feature: JumpStart CuratedHub class creation and function definitions

src/sagemaker/jumpstart/cache.py

@@ -21,34 +21,38 @@
 import botocore
 from packaging.version import Version
 from packaging.specifiers import SpecifierSet, InvalidSpecifier
+from sagemaker.session import Session
+from sagemaker.utilities.cache import LRUCache
 from sagemaker.jumpstart.constants import (
     ENV_VARIABLE_JUMPSTART_MANIFEST_LOCAL_ROOT_DIR_OVERRIDE,
     ENV_VARIABLE_JUMPSTART_SPECS_LOCAL_ROOT_DIR_OVERRIDE,
     JUMPSTART_DEFAULT_MANIFEST_FILE_S3_KEY,
     JUMPSTART_DEFAULT_REGION_NAME,
     JUMPSTART_LOGGER,
     MODEL_ID_LIST_WEB_URL,
+    DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
 )
-from sagemaker.jumpstart.curated_hub.curated_hub import CuratedHub
-from sagemaker.jumpstart.curated_hub.utils import get_info_from_hub_resource_arn
 from sagemaker.jumpstart.exceptions import get_wildcard_model_version_msg
 from sagemaker.jumpstart.parameters import (
     JUMPSTART_DEFAULT_MAX_S3_CACHE_ITEMS,
     JUMPSTART_DEFAULT_MAX_SEMANTIC_VERSION_CACHE_ITEMS,
     JUMPSTART_DEFAULT_S3_CACHE_EXPIRATION_HORIZON,
     JUMPSTART_DEFAULT_SEMANTIC_VERSION_CACHE_EXPIRATION_HORIZON,
 )
+from sagemaker.jumpstart import utils
 from sagemaker.jumpstart.types import (
     JumpStartCachedContentKey,
     JumpStartCachedContentValue,
     JumpStartModelHeader,
     JumpStartModelSpecs,
     JumpStartS3FileType,
     JumpStartVersionedModelId,
+    DescribeHubResponse,
+    DescribeHubContentsResponse,
+    HubType,
     HubContentType,
 )
-from sagemaker.jumpstart import utils
-from sagemaker.utilities.cache import LRUCache
+from sagemaker.jumpstart.curated_hub import utils as hub_utils
 
 
 class JumpStartModelsCache:
@@ -74,6 +78,7 @@ def __init__(
         s3_bucket_name: Optional[str] = None,
         s3_client_config: Optional[botocore.config.Config] = None,
         s3_client: Optional[boto3.client] = None,
+        sagemaker_session: Optional[Session] = DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
     ) -> None:  # fmt: on
         """Initialize a ``JumpStartModelsCache`` instance.
 
@@ -95,6 +100,8 @@ def __init__(
             s3_client_config (Optional[botocore.config.Config]): s3 client config to use for cache.
                 Default: None (no config).
             s3_client (Optional[boto3.client]): s3 client to use. Default: None.
+            sagemaker_session (Optional[sagemaker.session.Session]): A SageMaker Session object,
+                used for SageMaker interactions. Default: Session in region associated with boto3 session.
         """
 
         self._region = region
@@ -121,6 +128,7 @@ def __init__(
             if s3_client_config
             else boto3.client("s3", region_name=self._region)
         )
+        self._sagemaker_session = sagemaker_session
 
     def set_region(self, region: str) -> None:
         """Set region for cache. Clears cache after new region is set."""
@@ -340,32 +348,34 @@ def _retrieval_function(
                 formatted_content=model_specs
             )
         if data_type == HubContentType.MODEL:
-            info = get_info_from_hub_resource_arn(
+            hub_name, _, model_name, model_version = hub_utils.get_info_from_hub_resource_arn(
                 id_info
             )
-            hub = CuratedHub(hub_name=info.hub_name, region=info.region)
-            hub_content = hub.describe_model(
-                model_name=info.hub_content_name, model_version=info.hub_content_version
+            hub_model_description: Dict[str, Any] = self._sagemaker_session.describe_hub_content(
+                hub_name=hub_name,
+                hub_content_name=model_name,
+                hub_content_version=model_version,
+                hub_content_type=data_type
             )
+
+            model_specs = JumpStartModelSpecs(DescribeHubContentsResponse(hub_model_description), is_hub_content=True)
+
             utils.emit_logs_based_on_model_specs(
-                hub_content.content_document,
+                model_specs,
                 self.get_region(),
                 self._s3_client
             )
-            model_specs = JumpStartModelSpecs(hub_content.content_document, is_hub_content=True)
             return JumpStartCachedContentValue(
                 formatted_content=model_specs
             )
-        if data_type == HubContentType.HUB:
-            info = get_info_from_hub_resource_arn(
-                id_info
-            )
-            hub = CuratedHub(hub_name=info.hub_name, region=info.region)
-            hub_info = hub.describe()
-            return JumpStartCachedContentValue(formatted_content=hub_info)
+        if data_type == HubType.HUB:
+            hub_name, _, _, _ = hub_utils.get_info_from_hub_resource_arn(id_info)
+            response: Dict[str, Any] = self._sagemaker_session.describe_hub(hub_name=hub_name)
+            hub_description = DescribeHubResponse(response)
+            return JumpStartCachedContentValue(formatted_content=DescribeHubResponse(hub_description))
         raise ValueError(
-            f"Bad value for key '{key}': must be in",
-            f"{[JumpStartS3FileType.MANIFEST, JumpStartS3FileType.SPECS, HubContentType.HUB, HubContentType.MODEL]}"
+            f"Bad value for key '{key}': must be in ",
+            f"{[JumpStartS3FileType.MANIFEST, JumpStartS3FileType.SPECS, HubType.HUB, HubContentType.MODEL]}"
         )
 
     def get_manifest(self) -> List[JumpStartModelHeader]:
@@ -490,7 +500,7 @@ def get_hub(self, hub_arn: str) -> Dict[str, Any]:
             hub_arn (str): Arn for the Hub to get info for
         """
 
-        details, _ = self._content_cache.get(JumpStartCachedContentKey(HubContentType.HUB, hub_arn))
+        details, _ = self._content_cache.get(JumpStartCachedContentKey(HubType.HUB, hub_arn))
         return details.formatted_content
 
     def clear(self) -> None:

src/sagemaker/jumpstart/curated_hub/curated_hub.py

@@ -13,10 +13,16 @@
 """This module provides the JumpStart Curated Hub class."""
 from __future__ import absolute_import
 
-from typing import Optional, Dict, Any
-from sagemaker.jumpstart.constants import DEFAULT_JUMPSTART_SAGEMAKER_SESSION
 
+from typing import Any, Dict, Optional
 from sagemaker.session import Session
+from sagemaker.jumpstart.constants import DEFAULT_JUMPSTART_SAGEMAKER_SESSION
+from sagemaker.jumpstart.types import (
+    DescribeHubResponse,
+    DescribeHubContentsResponse,
+    HubContentType,
+)
+from sagemaker.jumpstart.curated_hub.utils import create_hub_bucket_if_it_does_not_exist
 
 
 class CuratedHub:
@@ -25,30 +31,85 @@ class CuratedHub:
     def __init__(
         self,
         hub_name: str,
-        region: str,
-        session: Optional[Session] = DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
+        sagemaker_session: Optional[Session] = DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
     ):
+        """Instantiates a SageMaker ``CuratedHub``.
+
+        Args:
+            hub_name (str): The name of the Hub to create.
+            sagemaker_session (sagemaker.session.Session): A SageMaker Session
+                object, used for SageMaker interactions.
+        """
         self.hub_name = hub_name
-        self.region = region
-        self._sm_session = session
+        self.region = sagemaker_session.boto_region_name
+        self._sagemaker_session = sagemaker_session
 
-    def describe_model(self, model_name: str, model_version: str = "*") -> Dict[str, Any]:
-        """Returns descriptive information about the Hub Model"""
+    def create(
+        self,
+        description: str,
+        display_name: Optional[str] = None,
+        search_keywords: Optional[str] = None,
+        bucket_name: Optional[str] = None,
+        tags: Optional[str] = None,
+    ) -> Dict[str, str]:
+        """Creates a hub with the given description"""
 
-        hub_content = self._sm_session.describe_hub_content(
-            model_name, "Model", self.hub_name, model_version
+        bucket_name = create_hub_bucket_if_it_does_not_exist(bucket_name, self._sagemaker_session)
+
+        return self._sagemaker_session.create_hub(
+            hub_name=self.hub_name,
+            hub_description=description,
+            hub_display_name=display_name,
+            hub_search_keywords=search_keywords,
+            hub_bucket_name=bucket_name,
+            tags=tags,
         )
 
-        # TODO: Parse HubContent
-        # TODO: Parse HubContentDocument
+    def describe(self) -> DescribeHubResponse:
+        """Returns descriptive information about the Hub"""
 
-        return hub_content
+        hub_description: DescribeHubResponse = self._sagemaker_session.describe_hub(
+            hub_name=self.hub_name
+        )
 
-    def describe(self) -> Dict[str, Any]:
-        """Returns descriptive information about the Hub"""
+        return hub_description
 
-        hub_info = self._sm_session.describe_hub(hub_name=self.hub_name)
+    def list_models(self, **kwargs) -> Dict[str, Any]:
+        """Lists the models in this Curated Hub
 
-        # TODO: Validations?
+        **kwargs: Passed to invocation of ``Session:list_hub_contents``.
+        """
+        # TODO: Validate kwargs and fast-fail?
+
+        hub_content_summaries = self._sagemaker_session.list_hub_contents(
+            hub_name=self.hub_name, hub_content_type=HubContentType.MODEL, **kwargs
+        )
+        # TODO: Handle pagination
+        return hub_content_summaries
+
+    def describe_model(
+        self, model_name: str, model_version: str = "*"
+    ) -> DescribeHubContentsResponse:
+        """Returns descriptive information about the Hub Model"""
+
+        hub_content_description: Dict[str, Any] = self._sagemaker_session.describe_hub_content(
+            hub_name=self.hub_name,
+            hub_content_name=model_name,
+            hub_content_version=model_version,
+            hub_content_type=HubContentType.MODEL,
+        )
+
+        return DescribeHubContentsResponse(hub_content_description)
+
+    def delete_model(self, model_name: str, model_version: str = "*") -> None:
+        """Deletes a model from this CuratedHub."""
+        return self._sagemaker_session.delete_hub_content(
+            hub_content_name=model_name,
+            hub_content_version=model_version,
+            hub_content_type=HubContentType.MODEL,
+            hub_name=self.hub_name,
+        )
 
-        return hub_info
+    def delete(self) -> None:
+        """Deletes this Curated Hub"""
+        return self._sagemaker_session.delete_hub(self.hub_name)

src/sagemaker/jumpstart/curated_hub/utils.py

@@ -14,12 +14,13 @@
 from __future__ import absolute_import
 import re
 from typing import Optional
-from sagemaker.jumpstart import constants
-
-from sagemaker.jumpstart.curated_hub.types import HubArnExtractedInfo
-from sagemaker.jumpstart.types import HubContentType
 from sagemaker.session import Session
 from sagemaker.utils import aws_partition
+from sagemaker.jumpstart.types import (
+    HubContentType,
+    HubArnExtractedInfo,
+)
+from sagemaker.jumpstart import constants
 
 
 def get_info_from_hub_resource_arn(
@@ -109,3 +110,45 @@ def generate_hub_arn_for_init_kwargs(
         else:
             hub_arn = construct_hub_arn_from_name(hub_name=hub_name, region=region, session=session)
     return hub_arn
+
+
+def generate_default_hub_bucket_name(
+    sagemaker_session: Session = constants.DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
+) -> str:
+    """Return the name of the default bucket to use in relevant Amazon SageMaker Hub interactions.
+
+    Returns:
+        str: The name of the default bucket. If the name was not explicitly specified through
+            the Session or sagemaker_config, the bucket will take the form:
+            ``sagemaker-hubs-{region}-{AWS account ID}``.
+    """
+
+    region: str = sagemaker_session.boto_region_name
+    account_id: str = sagemaker_session.account_id()
+
+    # TODO: Validate and fast fail
+
+    return f"sagemaker-hubs-{region}-{account_id}"
+
+
+def create_hub_bucket_if_it_does_not_exist(
+    bucket_name: Optional[str] = None,
+    sagemaker_session: Session = constants.DEFAULT_JUMPSTART_SAGEMAKER_SESSION,
+) -> str:
+    """Creates the default SageMaker Hub bucket if it does not exist.
+
+    Returns:
+        str: The name of the default bucket. Takes the form:
+            ``sagemaker-hubs-{region}-{AWS account ID}``.
+    """
+
+    region: str = sagemaker_session.boto_region_name
+    if bucket_name is None:
+        bucket_name: str = generate_default_hub_bucket_name(sagemaker_session)
+
+    sagemaker_session._create_s3_bucket_if_it_does_not_exist(
+        bucket_name=bucket_name,
+        region=region,
+    )
+
+    return bucket_name

src/sagemaker/jumpstart/session_utils.py

@@ -15,11 +15,11 @@
 from __future__ import absolute_import
 
 from typing import Optional, Tuple
-from sagemaker.jumpstart.constants import DEFAULT_JUMPSTART_SAGEMAKER_SESSION
 
-from sagemaker.jumpstart.utils import get_jumpstart_model_id_version_from_resource_arn
 from sagemaker.session import Session
 from sagemaker.utils import aws_partition
+from sagemaker.jumpstart.constants import DEFAULT_JUMPSTART_SAGEMAKER_SESSION
+from sagemaker.jumpstart.utils import get_jumpstart_model_id_version_from_resource_arn
 
 
 def get_model_id_version_from_endpoint(