Implment output processing

- Implemented result processor infrastructured
- Corrected some status tracking issues (differed between states
  and output).
- Added "csv" and "status" result processors (these will be the default
  enabled).

wa/__init__.py

@@ -1,6 +1,7 @@
 from wa.framework import pluginloader, log, signal
 from wa.framework.command import Command
 from wa.framework.configuration import settings
+from wa.framework.configuration.core import Status
 from wa.framework.exception import HostError, JobError, InstrumentError, ConfigError
 from wa.framework.exception import (ResultProcessorError, ResourceError,
                                     CommandError, ToolError)
@@ -10,4 +11,5 @@ from wa.framework.exception import WorkerThreadError, PluginLoaderError
 from wa.framework.instrumentation import (Instrument, very_slow, slow, normal, fast,
                                           very_fast)
 from wa.framework.plugin import Plugin, Parameter
+from wa.framework.processor import ResultProcessor
 from wa.framework.workload import Workload

wa/framework/configuration/core.py

@@ -32,11 +32,10 @@ KIND_MAP = {
     dict: OrderedDict,
 }
 
-RunStatus = enum(['NEW', 'STARTED', 'CONNECTED', 'INITIALIZED', 'RUNNING',
+Status = enum(['UNKNOWN', 'NEW', 'PENDING',
-                  'ABORTED', 'FAILED', 'PARTIAL', 'OK'])
+               'STARTED', 'CONNECTED', 'INITIALIZED', 'RUNNING',
+               'SKIPPED', 'ABORTED', 'FAILED', 'PARTIAL', 'OK'])
 
-JobStatus = enum(['NEW', 'PENDING', 'RUNNING',
-                  'SKIPPED', 'ABORTED', 'FAILED', 'PARTIAL', 'OK'])
 
 
 ##########################
@@ -551,8 +550,7 @@ class MetaConfiguration(Configuration):
         'wa.commands',
         'wa.workloads',
         'wa.instrumentation',
-        #'wa.result_processors',
+        'wa.processors',
-        #'wa.managers',
         'wa.framework.target.descriptor',
         'wa.framework.resource_getters',
     ]
@@ -741,9 +739,9 @@ class RunConfiguration(Configuration):
         ),
         ConfigurationPoint(
             'retry_on_status',
-            kind=list_of(JobStatus),
+            kind=list_of(Status),
             default=['FAILED', 'PARTIAL'],
-            allowed_values=JobStatus.values,
+            allowed_values=Status.values[Status.RUNNING.value:],
             description='''
             This is list of statuses on which a job will be cosidered to have
             failed and will be automatically retried up to ``max_retries``
@@ -774,6 +772,17 @@ class RunConfiguration(Configuration):
             .. note:: this number does not include the original attempt
             ''',
         ),
+        ConfigurationPoint(
+            'result_processors',
+            kind=toggle_set,
+            default=['csv', 'status'],
+            description='''
+            The list of output processors to be used for this run. Output processors
+            post-process data generated by workloads and instruments, e.g. to
+            generate additional reports, format the output in a certain way, or
+            export the output to an exeternal location.
+            ''',
+        ),
     ]
     configuration = {cp.name: cp for cp in config_points + meta_data}
 

wa/framework/configuration/execution.py

@@ -4,7 +4,7 @@ from itertools import izip_longest, groupby, chain
 
 from wa.framework import pluginloader
 from wa.framework.configuration.core import (MetaConfiguration, RunConfiguration,
-                                             JobGenerator, JobStatus, settings)
+                                             JobGenerator, Status, settings)
 from wa.framework.configuration.parsers import ConfigParser
 from wa.framework.configuration.plugin_cache import PluginCache
 from wa.framework.exception import NotFoundError
@@ -88,12 +88,23 @@ class ConfigManager(object):
         for name in self.enabled_instruments:
             try:
                 instruments.append(self.get_plugin(name, kind='instrument', 
-                                                target=target))
+                                                   target=target))
             except NotFoundError:
                 msg = 'Instrument "{}" not found'
                 raise NotFoundError(msg.format(name))
         return instruments
 
+    def get_processors(self):
+        processors = []
+        for name in self.run_config.result_processors:
+            try:
+                proc = self.plugin_cache.get_plugin(name, kind='result_processor')
+            except NotFoundError:
+                msg = 'Result processor "{}" not found'
+                raise NotFoundError(msg.format(name))
+            processors.append(proc)
+        return processors
+
     def finalize(self):
         if not self.agenda:
             msg = 'Attempting to finalize config before agenda has been set'

wa/framework/execution.py

@@ -28,12 +28,13 @@ from itertools import izip_longest
 
 import wa.framework.signal as signal
 from wa.framework import instrumentation, pluginloader
-from wa.framework.configuration.core import settings, RunStatus, JobStatus
+from wa.framework.configuration.core import settings, Status
 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.processor import ProcessorManager
 from wa.framework.resource import ResourceResolver
 from wa.framework.run import RunState
 from wa.framework.target.info import TargetInfo
@@ -95,22 +96,35 @@ class ExecutionContext(object):
         self.tm = tm
         self.run_output = output
         self.run_state = output.state
+        self.target_info = self.tm.get_target_info()
         self.logger.debug('Loading resource discoverers')
         self.resolver = ResourceResolver(cm)
         self.resolver.load()
         self.job_queue = None
         self.completed_jobs = None
         self.current_job = None
+        self.successful_jobs = 0
+        self.failed_jobs = 0
 
     def start_run(self):
         self.output.info.start_time = datetime.now()
         self.output.write_info()
         self.job_queue = copy(self.cm.jobs)
         self.completed_jobs = []
-        self.run_state.status = RunStatus.STARTED
+        self.run_state.status = Status.STARTED
+        self.output.status = Status.STARTED
         self.output.write_state()
 
     def end_run(self):
+        if self.successful_jobs:
+            if self.failed_jobs:
+                status = Satus.PARTIAL
+            else:
+                status = Status.OK
+        else:
+            status = Status.FAILED
+        self.run_state.status = status
+        self.output.status = status
         self.output.info.end_time = datetime.now()
         self.output.info.duration = self.output.info.end_time -\
                                     self.output.info.start_time
@@ -144,7 +158,7 @@ class ExecutionContext(object):
     def skip_remaining_jobs(self):
         while self.job_queue:
             job = self.job_queue.pop(0)
-            job.status = JobStatus.SKIPPED
+            job.status = Status.SKIPPED
             self.run_state.update_job(job)
             self.completed_jobs.append(job)
         self.write_state()
@@ -166,6 +180,9 @@ class ExecutionContext(object):
                          classifiers=None):
         self.run_output.add_artifact(name, path, kind, description, classifiers)
 
+    def add_event(self, message):
+        self.output.add_event(message)
+
 
 class Executor(object):
     """
@@ -228,8 +245,14 @@ class Executor(object):
             instrumentation.install(instrument)
         instrumentation.validate()
 
+        self.logger.info('Installing result processors')
+        pm = ProcessorManager()
+        for proc in config_manager.get_processors():
+            pm.install(proc)
+        pm.validate()
+
         self.logger.info('Starting run')
-        runner = Runner(context)
+        runner = Runner(context, pm)
         signal.send(signal.RUN_STARTED, self)
         runner.run()
         self.execute_postamble(context, output)
@@ -244,7 +267,7 @@ class Executor(object):
 
         counter = context.run_state.get_status_counts()
         parts = []
-        for status in reversed(JobStatus.values):
+        for status in reversed(Status.values):
             if status in counter:
                 parts.append('{} {}'.format(counter[status], status))
         self.logger.info(status_summary + ', '.join(parts))
@@ -272,9 +295,10 @@ class Runner(object):
     
     """
 
-    def __init__(self, context):
+    def __init__(self, context, pm):
         self.logger = logging.getLogger('runner')
         self.context = context
+        self.pm = pm
         self.output = self.context.output
         self.config = self.context.cm
 
@@ -290,6 +314,7 @@ class Runner(object):
                 except KeyboardInterrupt:
                     self.context.skip_remaining_jobs()
         except Exception as e:
+            self.context.add_event(e.message)
             if (not getattr(e, 'logged', None) and
                     not isinstance(e, KeyboardInterrupt)):
                 log.log_error(e, self.logger)
@@ -302,6 +327,7 @@ class Runner(object):
     def initialize_run(self):
         self.logger.info('Initializing run')
         self.context.start_run()
+        self.pm.initialize()
         log.indent()
         for job in self.context.job_queue:
             job.initialize(self.context)
@@ -311,6 +337,9 @@ class Runner(object):
     def finalize_run(self):
         self.logger.info('Finalizing run')
         self.context.end_run()
+        self.pm.process_run_output(self.context)
+        self.pm.export_run_output(self.context)
+        self.pm.finalize()
 
     def run_next_job(self, context):
         job = context.start_job()
@@ -319,12 +348,13 @@ class Runner(object):
         try:
             log.indent()
             self.do_run_job(job, context)
-            job.status = JobStatus.OK
+            job.status = Status.OK
         except KeyboardInterrupt:
-            job.status = JobStatus.ABORTED
+            job.status = Status.ABORTED
             raise
         except Exception as e:
-            job.status = JobStatus.FAILED
+            job.status = Status.FAILED
+            context.add_event(e.message)
             if not getattr(e, 'logged', None):
                 log.log_error(e, self.logger)
                 e.logged = True
@@ -337,7 +367,7 @@ class Runner(object):
             self.check_job(job)
 
     def do_run_job(self, job, context):
-        job.status = JobStatus.RUNNING
+        job.status = Status.RUNNING
         self.send(signal.JOB_STARTED)
 
         with signal.wrap('JOB_TARGET_CONFIG', self):
@@ -353,15 +383,18 @@ class Runner(object):
             try:
                 with signal.wrap('JOB_OUTPUT_PROCESSED', self):
                     job.process_output(context)
+                self.pm.process_job_output(context)
+                self.pm.export_job_output(context)
             except Exception:
-                job.status = JobStatus.PARTIAL
+                job.status = Status.PARTIAL
                 raise
+
         except KeyboardInterrupt:
-            job.status = JobStatus.ABORTED
+            job.status = Status.ABORTED
             self.logger.info('Got CTRL-C. Aborting.')
             raise
         except Exception as e:
-            job.status = JobStatus.FAILED
+            job.status = Status.FAILED
             if not getattr(e, 'logged', None):
                 log.log_error(e, self.logger)
                 e.logged = True
@@ -380,15 +413,17 @@ class Runner(object):
                 self.logger.error(msg.format(job.id, job.status, job.iteration))
                 self.context.move_failed(job)
                 job.retries += 1
-                job.status = JobStatus.PENDING
+                job.status = Status.PENDING
                 self.context.job_queue.insert(0, job)
                 self.context.write_state()
             else:
                 msg = 'Job {} iteration {} completed with status {}. '\
                       'Max retries exceeded.'
                 self.logger.error(msg.format(job.id, job.status, job.iteration))
+                self.context.failed_jobs += 1
         else:  # status not in retry_on_status
             self.logger.info('Job completed with status {}'.format(job.status))
+            self.context.successful_jobs += 1
         
     def send(self, s):
         signal.send(s, self, self.context)

wa/framework/job.py

@@ -1,7 +1,7 @@
 import logging
 
 from wa.framework import pluginloader, signal
-from wa.framework.configuration.core import JobStatus
+from wa.framework.configuration.core import Status
 
 
 class Job(object):
@@ -18,15 +18,25 @@ class Job(object):
     def classifiers(self):
         return self.spec.classifiers
 
+    @property
+    def status(self):
+        return self._status
+
+    @status.setter
+    def status(self, value):
+        self._status = value
+        if self.output:
+            self.output.status = value
+
     def __init__(self, spec, iteration, context):
         self.logger = logging.getLogger('job')
         self.spec = spec
         self.iteration = iteration
         self.context = context
-        self.status = JobStatus.NEW
         self.workload = None
         self.output = None
         self.retries = 0
+        self._status = Status.NEW
 
     def load(self, target, loader=pluginloader):
         self.logger.info('Loading job {}'.format(self.id))
@@ -40,7 +50,7 @@ class Job(object):
         self.logger.info('Initializing job {}'.format(self.id))
         with signal.wrap('WORKLOAD_INITIALIZED', self, context):
             self.workload.initialize(context)
-        self.status = JobStatus.PENDING
+        self.status = Status.PENDING
         context.update_job_state(self)
 
     def configure_target(self, context):

wa/framework/output.py

@@ -5,10 +5,11 @@ import string
 import sys
 import uuid
 from copy import copy
-from datetime import timedelta
+from datetime import datetime, timedelta
 
-from wa.framework.configuration.core import JobSpec, RunStatus
+from wa.framework.configuration.core import JobSpec, Status
-from wa.framework.configuration.manager import ConfigManager
+from wa.framework.configuration.execution import ConfigManager
+from wa.framework.exception import HostError
 from wa.framework.run import RunState, RunInfo
 from wa.framework.target.info import TargetInfo
 from wa.utils.misc import touch, ensure_directory_exists
@@ -21,13 +22,37 @@ logger = logging.getLogger('output')
 
 class Output(object):
 
+    kind = None
+
     @property
     def resultfile(self):
         return os.path.join(self.basepath, 'result.json')
 
+    @property
+    def event_summary(self):
+        num_events = len(self.events)
+        if num_events:
+            lines = self.events[0].message.split('\n')
+            message = '({} event(s)): {}'
+            if num_events > 1 or len(lines) > 1:
+                message += '[...]'
+            return message.format(num_events, lines[0])
+        return ''
+
+    @property
+    def status(self):
+        if self.result is None:
+            return None
+        return self.result.status
+
+    @status.setter
+    def status(self, value):
+        self.result.status =  value
+
     def __init__(self, path):
         self.basepath = path
         self.result = None
+        self.events = []
 
     def reload(self):
         pod = read_pod(self.resultfile)
@@ -36,11 +61,16 @@ class Output(object):
     def write_result(self):
         write_pod(self.result.to_pod(), self.resultfile)
 
+    def get_path(self, subpath):
+        return os.path.join(self.basepath, subpath.strip(os.sep))
+
     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):
+            path = self.get_path(path)
         if not os.path.exists(path):
             msg = 'Attempting to add non-existing artifact: {}'
             raise HostError(msg.format(path))
@@ -51,9 +81,14 @@ class Output(object):
 
         self.result.add_artifact(name, path, kind, description, classifiers)
 
+    def add_event(self, message):
+        self.result.add_event(message)
+
 
 class RunOutput(Output):
 
+    kind = 'run'
+
     @property
     def logfile(self):
         return os.path.join(self.basepath, 'run.log')
@@ -96,7 +131,7 @@ class RunOutput(Output):
         self.info = None
         self.state = None
         self.result = None
-        self.jobs = None
+        self.jobs = []
         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.'
@@ -155,8 +190,10 @@ class RunOutput(Output):
 
 class JobOutput(Output):
 
+    kind = 'job'
+
     def __init__(self, path, id, label, iteration, retry):
-        self.basepath = path
+        super(JobOutput, self).__init__(path)
         self.id = id
         self.label = label
         self.iteration = iteration
@@ -170,13 +207,17 @@ class Result(object):
     @staticmethod
     def from_pod(pod):
         instance = Result()
+        instance.status = Status(pod['status'])
         instance.metrics = [Metric.from_pod(m) for m in pod['metrics']]
         instance.artifacts = [Artifact.from_pod(a) for a in pod['artifacts']]
+        instance.events = [Event.from_pod(e) for e in pod['events']]
         return instance
 
     def __init__(self):
+        self.status = Status.NEW
         self.metrics = []
         self.artifacts = []
+        self.events = []
 
     def add_metric(self, name, value, units=None, lower_is_better=False,
                    classifiers=None):
@@ -190,10 +231,15 @@ class Result(object):
         logger.debug('Adding artifact: {}'.format(artifact))
         self.artifacts.append(artifact)
 
+    def add_event(self, message):
+        self.events.append(Event(message))
+
     def to_pod(self):
         return dict(
+            status=str(self.status),
             metrics=[m.to_pod() for m in self.metrics],
             artifacts=[a.to_pod() for a in self.artifacts],
+            events=[e.to_pod() for e in self.events],
         )
 
 
@@ -349,6 +395,43 @@ class Metric(object):
             return '<{}>'.format(text)
 
 
+class Event(object):
+    """
+    An event that occured during a run.
+
+    """
+
+    __slots__ = ['timestamp', 'message']
+
+    @staticmethod
+    def from_pod(pod):
+        instance = Event(pod['message'])
+        instance.timestamp = pod['timestamp']
+        return instance
+
+    @property
+    def summary(self):
+        lines = self.message.split('\n')
+        result = lines[0]
+        if len(lines) > 1:
+            result += '[...]'
+        return result
+
+    def __init__(self, message):
+        self.timestamp = datetime.utcnow()
+        self.message = message
+
+    def to_pod(self):
+        return dict(
+            timestamp=self.timestamp,
+            message=self.message,
+        )
+
+    def __str__(self):
+        return '[{}] {}'.format(self.timestamp, self.message)
+
+    __repr__ = __str__
+
 
 def init_run_output(path, wa_state, force=False):
     if os.path.exists(path):
@@ -382,7 +465,10 @@ def init_job_output(run_output, job):
     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)
+    job_output = JobOutput(path, job.id, job.iteration, job.label, job.retries)
+    job_output.status = job.status
+    run_output.jobs.append(job_output)
+    return job_output
 
 
 def _save_raw_config(meta_dir, state):

wa/framework/processor.py

@@ -0,0 +1,87 @@
+import logging
+
+from wa.framework import pluginloader
+from wa.framework.exception import ConfigError
+from wa.framework.instrumentation import is_installed
+from wa.framework.plugin import Plugin
+from wa.utils.log import log_error, indent, dedent
+
+
+class ResultProcessor(Plugin):
+
+    kind = 'result_processor'
+    requires = []
+
+    def validate(self):
+        super(ResultProcessor, self).validate()
+        for instrument in self.requires:
+            if not is_installed(instrument):
+                msg = 'Instrument "{}" is required by {}, but is not installed.'
+                raise ConfigError(msg.format(instrument, self.name))
+
+    def initialize(self):
+        pass
+
+    def finalize(self):
+        pass
+
+
+class ProcessorManager(object):
+
+    def __init__(self, loader=pluginloader):
+        self.loader = loader
+        self.logger = logging.getLogger('processor')
+        self.processors = []
+
+    def install(self, processor):
+        if not isinstance(processor, ResultProcessor):
+            processor = self.loader.get_result_processor(processor)
+        self.logger.debug('Installing {}'.format(processor.name))
+        self.processors.append(processor)
+
+    def validate(self):
+        for proc in self.processors:
+            proc.validate()
+
+    def initialize(self):
+        for proc in self.processors:
+            proc.initialize()
+
+    def finalize(self):
+        for proc in self.processors:
+            proc.finalize()
+
+    def process_job_output(self, context):
+        self.do_for_each_proc('process_job_output', 'processing using "{}"',
+                              context.job_output, context.target_info,
+                              context.run_output)
+
+    def export_job_output(self, context):
+        self.do_for_each_proc('export_job_output', 'Exporting using "{}"',
+                              context.job_output, context.target_info,
+                              context.run_output)
+
+    def process_run_output(self, context):
+        self.do_for_each_proc('process_run_output', 'Processing using "{}"',
+                              context.run_output, context.target_info)
+
+    def export_run_output(self, context):
+        self.do_for_each_proc('export_run_output', 'Exporting using "{}"',
+                              context.run_output, context.target_info)
+
+    def do_for_each_proc(self, method_name, message, *args):
+        try:
+            indent()
+            for proc in self.processors:
+                proc_func = getattr(proc, method_name, None)
+                if proc_func is None:
+                    continue
+                try:
+                    self.logger.info(message.format(proc.name))
+                    proc_func(*args)
+                except Exception as e:
+                    if isinstance(e, KeyboardInterrupt):
+                        raise
+                    log_error(e, self.logger)
+        finally:
+            dedent()

wa/framework/run.py

@@ -18,7 +18,7 @@ from collections import OrderedDict, Counter
 from copy import copy
 from datetime import datetime, timedelta
 
-from wa.framework.configuration.core import RunStatus, JobStatus
+from wa.framework.configuration.core import Status
 
 
 class RunInfo(object):
@@ -67,7 +67,7 @@ class RunState(object):
     @staticmethod
     def from_pod(pod):
         instance = RunState()
-        instance.status = RunStatus(pod['status'])
+        instance.status = Status(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)
@@ -76,11 +76,11 @@ class RunState(object):
     @property
     def num_completed_jobs(self):
         return sum(1 for js in self.jobs.itervalues()
-                   if js.status > JobStatus.SKIPPED)
+                   if js.status > Status.SKIPPED)
 
     def __init__(self):
         self.jobs = OrderedDict()
-        self.status = RunStatus.NEW
+        self.status = Status.NEW
         self.timestamp = datetime.now()
 
     def add_job(self, job):
@@ -110,7 +110,7 @@ class JobState(object):
 
     @staticmethod
     def from_pod(pod):
-        instance = JobState(pod['id'], pod['label'], JobStatus(pod['status']))
+        instance = JobState(pod['id'], pod['label'], Status(pod['status']))
         instance.retries = pod['retries']
         instance.iteration = pod['iteration']
         instance.timestamp = pod['timestamp']

wa/processors/csvproc.py

@@ -0,0 +1,87 @@
+import csv
+
+from wa import ResultProcessor, Parameter
+from wa.framework.exception import ConfigError
+from wa.utils.types import list_of_strings
+
+
+class CsvReportProcessor(ResultProcessor):
+
+    name = 'csv'
+    description = """
+    Creates a ``results.csv`` in the output directory containing results for
+    all iterations in CSV format, each line containing a single metric.
+
+    """
+
+    parameters = [
+        Parameter('use_all_classifiers', kind=bool, default=False,
+                  global_alias='use_all_classifiers',
+                  description="""
+                  If set to ``True``, this will add a column for every classifier
+                  that features in at least one collected metric.
+
+                  .. note:: This cannot be ``True`` if ``extra_columns`` is set.
+
+                  """),
+        Parameter('extra_columns', kind=list_of_strings,
+                  description="""
+                  List of classifiers to use as columns.
+
+                   .. note:: This cannot be set if ``use_all_classifiers`` is
+                             ``True``.
+
+                  """),
+    ]
+
+    def validate(self):
+        super(CsvReportProcessor, self).validate()
+        if self.use_all_classifiers and self.extra_columns:
+            msg = 'extra_columns cannot be specified when '\
+                  'use_all_classifiers is True'
+            raise ConfigError(msg)
+
+    def initialize(self):
+        self.results_so_far = []  # pylint: disable=attribute-defined-outside-init
+        self.artifact_added = False
+
+    def process_job_output(self, output, target_info, run_output):
+        self.results_so_far.append(output)
+        self._write_results(self.results_so_far, run_output)
+        if not self.artifact_added:
+            run_output.add_artifact('run_result_csv', 'results.csv', 'export')
+            self.artifact_added = True
+
+    def process_run_result(self, output, target_info):
+        self.results_so_far.append(output.result)
+        self._write_results(self.rsults_so_far, output)
+        if not self.artifact_added:
+            output.add_artifact('run_result_csv', 'results.csv', 'export')
+            self.artifact_added = True
+
+    def _write_results(self, results, output):
+        if self.use_all_classifiers:
+            classifiers = set([])
+            for result in results:
+                for metric in result.metrics:
+                    classifiers.update(metric.classifiers.keys())
+            extra_columns = list(classifiers)
+        elif self.extra_columns:
+            extra_columns = self.extra_columns
+        else:
+            extra_columns = []
+
+        outfile = output.get_path('results.csv')
+        with open(outfile, 'wb') as wfh:
+            writer = csv.writer(wfh)
+            writer.writerow(['id', 'workload', 'iteration', 'metric', ] +
+                            extra_columns + ['value', 'units'])
+
+            for o in results:
+                header = [o.id, o.label, o.iteration]
+                for metric in o.result.metrics:
+                    row = (header + [metric.name] +
+                           [str(metric.classifiers.get(c, '')) 
+                            for c in extra_columns] +
+                           [str(metric.value), metric.units or ''])
+                    writer.writerow(row)

wa/processors/status.py

@@ -0,0 +1,59 @@
+#    Copyright 2013-2015 ARM Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+# pylint: disable=R0201
+import os
+import time
+from collections import Counter
+
+from wa import ResultProcessor, Status
+from wa.utils.misc import write_table
+
+
+class StatusTxtReporter(ResultProcessor):
+    name = 'status'
+    description = """
+    Outputs a txt file containing general status information about which runs
+    failed and which were successful
+
+    """
+
+    def process_run_output(self, output, target_info):
+        counter = Counter()
+        for jo in output.jobs:
+            counter[jo.status] += 1
+
+        outfile = output.get_path('status.txt')
+        self.logger.info('Status available in {}'.format(outfile))
+        with open(outfile, 'w') as wfh:
+            wfh.write('Run name: {}\n'.format(output.info.run_name))
+            wfh.write('Run status: {}\n'.format(output.status))
+            wfh.write('Date: {}\n'.format(time.strftime("%c")))
+            if output.events:
+                wfh.write('Events:\n')
+                for event in output.events:
+                    wfh.write('\t{}\n'.format(event.summary))
+
+            txt = '{}/{} iterations completed without error\n'
+            wfh.write(txt.format(counter[Status.OK], len(output.jobs)))
+            wfh.write('\n')
+            status_lines = [map(str, [o.id, o.label, o.iteration, o.status,
+                                      o.event_summary])
+                            for o in output.jobs]
+            write_table(status_lines, wfh, align='<<>><')
+
+        output.add_artifact('run_status_summary', 'status.txt', 'export')
+