Added random plugin and other features

Moved from Yapsy again (it is not flexible enough), now we use a
custom solution.
The activation and deactivation of plugins is asynchronous, so
that plugins that take a long time don't interfere with the rest.

MANIFEST.in

@@ -0,0 +1,4 @@
+include requirements.txt
+include README.md
+include senpy/context.jsonld
+recursive-include *.senpy

app.py

@@ -15,19 +15,29 @@
 #    See the License for the specific language governing permissions and
 #    limitations under the License.
 """
-Simple Sentiment Analysis server for EUROSENTIMENT
+This is a helper for development. If you want to run Senpy use:
 
-This class shows how to use the nif_server module to create custom services.
+    python -m senpy
 """
+from gevent.monkey import patch_all; patch_all()
+import gevent
 import config
 from flask import Flask
 from senpy.extensions import Senpy
+import logging
+import os
+from gevent.wsgi import WSGIServer
+
+logging.basicConfig(level=logging.DEBUG)
 
 app = Flask(__name__)
-
-sp = Senpy()
-sp.init_app(app)
+mypath = os.path.dirname(os.path.realpath(__file__))
+sp = Senpy(app, os.path.join(mypath, "plugins"))
+sp.activate_all()
 
 if __name__ == '__main__':
+    import logging
+    logging.basicConfig(level=config.DEBUG)
     app.debug = config.DEBUG
-    app.run(host="0.0.0.0", use_reloader=False)
+    http_server = WSGIServer(('', config.SERVER_PORT), app)
+    http_server.serve_forever()

plugins/rand/rand.py

@@ -0,0 +1,32 @@
+import json
+import random
+
+from senpy.plugins import SentimentPlugin
+from senpy.models import Response, Opinion, Entry
+
+
+class Sentiment140Plugin(SentimentPlugin):
+    def analyse(self, **params):
+        lang = params.get("language", "auto")
+
+        p = params.get("prefix", None)
+        response = Response(prefix=p)
+        #polarity_value = self.maxPolarityValue*int(res.json()["data"][0]["polarity"]) * 0.25
+        polarity_value = max(-1, min(1, random.gauss(0.2,0.2)))
+        polarity = "marl:Neutral"
+        if polarity_value > 0:
+            polarity = "marl:Positive"
+        elif polarity_value < 0:
+            polarity = "marl:Negative"
+        entry = Entry(id="Entry0",
+                      text=params["input"],
+                      prefix=p)
+        opinion = Opinion(id="Opinion0",
+                          prefix=p,
+                          hasPolarity=polarity,
+                          polarityValue=polarity_value)
+        opinion["prov:wasGeneratedBy"] = self.id
+        entry.opinions.append(opinion)
+        entry.language = lang
+        response.entries.append(entry)
+        return response

plugins/rand/rand.senpy

@@ -0,0 +1,17 @@
+{
+    "name": "rand",
+    "module": "rand",
+    "description": "What my plugin broadly does",
+    "author": "@balkian",
+    "version": "0.1",
+    "extra_params": {
+        "language": {
+            "aliases": ["language", "l"],
+            "required": false,
+            "options": ["es", "en", "auto"]
+        }
+     },
+     "requirements": {},
+     "marl:maxPolarityValue": "1",
+     "marl:minPolarityValue": "-1"
+}

plugins/sentiment140/sentiment140.py

@@ -6,19 +6,6 @@ from senpy.models import Response, Opinion, Entry
 
 
 class Sentiment140Plugin(SentimentPlugin):
-    EXTRA_PARAMS = {
-        "language": {"aliases": ["language", "l"],
-                     "required": False,
-                     "options": ["es", "en", "auto"],
-                     }
-    }
-
-    def __init__(self, **kwargs):
-        super(Sentiment140Plugin, self).__init__(name="sentiment140",
-                                                 version="2.0",
-                                                 extraparams=self.EXTRA_PARAMS,
-                                                 **kwargs)
-
     def analyse(self, **params):
         lang = params.get("language", "auto")
         res = requests.post("http://www.sentiment140.com/api/bulkClassifyJson",
@@ -28,18 +15,23 @@ class Sentiment140Plugin(SentimentPlugin):
                                        )
                             )
 
-        response = Response()
-        polarity_value = int(res.json()["data"][0]["polarity"]) * 25
+        p = params.get("prefix", None)
+        response = Response(prefix=p)
+        polarity_value = self.maxPolarityValue*int(res.json()["data"][0]["polarity"]) * 0.25
         polarity = "marl:Neutral"
         if polarity_value > 50:
             polarity = "marl:Positive"
         elif polarity_value < 50:
             polarity = "marl:Negative"
-        entry = Entry(text=params["input"])
-        opinion = Opinion(polarity=polarity, polarity_value=polarity_value)
+        entry = Entry(id="Entry0",
+                      text=params["input"],
+                      prefix=p)
+        opinion = Opinion(id="Opinion0",
+                          prefix=p,
+                          hasPolarity=polarity,
+                          polarityValue=polarity_value)
+        opinion["prov:wasGeneratedBy"] = self.id
         entry.opinions.append(opinion)
         entry.language = lang
         response.entries.append(entry)
         return response
-
-plugin = Sentiment140Plugin()

plugins/sentiment140/sentiment140.senpy

@@ -0,0 +1,17 @@
+{
+    "name": "sentiment140",
+    "module": "sentiment140",
+    "description": "What my plugin broadly does",
+    "author": "@balkian",
+    "version": "0.1",
+    "extra_params": {
+        "language": {
+            "aliases": ["language", "l"],
+            "required": false,
+            "options": ["es", "en", "auto"]
+        }
+     },
+     "requirements": {},
+     "maxPolarityValue": "1",
+     "minPolarityValue": "0"
+}

requirements.txt

@@ -1,4 +1,7 @@
 Flask==0.10.1
 gunicorn==19.0.0
 requests==2.4.1
-GitPython==0.3.2.RC1
+GitPython==0.3.2.RC1
+Yapsy>=1.10.423
+gevent>=1.0.1
+PyLD>=0.6.5

senpy/__init__.py

@@ -18,8 +18,6 @@
 Sentiment analysis server in Python
 """
 
-VERSION = "0.2.7"
-
 import extensions
 import blueprints
 import plugins

senpy/__main__.py

@@ -1,7 +1,72 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#    Copyright 2014 J. Fernando Sánchez Rada - Grupo de Sistemas Inteligentes
+#                                                       DIT, UPM
+#
+#    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.
+"""
+Senpy is a modular sentiment analysis server. This script runs an instance of
+the server.
+
+"""
+from gevent.monkey import patch_all; patch_all(thread=False)
+import gevent
 from flask import Flask
-from extensions import Senpy
-app = Flask(__name__)
-sp = Senpy()
-sp.init_app(app)
-app.debug = True
-app.run()
+from senpy.extensions import Senpy
+import logging
+import os
+from gevent.wsgi import WSGIServer
+import argparse
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Run a Senpy server')
+    parser.add_argument('--level',
+                        "-l",
+                        metavar="logging_level",
+                        type=str,
+                        default="INFO",
+                        help='Logging level')
+    parser.add_argument('--debug',
+                        "-d",
+                        action='store_true',
+                        default=False,
+                        help='Run the application in debug mode')
+    parser.add_argument('--host',
+                        type=str,
+                        default = "127.0.0.1",
+                        help='Use 0.0.0.0 to accept requests from any host.')
+    parser.add_argument('--port',
+                        '-p',
+                        type=int,
+                        default = 5000,
+                        help='Port to listen on.')
+    parser.add_argument('--plugins-folder',
+                        '-f',
+                        type=str,
+                        default = "plugins",
+                        help='Where to look for plugins.')
+    args = parser.parse_args()
+    logging.basicConfig(level=getattr(logging,args.level))
+    app = Flask(__name__)
+    app.debug = args.debug
+    sp = Senpy(app, args.plugins_folder)
+    sp.activate_all()
+    import logging
+    http_server = WSGIServer((args.host, args.port), app)
+    try:
+        print "Server running on port %s:%d. Ctrl+C to quit" % (args.host,
+                                                                args.port)
+        http_server.serve_forever()
+    except KeyboardInterrupt:
+        http_server.stop()
+        print "Bye!"

senpy/blueprints.py

@@ -48,7 +48,7 @@ def get_params(req, params=BASIC_PARAMS):
             if alias in indict:
                 outdict[param] = indict[alias]
         if param not in outdict:
-            if options.get("required", False):
+            if options.get("required", False) and "default" not in options:
                 wrong_params[param] = params[param]
             else:
                 if "default" in options:
@@ -62,7 +62,7 @@ def get_params(req, params=BASIC_PARAMS):
                    "parameters": outdict,
                    "errors": {param: error for param, error in wrong_params.iteritems()}
                    }
-        raise ValueError(json.dumps(message))
+        raise ValueError(message)
     return outdict
 
 
@@ -88,13 +88,14 @@ def basic_analysis(params):
 @nif_blueprint.route('/', methods=['POST', 'GET'])
 def home():
     try:
-        algo = get_params(request).get("algorithm", None)
+        params = get_params(request)
+        algo = params.get("algorithm", None)
         specific_params = current_app.senpy.parameters(algo)
-        params = get_params(request, specific_params)
+        params.update(get_params(request, specific_params))
         response = current_app.senpy.analyse(**params)
         return jsonify(response)
     except ValueError as ex:
-        return ex.message
+        return jsonify(ex.message)
     except Exception as ex:
         return jsonify(status="400", message=ex.message)
 
@@ -110,23 +111,22 @@ def default():
 @nif_blueprint.route('/plugins/<plugin>/<action>', methods=['POST', 'GET'])
 def plugins(plugin=None, action="list"):
     filt = {}
+    sp = current_app.senpy
     if plugin:
         filt["name"] = plugin
-    plugs = current_app.senpy.filter_plugins(**filt)
+    plugs = sp.filter_plugins(**filt)
     if plugin and not plugs:
         return "Plugin not found", 400
     if action == "list":
         with_params = request.args.get("params", "") == "1"
-        dic = {plug: plugs[plug].jsonable(with_params) for plug in plugs}
+        if plugin:
+            dic = plugs[plugin].jsonable(with_params)
+        else:
+            dic = {plug: plugs[plug].jsonable(with_params) for plug in plugs}
         return jsonify(dic)
-    if action == "disable":
-        current_app.senpy.disable_plugin(plugin)
-        return "Ok"
-    elif action == "enable":
-        current_app.senpy.enable_plugin(plugin)
-        return "Ok"
-    elif action == "reload":
-        current_app.senpy.reload_plugin(plugin)
+    method = "{}_plugin".format(action)
+    if(hasattr(sp, method)):
+        getattr(sp, method)(plugin)
         return "Ok"
     else:
         return "action '{}' not allowed".format(action), 400

senpy/context.jsonld

@@ -8,31 +8,33 @@
     "nif": "http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core#",
     "onyx": "http://www.gsi.dit.upm.es/ontologies/onyx/ns#",
     "emotions": {
-        "@id": "onyx:hasEmotionSet",
-        "@type": "onyx:EmotionSet"
+        "@container": "@set",
+        "@id": "onyx:hasEmotionSet"
     },
     "opinions": {
-        "@container": "@list",
-        "@id": "marl:hasOpinion",
-        "@type": "marl:Opinion"
+        "@container": "@set",
+        "@id": "marl:hasOpinion"
     },
     "prov": "http://www.w3.org/ns/prov#",
     "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
     "analysis": {
+        "@container": "@set",
         "@id": "prov:wasInformedBy"
     },
     "entries": {
+        "@container": "@set",
         "@id": "prov:generated"
     },
     "strings": {
-        "@reverse": "nif:hasContext",
-        "@type": "nif:String"
+        "@container": "@set",
+        "@reverse": "nif:hasContext"
     },
     "date":
     {
         "@id": "dc:date",
         "@type": "xsd:dateTime"
     },
+    "text": { "@id": "nif:isString" },
     "wnaffect": "http://www.gsi.dit.upm.es/ontologies/wnaffect#",
     "xsd": "http://www.w3.org/2001/XMLSchema#"
 }

senpy/extensions.py

@@ -1,21 +1,22 @@
 """
 """
 import os
+import fnmatch
+import inspect
 import sys
 import imp
 import logging
+import gevent
+import json
 
 logger = logging.getLogger(__name__)
 
-from .plugins import SentimentPlugin, EmotionPlugin
-
-try:
-    from flask import _app_ctx_stack as stack
-except ImportError:
-    from flask import _request_ctx_stack as stack
+from .plugins import SenpyPlugin, SentimentPlugin, EmotionPlugin
+from .models import Error
 
 from .blueprints import nif_blueprint
 from git import Repo, InvalidGitRepositoryError
+from functools import partial
 
 
 class Senpy(object):
@@ -50,11 +51,13 @@ class Senpy(object):
         app.register_blueprint(nif_blueprint)
 
     def add_folder(self, folder):
+        logger.debug("Adding folder: %s", folder)
         if os.path.isdir(folder):
             self._search_folders.add(folder)
             self._outdated = True
             return True
         else:
+            logger.debug("Not a folder: %s", folder)
             return False
 
     def analyse(self, **params):
@@ -64,18 +67,23 @@ class Senpy(object):
             algo = params["algorithm"]
         elif self.plugins:
             algo = self.default_plugin
-        if algo in self.plugins and self.plugins[algo].enabled:
-            plug = self.plugins[algo]
-            resp = plug.analyse(**params)
-            resp.analysis.append(plug.jsonable())
-            return resp
+        if algo in self.plugins:
+            if self.plugins[algo].is_activated:
+                plug = self.plugins[algo]
+                resp = plug.analyse(**params)
+                resp.analysis.append(plug)
+                return resp
+            else:
+                logger.debug("Plugin not activated: {}".format(algo))
+                return Error(status=400, message="The algorithm '{}' is not activated yet".format(algo))
         else:
-            return {"status": 400, "message": "The algorithm '{}' is not valid".format(algo)}
+            logger.debug("The algorithm '{}' is not valid\nValid algorithms: {}".format(algo, self.plugins.keys()))
+            return Error(status=400, message="The algorithm '{}' is not valid".format(algo))
 
     @property
     def default_plugin(self):
-        candidates = self.filter_plugins(enabled=True)
-        if len(candidates) > 1:
+        candidates = self.filter_plugins(is_activated=True)
+        if len(candidates) > 0:
             candidate = candidates.keys()[0]
             logger.debug("Default: {}".format(candidate))
             return candidate
@@ -85,11 +93,38 @@ class Senpy(object):
     def parameters(self, algo):
         return getattr(self.plugins.get(algo or self.default_plugin), "params", {})
 
-    def enable_plugin(self, plugin):
-        self.plugins[plugin].enable()
+    def activate_all(self, sync=False):
+        ps = []
+        for plug in self.plugins.keys():
+            ps.append(self.activate_plugin(plug, sync=sync))
+        return ps
 
-    def disable_plugin(self, plugin):
-        self.plugins[plugin].disable()
+    def deactivate_all(self, sync=False):
+        ps = []
+        for plug in self.plugins.keys():
+            ps.append(self.deactivate_plugin(plug, sync=sync))
+        return ps
+
+    def _set_active_plugin(self, plugin_name, active=True, *args, **kwargs):
+        self.plugins[plugin_name].is_activated = active
+
+    def activate_plugin(self, plugin_name, sync=False):
+        plugin = self.plugins[plugin_name]
+        th = gevent.spawn(plugin.activate)
+        th.link_value(partial(self._set_active_plugin, plugin_name, True))
+        if sync:
+            th.join()
+        else:
+            return th
+
+    def deactivate_plugin(self, plugin_name, sync=False):
+        plugin = self.plugins[plugin_name]
+        th = gevent.spawn(plugin.deactivate)
+        th.link_value(partial(self._set_active_plugin, plugin_name, False))
+        if sync:
+            th.join()
+        else:
+            return th
 
     def reload_plugin(self, plugin):
         logger.debug("Reloading {}".format(plugin))
@@ -99,38 +134,47 @@ class Senpy(object):
         self.plugins[nplug.name] = nplug
 
     @staticmethod
-    def _load_plugin(plugin, search_folder, enabled=True):
-        logger.debug("Loading plugins")
-        sys.path.append(search_folder)
-        (fp, pathname, desc) = imp.find_module(plugin)
+    def _load_plugin(root, filename):
+        logger.debug("Loading plugin: {}".format(filename))
+        fpath = os.path.join(root, filename)
+        with open(fpath,'r') as f:
+            info = json.load(f)
+        logger.debug("Info: {}".format(info))
+        sys.path.append(root)
+        module = info["module"]
+        name = info["name"]
+        (fp, pathname, desc) = imp.find_module(module, [root,])
         try:
-            tmp = imp.load_module(plugin, fp, pathname, desc).plugin
-            sys.path.remove(search_folder)
-            tmp.path = search_folder
+            tmp = imp.load_module(module, fp, pathname, desc)
+            sys.path.remove(root)
+            candidate = None
+            for _, obj in inspect.getmembers(tmp):
+                if inspect.isclass(obj) and inspect.getmodule(obj) == tmp:
+                    logger.debug("Found plugin class: {}@{}".format(obj, inspect.getmodule(obj)))
+                    candidate = obj
+                    break
+            if not candidate:
+                logger.debug("No valid plugin for: {}".format(filename))
+                return
+            module = candidate(info=info)
             try:
-                repo_path = os.path.join(search_folder, plugin)
-                tmp.repo = Repo(repo_path)
+                repo_path = root
+                module._repo = Repo(repo_path)
             except InvalidGitRepositoryError:
-                tmp.repo = None
-            if not hasattr(tmp, "enabled"):
-                tmp.enabled = enabled
-            tmp.module = plugin
+                module._repo = None
         except Exception as ex:
-            tmp = None
-            logger.debug("Exception importing {}: {}".format(plugin, ex))
-        return tmp
+            logger.debug("Exception importing {}: {}".format(filename, ex))
+            return None, None
+        return name, module
 
     def _load_plugins(self):
         plugins = {}
         for search_folder in self._search_folders:
-            for item in os.listdir(search_folder):
-                if os.path.isdir(os.path.join(search_folder, item)) \
-                        and os.path.exists(os.path.join(search_folder,
-                                                        item,
-                                                        "__init__.py")):
-                    plugin = self._load_plugin(item, search_folder)
+            for root, dirnames, filenames in os.walk(search_folder):
+                for filename in fnmatch.filter(filenames, '*.senpy'):
+                    name, plugin = self._load_plugin(root, filename)
                     if plugin:
-                        plugins[plugin.name] = plugin
+                        plugins[name] = plugin
 
         self._outdated = False
         return plugins
@@ -138,18 +182,12 @@ class Senpy(object):
     def teardown(self, exception):
         pass
 
-    def enable_all(self):
-        for plugin in self.plugins:
-            self.enable_plugin(plugin)
-
     @property
     def plugins(self):
         """ Return the plugins registered for a given application.  """
-        ctx = stack.top
-        if ctx is not None:
-            if not hasattr(ctx, 'senpy_plugins') or self._outdated:
-                ctx.senpy_plugins = self._load_plugins()
-            return ctx.senpy_plugins
+        if not hasattr(self, 'senpy_plugins') or self._outdated:
+            self.senpy_plugins = self._load_plugins()
+        return self.senpy_plugins
 
     def filter_plugins(self, **kwargs):
         """ Filter plugins by different criteria """
@@ -169,4 +207,4 @@ class Senpy(object):
     def sentiment_plugins(self):
         """ Return only the sentiment plugins """
         return {p: plugin for p, plugin in self.plugins.items() if
-                isinstance(plugin, SentimentPlugin)}
+                isinstance(plugin, SentimentPlugin)}

senpy/models.py

@@ -1,63 +1,223 @@
 import json
 import os
 from collections import defaultdict
+from pyld import jsonld
 
 
-class Leaf(defaultdict):
-    def __init__(self, ofclass=list):
-        super(Leaf, self).__init__(ofclass)
 
-    def __getattr__(self, name):
-        return super(Leaf, self).__getitem__(name)
+class Leaf(dict):
+    _prefix = None
+    _frame = {}
+    _context = {}
 
-    def __setattr__(self, name, value):
-        self[name] = value
+    def __init__(self,
+                 id=None,
+                 context=None,
+                 vocab=None,
+                 prefix=None,
+                 frame=None):
+        super(Leaf, self).__init__()
+        if context is not None:
+            self.context = context
+        elif self._context:
+            self.context = self._context
+        else:
+            self.context = {}
+        if frame is not None:
+            self._frame = frame
+        self._prefix = prefix
+        self.id = id
+
+    def __getattr__(self, key):
+        try:
+            return object.__getattr__(self, key)
+        except AttributeError:
+            try:
+                return super(Leaf, self).__getitem__(self._get_key(key))
+            except KeyError:
+                raise AttributeError()
+
+    def __setattr__(self, key, value):
+        try:
+            object.__getattr__(self, key)
+            object.__setattr__(self, key, value)
+        except AttributeError:
+            key = self._get_key(key)
+            if key == "@context":
+                value = self.get_context(value)
+            elif key == "@id":
+                value = self.get_id(value)
+            if key[0] == "_":
+                object.__setattr__(self, key, value)
+            else:
+                if value is None:
+                    try:
+                        super(Leaf, self).__delitem__(key)
+                    except KeyError:
+                        pass
+                else:
+                    super(Leaf, self).__setitem__(key, value)
+
+    def get_id(self, id):
+        """
+        This is not the most elegant solution to change the @id attribute, but it
+        is the quickest way to have it included in the dictionary without extra
+        boilerplate.
+        """
+        if id and self._prefix and ":" not in id:
+            return "{}{}".format(self._prefix, id)
+        else:
+            return id
+
+    def __delattr__(self, key):
+        return super(Leaf, self).__delitem__(self._get_key(key))
+
+    def _get_key(self, key):
+        if key[0] == "_":
+            return key
+        elif key in ["context", "id"]:
+            return "@{}".format(key)
+        else:
+            return key
+
+    @staticmethod
+    def get_context(context):
+        if isinstance(context, list):
+            contexts = []
+            for c in context:
+                contexts.append(Response.get_context(c))
+            return contexts
+        elif isinstance(context, dict):
+            return context
+        elif isinstance(context, basestring):
+            try:
+                with open(context) as f:
+                    return json.loads(f.read())
+            except IOError:
+                return context
+
+    def compact(self):
+        return jsonld.compact(self, self.context)
+
+    def frame(self, frame=None, options=None):
+        if frame is None:
+            frame = self._frame
+        if options is None:
+            options = {}
+        return jsonld.frame(self, frame, options)
+
+    def jsonable(self, parameters=False, frame=None, options=None, context=None):
+        if frame is None:
+            frame = self._frame
+        if options is None:
+            options = {}
+        if context is None:
+            context = self._context
+        return jsonld.compact(jsonld.frame(self, frame, options), context)
+        #if parameters:
+            #resp["parameters"] = self.params
+        #elif self.extra_params:
+            #resp["extra_parameters"] = self.extra_params
+        #return resp
+
+
+    def to_JSON(self):
+        return json.dumps(self,
+                          default=lambda o: o.__dict__,
+                          sort_keys=True, indent=4)
 
-    def __delattr__(self, name):
-        return super(Leaf, self).__delitem__(name)
 
 
 class Response(Leaf):
-    def __init__(self, context=None):
-        super(Response, self).__init__()
-        self["analysis"] = []
-        self["entries"] = []
+    _frame =  { "@context": {
+                    "analysis": {
+                        "@container": "@set",
+                        "@id": "prov:wasInformedBy"
+                    },
+                    "date": {
+                        "@id": "dc:date",
+                        "@type": "xsd:dateTime"
+                    },
+                    "dc": "http://purl.org/dc/terms/",
+                    "dc:subject": {
+                        "@type": "@id"
+                    },
+                    "emotions": {
+                        "@container": "@set",
+                        "@id": "onyx:hasEmotionSet"
+                    },
+                    "entries": {
+                        "@container": "@set",
+                        "@id": "prov:generated"
+                    },
+                    "marl": "http://www.gsi.dit.upm.es/ontologies/marl/ns#",
+                    "nif": "http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core#",
+                    "onyx": "http://www.gsi.dit.upm.es/ontologies/onyx/ns#",
+                    "opinions": {
+                        "@container": "@set",
+                        "@id": "marl:hasOpinion"
+                    },
+                    "prov": "http://www.w3.org/ns/prov#",
+                    "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
+                    "strings": {
+                        "@container": "@set",
+                        "@reverse": "nif:hasContext"
+                    },
+                    "wnaffect": "http://www.gsi.dit.upm.es/ontologies/wnaffect#",
+                    "xsd": "http://www.w3.org/2001/XMLSchema#"
+                },
+                "analysis": {},
+                "entries": {}
+    }
+
+    def __init__(self, context=None, *args, **kwargs):
         if context is None:
             context = "{}/context.jsonld".format(os.path.dirname(
                 os.path.realpath(__file__)))
-        if isinstance(context, dict):
-            self["@context"] = context
-        if isinstance(context, str) or isinstance(context, unicode):
-            try:
-                with open(context) as f:
-                    self["@context"] = json.loads(f.read())
-            except IOError:
-                self["@context"] = context
+        super(Response, self).__init__(*args, context=context, **kwargs)
+        self.analysis = []
+        self.entries = []
 
 
 class Entry(Leaf):
+    _context = {
+        "@vocab": "http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core#"
+
+    }
     def __init__(self, text=None, emotion_sets=None, opinions=None, **kwargs):
         super(Entry, self).__init__(**kwargs)
         if text:
             self.text = text
-        if emotion_sets:
-            self.emotionSets = emotion_sets
-        if opinions:
-            self.opinions = opinions
-
+        self.emotionSets = emotion_sets if emotion_sets else []
+        self.opinions = opinions if opinions else []
 
 class Opinion(Leaf):
-    def __init__(self, polarity_value=None, polarity=None, **kwargs):
-        super(Opinion, self).__init__(**kwargs)
-        if polarity_value is not None:
-            self.polarity_value = polarity_value
-        if polarity is not None:
-            self.polarity = polarity
+    _context = {
+        "@vocab": "http://www.gsi.dit.upm.es/ontologies/marl/ns#"
+    }
+    def __init__(self, polarityValue=None, hasPolarity=None, *args, **kwargs):
+        super(Opinion, self).__init__(*args,
+                                      **kwargs)
+        if polarityValue is not None:
+            self.hasPolarityValue = polarityValue
+        if hasPolarity is not None:
+            self.hasPolarity = hasPolarity
 
 
 class EmotionSet(Leaf):
-    def __init__(self, emotions=None, **kwargs):
+    _context = {}
+    def __init__(self, emotions=None, *args, **kwargs):
         if not emotions:
             emotions = []
-        super(EmotionSet, self).__init__(**kwargs)
+        super(EmotionSet, self).__init__(context=EmotionSet._context,
+                                         *args,
+                                         **kwargs)
         self.emotions = emotions or []
+
+class Emotion(Leaf):
+    _context = {}
+
+class Error(Leaf):
+    def __init__(self, *args, **kwargs):
+        super(Error, self).__init__(*args)
+        self.update(kwargs)

senpy/plugins.py

@@ -1,4 +1,6 @@
 import logging
+import ConfigParser
+from .models import Leaf
 
 logger = logging.getLogger(__name__)
 
@@ -25,6 +27,10 @@ PARAMS = {"input": {"aliases": ["i", "input"],
                        "required": False,
                        "options": ["es", "en"],
                        },
+          "prefix": {"aliases": ["prefix", "p"],
+                     "required": True,
+                     "default": "",
+          },
           "urischeme": {"aliases": ["urischeme", "u"],
                         "required": False,
                         "default": "RFC5147String",
@@ -33,72 +39,54 @@ PARAMS = {"input": {"aliases": ["i", "input"],
           }
 
 
-class SenpyPlugin(object):
-    def __init__(self, name=None, version=None, extraparams=None, params=None):
-        logger.debug("Initialising {}".format(name))
-        self.name = name
-        self.version = version
-        if params:
-            self.params = params
-        else:
-            self.params = PARAMS.copy()
-            if extraparams:
-                self.params.update(extraparams)
-        self.extraparams = extraparams or {}
-        self.enabled = True
+class SenpyPlugin(Leaf):
+    _context = {"@vocab": "http://www.gsi.dit.upm.es/ontologies/senpy/ns#",
+                "info": None}
+    _frame = { "@context": _context,
+              "name": {},
+              "@explicit": False,
+              "version": {},
+              "repo": None,
+              "info": None,
+              }
+    def __init__(self, info=None):
+        if not info:
+            raise ValueError("You need to provide configuration information for the plugin.")
+        logger.debug("Initialising {}".format(info))
+        super(SenpyPlugin, self).__init__()
+        self.name = info["name"]
+        self.version = info["version"]
+        self.id="{}_{}".format(self.name, self.version)
+        self.params = info.get("params", PARAMS.copy())
+        self.extra_params = info.get("extra_params", {})
+        self.params.update(self.extra_params)
+        self.is_activated = False
+        self.info = info
 
     def analyse(self, *args, **kwargs):
+        logger.debug("Analysing with: {} {}".format(self.name, self.version))
         pass
 
-    def enable(self):
-        self.enabled = True
+    def activate(self):
+        pass
 
-    def disable(self):
-        self.enabled = False
+    def deactivate(self):
+        pass
 
-    def jsonable(self, parameters=False):
-        resp = {
-            "@id": "{}_{}".format(self.name, self.version),
-            "enabled": self.enabled,
-        }
-        if hasattr(self, "repo") and self.repo:
-            resp["repo"] = self.repo.remotes[0].url
-        if parameters:
-            resp["parameters"] = self.params
-        elif self.extraparams:
-            resp["extra_parameters"] = self.extraparams
-        return resp
+
+    @property
+    def id(self):
+        return "{}_{}".format(self.name, self.version)
 
 
 class SentimentPlugin(SenpyPlugin):
-    def __init__(self,
-                 min_polarity_value=0,
-                 max_polarity_value=1,
-                 **kwargs):
-        super(SentimentPlugin, self).__init__(**kwargs)
-        self.minPolarityValue = min_polarity_value
-        self.maxPolarityValue = max_polarity_value
-
-    def jsonable(self, *args, **kwargs):
-        resp = super(SentimentPlugin, self).jsonable(*args, **kwargs)
-        resp["marl:maxPolarityValue"] = self.maxPolarityValue
-        resp["marl:minPolarityValue"] = self.minPolarityValue
-        return resp
-
+    def __init__(self, info, *args, **kwargs):
+        super(SentimentPlugin, self).__init__(info, *args, **kwargs)
+        self.minPolarityValue = float(info.get("minPolarityValue", 0))
+        self.maxPolarityValue = float(info.get("maxPolarityValue", 1))
 
 class EmotionPlugin(SenpyPlugin):
-    def __init__(self,
-                 min_emotion_value=0,
-                 max_emotion_value=1,
-                 emotion_category=None,
-                 **kwargs):
-        super(EmotionPlugin, self).__init__(**kwargs)
-        self.minEmotionValue = min_emotion_value
-        self.maxEmotionValue = max_emotion_value
-        self.emotionCategory = emotion_category
-
-    def jsonable(self, *args, **kwargs):
-        resp = super(EmotionPlugin, self).jsonable(*args, **kwargs)
-        resp["onyx:minEmotionValue"] = self.minEmotionValue
-        resp["onyx:maxEmotionValue"] = self.maxEmotionValue
-        return resp
+    def __init__(self, info, *args, **kwargs):
+        resp = super(EmotionPlugin, self).__init__(info, *args, **kwargs)
+        self.minEmotionValue = float(info.get("minEmotionValue", 0))
+        self.maxEmotionValue = float(info.get("maxEmotionValue", 0))

setup.py

@@ -1,10 +1,21 @@
 from setuptools import setup
-import senpy
+from pip.req import parse_requirements
+
+# parse_requirements() returns generator of pip.req.InstallRequirement objects
+install_reqs = parse_requirements("requirements.txt")
+
+# reqs is a list of requirement
+# e.g. ['django==1.5.1', 'mezzanine==1.4.6']
+reqs = [str(ir.req) for ir in install_reqs]
+
+VERSION = "0.3.2"
+
+print(reqs)
 
 setup(
     name='senpy',
     packages=['senpy'],  # this must be the same as the name above
-    version=senpy.VERSION,
+    version=VERSION,
     description='''
     A sentiment analysis server implementation. Designed to be \
 extendable, so new algorithms and sources can be used.
@@ -12,7 +23,9 @@ extendable, so new algorithms and sources can be used.
     author='J. Fernando Sanchez',
     author_email='balkian@gmail.com',
     url='https://github.com/balkian/senpy',  # use the URL to the github repo
-    download_url='https://github.com/balkian/senpy/archive/{}.tar.gz'.format(senpy.VERSION),
+    download_url='https://github.com/balkian/senpy/archive/{}.tar.gz'.format(VERSION),
     keywords=['eurosentiment', 'sentiment', 'emotions', 'nif'],  # arbitrary keywords
     classifiers=[],
+    install_requires=reqs,
+    include_package_data = True,
 )

tests/__init__.py

@@ -1 +0,0 @@
-

tests/blueprints_test/__init__.py

@@ -1,4 +1,3 @@
-
 import os
 import logging
 
@@ -9,6 +8,7 @@ except ImportError:
 from senpy.extensions import Senpy
 from flask import Flask
 from flask.ext.testing import TestCase
+from gevent import sleep
 
 
 def check_dict(indic, template):
@@ -22,6 +22,7 @@ class BlueprintsTest(TestCase):
         self.senpy.init_app(self.app)
         self.dir = os.path.join(os.path.dirname(__file__), "..")
         self.senpy.add_folder(self.dir)
+        self.senpy.activate_plugin("Dummy", sync=True)
         return self.app
 
     def test_home(self):
@@ -36,3 +37,43 @@ class BlueprintsTest(TestCase):
         }
         assert check_dict(resp.json, atleast)
 
+    def test_analysis(self):
+        """ The dummy plugin returns an empty response, it should contain the context """
+        resp = self.client.get("/?i=My aloha mohame")
+        self.assert200(resp)
+        logging.debug(resp.json)
+        assert "@context" in resp.json
+        assert check_dict(resp.json["@context"], {"marl": "http://www.gsi.dit.upm.es/ontologies/marl/ns#"})
+        assert "entries" in resp.json
+
+    def test_list(self):
+        """ List the plugins """
+        resp = self.client.get("/plugins/")
+        self.assert200(resp)
+        logging.debug(resp.json)
+        assert "Dummy" in resp.json
+
+    def test_detail(self):
+        """ Show only one plugin"""
+        resp = self.client.get("/plugins/Dummy")
+        self.assert200(resp)
+        logging.debug(resp.json)
+        assert "@id" in resp.json
+        assert resp.json["@id"] == "Dummy_0.1"
+
+    def test_activate(self):
+        """ Activate and deactivate one plugin """
+        resp = self.client.get("/plugins/Dummy/deactivate")
+        self.assert200(resp)
+        sleep(0.5)
+        resp = self.client.get("/plugins/Dummy")
+        self.assert200(resp)
+        assert "is_activated" in resp.json
+        assert resp.json["is_activated"] == False
+        resp = self.client.get("/plugins/Dummy/activate")
+        self.assert200(resp)
+        sleep(0.5)
+        resp = self.client.get("/plugins/Dummy")
+        self.assert200(resp)
+        assert "is_activated" in resp.json
+        assert resp.json["is_activated"] == True

tests/context.jsonld

@@ -0,0 +1,40 @@
+{
+    "dc": "http://purl.org/dc/terms/",
+    "dc:subject": {
+        "@type": "@id"
+    },
+    "xsd": "http://www.w3.org/2001/XMLSchema#",
+    "marl": "http://www.gsi.dit.upm.es/ontologies/marl/ns#",
+    "nif": "http://persistence.uni-leipzig.org/nlp2rdf/ontologies/nif-core#",
+    "onyx": "http://www.gsi.dit.upm.es/ontologies/onyx/ns#",
+    "emotions": {
+        "@container": "@set",
+        "@id": "onyx:hasEmotionSet"
+    },
+    "opinions": {
+        "@container": "@set",
+        "@id": "marl:hasOpinion"
+    },
+    "prov": "http://www.w3.org/ns/prov#",
+    "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
+    "analysis": {
+        "@container": "@set",
+        "@id": "prov:wasInformedBy"
+    },
+    "entries": {
+        "@container": "@set",
+        "@id": "prov:generated"
+    },
+    "strings": {
+        "@container": "@set",
+        "@reverse": "nif:hasContext"
+    },
+    "date":
+    {
+        "@id": "dc:date",
+        "@type": "xsd:dateTime"
+    },
+    "text": { "@id": "nif:isString" },
+    "wnaffect": "http://www.gsi.dit.upm.es/ontologies/wnaffect#",
+    "xsd": "http://www.w3.org/2001/XMLSchema#"
+}

tests/dummy_plugin/__init__.py

@@ -1,3 +0,0 @@
-from senpy.plugins import SenpyPlugin
-
-plugin = SenpyPlugin("dummy")

tests/dummy_plugin/dummy.py

@@ -0,0 +1,6 @@
+from senpy.plugins import SentimentPlugin
+from senpy.models import Response
+
+class DummyPlugin(SentimentPlugin):
+    def analyse(self, *args, **kwargs):
+        return Response()

tests/dummy_plugin/dummy.senpy

@@ -0,0 +1,7 @@
+{
+    "name": "Dummy",
+    "module": "dummy",
+    "description": "I am dummy",
+    "author": "@balkian",
+    "version": "0.1"
+}

tests/extensions_test/__init__.py

@@ -13,10 +13,10 @@ from flask.ext.testing import TestCase
 class ExtensionsTest(TestCase):
     def create_app(self):
         self.app = Flask("test_extensions")
-        self.senpy = Senpy()
-        self.senpy.init_app(self.app)
         self.dir = os.path.join(os.path.dirname(__file__), "..")
-        self.senpy.add_folder(self.dir)
+        self.senpy = Senpy(plugin_folder=self.dir)
+        self.senpy.init_app(self.app)
+        self.senpy.activate_plugin("Dummy", sync=True)
         return self.app
 
     def test_init(self):
@@ -31,41 +31,43 @@ class ExtensionsTest(TestCase):
         # noinspection PyProtectedMember
         assert self.dir in self.senpy._search_folders
         print self.senpy.plugins
-        assert "dummy" in self.senpy.plugins
+        assert "Dummy" in self.senpy.plugins
 
     def test_enabling(self):
         """ Enabling a plugin """
-        self.senpy.enable_plugin("dummy")
-        assert self.senpy.plugins["dummy"].enabled
+        self.senpy.activate_all(sync=True)
+        assert len(self.senpy.plugins) == 2
+        assert self.senpy.plugins["Sleep"].is_activated
 
     def test_disabling(self):
         """ Disabling a plugin """
-        self.senpy.enable_plugin("dummy")
-        self.senpy.disable_plugin("dummy")
-        assert not self.senpy.plugins["dummy"].enabled
+        self.senpy.deactivate_all(sync=True)
+        assert self.senpy.plugins["Dummy"].is_activated == False
+        assert self.senpy.plugins["Sleep"].is_activated == False
 
     def test_default(self):
         """ Default plugin should be set """
         assert self.senpy.default_plugin
-        assert self.senpy.default_plugin == "dummy"
+        assert self.senpy.default_plugin == "Dummy"
 
     def test_analyse(self):
         """ Using a plugin """
-        with mock.patch.object(self.senpy.plugins["dummy"], "analyse") as mocked:
-            self.senpy.analyse(algorithm="dummy", input="tupni", output="tuptuo")
-            self.senpy.analyse(input="tupni", output="tuptuo")
-        mocked.assert_any_call(input="tupni", output="tuptuo", algorithm="dummy")
-        mocked.assert_any_call(input="tupni", output="tuptuo")
+        # I was using mock until plugin started inheriting Leaf (defaultdict with
+        # __setattr__ and __getattr__.
+        r1 = self.senpy.analyse(algorithm="Dummy", input="tupni", output="tuptuo")
+        r2 = self.senpy.analyse(input="tupni", output="tuptuo")
+        assert r1.analysis[0].id[:5] == "Dummy"
+        assert r2.analysis[0].id[:5] == "Dummy"
         for plug in self.senpy.plugins:
-            self.senpy.disable_plugin(plug)
+            self.senpy.deactivate_plugin(plug, sync=True)
         resp = self.senpy.analyse(input="tupni")
         logging.debug("Response: {}".format(resp))
         assert resp["status"] == 400
 
     def test_filtering(self):
         """ Filtering plugins """
-        assert len(self.senpy.filter_plugins(name="dummy")) > 0
+        assert len(self.senpy.filter_plugins(name="Dummy")) > 0
         assert not len(self.senpy.filter_plugins(name="notdummy"))
-        assert self.senpy.filter_plugins(name="dummy", enabled=True)
-        self.senpy.disable_plugin("dummy")
-        assert not len(self.senpy.filter_plugins(name="dummy", enabled=True))
+        assert self.senpy.filter_plugins(name="Dummy", is_activated=True)
+        self.senpy.deactivate_plugin("Dummy", sync=True)
+        assert not len(self.senpy.filter_plugins(name="Dummy", is_activated=True))

tests/models_test/__init__.py

@@ -0,0 +1,36 @@
+import os
+import logging
+
+try:
+    import unittest.mock as mock
+except ImportError:
+    import mock
+import json
+import os
+from unittest import TestCase
+from senpy.models import Response
+from senpy.plugins import SenpyPlugin
+
+class ModelsTest(TestCase):
+    def test_response(self):
+        r = Response(context=os.path.normpath(os.path.join(__file__, "..", "..", "context.jsonld")))
+        assert("@context" in r)
+        assert("marl" in r.context)
+        r2 = Response(context=json.loads('{"test": "roger"}'))
+        assert("test" in r2.context)
+        r3 = Response(context=None)
+        del r3.context
+        assert("@context" not in r3)
+        assert("entries" in r3)
+        assert("analysis" in r3)
+
+    def test_opinions(self):
+        pass
+
+    def test_frame_plugin(self):
+        p = SenpyPlugin({"name": "dummy", "version": 0})
+        c = p.frame()
+        assert "info" not in c
+
+    def test_frame_response(self):
+        pass

tests/sleep_plugin/sleep.py

@@ -0,0 +1,14 @@
+from senpy.plugins import SenpyPlugin
+from senpy.models import Response
+from time import sleep
+
+class SleepPlugin(SenpyPlugin):
+    def __init__(self, info, *args, **kwargs):
+        super(SleepPlugin, self).__init__(info, *args, **kwargs)
+        self.timeout = int(info["timeout"])
+
+    def activate(self, *args, **kwargs):
+        sleep(self.timeout)
+
+    def analyse(self, *args, **kwargs):
+        return Response()

tests/sleep_plugin/sleep.senpy

@@ -0,0 +1,8 @@
+{
+    "name": "Sleep",
+    "module": "sleep",
+    "description": "I am dummy",
+    "author": "@balkian",
+    "version": "0.1",
+    "timeout": "2"
+}