Contextualization

ooi/api/__init__.py

@@ -1,107 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# Copyright 2015 Spanish National Research Council
-#
-# 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.
-
-import collections
-import shlex
-
-import six.moves.urllib.parse as urlparse
-
-from ooi import exception
-
-
-def _lexize(s, separator, ignore_whitespace=False):
-    lex = shlex.shlex(instream=s, posix=True)
-    lex.commenters = ""
-    if ignore_whitespace:
-        lex.whitespace = separator
-    else:
-        lex.whitespace += separator
-    lex.whitespace_split = True
-    return list(lex)
-
-
-def parse(f):
-    def _parse(obj, req, *args, **kwargs):
-        headers = {}
-        try:
-            l = []
-            params = {}
-            for ctg in _lexize(req.headers["Category"],
-                               separator=',',
-                               ignore_whitespace=True):
-                ll = _lexize(ctg, ';')
-                d = {"term": ll[0]}  # assumes 1st element => term's value
-                d.update(dict([i.split('=') for i in ll[1:]]))
-                l.append(d)
-                params[urlparse.urlparse(d["scheme"]).path] = d["term"]
-            headers["Category"] = l
-        except KeyError:
-            raise exception.HeaderNotFound(header="Category")
-
-        return f(obj, req, headers, params, *args, **kwargs)
-    return _parse
-
-
-def _get_header_by_class(headers, class_id):
-    return [h for h in headers["Category"] if h["class"] in [class_id]]
-
-
-def validate(class_id, schemas, term=None):
-    def accepts(f):
-        def _validate(obj, req, headers, params, *args, **kwargs):
-            """Category headers validation.
-
-            Arguments::
-                class_id:        type of OCCI class (kind, mixin, ..).
-                schemas:         dict mapping the mandatory schemas with its
-                                 occurrences.
-                term (optional): if present, validates its value.
-
-            Validation checks::
-                class_presence:     asserts the existance of given class_id.
-                scheme_occurrences: enforces the number of occurrences of the
-                                    given schemas.
-                term_validation:    asserts the correct term value of the
-                                    matching headers.
-            """
-            header_l = _get_header_by_class(headers, class_id)
-
-            def class_presence():
-                if not header_l:
-                    raise exception.OCCINoClassFound(class_id=class_id)
-
-            def scheme_occurrences():
-                d = collections.Counter([h["scheme"]
-                                         for h in header_l])
-                s = set(d.items()) ^ set(schemas.items())
-                if len(s) != 0:
-                    mismatched_schemas = [(scheme, d[scheme])
-                                          for scheme in dict(s).keys()]
-                    raise exception.OCCISchemaOccurrencesMismatch(
-                        mismatched_schemas=mismatched_schemas)
-
-            def term_validation():
-                if [h for h in header_l if h["term"] not in [term]]:
-                    raise exception.OCCINotCompliantTerm(term=term)
-
-            class_presence()
-            scheme_occurrences()
-            if term:
-                term_validation()
-
-            return f(obj, req, headers, params, *args, **kwargs)
-        return _validate
-    return accepts

ooi/api/base.py

@@ -74,6 +74,15 @@ def get_from_response(response, element, default):
         else:
             raise exception_from_response(response)
 
+    @staticmethod
+    def validate(schema):
+        def accepts(f):
+            def _validate(obj, req, body, *args, **kwargs):
+                parsed_obj = req.validate(schema)
+                return f(obj, parsed_obj, req, body, *args, **kwargs)
+            return _validate
+        return accepts
+
 
 def exception_from_response(response):
     """Convert an OpenStack V2 Fault into a webob exception.

ooi/api/compute.py

@@ -16,10 +16,12 @@
 
 import json
 
-import ooi.api
 import ooi.api.base
 from ooi.occi.core import collection
 from ooi.occi.infrastructure import compute
+from ooi.occi.infrastructure import storage
+from ooi.occi.infrastructure import storage_link
+from ooi.openstack import contextualization
 from ooi.openstack import helpers
 from ooi.openstack import templates
 
@@ -64,30 +66,42 @@ def index(self, req):
 
         return collection.Collection(resources=occi_compute_resources)
 
-    @ooi.api.parse
-    @ooi.api.validate("kind",
-                      {"http://schemas.ogf.org/occi/infrastructure#": 1},
-                      term="compute")
-    @ooi.api.validate("mixin",
-                      {"http://schemas.openstack.org/template/resource#": 1,
-                       "http://schemas.openstack.org/template/os#": 1})
-    def create(self, req, headers, params, body):
+    @ooi.api.base.Controller.validate(
+        {"kind": compute.ComputeResource.kind,
+         "mixins": [
+             templates.OpenStackOSTemplate,
+             templates.OpenStackResourceTemplate,
+         ],
+         "optional_mixins": [
+             contextualization.user_data,
+             contextualization.public_key,
+         ]
+         })
+    def create(self, obj, req, body):
         tenant_id = req.environ["keystone.token_auth"].user.project_id
+        name = obj.get("occi.core.title", "OCCI VM")
+        image = obj["schemes"][templates.OpenStackOSTemplate.scheme][0]
+        flavor = obj["schemes"][templates.OpenStackResourceTemplate.scheme][0]
+        req_body = {"server": {
+            "name": name,
+            "imageRef": image,
+            "flavorRef": flavor,
+        }}
+        if contextualization.user_data.scheme in obj["schemes"]:
+            req_body["user_data"] = obj.get("org.openstack.compute.user_data")
+        # TODO(enolfc): add here the correct metadata info
+        # if contextualization.public_key.scheme in obj["schemes"]:
+        #     req_body["metadata"] = XXX
         req = self._get_req(req,
                             path="/%s/servers" % tenant_id,
                             content_type="application/json",
-                            body=json.dumps({
-                                "server": {
-                                    "name": params["/occi/infrastructure"],
-                                    "imageRef": params["/template/os"],
-                                    "flavorRef": params["/template/resource"]
-                                }}))
+                            body=json.dumps(req_body))
         response = req.get_response(self.app)
         # We only get one server
         server = self.get_from_response(response, "server", {})
 
         # The returned JSON does not contain the server name
-        server["name"] = params["/occi/infrastructure"]
+        server["name"] = name
         occi_compute_resources = self._get_compute_resources([server])
 
         return collection.Collection(resources=occi_compute_resources)
@@ -124,8 +138,13 @@ def show(self, req, id):
                                        cores=flavor["vcpus"],
                                        hostname=s["name"],
                                        memory=flavor["ram"],
-                                       state=helpers.occi_state(s["status"]),
+                                       state=helpers.vm_state(s["status"]),
                                        mixins=[os_tpl, res_tpl])
+        # storage links
+        vols_attached = s.get("os-extended-volumes:volumes_attached", [])
+        for v in vols_attached:
+            st = storage.StorageResource(title="storage", id=v["id"])
+            comp._links.append(storage_link.StorageLink(comp, st))
         return [comp]
 
     def delete(self, req, id):

ooi/api/query.py

@@ -19,8 +19,10 @@
 from ooi.occi.core import link
 from ooi.occi.core import resource
 from ooi.occi.infrastructure import compute
+from ooi.occi.infrastructure import storage
+from ooi.occi.infrastructure import storage_link
 from ooi.occi.infrastructure import templates as infra_templates
-from ooi.openstack import mixins
+from ooi.openstack import contextualization
 from ooi.openstack import templates
 
 
@@ -63,6 +65,11 @@ def index(self, req):
         l.append(compute.ComputeResource.kind)
         l.extend(compute.ComputeResource.actions)
 
+        # OCCI infra Storage
+        l.append(storage.StorageResource.kind)
+        l.append(storage_link.StorageLink.kind)
+        l.extend(storage.StorageResource.actions)
+
         # OCCI infra mixins
         l.append(infra_templates.os_tpl)
         l.append(infra_templates.resource_tpl)
@@ -71,7 +78,7 @@ def index(self, req):
         l.extend(self._resource_tpls(req))
         l.extend(self._os_tpls(req))
 
-        # OpenStack mixins (contextualization)
-        l.append(mixins.user_data)
-        l.append(mixins.public_key)
+        # OpenStack Contextualization
+        l.append(contextualization.user_data)
+        l.append(contextualization.public_key)
         return l

ooi/api/storage.py

@@ -0,0 +1,48 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2015 Spanish National Research Council
+#
+# 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.
+
+from ooi.api import base
+from ooi.occi.core import collection
+from ooi.occi.infrastructure import storage
+from ooi.openstack import helpers
+
+
+class Controller(base.Controller):
+    def index(self, req):
+        tenant_id = req.environ["keystone.token_auth"].user.project_id
+        req = self._get_req(req, path="/%s/os-volumes" % tenant_id)
+        response = req.get_response(self.app)
+        volumes = self.get_from_response(response, "volumes", [])
+        occi_storage_resources = []
+        if volumes:
+            for v in volumes:
+                s = storage.StorageResource(title=v["displayName"], id=v["id"])
+                occi_storage_resources.append(s)
+
+        return collection.Collection(resources=occi_storage_resources)
+
+    def show(self, id, req):
+        tenant_id = req.environ["keystone.token_auth"].user.project_id
+
+        # get info from server
+        req = self._get_req(req, path="/%s/os-volumes/%s" % (tenant_id, id))
+        response = req.get_response(self.app)
+        v = self.get_from_response(response, "volume", {})
+
+        state = helpers.vol_state(v["status"])
+        st = storage.StorageResource(title=v["displayName"], id=v["id"],
+                                     size=v["size"], state=state)
+        return [st]

ooi/exception.py

@@ -94,21 +94,14 @@ class NotImplemented(OCCIException):
     code = 501
 
 
-class HeaderNotFound(Invalid):
-    msg_fmt = "Header '%(header)s' not found."
+class OCCIInvalidSchema(Invalid):
+    msg_fmt = "Found invalid schema: '%(msg)s'."
 
 
-class HeaderValidation(Invalid):
-    """Parent class for header validation error exceptions."""
+class OCCIMissingType(Invalid):
+    msg_fmt = "Missing OCCI types: '%(type_id)s'."
 
 
-class OCCINoClassFound(HeaderValidation):
-    msg_fmt = "Found no headers matching class '%(class_id)s'."
-
-
-class OCCISchemaOccurrencesMismatch(HeaderValidation):
-    msg_fmt = "Schema occurrences do not match: '%(mismatched_schemas)s'."
-
-
-class OCCINotCompliantTerm(HeaderValidation):
-    msg_fmt = "Found a non-compliant term '%(term)s'."
+class OCCISchemaMismatch(Invalid):
+    msg_fmt = ("Schema does not match. Expecting '%(expected)s', "
+               "but found '%(found)s'.")

ooi/occi/core/link.py

@@ -33,8 +33,8 @@ class Link(entity.Entity):
     kind = kind.Kind(helpers.build_scheme("core"), 'link', 'link',
                      attributes, 'link/')
 
-    def __init__(self, title, mixins, source, target):
-        super(Link, self).__init__(title, mixins)
+    def __init__(self, title, mixins, source, target, id=None):
+        super(Link, self).__init__(title, mixins, id)
         self.attributes["occi.core.source"] = attribute.MutableAttribute(
             "occi.core.source", source)
         self.attributes["occi.core.target"] = attribute.MutableAttribute(

ooi/occi/helpers.py

@@ -20,8 +20,8 @@
 
 
 def build_scheme(category, prefix=_PREFIX):
-    category = "%s#" % category
-    return urlparse.urljoin(prefix, category)
+    scheme = urlparse.urljoin(prefix, category)
+    return '%s#' % scheme
 
 
 def check_type(obj_list, obj_type):
@@ -30,3 +30,8 @@ def check_type(obj_list, obj_type):
 
     if not all([isinstance(i, obj_type) for i in obj_list]):
         raise TypeError('object must be of class %s' % obj_type)
+
+
+def decompose_type(type_id):
+    scheme, term = type_id.split('#', 1)
+    return '%s#' % scheme, term