Module: Delayed::Backend::Base
- Included in:
- ActiveRecord::Job, ActiveRecord::Job::Failed, Redis::Job, Redis::Job::Failed
- Defined in:
- lib/delayed/backend/base.rb
Defined Under Namespace
Modules: ClassMethods
Constant Summary collapse
- ON_HOLD_LOCKED_BY =
'on hold'
- ON_HOLD_COUNT =
50
Class Method Summary collapse
Instance Method Summary collapse
- #batch? ⇒ Boolean
- #expired? ⇒ Boolean
- #failed? ⇒ Boolean (also: #failed)
- #full_name ⇒ Object
- #hold! ⇒ Object
- #initialize_defaults ⇒ Object
-
#invoke_job ⇒ Object
Moved into its own method so that new_relic can trace it.
- #locked? ⇒ Boolean
- #name ⇒ Object
- #on_hold? ⇒ Boolean
- #payload_object ⇒ Object
- #payload_object=(object) ⇒ Object
- #permanent_failure(error) ⇒ Object
-
#reschedule(error = nil, time = nil) ⇒ Object
Reschedule the job in the future (when a job fails).
- #reschedule_at ⇒ Object
- #unhold! ⇒ Object
-
#unlock ⇒ Object
Unlock this job (note: not saved to DB).
Class Method Details
.included(base) ⇒ Object
16 17 18 19 20 |
# File 'lib/delayed/backend/base.rb', line 16 def self.included(base) base.extend ClassMethods base.default_priority = Delayed::NORMAL_PRIORITY base.before_save :initialize_defaults end |
Instance Method Details
#batch? ⇒ Boolean
256 257 258 |
# File 'lib/delayed/backend/base.rb', line 256 def batch? payload_object.is_a?(Delayed::Batch::PerformableBatch) end |
#expired? ⇒ Boolean
158 159 160 |
# File 'lib/delayed/backend/base.rb', line 158 def expired? expires_at && (self.class.db_time_now >= expires_at) end |
#failed? ⇒ Boolean Also known as: failed
153 154 155 |
# File 'lib/delayed/backend/base.rb', line 153 def failed? failed_at end |
#full_name ⇒ Object
222 223 224 225 226 227 228 229 |
# File 'lib/delayed/backend/base.rb', line 222 def full_name obj = payload_object rescue nil if obj && obj.respond_to?(:full_name) obj.full_name else name end end |
#hold! ⇒ Object
283 284 285 286 287 288 |
# File 'lib/delayed/backend/base.rb', line 283 def hold! self.locked_by = ON_HOLD_LOCKED_BY self.locked_at = self.class.db_time_now self.attempts = ON_HOLD_COUNT self.save! end |
#initialize_defaults ⇒ Object
339 340 341 342 |
# File 'lib/delayed/backend/base.rb', line 339 def initialize_defaults self.queue ||= Delayed::Settings.queue self.run_at ||= self.class.db_time_now end |
#invoke_job ⇒ Object
Moved into its own method so that new_relic can trace it.
244 245 246 247 248 249 250 251 252 253 254 |
# File 'lib/delayed/backend/base.rb', line 244 def invoke_job Delayed::Worker.lifecycle.run_callbacks(:invoke_job, self) do Delayed::Job.in_delayed_job = true begin payload_object.perform ensure Delayed::Job.in_delayed_job = false ::ActiveRecord::Base.clear_active_connections! unless Rails.env.test? end end end |
#locked? ⇒ Boolean
266 267 268 |
# File 'lib/delayed/backend/base.rb', line 266 def locked? !!(self.locked_at || self.locked_by) end |
#name ⇒ Object
211 212 213 214 215 216 217 218 219 220 |
# File 'lib/delayed/backend/base.rb', line 211 def name @name ||= begin payload = payload_object if payload.respond_to?(:display_name) payload.display_name else payload.class.name end end end |
#on_hold? ⇒ Boolean
299 300 301 |
# File 'lib/delayed/backend/base.rb', line 299 def on_hold? self.locked_by == 'on hold' && self.locked_at && self.attempts == ON_HOLD_COUNT end |
#payload_object ⇒ Object
207 208 209 |
# File 'lib/delayed/backend/base.rb', line 207 def payload_object @payload_object ||= deserialize(self['handler'].untaint) end |
#payload_object=(object) ⇒ Object
231 232 233 234 235 236 237 238 239 240 241 |
# File 'lib/delayed/backend/base.rb', line 231 def payload_object=(object) @payload_object = object self['handler'] = object.to_yaml self['tag'] = if object.respond_to?(:tag) object.tag elsif object.is_a?(Module) "#{object}.perform" else "#{object.class}#perform" end end |
#permanent_failure(error) ⇒ Object
185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 |
# File 'lib/delayed/backend/base.rb', line 185 def permanent_failure(error) begin # notify the payload_object of a permanent failure obj = payload_object obj.on_permanent_failure(error) if obj && obj.respond_to?(:on_permanent_failure) rescue # don't allow a failed deserialization to prevent destroying the job end # optionally destroy the object destroy_self = true if Delayed::Worker.on_max_failures destroy_self = Delayed::Worker.on_max_failures.call(self, error) end if destroy_self self.destroy else self.fail! end end |
#reschedule(error = nil, time = nil) ⇒ Object
Reschedule the job in the future (when a job fails). Uses an exponential scale depending on the number of failed attempts.
164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 |
# File 'lib/delayed/backend/base.rb', line 164 def reschedule(error = nil, time = nil) begin obj = payload_object obj.on_failure(error) if obj && obj.respond_to?(:on_failure) rescue # don't allow a failed deserialization to prevent rescheduling end self.attempts += 1 if self.attempts >= (self.max_attempts || Delayed::Settings.max_attempts) permanent_failure error || "max attempts reached" elsif expired? permanent_failure error || "job has expired" else time ||= self.reschedule_at self.run_at = time self.unlock self.save! end end |
#reschedule_at ⇒ Object
270 271 272 273 274 275 276 277 278 279 280 281 |
# File 'lib/delayed/backend/base.rb', line 270 def reschedule_at new_time = self.class.db_time_now + (attempts ** 4) + 5 begin if payload_object.respond_to?(:reschedule_at) new_time = payload_object.reschedule_at( self.class.db_time_now, attempts) end rescue # TODO: just swallow errors from reschedule_at ? end new_time end |
#unhold! ⇒ Object
290 291 292 293 294 295 296 297 |
# File 'lib/delayed/backend/base.rb', line 290 def unhold! self.locked_by = nil self.locked_at = nil self.attempts = 0 self.run_at = [self.class.db_time_now, self.run_at].max self.failed_at = nil self.save! end |
#unlock ⇒ Object
Unlock this job (note: not saved to DB)
261 262 263 264 |
# File 'lib/delayed/backend/base.rb', line 261 def unlock self.locked_at = nil self.locked_by = nil end |