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
249 250 251 |
# File 'lib/delayed/backend/base.rb', line 249 def batch? payload_object.is_a?(Delayed::Batch::PerformableBatch) end |
#expired? ⇒ Boolean
151 152 153 |
# File 'lib/delayed/backend/base.rb', line 151 def expired? expires_at && (self.class.db_time_now >= expires_at) end |
#failed? ⇒ Boolean Also known as: failed
146 147 148 |
# File 'lib/delayed/backend/base.rb', line 146 def failed? failed_at end |
#full_name ⇒ Object
215 216 217 218 219 220 221 222 |
# File 'lib/delayed/backend/base.rb', line 215 def full_name obj = payload_object rescue nil if obj && obj.respond_to?(:full_name) obj.full_name else name end end |
#hold! ⇒ Object
276 277 278 279 280 281 |
# File 'lib/delayed/backend/base.rb', line 276 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
329 330 331 332 |
# File 'lib/delayed/backend/base.rb', line 329 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.
237 238 239 240 241 242 243 244 245 246 247 |
# File 'lib/delayed/backend/base.rb', line 237 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
259 260 261 |
# File 'lib/delayed/backend/base.rb', line 259 def locked? !!(self.locked_at || self.locked_by) end |
#name ⇒ Object
204 205 206 207 208 209 210 211 212 213 |
# File 'lib/delayed/backend/base.rb', line 204 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
292 293 294 |
# File 'lib/delayed/backend/base.rb', line 292 def on_hold? self.locked_by == 'on hold' && self.locked_at && self.attempts == ON_HOLD_COUNT end |
#payload_object ⇒ Object
200 201 202 |
# File 'lib/delayed/backend/base.rb', line 200 def payload_object @payload_object ||= deserialize(self['handler'].untaint) end |
#payload_object=(object) ⇒ Object
224 225 226 227 228 229 230 231 232 233 234 |
# File 'lib/delayed/backend/base.rb', line 224 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
178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 |
# File 'lib/delayed/backend/base.rb', line 178 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 DeserializationError # 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.
157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 |
# File 'lib/delayed/backend/base.rb', line 157 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
263 264 265 266 267 268 269 270 271 272 273 274 |
# File 'lib/delayed/backend/base.rb', line 263 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
283 284 285 286 287 288 289 290 |
# File 'lib/delayed/backend/base.rb', line 283 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)
254 255 256 257 |
# File 'lib/delayed/backend/base.rb', line 254 def unlock self.locked_at = nil self.locked_by = nil end |