Class: AWS::Flow::ActivityTaskPoller
- Inherits:
-
Object
- Object
- AWS::Flow::ActivityTaskPoller
- Defined in:
- lib/aws/decider/task_poller.rb
Instance Method Summary collapse
- #execute(task) ⇒ Object
-
#initialize(service, domain, task_list, activity_definition_map, options = nil) ⇒ ActivityTaskPoller
constructor
A new instance of ActivityTaskPoller.
- #poll_and_process_single_task(use_forking = true) ⇒ Object
- #process_single_task(task) ⇒ Object
- #respond_activity_task_canceled(task_token, message) ⇒ Object
- #respond_activity_task_canceled_with_retry(task_token, message) ⇒ Object
- #respond_activity_task_failed(task_token, reason, details) ⇒ Object
- #respond_activity_task_failed_with_retry(task_token, reason, details) ⇒ Object
Constructor Details
#initialize(service, domain, task_list, activity_definition_map, options = nil) ⇒ ActivityTaskPoller
Returns a new instance of ActivityTaskPoller.
83 84 85 86 87 88 89 90 91 92 93 94 |
# File 'lib/aws/decider/task_poller.rb', line 83 def initialize(service, domain, task_list, activity_definition_map, =nil) @service = service @domain = domain @task_list = task_list @activity_definition_map = activity_definition_map @logger = .logger if @logger ||= Utilities::LogFactory.make_logger(self, "debug") max_workers = .execution_workers if max_workers = 20 if (max_workers.nil? || max_workers.zero?) @executor = ForkingExecutor.new(:max_workers => max_workers, :logger => @logger) end |
Instance Method Details
#execute(task) ⇒ Object
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 |
# File 'lib/aws/decider/task_poller.rb', line 96 def execute(task) activity_type = task.activity_type begin context = ActivityExecutionContext.new(@service, @domain, task) activity_implementation = @activity_definition_map[activity_type] raise "This activity worker was told to work on activity type #{activity_type.name}, but this activity worker only knows how to work on #{@activity_definition_map.keys.map(&:name).join' '}" unless activity_implementation output = activity_implementation.execute(task.input, context) @logger.debug "Responding on task_token #{task.task_token} for task #{task}" if ! activity_implementation..manual_completion @service.respond_activity_task_completed(:task_token => task.task_token, :result => output) end rescue ActivityFailureException => e respond_activity_task_failed_with_retry(task.task_token, e., e.details) end #TODO all the completion stuffs end |
#poll_and_process_single_task(use_forking = true) ⇒ Object
161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 |
# File 'lib/aws/decider/task_poller.rb', line 161 def poll_and_process_single_task(use_forking = true) @poll_semaphore ||= SuspendableSemaphore.new @poll_semaphore.acquire semaphore_needs_release = true @logger.debug "before the poll\n\n" begin task = @domain.activity_tasks.poll_for_single_task(@task_list) @logger.error "got a task, #{task.activity_type.name}" @logger.error "The task token I got was: #{task.task_token}" rescue Exception => e @logger.debug "I have not been able to poll successfully, and am now bailing out, with error #{e}" @poll_semaphore.release return false end if task.nil? "Still polling at #{Time.now}, but didn't get anything" @logger.debug "Still polling at #{Time.now}, but didn't get anything" @poll_semaphore.release return false end semaphore_needs_release = false if use_forking @executor.execute { process_single_task(task) } else process_single_task(task) end # process_single_task(task) @logger.debug "finished executing the task" return true end |
#process_single_task(task) ⇒ Object
137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 |
# File 'lib/aws/decider/task_poller.rb', line 137 def process_single_task(task) @service = AWS::SimpleWorkflow.new.client.with_http_handler(AWS::Core::Http::NetHttpHandler.new(:ssl_ca_file => AWS.config.ssl_ca_file)) begin begin execute(task) rescue CancellationException => e respond_activity_task_canceled_with_retry(task.task_token, e.) rescue Exception => e @logger.error "Got an error, #{e.}, while executing #{task.activity_type.name}" @logger.error "Full stack trace: #{e.backtrace}" respond_activity_task_failed_with_retry(task.task_token, e., e.backtrace) #Do rescue stuff ensure @poll_semaphore.release end rescue Exception => e semaphore_needs_release = true @logger.debug "Got into the other error mode" raise e ensure @poll_semaphore.release if semaphore_needs_release end end |
#respond_activity_task_canceled(task_token, message) ⇒ Object
128 129 130 |
# File 'lib/aws/decider/task_poller.rb', line 128 def respond_activity_task_canceled(task_token, ) @service.respond_activity_task_canceled({:task_token => task_token, :details => }) end |
#respond_activity_task_canceled_with_retry(task_token, message) ⇒ Object
121 122 123 124 125 126 |
# File 'lib/aws/decider/task_poller.rb', line 121 def respond_activity_task_canceled_with_retry(task_token, ) if @failure_retrier.nil? respond_activity_task_canceled(task_token, ) end #TODO Set up other stuff to do if we have it end |
#respond_activity_task_failed(task_token, reason, details) ⇒ Object
132 133 134 135 |
# File 'lib/aws/decider/task_poller.rb', line 132 def respond_activity_task_failed(task_token, reason, details) @logger.debug "The task token to be reported on is #{task_token}" @service.respond_activity_task_failed(:task_token => task_token, :reason => reason.to_s, :details => details.to_s) end |
#respond_activity_task_failed_with_retry(task_token, reason, details) ⇒ Object
113 114 115 116 117 118 119 |
# File 'lib/aws/decider/task_poller.rb', line 113 def respond_activity_task_failed_with_retry(task_token, reason, details) #TODO Set up this variable if @failure_retrier.nil? respond_activity_task_failed(task_token, reason, details) #TODO Set up other stuff to do if we have it end end |