Module: Taskinator::Persistence::InstanceMethods
- Defined in:
- lib/taskinator/persistence.rb
Instance Method Summary collapse
-
#error ⇒ Object
retrieves the error type, message and backtrace and returns an array with 3 subscripts respectively.
-
#fail(error = nil) ⇒ Object
persists the error information.
-
#key ⇒ Object
the persistence key.
-
#load_workflow_state ⇒ Object
retrieves the workflow state this method is called from the workflow gem.
-
#persist_workflow_state(new_state) ⇒ Object
persists the workflow state this method is called from the workflow gem.
-
#process_key ⇒ Object
the root process persistence key associated with this process or task.
-
#process_options ⇒ Object
retrieves the process options of the root process this is so that meta data of the process can be maintained and accessible to instrumentation subscribers.
-
#process_uuid ⇒ Object
the root process uuid associated with this process or task.
- #save ⇒ Object
- #tasks_count ⇒ Object
Instance Method Details
#error ⇒ Object
retrieves the error type, message and backtrace and returns an array with 3 subscripts respectively
137 138 139 140 141 142 143 144 |
# File 'lib/taskinator/persistence.rb', line 137 def error @error ||= Taskinator.redis do |conn| error_type, , error_backtrace = conn.hmget(self.key, :error_type, :error_message, :error_backtrace) [error_type, , JSON.parse(error_backtrace || '[]')] end end |
#fail(error = nil) ⇒ Object
persists the error information
121 122 123 124 125 126 127 128 129 130 131 132 133 |
# File 'lib/taskinator/persistence.rb', line 121 def fail(error=nil) return unless error && error.is_a?(Exception) Taskinator.redis do |conn| conn.hmset( self.key, :error_type, error.class.name, :error_message, error., :error_backtrace, JSON.generate(error.backtrace || []), :updated_at, Time.now.utc ) end end |
#key ⇒ Object
the persistence key
72 73 74 |
# File 'lib/taskinator/persistence.rb', line 72 def key @key ||= self.class.key_for(self.uuid) end |
#load_workflow_state ⇒ Object
retrieves the workflow state this method is called from the workflow gem
90 91 92 93 94 95 |
# File 'lib/taskinator/persistence.rb', line 90 def load_workflow_state state = Taskinator.redis do |conn| conn.hget(self.key, :state) || 'initial' end state.to_sym end |
#persist_workflow_state(new_state) ⇒ Object
persists the workflow state this method is called from the workflow gem
99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 |
# File 'lib/taskinator/persistence.rb', line 99 def persist_workflow_state(new_state) @updated_at = Time.now.utc Taskinator.redis do |conn| process_key = self.process_key conn.multi do conn.hmset( self.key, :state, new_state, :updated_at, @updated_at ) # also update the "root" process conn.hset( process_key, :updated_at, @updated_at ) end end new_state end |
#process_key ⇒ Object
the root process persistence key associated with this process or task
84 85 86 |
# File 'lib/taskinator/persistence.rb', line 84 def process_key @process_key ||= Taskinator::Process.key_for(process_uuid) end |
#process_options ⇒ Object
retrieves the process options of the root process this is so that meta data of the process can be maintained and accessible to instrumentation subscribers
188 189 190 191 192 193 194 195 |
# File 'lib/taskinator/persistence.rb', line 188 def @process_options ||= begin yaml = Taskinator.redis do |conn| conn.hget(self.process_key, :options) end yaml ? Taskinator::Persistence.deserialize(yaml) : {} end end |
#process_uuid ⇒ Object
the root process uuid associated with this process or task
77 78 79 80 81 |
# File 'lib/taskinator/persistence.rb', line 77 def process_uuid @process_uuid ||= Taskinator.redis do |conn| conn.hget(self.key, :process_uuid) end end |
#save ⇒ Object
54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 |
# File 'lib/taskinator/persistence.rb', line 54 def save Taskinator.redis do |conn| conn.multi do visitor = RedisSerializationVisitor.new(conn, self).visit conn.hmset( Taskinator::Process.key_for(uuid), :tasks_count, visitor.task_count, :tasks_failed, 0, :tasks_processing, 0, :tasks_completed, 0, :tasks_cancelled, 0, ) true end end end |
#tasks_count ⇒ Object
146 147 148 149 150 151 152 153 |
# File 'lib/taskinator/persistence.rb', line 146 def tasks_count @tasks_count ||= begin count = Taskinator.redis do |conn| conn.hget self.process_key, :tasks_count end count.to_i end end |