diff --git a/.gitignore b/.gitignore
index 42120ce..aef6076 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,8 @@
 Enrichment/
 __pycache__/
-Logs/
-[Dd]ata/
+[Ll]ogs/
+[Dd]ata
+[Cc]ache
+*.egg-info/
+credentials*
+
diff --git a/config.json b/config.json
new file mode 100644
index 0000000..8e895e8
--- /dev/null
+++ b/config.json
@@ -0,0 +1,3 @@
+{
+    "process_count": 2
+}
diff --git a/logging.yaml b/logging.yaml
index b18e6ed..25024b3 100644
--- a/logging.yaml
+++ b/logging.yaml
@@ -15,7 +15,7 @@ handlers:
         class: logging.handlers.RotatingFileHandler
         level: INFO
         formatter: simple
-        filename: Logs/info.log
+        filename: logs/info.log
         maxBytes: 10485760 # 10MB
         backupCount: 20
         encoding: utf8
@@ -24,7 +24,7 @@ handlers:
         class: logging.handlers.RotatingFileHandler
         level: ERROR
         formatter: simple
-        filename: Logs/errors.log
+        filename: logs/errors.log
         maxBytes: 10485760 # 10MB
         backupCount: 20
         encoding: utf8
diff --git a/minigrida/__init__.py b/minigrida/__init__.py
new file mode 100644
index 0000000..04906e8
--- /dev/null
+++ b/minigrida/__init__.py
@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+# file __init__.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 22 mai 2020
+"""Abstract
+
+doc.
+"""
+
diff --git a/cvgenerators/__init__.py b/minigrida/cvgenerators/__init__.py
similarity index 100%
rename from cvgenerators/__init__.py
rename to minigrida/cvgenerators/__init__.py
diff --git a/cvgenerators/jurse.py b/minigrida/cvgenerators/jurse.py
similarity index 100%
rename from cvgenerators/jurse.py
rename to minigrida/cvgenerators/jurse.py
diff --git a/minigrida/database/__init__.py b/minigrida/database/__init__.py
new file mode 100644
index 0000000..6cba338
--- /dev/null
+++ b/minigrida/database/__init__.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+# file __init__.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 22 mai 2020
+"""Abstract
+
+doc.
+"""
+
+from .design import *
+from .helpers import *
diff --git a/minigrida/database/design.py b/minigrida/database/design.py
new file mode 100644
index 0000000..ad553e8
--- /dev/null
+++ b/minigrida/database/design.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# file design.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 22 mai 2020
+"""Abstract
+
+doc.
+"""
+
+from datetime import date
+from pony import orm
+
+db = orm.Database()
+
+class Experiment(db.Entity):
+    sessions = orm.Set('Session')
+    urgency = orm.Required(int, default=1)
+    status = orm.Required(str, default='pending')
+    
+    protocol = orm.Required(str)
+    expe = orm.Required(orm.Json)
+    expe_hash = orm.Required(str, 32, unique=True)
+    
+    start_date = orm.Optional(date)
+    end_date = orm.Optional(date)
+    worker = orm.Optional(str)
+    ressources = orm.Optional(orm.Json)
+    
+    report = orm.Optional(orm.Json)
+    oa = orm.Optional(float)
+    aa = orm.Optional(float)
+    k = orm.Optional(float)
+
+class Session(db.Entity):
+    project = orm.Required('Project')
+    date = orm.Required(date)
+    name = orm.PrimaryKey(str)
+    desc = orm.Optional(str)
+    urgency = orm.Required(int, default=1)
+    experiments = orm.Set('Experiment')
+
+class Project(db.Entity):
+    name = orm.PrimaryKey(str)
+    sessions = orm.Set('Session')
+
diff --git a/minigrida/database/helpers.py b/minigrida/database/helpers.py
new file mode 100644
index 0000000..7c95ba6
--- /dev/null
+++ b/minigrida/database/helpers.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+# file helpers.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 22 mai 2020
+"""Abstract
+
+doc.
+"""
+
+from pony import orm
+from datetime import datetime, date
+import json
+import hashlib
+import logging
+
+from .design import Session, Experiment, Project, db
+
+log = logging.getLogger()
+
+def compute_expe_hash(experiment):
+    return hashlib.md5(json.dumps(experiment, sort_keys=True).encode('utf-8')).hexdigest()
+
+@orm.db_session
+def create_experiment(session_name, protocol, expe, urgency=1):
+    session = Session.select(lambda x: x.name == session_name)
+    if not session.exists():
+        raise ValueError('Session "{}" does not exist'.format(session_name))
+
+    expe_hash = compute_expe_hash(expe)
+    q = Experiment.select(lambda x: x.expe_hash == expe_hash)
+
+    if q.exists():
+        e = q.first()
+        e.sessions.add(session)
+    else:
+        Experiment(sessions=session, protocol=protocol, expe=expe, expe_hash=expe_hash)
+
+@orm.db_session
+def create_project(name):
+    if not Project.select(lambda x: x.name == name).exists():
+        Project(name=name)
+    else:
+        print('Project "{}" already exists.'.format(name))
+
+@orm.db_session
+def create_session(name, desc, project_name, urgency=1):
+    project = Project[project_name]
+
+    if not Session.select(lambda x: x.name == name).exists():
+        Session(project=project, date=datetime.now(),
+                name=name, desc=desc, urgency=1)
+    else:
+        print('Session "{}" already exists.'.format(name))
+
+@orm.db_session
+def pending_experiments():
+    return Experiment.select(lambda x: x.status == 'pending').exists()
+
+
+@orm.db_session(serializable=True, optimistic=False)
+def next_experiment():
+    # TODO: take session urgency into account
+    expe = orm.select(e for e in Experiment
+                      if e.status == 'pending'
+                      and e.urgency == orm.max(e.urgency for e in Experiment
+                                               if e.status == 'pending')
+                      ).random(1)
+    if expe:
+        expe = expe[0]
+        expe.status = 'staging'
+        return expe
+
+
+def update_experiment(expe, **params):
+    try:
+        _update_experiment(expe, **params)
+    except orm.DatabaseError as e:
+        log.error(e)
+        log.info('Retry update')
+        _update_experiment(expe, **params)
+
+
+@orm.db_session
+def _update_experiment(expe, **params):
+    e = Experiment.get_for_update(id=expe.id)
+    for k, v in params.items():
+        setattr(e, k, v)
+
+
+def connect_testing():
+    db.bind('sqlite', ':memory:')
+    db.generate_mapping(create_tables=True)
+
+
+def connect(credentials_file):
+    with open(credentials_file) as f:
+        credentials = json.load(f)
+        db.bind(**credentials)
+    db.generate_mapping(create_tables=True)
diff --git a/descriptors/__init__.py b/minigrida/descriptors/__init__.py
similarity index 100%
rename from descriptors/__init__.py
rename to minigrida/descriptors/__init__.py
diff --git a/descriptors/dfc_aps.py b/minigrida/descriptors/dfc_aps.py
similarity index 100%
rename from descriptors/dfc_aps.py
rename to minigrida/descriptors/dfc_aps.py
diff --git a/descriptors/dfc_base.py b/minigrida/descriptors/dfc_base.py
similarity index 97%
rename from descriptors/dfc_base.py
rename to minigrida/descriptors/dfc_base.py
index da83012..bc8bfd3 100644
--- a/descriptors/dfc_base.py
+++ b/minigrida/descriptors/dfc_base.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+j#!/usr/bin/python
 # -*- coding: utf-8 -*-
 # \file dfc_base.py
 # \brief TODO
diff --git a/descriptors/dfc_daps.py b/minigrida/descriptors/dfc_daps.py
similarity index 100%
rename from descriptors/dfc_daps.py
rename to minigrida/descriptors/dfc_daps.py
diff --git a/descriptors/dfc_dsdaps.py b/minigrida/descriptors/dfc_dsdaps.py
similarity index 100%
rename from descriptors/dfc_dsdaps.py
rename to minigrida/descriptors/dfc_dsdaps.py
diff --git a/descriptors/dfc_lfaps.py b/minigrida/descriptors/dfc_lfaps.py
similarity index 100%
rename from descriptors/dfc_lfaps.py
rename to minigrida/descriptors/dfc_lfaps.py
diff --git a/descriptors/dfc_lfsdaps.py b/minigrida/descriptors/dfc_lfsdaps.py
similarity index 100%
rename from descriptors/dfc_lfsdaps.py
rename to minigrida/descriptors/dfc_lfsdaps.py
diff --git a/descriptors/dfc_sdaps.py b/minigrida/descriptors/dfc_sdaps.py
similarity index 100%
rename from descriptors/dfc_sdaps.py
rename to minigrida/descriptors/dfc_sdaps.py
diff --git a/minigrida/descriptors/pixel.py b/minigrida/descriptors/pixel.py
new file mode 100644
index 0000000..cf329fa
--- /dev/null
+++ b/minigrida/descriptors/pixel.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+# file pixel.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 26 mai 2020
+"""Abstract
+
+doc.
+"""
+
+import numpy as np
+
+
+def run(gt, rasters, remove=None):
+    X = []
+    y = []
+    groups = []
+
+    for i, (gti, rastersi) in enumerate(zip(gt, rasters)):
+        # Create vectors
+        X_raw = np.moveaxis(np.array(list(rastersi.values())), 0, -1)
+        y_raw = gti
+
+        # Remove unwanted label X, y
+        lbl = np.ones_like(y_raw, dtype=np.bool)
+        for l in remove if remove else []:
+            lbl &= y_raw != l
+
+        X += [X_raw[lbl]]
+        y += [y_raw[lbl]]
+        groups += [np.repeat(i, lbl.sum())]
+
+    X = np.concatenate(X)
+    y = np.concatenate(y)
+    groups = np.concatenate(groups)
+
+    return X, y, groups
diff --git a/minigrida/loader/__init__.py b/minigrida/loader/__init__.py
new file mode 100644
index 0000000..174a390
--- /dev/null
+++ b/minigrida/loader/__init__.py
@@ -0,0 +1,9 @@
+#!/usr/bin/env python
+# file __init__.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 26 mai 2020
+"""Abstract
+
+doc.
+"""
diff --git a/minigrida/loader/tiles.py b/minigrida/loader/tiles.py
new file mode 100644
index 0000000..e86d3e9
--- /dev/null
+++ b/minigrida/loader/tiles.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# file tiles.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 26 mai 2020
+"""Abstract
+
+doc.
+"""
+
+from pathlib import Path
+import rasterio as rio
+
+
+def run(tiles_count, gt_path, gt_name, rasters_path, rasters_name):
+    gt = []
+    rasters = []
+
+    for i in range(tiles_count):
+        gt += [load_tif(raster_path(gt_path, gt_name, i))]
+        rasters += [{Path(n).stem: load_tif(raster_path(rasters_path, n, i))
+                     for n in rasters_name}]
+
+    return gt, rasters
+
+
+def load_tif(path):
+    return rio.open(str(path)).read()[0]
+
+
+def raster_path(path, name, i):
+    return Path(path) / '{}_{}_{}.tif'.format(Path(name).stem, 0, i)
diff --git a/logger.py b/minigrida/logger.py
similarity index 100%
rename from logger.py
rename to minigrida/logger.py
diff --git a/minigrida/logging.yaml b/minigrida/logging.yaml
new file mode 100644
index 0000000..b18e6ed
--- /dev/null
+++ b/minigrida/logging.yaml
@@ -0,0 +1,40 @@
+version: 1
+disable_existing_loggers: False
+formatters:
+    simple:
+        format: "%(asctime)s %(levelname)s %(name)s: %(message)s"
+
+handlers:
+    console:
+        class: logging.StreamHandler
+        level: INFO
+        formatter: simple
+        stream: ext://sys.stdout
+
+    info_file_handler:
+        class: logging.handlers.RotatingFileHandler
+        level: INFO
+        formatter: simple
+        filename: Logs/info.log
+        maxBytes: 10485760 # 10MB
+        backupCount: 20
+        encoding: utf8
+
+    error_file_handler:
+        class: logging.handlers.RotatingFileHandler
+        level: ERROR
+        formatter: simple
+        filename: Logs/errors.log
+        maxBytes: 10485760 # 10MB
+        backupCount: 20
+        encoding: utf8
+
+loggers:
+    my_module:
+        level: DEBUG
+        handlers: [console]
+        propagate: no
+
+root:
+    level: DEBUG
+    handlers: [console, info_file_handler, error_file_handler]
diff --git a/protocols/__init__.py b/minigrida/protocols/__init__.py
similarity index 77%
rename from protocols/__init__.py
rename to minigrida/protocols/__init__.py
index e17274e..d9b5df2 100644
--- a/protocols/__init__.py
+++ b/minigrida/protocols/__init__.py
@@ -7,3 +7,6 @@
 # \date 09 sept. 2018
 #
 # TODO details
+
+#from .jurse import Jurse
+from .jurse2 import Jurse2
diff --git a/protocols/jurse.py b/minigrida/protocols/jurse.py
similarity index 100%
rename from protocols/jurse.py
rename to minigrida/protocols/jurse.py
diff --git a/minigrida/protocols/jurse2.py b/minigrida/protocols/jurse2.py
new file mode 100644
index 0000000..8238b16
--- /dev/null
+++ b/minigrida/protocols/jurse2.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+# file jurse2.py
+# author Florent Guiotte <florent.guiotte@irisa.fr>
+# version 0.0
+# date 26 mai 2020
+"""Abstract
+
+doc.
+"""
+
+import importlib
+import numpy as np
+from sklearn import metrics
+from .protocol import Protocol, TestError
+
+
+class Jurse2(Protocol):
+    """Second JURSE test protocol for LiDAR classification with 2D maps.
+
+    """
+
+    def __init__(self, expe):
+        super().__init__(expe, self.__class__.__name__)
+
+    def _run(self):
+        self._log.info('Load data')
+        try:
+            data = self._load_data()
+        except Exception:
+            raise TestError('Error occured during data loading')
+
+        self._log.info('Compute descriptors')
+        try:
+            descriptors = self._compute_descriptors(data)
+        except Exception:
+            raise TestError('Error occured during description')
+
+        self._log.info('Classify descriptors')
+        try:
+            classification = self._compute_classification(descriptors)
+        except Exception:
+            raise TestError('Error occured during classification')
+
+        self._log.info('Run metrics')
+        metrics = self._run_metrics(classification, descriptors)
+
+        results = {}
+        results['metrics'] = metrics
+        self._results = results
+
+    def _load_data(self):
+        data_loader = self._expe['data_loader']
+
+        loader = importlib.import_module(data_loader['name'])
+        data = loader.run(**data_loader['parameters'])
+
+        return data
+
+    def _compute_descriptors(self, data):
+        script = self._expe['descriptors_script']
+
+        desc = importlib.import_module(script['name'])
+        att = desc.run(*data, **script['parameters'])
+
+        return att
+
+    def _compute_classification(self, descriptors):
+        X, y, groups = descriptors
+
+        # CrossVal and ML
+        cv = self._expe['cross_validation']
+        cl = self._expe['classifier']
+
+        cross_val = getattr(importlib.import_module(cv['package']), cv['name'])
+        classifier = getattr(importlib.import_module(cl['package']), cl['name'])
+
+        y_pred = np.zeros_like(y)
+
+        cvi = cross_val(**cv['parameters'])
+        for train_index, test_index in cvi.split(X, y, groups):
+            cli = classifier(**cl['parameters'])
+
+            self._log.info('  - fit')
+            cli.fit(X[train_index], y[train_index])
+
+            self._log.info('  - predict')
+            y_pred[test_index] = cli.predict(X[test_index])
+
+        return y_pred
+
+    def _get_results(self):
+        return self._results
+
+    def _run_metrics(self, classification, descriptors):
+        X, y_true, groups = descriptors
+        y_pred = classification
+
+        self._log.info('  - Scores')
+        self.oa = metrics.accuracy_score(y_true, y_pred)
+        self.aa = metrics.balanced_accuracy_score(y_true, y_pred)
+        self.k = metrics.cohen_kappa_score(y_true, y_pred)
+
+        self._log.info('  - Additional results')
+        p, r, f, s = metrics.precision_recall_fscore_support(y_true, y_pred)
+        cm = metrics.confusion_matrix(y_true, y_pred)
+        results = {'dimensions': X.shape[-1],
+                   'precision': p.tolist(),
+                   'recall': r.tolist(),
+                   'f1score': f.tolist(),
+                   'support': s.tolist(),
+                   'confusion': cm.tolist()}
+
+        return results
diff --git a/protocols/protocol.py b/minigrida/protocols/protocol.py
similarity index 54%
rename from protocols/protocol.py
rename to minigrida/protocols/protocol.py
index b53efc8..68e3428 100644
--- a/protocols/protocol.py
+++ b/minigrida/protocols/protocol.py
@@ -10,7 +10,6 @@
 
 import logging
 import time
-from collections import OrderedDict
 
 
 class Protocol:
@@ -18,49 +17,35 @@ class Protocol:
         self._log = logging.getLogger(name)
         self._expe = expe
         self._name = name
-        self._times = OrderedDict()
-        self._results_base_name = None
         self._log.debug('expe loaded: {}'.format(self._expe))
-
-    def get_hashes(self):
-        self._log.info('Computing hashes')
-        return(self._get_hashes())
-
-    def set_results_base_name(self, base_name):
-        self._results_base_name = base_name
+        self.k = None
+        self.oa = None
+        self.aa = None
 
     def run(self):
-        self._pt = time.process_time()
+        spt = time.process_time()
         self._run()
+        self._pt = time.process_time() - spt
 
     def get_results(self):
         return self._get_results()
 
     def get_process_time(self):
-        return self._times
-
-    def _time(self, process):
-        self._times[process] = time.process_time() - self._pt
-        self._pt = time.process_time()
-
-    def _get_hashes(self):
-        self._log.warning('Protocol did not override _get_hashes()')
-        hashes = OrderedDict()
-        hashes['global'] = 'Protocol did not override _get_hashes()'
-        return hashes
+        return self._pt
 
     def _run(self):
         self._log.error('Protocol did not override _run()')
-        raise NotImplementedError('Protocol {} did not override _run()'.format(self))
+        raise NotImplementedError('Protocol {} did not override _run()'
+                                  .format(self))
 
     def _get_results(self):
         self._log.warning('Protocol did not override _get_results()')
-        results = OrderedDict()
+        results = {}
         results['global'] = 'Protocol did not override _get_results()'
         return results
 
     def __str__(self):
-        return('{}'.format(self._name))
+        return '{}'.format(self._name)
 
 
 class TestError(Exception):
diff --git a/minigrida/supervisor.py b/minigrida/supervisor.py
new file mode 100644
index 0000000..e38cb7a
--- /dev/null
+++ b/minigrida/supervisor.py
@@ -0,0 +1,100 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+# \file supervisor.py
+# \brief TODO
+# \author Florent Guiotte <florent.guiotte@gmail.com>
+# \version 2.1
+# \date 07 sept. 2018
+#
+# TODO details
+
+import importlib
+import time
+import os
+from datetime import datetime
+import traceback
+import logging
+import logger
+from protocols.protocol import TestError
+import database
+from multiprocessing import Process
+import json
+
+host = os.uname()[1]
+log = logging.getLogger('Supervisor [{}]'.format(host))
+
+
+def run(expe, hostpid=host):
+    database.update_experiment(expe, worker=hostpid, start_date=datetime.now())
+
+    # Load protocol
+    log.info('Load protocol {}'.format(expe.protocol))
+    protocol_module = importlib.import_module('protocols')
+    importlib.reload(protocol_module)
+    protocol = getattr(protocol_module, expe.protocol)
+    test = protocol(expe.expe)
+
+    # Run test
+    try:
+        test.run()
+    except Exception as e:
+        err = 'Experience error'
+        log.warning(err)
+        report = {'error': {'name': str(err),
+                            'trace': traceback.format_exc()}}
+        database.update_experiment(expe, report=report, status='error')
+        raise TestError(err)
+
+    # Write report
+    log.info('Write report')
+    database.update_experiment(expe,
+                               end_date=datetime.now(),
+                               oa=test.oa,
+                               aa=test.aa,
+                               k=test.k,
+                               report=test.get_results(),
+                               status='complete')
+
+    # End of test
+    log.info('Expe {} complete'.format(expe.expe_hash))
+
+
+def main(pid=None):
+    hostpid = host + '_' + str(pid) if pid is not None else host
+    log.name = 'Supervisor [{}]'.format(hostpid)
+
+    log.info('Connecting to database')
+    database.connect('credentials.json')
+
+    while(True):
+        if not database.pending_experiments():
+            log.info('No pending experiments, waiting...')
+            time.sleep(30)
+
+        else:
+            log.info('Loading next experiment')
+            expe = database.next_experiment()
+            if not expe:
+                continue
+            log.info('Expe {} loaded'.format(expe.expe_hash))
+            try:
+                run(expe, hostpid)
+            except Exception as e:
+                log.error(e)
+                log.error('Error occured on expe {}'.format(expe.id))
+                time.sleep(60)
+
+
+if __name__ == '__main__':
+    logger.setup_logging()
+    log.info('Starting supervisor')
+    try:
+        with open('config.json') as f:
+            config = json.load(f)
+            process_count = config['process_count']
+    except Exception as e:
+        log.warning(e)
+        process_count = 1
+
+    for i in range(process_count):
+        Process(target=main, args=(i,)).start()
diff --git a/setup.py b/setup.py
index 9dbb74b..08e970f 100644
--- a/setup.py
+++ b/setup.py
@@ -11,10 +11,10 @@
 from distutils.core import setup
 
 setup(name='minigrida',
-      version='1.11',
+      version='2.0',
       description='Simple and decentralized computing grid',
       author='Florent Guiotte',
       author_email='florent.guiotte@uhb.fr',
       url='https://git.guiotte.fr/Florent/minigrida',
-      packages=['cvgenerators', 'descriptors', 'protocols'],
+      packages=['minigrida'],#'cvgenerators', 'descriptors', 'protocols', 'database'],
       )
diff --git a/supervisor.py b/supervisor.py
deleted file mode 100644
index 63cacb8..0000000
--- a/supervisor.py
+++ /dev/null
@@ -1,243 +0,0 @@
-#!/usr/bin/python
-# -*- coding: utf-8 -*-
-# \file supervisor.py
-# \brief TODO
-# \author Florent Guiotte <florent.guiotte@gmail.com>
-# \version 0.1
-# \date 07 sept. 2018
-#
-# TODO details
-
-import yaml
-import importlib
-import hashlib
-from collections import OrderedDict
-import time
-import os
-import datetime
-from pathlib import Path
-from operator import itemgetter
-import traceback
-import logging
-import logger
-from protocols.protocol import TestError
-
-ENRICHMENT_DIR = Path('./Enrichment/')
-TEST_DIR    = ENRICHMENT_DIR / 'Tests'
-STAGING_DIR = ENRICHMENT_DIR / 'Staging'
-RESULT_DIR  = ENRICHMENT_DIR / 'Results'
-FAILED_DIR  = ENRICHMENT_DIR / 'Failed'
-
-log = logging.getLogger('Supervisor [{}]'.format(os.uname()[1]))
-
-def setup_yaml():
-    """ Keep yaml ordered, newline string
-    from https://stackoverflow.com/a/8661021
-    """
-    represent_dict_order = lambda self, data: self.represent_mapping('tag:yaml.org,2002:map', data.items())
-    yaml.add_representer(OrderedDict, represent_dict_order)
-
-    """ https://stackoverflow.com/a/24291536 """
-    yaml.Dumper.org_represent_str = yaml.Dumper.represent_str
-    yaml.add_representer(str, repr_str, Dumper=yaml.Dumper)
-
-
-def repr_str(dumper, data):
-    if '\n' in data:
-        return dumper.represent_scalar(u'tag:yaml.org,2002:str',
-                                       data, style='|')
-    return dumper.org_represent_str(data)
-
-
-def update_queue():
-    tmp_queue = list()
-    for child in TEST_DIR.iterdir():
-        if child.is_file() and child.suffix == '.yml':
-            tmp_queue.append({'expe_file': ExpePath(child),
-                              'priority': get_priority(child)})
-
-    queue = sorted(tmp_queue, key=itemgetter('priority'))
-    return queue
-
-
-def get_priority(yml_file):
-    with open(yml_file) as f:
-        expe = OrderedDict(yaml.safe_load(f))
-    return expe['priority']
-
-
-def run(expe_file):
-    start_time = time.time()
-    log.info('Run test {}'.format(expe_file))
-    test = expe_file.read()
-
-    ### Stage experience
-    expe_file.stage(test)
-
-    ### Load protocol
-    try:
-        #protocol = getattr(importlib.import_module(test['protocol']['package']), test['protocol']['name'])
-        protocol_module = importlib.import_module(test['protocol']['package'])
-        importlib.reload(protocol_module)
-        protocol = getattr(protocol_module, test['protocol']['name'])
-        experience = protocol(test['expe'])
-    except Exception as e:
-        err = 'Could not load protocol from test {}'.format(expe_file)
-        log.warning(err)
-        expe_file.error(test, 'loading protocol', e)
-        raise TestError(err)
-    log.info('{} test protocol loaded'.format(experience))
-
-    ### Get hashes
-    test['hashes'] = experience.get_hashes()
-    test['report'] = create_report(experience, start_time)
-
-    ### Stage experience
-    expe_file.stage(test)
-
-    experience.set_results_base_name(expe_file.get_result_path())
-
-    ### Run test
-    try:
-        experience.run()
-    except Exception as e:
-        err = 'Experience error'
-        log.warning(err)
-        expe_file.error(test, 'testing', e)
-        raise TestError(err) 
-
-    end_time = time.time()
-
-    ### Get complete report
-    test['report'] = create_report(experience, start_time, end_time)
-
-    ### Get results
-    test['results'] = experience.get_results()
-
-    ### Write experience
-    expe_file.result(test)
-
-    ### End of test
-    log.info('Test complete')
-
-def create_report(experience, stime=None, etime=None):
-    expe_report = OrderedDict()
-    host = os.getenv("HOST")
-    expe_report['supervisor'] = host if host is not None else os.uname()[1]
-
-    # Dates
-    for datek, timev in zip(('start_date', 'end_date'), (stime, etime)):
-        expe_report[datek] = datetime.datetime.fromtimestamp(timev).strftime('Le %d/%m/%Y à %H:%M:%S') if timev is not None else None
-
-    # Ressources
-    ressources = OrderedDict()
-    ressources['ram'] = None
-    ressources['proccess_time'] = experience.get_process_time()
-    expe_report['ressources'] = ressources
-
-    return expe_report
-
-class ExpePath:
-    """Utility wrapper for expe files.
-
-    Extend pathlib Path with staging, result and errors function to move the
-    test report through the Enrichment center.
-
-    """
-    def __init__(self, path, hash_length=6):
-        self._actual = Path(path)
-        self._base_name = self._actual.stem
-        self._hash_length = hash_length
-        self._hash = None
-
-    def __str__(self):
-        return self._get_complete_name()
-
-    def read(self):
-        with open(self._actual) as f:
-            return OrderedDict(yaml.safe_load(f))
-
-    def _get_hash_name(self):
-        return '{}{}'.format(self._base_name,
-                '_' + self._hash[:self._hash_length] if self._hash is not None else '')
-
-    def _get_complete_name(self):
-        return self._get_hash_name() + '.yml'
-
-    def exists(self):
-        return self._actual.exists()
-
-    def stage(self, expe):
-        log.info('Staging {}'.format(self._base_name))
-        self._check_hash(expe)
-        self._write(STAGING_DIR, expe)
-
-    def result(self, expe):
-        log.info('Write results for test {}'.format(self._base_name))
-        self._check_hash(expe)
-        self._write(RESULT_DIR, expe)
-
-    def error(self, expe, when='', e=Exception):
-        error = OrderedDict()
-        error['when'] = when
-        error['what'] = str(e)
-        error['where'] = traceback.format_exc()
-        expe['error'] = error
-        self._write(FAILED_DIR, expe)
-
-    def get_result_path(self):
-        return Path(RESULT_DIR) / self._get_hash_name()
-
-    def _check_hash(self, expe):
-        if self._hash is None:
-            if 'hashes' in expe:
-                self._hash = expe['hashes']['global']
-
-    def _write(self, path, expe):
-        new_path = Path(path) / self._get_complete_name()
-        with open(new_path, 'w') as of:
-            yaml.dump(expe, of, 
-                      default_flow_style=False, 
-                      encoding=None, 
-                      allow_unicode=True)
-        self._actual.unlink()
-        self._actual = new_path
-    
-
-def watch_folder():
-    log.info('Waiting for test')
-    while not list(TEST_DIR.glob('*.yml')):
-        time.sleep(3)
-
-def main():
-    while(True):
-        try:
-            queue = update_queue()
-        except Exception:
-            log.error('Critical exception while updating work queue')
-            log.error(traceback.format_exc())
-            log.warning('Resuming')
-            continue
-        if not queue:
-            watch_folder()
-            continue
-        try:
-            expe_file = queue.pop()['expe_file']
-            while(not expe_file.exists() and queue):
-                expe_file = queue.pop()['expe_file']
-            if expe_file.exists():
-                run(expe_file)
-        except TestError:
-            log.warning('Test failed, error logged. Resuming')
-        except Exception:
-            log.error('Critical exception while running test. Resuming')
-            log.error(traceback.format_exc())
-            log.warning('Resuming')
-            continue
-    
-if __name__ == '__main__':
-    logger.setup_logging()
-    log.info('Starting supervisor')
-
-    setup_yaml()
-    main()