Class: Etcdv3::Watch

Inherits:
Object show all
Includes:
GRPC::Core::TimeConsts
Defined in:
lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/etcdv3-0.11.5/lib/etcdv3/watch.rb

Instance Method Summary collapse

Methods included from GRPC::Core::TimeConsts

from_relative_time

Constructor Details

#initialize(hostname, credentials, timeout, metadata = {}) ⇒ Watch

Returns a new instance of Watch.



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/etcdv3-0.11.5/lib/etcdv3/watch.rb', line 5

def initialize(hostname, credentials, timeout, metadata = {})
  @stub = Etcdserverpb::Watch::Stub.new(hostname, credentials)
  @timeout = timeout
  @metadata = metadata
end

Instance Method Details

#deadline(timeout) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/etcdv3-0.11.5/lib/etcdv3/watch.rb', line 29

def deadline(timeout)
  from_relative_time(timeout || @timeout)
end

#watch(key, range_end, start_revision, block, timeout: nil) ⇒ Object 



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# File 'lib/rubypitaya/app-template/vendor/bundle/ruby/3.1.0/gems/etcdv3-0.11.5/lib/etcdv3/watch.rb', line 11

def watch(key, range_end, start_revision, block, timeout: nil)
  create_req = Etcdserverpb::WatchCreateRequest.new(key: key)
  create_req.range_end = range_end if range_end
  create_req.start_revision = start_revision if start_revision
  watch_req = Etcdserverpb::WatchRequest.new(create_request: create_req)
  events = nil
  @stub.watch([watch_req], metadata: @metadata, deadline: deadline(timeout)).each do |resp|
    next if resp.events.empty?
    if block
      block.call(resp.events)
    else
      events = resp.events
      break
    end
  end
  events
end