Method: Aws::IAM::Group#wait_until

Defined in:

lib/aws-sdk-iam/group.rb

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

Deprecated.

Use [Aws::IAM::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

# File 'lib/aws-sdk-iam/group.rb', line 201

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.metric('RESOURCE_MODEL') do
    Aws::Waiters::Waiter.new(options).wait({})
  end
end