Initial implementation of state tracking and output handling.

wa/commands/run.py

@@ -24,7 +24,7 @@ from wa.framework import pluginloader
 from wa.framework.configuration import RunConfiguration
 from wa.framework.configuration.parsers import AgendaParser, ConfigParser
 from wa.framework.execution import Executor
-from wa.framework.output import init_wa_output
+from wa.framework.output import init_run_output
 from wa.framework.version import get_wa_version
 from wa.framework.exception import NotFoundError, ConfigError
 from wa.utils import log
@@ -123,7 +123,7 @@ class RunCommand(Command):
             output_directory = settings.default_output_directory
         self.logger.debug('Using output directory: {}'.format(output_directory))
         try:
-            return init_wa_output(output_directory, config, args.force)
+            return init_run_output(output_directory, config, args.force)
         except RuntimeError as e:
             if  'path exists' in str(e):
                 msg = 'Output directory "{}" exists.\nPlease specify another '\

wa/framework/configuration/core.py

@@ -24,6 +24,7 @@ from wa.utils.types import (identifier, integer, boolean, list_of_strings,
                             list_of, toggle_set, obj_dict, enum)
 from wa.utils.serializer import is_pod
 
+
 # Mapping for kind conversion; see docs for convert_types below
 KIND_MAP = {
     int: integer,
@@ -31,7 +32,10 @@ KIND_MAP = {
     dict: OrderedDict,
 }
 
-JobStatus = enum(['NEW', 'LOADED', 'PENDING', 'RUNNING', 
+RunStatus = enum(['NEW', 'STARTED', 'CONNECTED', 'INITIALIZED', 'RUNNING',
+                  'COMPLETED', 'OK', 'FAILED', 'PARTIAL', 'ABORTED'])
+
+JobStatus = enum(['NEW', 'PENDING', 'RUNNING',
                   'OK', 'FAILED', 'PARTIAL', 'ABORTED', 'SKIPPED'])
 
 

wa/framework/configuration/execution.py

@@ -9,6 +9,7 @@ from wa.framework.configuration.parsers import ConfigParser
 from wa.framework.configuration.plugin_cache import PluginCache
 from wa.framework.exception import NotFoundError
 from wa.framework.job import Job
+from wa.framework.run import JobState
 from wa.utils.types import enum
 
 
@@ -106,6 +107,7 @@ class ConfigManager(object):
             job = Job(spec, i, context)
             job.load(context.tm.target)
             self._jobs.append(job)
+            context.run_state.add_job(job)
         self._jobs_generated = True
 
 

wa/framework/execution.py

@@ -49,17 +49,18 @@ from itertools import izip_longest
 
 import wa.framework.signal as signal
 from wa.framework import instrumentation, pluginloader
-from wa.framework.configuration.core import settings
-from wa.framework.configuration.execution import JobStatus
+from wa.framework.configuration.core import settings, RunStatus, JobStatus
 from wa.framework.exception import (WAError, ConfigError, TimeoutError,
                                     InstrumentError, TargetError,
                                     TargetNotRespondingError)
+from wa.framework.output import init_job_output
 from wa.framework.plugin import Artifact
 from wa.framework.resource import ResourceResolver
+from wa.framework.run import RunState
 from wa.framework.target.info import TargetInfo
 from wa.framework.target.manager import TargetManager
 from wa.utils import log
-from wa.utils.misc import (ensure_directory_exists as _d, 
+from wa.utils.misc import (ensure_directory_exists as _d, merge_config_values,
                            get_traceback, format_duration)
 from wa.utils.serializer import json
 
@@ -105,16 +106,26 @@ class ExecutionContext(object):
         return self.current_job.spec.id != self.next_job.spec.id
 
     @property
-    def output_directory(self):
+    def job_output(self):
         if self.current_job:
-            return os.path.join(self.output.basepath, self.current_job.output_name)
+            return self.current_job.output
+
+    @property
+    def output(self):
+        if self.current_job:
+            return self.job_output
+        return self.run_output
+
+    @property
+    def output_directory(self):
         return self.output.basepath
 
     def __init__(self, cm, tm, output):
         self.logger = logging.getLogger('context')
         self.cm = cm
         self.tm = tm
-        self.output = output
+        self.run_output = output
+        self.run_state = output.state
         self.logger.debug('Loading resource discoverers')
         self.resolver = ResourceResolver(cm)
         self.resolver.load()
@@ -127,31 +138,56 @@ class ExecutionContext(object):
         self.output.write_info()
         self.job_queue = copy(self.cm.jobs)
         self.completed_jobs = []
+        self.run_state.status = RunStatus.STARTED
+        self.output.write_state()
 
     def end_run(self):
         self.output.info.end_time = datetime.now()
         self.output.info.duration = self.output.info.end_time -\
                                     self.output.info.start_time
         self.output.write_info()
+        self.output.write_state()
+        self.output.write_result()
 
     def start_job(self):
         if not self.job_queue:
             raise RuntimeError('No jobs to run')
         self.current_job = self.job_queue.pop(0)
-        os.makedirs(self.output_directory)
+        self.current_job.output = init_job_output(self.run_output, self.current_job)
+        self.update_job_state(self.current_job)
         return self.current_job
 
     def end_job(self):
         if not self.current_job:
             raise RuntimeError('No jobs in progress')
         self.completed_jobs.append(self.current_job)
+        self.update_job_state(self.current_job)
+        self.output.write_result()
         self.current_job = None
 
     def move_failed(self, job):
-        attempt = job.retries + 1
-        failed_name = '{}-attempt{:02}'.format(job.output_name, attempt)
-        self.output.move_failed(job.output_name, failed_name)
+        self.run_output.move_failed(job.output)
 
+    def update_job_state(self, job):
+        self.run_state.update_job(job)
+        self.run_output.write_state()
+
+    def write_state(self):
+        self.run_output.write_state()
+
+    def add_metric(self, name, value, units=None, lower_is_better=False,
+                   classifiers=None):
+        if self.current_job:
+            classifiers = merge_config_values(self.current_job.classifiers,
+                                              classifiers)
+        self.output.add_metric(name, value, units, lower_is_better, classifiers)
+
+    def add_artifact(self, name, path, kind, description=None, classifiers=None):
+        self.output.add_artifact(name, path, kind, description, classifiers)
+
+    def add_run_artifact(self, name, path, kind, description=None,
+                         classifiers=None):
+        self.run_output.add_artifact(name, path, kind, description, classifiers)
 
 class OldExecutionContext(object):
     """
@@ -335,6 +371,7 @@ class Executor(object):
         self.logger.info('Generating jobs')
         config_manager.generate_jobs(context)
         output.write_job_specs(config_manager.job_specs)
+        output.write_state()
 
         self.logger.info('Installing instrumentation')
         for instrument in config_manager.get_instruments(target_manager.target):
@@ -345,8 +382,6 @@ class Executor(object):
         runner = Runner(context)
         runner.run()
 
-
-
     def execute_postamble(self):
         """
         This happens after the run has completed. The overall results of the run are
@@ -374,22 +409,6 @@ class Executor(object):
             self.logger.warn('There were warnings during execution.')
             self.logger.warn('Please see {}'.format(self.config.log_file))
 
-    def _get_runner(self, result_manager):
-        if not self.config.execution_order or self.config.execution_order == 'by_iteration':
-            if self.config.reboot_policy == 'each_spec':
-                self.logger.info('each_spec reboot policy with the default by_iteration execution order is '
-                                 'equivalent to each_iteration policy.')
-            runnercls = ByIterationRunner
-        elif self.config.execution_order in ['classic', 'by_spec']:
-            runnercls = BySpecRunner
-        elif self.config.execution_order == 'by_section':
-            runnercls = BySectionRunner
-        elif self.config.execution_order == 'random':
-            runnercls = RandomRunner
-        else:
-            raise ConfigError('Unexpected execution order: {}'.format(self.config.execution_order))
-        return runnercls(self.device_manager, self.context, result_manager)
-
     def _error_signalled_callback(self):
         self.error_logged = True
         signal.disconnect(self._error_signalled_callback, signal.ERROR_LOGGED)
@@ -436,6 +455,7 @@ class Runner(object):
         for job in self.context.job_queue:
             job.initialize(self.context)
         log.dedent()
+        self.context.write_state()
 
     def finalize_run(self):
         self.logger.info('Finalizing run')
@@ -448,6 +468,7 @@ class Runner(object):
         try:
             log.indent()
             self.do_run_job(job, context)
+            job.status = JobStatus.OK
         except KeyboardInterrupt:
             job.status = JobStatus.ABORTED
             raise
@@ -503,12 +524,13 @@ class Runner(object):
         rc = self.context.cm.run_config
         if job.status in rc.retry_on_status:
             if job.retries < rc.max_retries:
-                msg = 'Job {} iteration {} complted with status {}. retrying...'
+                msg = 'Job {} iteration {} completed with status {}. retrying...'
                 self.logger.error(msg.format(job.id, job.status, job.iteration))
                 self.context.move_failed(job)
                 job.retries += 1
                 job.status = JobStatus.PENDING
                 self.context.job_queue.insert(0, job)
+                self.context.write_state()
             else:
                 msg = 'Job {} iteration {} completed with status {}. '\
                       'Max retries exceeded.'

wa/framework/job.py

@@ -11,8 +11,12 @@ class Job(object):
         return self.spec.id
 
     @property
-    def output_name(self):
-        return '{}-{}-{}'.format(self.id, self.spec.label, self.iteration)
+    def label(self):
+        return self.spec.label
+
+    @property
+    def classifiers(self):
+        return self.spec.classifiers
 
     def __init__(self, spec, iteration, context):
         self.logger = logging.getLogger('job')
@@ -31,27 +35,33 @@ class Job(object):
                                             **self.spec.workload_parameters)
         self.workload.init_resources(self.context)
         self.workload.validate()
-        self.status = JobStatus.LOADED
 
     def initialize(self, context):
         self.logger.info('Initializing job {}'.format(self.id))
+        self.workload.initialize(context)
         self.status = JobStatus.PENDING
+        context.update_job_state(self)
 
     def configure_target(self, context):
         self.logger.info('Configuring target for job {}'.format(self.id))
 
     def setup(self, context):
         self.logger.info('Setting up job {}'.format(self.id))
+        self.workload.setup(context)
 
     def run(self, context):
         self.logger.info('Running job {}'.format(self.id))
+        self.workload.run(context)
 
     def process_output(self, context):
         self.logger.info('Processing output for job {}'.format(self.id))
+        self.workload.update_result(context)
 
     def teardown(self, context):
         self.logger.info('Tearing down job {}'.format(self.id))
+        self.workload.teardown(context)
 
     def finalize(self, context):
         self.logger.info('Finalizing job {}'.format(self.id))
+        self.workload.finalize(context)
 

wa/framework/output.py

@@ -7,71 +7,52 @@ import uuid
 from copy import copy
 from datetime import timedelta
 
-from wa.framework.configuration.core import JobSpec
+from wa.framework.configuration.core import JobSpec, RunStatus
 from wa.framework.configuration.manager import ConfigManager
+from wa.framework.run import RunState, RunInfo
 from wa.framework.target.info import TargetInfo
 from wa.utils.misc import touch, ensure_directory_exists
 from wa.utils.serializer import write_pod, read_pod
+from wa.utils.types import enum, numeric
 
 
 logger = logging.getLogger('output')
 
 
-class RunInfo(object):
-    """
-    Information about the current run, such as its unique ID, run
-    time, etc.
+class Output(object):
 
-    """
-    @staticmethod
-    def from_pod(pod):
-        uid = pod.pop('uuid')
-        duration = pod.pop('duration')
-        if uid is not None:
-            uid = uuid.UUID(uid)
-        instance = RunInfo(**pod)
-        instance.uuid = uid
-        instance.duration = duration if duration is None else\
-                            timedelta(seconds=duration)
-        return instance
+    @property
+    def resultfile(self):
+        return os.path.join(self.basepath, 'result.json')
 
-    def __init__(self, run_name=None, project=None, project_stage=None,
-                 start_time=None, end_time=None, duration=None):
-        self.uuid = uuid.uuid4()
-        self.run_name = None
-        self.project = None
-        self.project_stage = None
-        self.start_time = None
-        self.end_time = None
-        self.duration = None
+    def __init__(self, path):
+        self.basepath = path
+        self.result = None
 
-    def to_pod(self):
-        d = copy(self.__dict__)
-        d['uuid'] = str(self.uuid)
-        if self.duration is None:
-            d['duration'] = self.duration
-        else:
-            d['duration'] = self.duration.total_seconds()
-        return d
+    def reload(self):
+        pod = read_pod(self.resultfile)
+        self.result = Result.from_pod(pod)
+
+    def write_result(self):
+        write_pod(self.result.to_pod(), self.resultfile)
+
+    def add_metric(self, name, value, units=None, lower_is_better=False,
+                   classifiers=None):
+        self.result.add_metric(name, value, units, lower_is_better, classifiers)
+
+    def add_artifact(self, name, path, kind, description=None, classifiers=None):
+        if not os.path.exists(path):
+            msg = 'Attempting to add non-existing artifact: {}'
+            raise HostError(msg.format(path))
+        path = os.path.relpath(path, self.basepath)
+
+        if isinstance(kind, basestring):
+            kind = ArtifactType(kind)
+
+        self.result.add_artifact(name, path, kind, description, classifiers)
 
 
-class RunState(object):
-    """
-    Represents the state of a WA run.
-
-    """
-    @staticmethod
-    def from_pod(pod):
-        return RunState()
-
-    def __init__(self):
-        pass
-
-    def to_pod(self):
-        return {}
-
-
-class RunOutput(object):
+class RunOutput(Output):
 
     @property
     def logfile(self):
@@ -111,9 +92,11 @@ class RunOutput(object):
         return ensure_directory_exists(path)
 
     def __init__(self, path):
-        self.basepath = path
+        super(RunOutput, self).__init__(path)
         self.info = None
         self.state = None
+        self.result = None
+        self.jobs = None
         if (not os.path.isfile(self.statefile) or
                 not os.path.isfile(self.infofile)):
             msg = '"{}" does not exist or is not a valid WA output directory.'
@@ -121,8 +104,10 @@ class RunOutput(object):
         self.reload()
 
     def reload(self):
+        super(RunOutput, self).reload()
         self.info = RunInfo.from_pod(read_pod(self.infofile))
         self.state = RunState.from_pod(read_pod(self.statefile))
+        # TODO: propulate the jobs from info in the state
 
     def write_info(self):
         write_pod(self.info.to_pod(), self.infofile)
@@ -157,17 +142,215 @@ class RunOutput(object):
         pod = read_pod(self.jobsfile)
         return [JobSpec.from_pod(jp) for jp in pod['jobs']]
 
-    def move_failed(self, name, failed_name):
-        path = os.path.join(self.basepath, name)
+    def move_failed(self, job_output):
+        name = os.path.basename(job_output.basepath)
+        attempt = job_output.retry + 1
+        failed_name = '{}-attempt{:02}'.format(name, attempt)
         failed_path = os.path.join(self.failed_dir, failed_name)
-        if not os.path.exists(path):
-            raise ValueError('Path {} does not exist'.format(path))
         if os.path.exists(failed_path):
             raise ValueError('Path {} already exists'.format(failed_path))
-        shutil.move(path, failed_path)
+        shutil.move(job_output.basepath, failed_path)
+        job_output.basepath = failed_path
 
 
-def init_wa_output(path, wa_state, force=False):
+class JobOutput(Output):
+
+    def __init__(self, path, id, label, iteration, retry):
+        self.basepath = path
+        self.id = id
+        self.label = label
+        self.iteration = iteration
+        self.retry = retry
+        self.result = None
+        self.reload()
+
+
+class Result(object):
+
+    @staticmethod
+    def from_pod(pod):
+        instance = Result()
+        instance.metrics = [Metric.from_pod(m) for m in pod['metrics']]
+        instance.artifacts = [Artifact.from_pod(a) for a in pod['artifacts']]
+        return instance
+
+    def __init__(self):
+        self.metrics = []
+        self.artifacts = []
+
+    def add_metric(self, name, value, units=None, lower_is_better=False,
+                   classifiers=None):
+        metric = Metric(name, value, units, lower_is_better, classifiers)
+        logger.debug('Adding metric: {}'.format(metric))
+        self.metrics.append(metric)
+
+    def add_artifact(self, name, path, kind, description=None, classifiers=None):
+        artifact = Artifact(name, path, kind, description=description,
+                            classifiers=classifiers)
+        logger.debug('Adding artifact: {}'.format(artifact))
+        self.artifacts.append(artifact)
+
+    def to_pod(self):
+        return dict(
+            metrics=[m.to_pod() for m in self.metrics],
+            artifacts=[a.to_pod() for a in self.artifacts],
+        )
+
+
+ArtifactType = enum(['log', 'meta', 'data', 'export', 'raw'])
+
+
+class Artifact(object):
+    """
+    This is an artifact generated during execution/post-processing of a
+    workload.  Unlike metrics, this represents an actual artifact, such as a
+    file, generated.  This may be "result", such as trace, or it could be "meta
+    data" such as logs.  These are distinguished using the ``kind`` attribute,
+    which also helps WA decide how it should be handled. Currently supported
+    kinds are:
+
+        :log: A log file. Not part of "results" as such but contains 
+              information about the run/workload execution that be useful for
+              diagnostics/meta analysis.
+        :meta: A file containing metadata. This is not part of "results", but
+               contains information that may be necessary to reproduce the
+               results (contrast with ``log`` artifacts which are *not*
+               necessary).
+        :data: This file contains new data, not available otherwise and should
+               be considered part of the "results" generated by WA. Most traces
+               would fall into this category.
+        :export: Exported version of results or some other artifact. This
+                 signifies that this artifact does not contain any new data
+                 that is not available elsewhere and that it may be safely
+                 discarded without losing information.
+        :raw: Signifies that this is a raw dump/log that is normally processed
+              to extract useful information and is then discarded. In a sense,
+              it is the opposite of ``export``, but in general may also be
+              discarded.
+
+              .. note:: whether a file is marked as ``log``/``data`` or ``raw``
+                        depends on how important it is to preserve this file,
+                        e.g. when archiving, vs how much space it takes up.
+                        Unlike ``export`` artifacts which are (almost) always
+                        ignored by other exporters as that would never result
+                        in data loss, ``raw`` files *may* be processed by
+                        exporters if they decided that the risk of losing
+                        potentially (though unlikely) useful data is greater
+                        than the time/space cost of handling the artifact (e.g.
+                        a database uploader may choose to ignore ``raw``
+                        artifacts, where as a network filer archiver may choose
+                        to archive them).
+
+        .. note: The kind parameter is intended to represent the logical
+                 function of a particular artifact, not it's intended means of
+                 processing -- this is left entirely up to the result
+                 processors.
+
+    """
+
+    @staticmethod
+    def from_pod(pod):
+        pod['kind'] = ArtifactType(pod['kind'])
+        return Artifact(**pod)
+
+    def __init__(self, name, path, kind, description=None, classifiers=None):
+        """"
+        :param name: Name that uniquely identifies this artifact.
+        :param path: The *relative* path of the artifact. Depending on the
+                     ``level`` must be either relative to the run or iteration
+                     output directory.  Note: this path *must* be delimited
+                     using ``/`` irrespective of the
+                     operating system.
+        :param kind: The type of the artifact this is (e.g. log file, result,
+                     etc.) this will be used a hit to result processors. This
+                     must be one of ``'log'``, ``'meta'``, ``'data'``,
+                     ``'export'``, ``'raw'``.
+        :param description: A free-form description of what this artifact is.
+        :param classifiers: A set of key-value pairs to further classify this
+                            metric beyond current iteration (e.g. this can be
+                            used to identify sub-tests).
+
+        """
+        self.name = name
+        self.path = path.replace('/', os.sep) if path is not None else path
+        try:
+            self.kind = ArtifactType(kind)
+        except ValueError:
+            msg = 'Invalid Artifact kind: {}; must be in {}'
+            raise ValueError(msg.format(kind, self.valid_kinds))
+        self.description = description
+        self.classifiers = classifiers or {}
+
+    def to_pod(self):
+        pod = copy(self.__dict__)
+        pod['kind'] = str(self.kind)
+        return pod
+
+    def __str__(self):
+        return self.path
+
+    def __repr__(self):
+        return '{} ({}): {}'.format(self.name, self.kind, self.path)
+
+
+class Metric(object):
+    """
+    This is a single metric collected from executing a workload.
+
+    :param name: the name of the metric. Uniquely identifies the metric
+                 within the results.
+    :param value: The numerical value of the metric for this execution of a
+                  workload. This can be either an int or a float.
+    :param units: Units for the collected value. Can be None if the value
+                  has no units (e.g. it's a count or a standardised score).
+    :param lower_is_better: Boolean flag indicating where lower values are
+                            better than higher ones. Defaults to False.
+    :param classifiers: A set of key-value pairs to further classify this
+                        metric beyond current iteration (e.g. this can be used
+                        to identify sub-tests).
+
+    """
+
+    __slots__ = ['name', 'value', 'units', 'lower_is_better', 'classifiers']
+
+    @staticmethod
+    def from_pod(pod):
+        return Metric(**pod)
+
+    def __init__(self, name, value, units=None, lower_is_better=False,
+                 classifiers=None):
+        self.name = name
+        self.value = numeric(value)
+        self.units = units
+        self.lower_is_better = lower_is_better
+        self.classifiers = classifiers or {}
+
+    def to_pod(self):
+        return dict(
+            name=self.name,
+            value=self.value,
+            units=self.units,
+            lower_is_better=self.lower_is_better,
+            classifiers=self.classifiers,
+        )
+
+    def __str__(self):
+        result = '{}: {}'.format(self.name, self.value)
+        if self.units:
+            result += ' ' + self.units
+        result += ' ({})'.format('-' if self.lower_is_better else '+')
+        return result
+
+    def __repr__(self):
+        text = self.__str__()
+        if self.classifiers:
+            return '<{} {}>'.format(text, self.classifiers)
+        else:
+            return '<{}>'.format(text)
+
+
+
+def init_run_output(path, wa_state, force=False):
     if os.path.exists(path):
         if force:
             logger.info('Removing existing output directory.')
@@ -188,13 +371,20 @@ def init_wa_output(path, wa_state, force=False):
             project_stage=wa_state.run_config.project_stage,
            )
     write_pod(info.to_pod(), os.path.join(meta_dir, 'run_info.json'))
-    
-    with open(os.path.join(path, '.run_state.json'), 'w') as wfh:
-        wfh.write('{}')
+    write_pod(RunState().to_pod(), os.path.join(path, '.run_state.json'))
+    write_pod(Result().to_pod(), os.path.join(path, 'result.json'))
 
     return RunOutput(path)
 
 
+def init_job_output(run_output, job):
+    output_name = '{}-{}-{}'.format(job.id, job.spec.label, job.iteration)
+    path = os.path.join(run_output.basepath, output_name)
+    ensure_directory_exists(path)
+    write_pod(Result().to_pod(), os.path.join(path, 'result.json'))
+    return JobOutput(path, job.id, job.iteration, job.label, job.retries)
+
+
 def _save_raw_config(meta_dir, state):
     raw_config_dir = os.path.join(meta_dir, 'raw_config')
     os.makedirs(raw_config_dir)
@@ -206,5 +396,3 @@ def _save_raw_config(meta_dir, state):
         dest_path = os.path.join(raw_config_dir, 'cfg{}-{}'.format(i, basename))
         shutil.copy(source, dest_path)
                                      
-                                     
-

wa/framework/run.py

@@ -18,338 +18,112 @@ from copy import copy
 from datetime import datetime, timedelta
 from collections import OrderedDict
 
-from wa.framework import signal, pluginloader, log
-from wa.framework.plugin import Plugin
-from wa.framework.output import Status
-from wa.framework.resource import ResourceResolver
-from wa.framework.exception import JobError
-from wa.utils import counter
-from wa.utils.serializer import json
-from wa.utils.misc import ensure_directory_exists as _d
-from wa.utils.types import caseless_string
+from wa.framework.configuration.core import RunStatus
 
 
+class RunInfo(object):
+    """
+    Information about the current run, such as its unique ID, run
+    time, etc.
 
-class JobActor(object):
+    """
+    @staticmethod
+    def from_pod(pod):
+        uid = pod.pop('uuid')
+        duration = pod.pop('duration')
+        if uid is not None:
+            uid = uuid.UUID(uid)
+        instance = RunInfo(**pod)
+        instance.uuid = uid
+        instance.duration = duration if duration is None else\
+                            timedelta(seconds=duration)
+        return instance
 
-    def get_config(self):
-        return {}
+    def __init__(self, run_name=None, project=None, project_stage=None,
+                 start_time=None, end_time=None, duration=None):
+        self.uuid = uuid.uuid4()
+        self.run_name = None
+        self.project = None
+        self.project_stage = None
+        self.start_time = None
+        self.end_time = None
+        self.duration = None
 
-    def initialize(self, context):
-        pass
-
-    def run(self):
-        pass
-
-    def finalize(self):
-        pass
-
-    def restart(self):
-        pass
-
-    def complete(self):
-        pass
+    def to_pod(self):
+        d = copy(self.__dict__)
+        d['uuid'] = str(self.uuid)
+        if self.duration is None:
+            d['duration'] = self.duration
+        else:
+            d['duration'] = self.duration.total_seconds()
+        return d
 
 
-class RunnerJob(object):
+class RunState(object):
+    """
+    Represents the state of a WA run.
+
+    """
+    @staticmethod
+    def from_pod(pod):
+        instance = RunState()
+        instance.status = RunStatus(pod['status'])
+        instance.timestamp = pod['timestamp']
+        jss = [JobState.from_pod(j) for j in pod['jobs']]
+        instance.jobs = OrderedDict(((js.id, js.iteration), js) for js in jss)
+        return instance
+
+    def __init__(self):
+        self.jobs = OrderedDict()
+        self.status = RunStatus.NEW
+        self.timestamp = datetime.now()
+
+    def add_job(self, job):
+        job_state = JobState(job.id, job.label, job.iteration, job.status)
+        self.jobs[(job_state.id, job_state.iteration)] = job_state
+
+    def update_job(self, job):
+        state = self.jobs[(job.id, job.iteration)]
+        state.status = job.status
+        state.timestamp = datetime.now()
+
+    def to_pod(self):
+        return OrderedDict(
+            status=str(self.status),
+            timestamp=self.timestamp,
+            jobs=[j.to_pod() for j in self.jobs.itervalues()],
+        )
+
+
+class JobState(object):
+
+    @staticmethod
+    def from_pod(pod):
+        instance = JobState(pod['id'], pod['label'], JobStatus(pod['status']))
+        instance.retries = pod['retries']
+        instance.iteration = pod['iteration']
+        instance.timestamp = pod['timestamp']
+        return instance
 
     @property
-    def status(self):
-        return self.output.status
+    def output_name(self):
+        return '{}-{}-{}'.format(self.id, self.label, self.iteration)
 
-    @status.setter
-    def status(self, value):
-        self.output.status = value
-
-    @property
-    def should_retry(self):
-        return self.attempt <= self.max_retries
-
-    def __init__(self, id, actor, output, max_retries):
+    def __init__(self, id, label, iteration, status):
         self.id = id
-        self.actor = actor
-        self.output = output
-        self.max_retries = max_retries
-        self.status = Status.NEW
-        self.attempt = 0
+        self.label = label
+        self.iteration = iteration
+        self.status = status
+        self.retries = 0
+        self.timestamp = datetime.now()
 
-    def initialize(self, context):
-        self.actor.initialize(context)
-        self.status = Status.PENDING
-
-    def run(self):
-        self.status = Status.RUNNING
-        self.attempt += 1
-        self.output.config = self.actor.get_config()
-        self.output.initialize()
-        self.actor.run()
-        self.status = Status.COMPLETE
-
-    def finalize(self):
-        self.actor.finalize()
-
-    def restart(self):
-        self.actor.restart()
-
-    def complete(self):
-        self.actor.complete()
-
-
-__run_methods = set()
-
-
-def runmethod(method):
-    """
-    A method decorator that ensures that a method is invoked only once per run.
-
-    """
-    def _method_wrapper(*args, **kwargs):
-        if method in __run_methods:
-            return
-        __run_methods.add(method)
-        ret = method(*args, **kwargs)
-        if ret is not None:
-            message = 'runmethod()\'s must return None; method "{}" returned "{}"'
-            raise RuntimeError(message.format(method, ret))
-    return _method_wrapper
-
-
-def reset_runmethods():
-    global __run_methods
-    __run_methods = set()
-
-
-class Runner(object):
-
-    @property
-    def info(self):
-        return self.output.info
-
-    @property
-    def status(self):
-        return self.output.status
-
-    @status.setter
-    def status(self, value):
-        self.output.status = value
-
-    @property
-    def jobs_pending(self):
-        return len(self.job_queue) > 0
-
-    @property
-    def current_job(self):
-        if self.job_queue:
-            return self.job_queue[0]
-
-    @property
-    def previous_job(self):
-        if self.completed_jobs:
-            return self.completed_jobs[-1]
-
-    @property
-    def next_job(self):
-        if len(self.job_queue) > 1:
-            return self.job_queue[1]
-
-    def __init__(self, output):
-        self.logger = logging.getLogger('runner')
-        self.output = output
-        self.context = RunContext(self)
-        self.status = Status.NEW
-        self.job_queue = []
-        self.completed_jobs = []
-        self._known_ids = set([])
-
-    def add_job(self, job_id, actor, max_retries=2):
-        job_id = caseless_string(job_id)
-        if job_id in self._known_ids:
-            raise JobError('Job with id "{}" already exists'.format(job_id))
-        output = self.output.create_job_output(job_id)
-        self.job_queue.append(RunnerJob(job_id, actor, output, max_retries))
-        self._known_ids.add(job_id)
-
-    def initialize(self):
-        self.logger.info('Initializing run')
-        self.start_time = datetime.now()
-        if not self.info.start_time:
-            self.info.start_time = self.start_time
-            self.info.duration = timedelta()
-
-        self.context.initialize()
-        for job in self.job_queue:
-            job.initialize(self.context)
-        self.persist_state()
-        self.logger.info('Run initialized')
-
-    def run(self):
-        self.status = Status.RUNNING
-        reset_runmethods()
-        signal.send(signal.RUN_STARTED, self, self.context)
-        self.initialize()
-        signal.send(signal.RUN_INITIALIZED, self, self.context)
-        self.run_jobs()
-        signal.send(signal.RUN_COMPLETED, self, self.context)
-        self.finalize()
-        signal.send(signal.RUN_FINALIZED, self, self.context)
-
-    def run_jobs(self):
-        try:
-            self.logger.info('Running jobs')
-            while self.jobs_pending:
-                self.begin_job()
-                log.indent()
-                try:
-                    self.current_job.run()
-                except KeyboardInterrupt:
-                    self.current_job.status = Status.ABORTED
-                    signal.send(signal.JOB_ABORTED, self, self.current_job)
-                    raise
-                except Exception as e:
-                    self.current_job.status = Status.FAILED
-                    log.log_error(e, self.logger)
-                    signal.send(signal.JOB_FAILED, self, self.current_job)
-                else:
-                    self.current_job.status = Status.COMPLETE
-                finally:
-                    log.dedent()
-                    self.complete_job()
-        except KeyboardInterrupt:
-            self.status = Status.ABORTED
-            while self.job_queue:
-                job = self.job_queue.pop(0)
-                job.status = RunnerJob.ABORTED
-                self.completed_jobs.append(job)
-            signal.send(signal.RUN_ABORTED, self, self)
-            raise
-        except Exception as e:
-            self.status = Status.FAILED
-            log.log_error(e, self.logger)
-            signal.send(signal.RUN_FAILED, self, self)
-        else:
-            self.status = Status.COMPLETE
-
-    def finalize(self):
-        self.logger.info('Finalizing run')
-        for job in self.job_queue:
-            job.finalize()
-        self.end_time = datetime.now()
-        self.info.end_time = self.end_time
-        self.info.duration += self.end_time - self.start_time
-        self.persist_state()
-        signal.send(signal.RUN_FINALIZED, self, self)
-        self.logger.info('Run completed')
-
-    def begin_job(self):
-        self.logger.info('Starting job {}'.format(self.current_job.id))
-        signal.send(signal.JOB_STARTED, self, self.current_job)
-        self.persist_state()
-
-    def complete_job(self):
-        if self.current_job.status == Status.FAILED:
-            self.output.move_failed(self.current_job.output)
-            if self.current_job.should_retry:
-                self.logger.info('Restarting job {}'.format(self.current_job.id))
-                self.persist_state()
-                self.current_job.restart()
-                signal.send(signal.JOB_RESTARTED, self, self.current_job)
-                return
-
-        self.logger.info('Completing job {}'.format(self.current_job.id))
-        self.current_job.complete()
-        self.persist_state()
-        signal.send(signal.JOB_COMPLETED, self, self.current_job)
-        job = self.job_queue.pop(0)
-        self.completed_jobs.append(job)
-
-    def persist_state(self):
-        self.output.persist()
-
-
-class RunContext(object):
-    """
-    Provides a context for instrumentation. Keeps track of things like
-    current workload and iteration.
-
-    """
-
-    @property
-    def run_output(self):
-        return self.runner.output
-
-    @property
-    def current_job(self):
-        return self.runner.current_job
-
-    @property
-    def run_output_directory(self):
-        return self.run_output.output_directory
-
-    @property
-    def output_directory(self):
-        if self.runner.current_job:
-            return self.runner.current_job.output.output_directory
-        else:
-            return self.run_output.output_directory
-
-    @property
-    def info_directory(self):
-        return self.run_output.info_directory
-
-    @property
-    def config_directory(self):
-        return self.run_output.config_directory
-
-    @property
-    def failed_directory(self):
-        return self.run_output.failed_directory
-
-    @property
-    def log_file(self):
-        return os.path.join(self.output_directory, 'run.log')
-
-
-    def __init__(self, runner):
-        self.runner = runner
-        self.job = None
-        self.iteration = None
-        self.job_output = None
-        self.resolver = ResourceResolver()
-
-    def initialize(self):
-        self.resolver.load()
-
-    def get_path(self, subpath):
-        if self.current_job is None:
-            return self.run_output.get_path(subpath)
-        else:
-            return self.current_job.output.get_path(subpath)
-
-    def add_metric(self, *args, **kwargs):
-        if self.current_job is None:
-            self.run_output.add_metric(*args, **kwargs)
-        else:
-            self.current_job.output.add_metric(*args, **kwargs)
-
-    def add_artifact(self, name, path, kind, *args, **kwargs):
-        if self.current_job is None:
-            self.add_run_artifact(name, path, kind, *args, **kwargs)
-        else:
-            self.add_job_artifact(name, path, kind, *args, **kwargs)
-
-    def add_run_artifact(self, *args, **kwargs):
-        self.run_output.add_artifiact(*args, **kwargs)
-
-    def add_job_artifact(self, *args, **kwargs):
-        self.current_job.output.add_artifact(*args, **kwargs)
-
-    def get_artifact(self, name):
-        if self.iteration_artifacts:
-            for art in self.iteration_artifacts:
-                if art.name == name:
-                    return art
-        for art in self.run_artifacts:
-            if art.name == name:
-                return art
-        return None
+    def to_pod(self):
+        return OrderedDict(
+            id=self.id,
+            label=self.label,
+            iteration=self.iteration,
+            status=str(self.status),
+            retries=0,
+            timestamp=self.timestamp,
+        )
 

wa/utils/serializer.py

@@ -232,6 +232,7 @@ def read_pod(source, fmt=None):
         message = 'source must be a path or an open file handle; got {}'
         raise ValueError(message.format(type(source)))
 
+
 def write_pod(pod, dest, fmt=None):
     if isinstance(dest, basestring):
         with open(dest, 'w') as wfh:

wa/utils/types.py

@@ -78,9 +78,10 @@ def list_of_bools(value, interpret_strings=True):
     """
     Value must be iterable. All elements will be converted to ``bool``\ s.
 
-    .. note:: By default, ``boolean()`` conversion function will be used, which means that
-              strings like ``"0"`` or ``"false"`` will be interpreted as ``False``. If this
-              is undesirable, set ``interpret_strings`` to ``False``.
+    .. note:: By default, ``boolean()`` conversion function will be used, which
+              means that strings like ``"0"`` or ``"false"`` will be
+              interpreted as ``False``. If this is undesirable, set
+              ``interpret_strings`` to ``False``.
 
     """
     if not isiterable(value):
@@ -133,8 +134,8 @@ def list_or_string(value):
 
 def list_or_caseless_string(value):
     """
-    Converts the value into a list of ``caseless_string``'s. If the value is not iterable
-    a one-element list with stringified value will be returned.
+    Converts the value into a list of ``caseless_string``'s. If the value is
+    not iterable a one-element list with stringified value will be returned.
 
     """
     if isinstance(value, basestring):
@@ -148,9 +149,10 @@ def list_or_caseless_string(value):
 
 def list_or(type_):
     """
-    Generator for "list or" types. These take either a single value or a list values
-    and return a list of the specfied ``type_`` performing the conversion on the value
-    (if a single value is specified) or each of the elemented of the specified list.
+    Generator for "list or" types. These take either a single value or a list
+    values and return a list of the specfied ``type_`` performing the
+    conversion on the value (if a single value is specified) or each of the
+    elemented of the specified list.
 
     """
     list_type = list_of(type_)
@@ -176,8 +178,8 @@ none_type = type(None)
 
 def regex(value):
     """
-    Regular expression. If value is a string, it will be complied with no flags. If you
-    want to specify flags, value must be precompiled.
+    Regular expression. If value is a string, it will be complied with no
+    flags. If you want to specify flags, value must be precompiled.
 
     """
     if isinstance(value, regex_type):
@@ -480,13 +482,13 @@ class obj_dict(MutableMapping):
 
 class level(object):
     """
-    A level has a name and behaves like a string when printed,
-    however it also has a numeric value which is used in comparisons.
+    A level has a name and behaves like a string when printed, however it also
+    has a numeric value which is used in ordering comparisons.
 
     """
 
     def __init__(self, name, value):
-        self.name = name
+        self.name = caseless_string(name)
         self.value = value
 
     def __str__(self):
@@ -555,7 +557,7 @@ def enum(args, start=0):
 
     levels = []
     for i, v in enumerate(args, start):
-        name = string.upper(identifier(v))
+        name = caseless_string(identifier(v))
         lv = level(v, i)
         setattr(Enum, name, lv)
         levels.append(lv)

wa/workloads/dhrystone/__init__.py

@@ -90,14 +90,18 @@ class Dhrystone(Workload):
         outfile = os.path.join(context.output_directory, 'dhrystone.output')
         with open(outfile, 'w') as wfh:
             wfh.write(self.output)
+        context.add_artifact('dhrystone-output', outfile, 'raw', "dhrystone's stdout")
+
         score_count = 0
         dmips_count = 0
         total_score = 0
         total_dmips = 0
+
         for line in self.output.split('\n'):
             match = self.time_regex.search(line)
             if match:
-                context.add_metric('time', float(match.group('time')), 'seconds', lower_is_better=True)
+                context.add_metric('time', float(match.group('time')), 'seconds',
+                                   lower_is_better=True)
             else:
                 match = self.bm_regex.search(line)
                 if match:
@@ -114,6 +118,7 @@ class Dhrystone(Workload):
                         context.add_metric(metric, value)
                         dmips_count += 1
                         total_dmips += value
+
         context.add_metric('total DMIPS', total_dmips)
         context.add_metric('total score', total_score)