ({})

Options Hash (options):

  • :source_identifier (required, String) —

    The source identifier to be removed from the subscription, such as the DB instance identifier for a DB instance or the name of a security group.

Returns:



467
468
469
470
471
472
473
474
475
476
477
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 467

def remove_subscriber(options = {})
  options = options.merge(subscription_name: @name)
  resp = Aws::Plugins::UserAgent.feature('resource') do
    @client.remove_source_identifier_from_subscription(options)
  end
  EventSubscription.new(
    name: resp.data.event_subscription.cust_subscription_id,
    data: resp.data.event_subscription,
    client: @client
  )
end

#sns_topic_arn ⇒ String

The topic ARN of the RDS event notification subscription.

Returns:

  • (String) 


47
48
49
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 47

def sns_topic_arn
  data[:sns_topic_arn]
end

#source_ids_list ⇒ Array<String>

A list of source IDs for the RDS event notification subscription.

Returns:

  • (Array<String>) 


81
82
83
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 81

def source_ids_list
  data[:source_ids_list]
end

#source_type ⇒ String

The source type for the RDS event notification subscription.

Returns:

  • (String) 


75
76
77
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 75

def source_type
  data[:source_type]
end

#status ⇒ String

The status of the RDS event notification subscription.

Constraints:

Can be one of the following: creating | modifying | deleting | active | no-permission | topic-not-exist

The status "no-permission" indicates that RDS no longer has permission to post to the SNS topic. The status "topic-not-exist" indicates that the topic was deleted after the subscription was created.

Returns:

  • (String) 


63
64
65
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 63

def status
  data[:status]
end

#subscription_creation_time ⇒ String

The time the RDS event notification subscription was created.

Returns:

  • (String) 


69
70
71
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 69

def subscription_creation_time
  data[:subscription_creation_time]
end

#wait_until(options = {}) {|resource| ... } ⇒ Resource

Deprecated.

Use [Aws::RDS::Client] #wait_until instead

Note:

The waiting operation is performed on a copy. The original resource remains unchanged.

Waiter polls an API operation until a resource enters a desired state.

Basic Usage

Waiter will polls until it is successful, it fails by entering a terminal state, or until a maximum number of attempts are made.

# polls in a loop until condition is true
resource.wait_until(options) {|resource| condition}

Example

instance.wait_until(max_attempts:10, delay:5) do |instance|
  instance.state.name == 'running'
end

Configuration

You can configure the maximum number of polling attempts, and the delay (in seconds) between each polling attempt. The waiting condition is set by passing a block to #wait_until:

# poll for ~25 seconds
resource.wait_until(max_attempts:5,delay:5) {|resource|...}

Callbacks

You can be notified before each polling attempt and before each delay. If you throw :success or :failure from these callbacks, it will terminate the waiter.

started_at = Time.now
# poll for 1 hour, instead of a number of attempts
proc = Proc.new do |attempts, response|
  throw :failure if Time.now - started_at > 3600
end

  # disable max attempts
instance.wait_until(before_wait:proc, max_attempts:nil) {...}

Handling Errors

When a waiter is successful, it returns the Resource. When a waiter fails, it raises an error.

begin
  resource.wait_until(...)
rescue Aws::Waiters::Errors::WaiterFailed
  # resource did not enter the desired state in time
end

attempts attempt in seconds invoked before each attempt invoked before each wait

Parameters:

  • options (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (options):

  • :max_attempts (Integer) — default: 10 —

    Maximum number of

  • :delay (Integer) — default: 10 —

    Delay between each

  • :before_attempt (Proc) — default: nil —

    Callback

  • :before_wait (Proc) — default: nil —

    Callback

Yield Parameters:

  • resource (Resource) —

    to be used in the waiting condition.

Returns:

  • (Resource) —

    if the waiter was successful

Raises:

  • (Aws::Waiters::Errors::FailureStateError) —

    Raised when the waiter terminates because the waiter has entered a state that it will not transition out of, preventing success.

    yet successful.

  • (Aws::Waiters::Errors::UnexpectedError) —

    Raised when an error is encountered while polling for a resource that is not expected.

  • (NotImplementedError) —

    Raised when the resource does not



222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
 
# File 'gems/aws-sdk-rds/lib/aws-sdk-rds/event_subscription.rb', line 222

def wait_until(options = {}, &block)
  self_copy = self.dup
  attempts = 0
  options[:max_attempts] = 10 unless options.key?(:max_attempts)
  options[:delay] ||= 10
  options[:poller] = Proc.new do
    attempts += 1
    if block.call(self_copy)
      [:success, self_copy]
    else
      self_copy.reload unless attempts == options[:max_attempts]
      :retry
    end
  end
  Aws::Plugins::UserAgent.feature('resource') do
    Aws::Waiters::Waiter.new(options).wait({})
  end
end