Finish content serializer and add one for artifact

closes #2299
https://pulp.plan.io/issues/2299

app/pulp/app/serializers/__init__.py

@@ -3,10 +3,11 @@
 # - all can import directly from base and fields if needed
 from pulp.app.serializers.base import (DetailRelatedField, GenericKeyValueRelatedField,  # NOQA
     ModelSerializer, MasterModelSerializer, viewset_for_model)  # NOQA
-from pulp.app.serializers.fields import RepositoryNestedIdentityField, RepositoryRelatedField  # NOQA
+from pulp.app.serializers.fields import (ContentRelatedField, RepositoryNestedIdentityField,  # NOQA
+    RepositoryRelatedField)  # NOQA
 from pulp.app.serializers.generic import (ConfigKeyValueRelatedField,  # NOQA
     NotesKeyValueRelatedField)  # NOQA
-from pulp.app.serializers.content import ContentSerializer, ContentRelatedField  # NOQA
 from pulp.app.serializers.consumer import ConsumerSerializer  # NOQA
+from pulp.app.serializers.content import ContentSerializer, ArtifactSerializer  # NOQA
 from pulp.app.serializers.repository import ImporterSerializer, RepositorySerializer  # NOQA
 from pulp.app.serializers.task import TaskSerializer, WorkerSerializer  # NOQA

app/pulp/app/serializers/content.py

@@ -1,18 +1,90 @@
+from rest_framework import serializers
+
 from pulp.app import models
-from pulp.app.serializers import base, fields
+from pulp.app.serializers import base, fields, generic
 
 
 class ContentSerializer(base.MasterModelSerializer):
     _href = base.DetailIdentityField()
     repositories = fields.RepositoryRelatedField(many=True)
+    notes = generic.NotesKeyValueRelatedField()
+    artifacts = serializers.HyperlinkedRelatedField(
+        help_text="The associated files.",
+        many=True,
+        read_only=True,
+        view_name='artifacts-detail'
+    )
 
     class Meta:
         model = models.Content
-        fields = base.MasterModelSerializer.Meta.fields + ('repositories',)
+        fields = base.MasterModelSerializer.Meta.fields + ('repositories', 'notes', 'artifacts')
+
+
+class ArtifactSerializer(base.ModelSerializer):
+    file = serializers.FileField(
+        help_text="The stored file.",
+        read_only=True
+    )
+
+    downloaded = serializers.BooleanField(
+        help_text="An indication that the associated file has been downloaded.",
+        read_only=True
+    )
+
+    requested = serializers.BooleanField(
+        help_text="An indication that the associated file has been requested by a client.",
+        read_only=True
+    )
+
+    relative_path = serializers.CharField(
+        help_text="The relative path of the artifact which is incorporated into the storage and"
+                  " published paths.",
+        read_only=True
+    )
+
+    size = serializers.IntegerField(
+        help_text="The size of the file in bytes.",
+        read_only=True
+    )
 
+    md5 = serializers.CharField(
+        help_text="The MD5 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
 
-class ContentRelatedField(base.DetailRelatedField):
-    """
-    Serializer Field for use when relating to Content Detail Models
-    """
-    queryset = models.Content.objects.all()
+    sha1 = serializers.CharField(
+        help_text="The SHA-1 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
+
+    sha224 = serializers.CharField(
+        help_text="The SHA-224 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
+
+    sha256 = serializers.CharField(
+        help_text="The SHA-256 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
+
+    sha384 = serializers.CharField(
+        help_text="The SHA-384 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
+
+    sha512 = serializers.CharField(
+        help_text="The SHA-512 checksum of the file if available.",
+        read_only=True,
+        required=False
+    )
+
+    class Meta:
+        model = models.Artifact
+        fields = base.ModelSerializer.Meta.fields + ('file', 'downloaded', 'requested',
+                                                     'relative_path', 'size', 'md5', 'sha1',
+                                                     'sha224', 'sha256', 'sha384', 'sha512')

app/pulp/app/serializers/fields.py

@@ -2,6 +2,14 @@
 from rest_framework.reverse import reverse
 
 from pulp.app import models
+from pulp.app.serializers import DetailRelatedField
+
+
+class ContentRelatedField(DetailRelatedField):
+    """
+    Serializer Field for use when relating to Content Detail Models
+    """
+    queryset = models.Content.objects.all()
 
 
 class RepositoryRelatedField(serializers.HyperlinkedRelatedField):