use validations from interfaces

openpype/pipeline/create/context.py

@@ -6,6 +6,7 @@ import inspect
 from uuid import uuid4
 from contextlib import contextmanager
 
+from openpype.host import INewPublisher
 from openpype.pipeline import legacy_io
 from openpype.pipeline.mongodb import (
     AvalonMongoDB,
@@ -651,12 +652,6 @@ class CreateContext:
         discover_publish_plugins(bool): Discover publish plugins during reset
             phase.
     """
-    # Methods required in host implementaion to be able create instances
-    #   or change context data.
-    required_methods = (
-        "get_context_data",
-        "update_context_data"
-    )
 
     def __init__(
         self, host, dbcon=None, headless=False, reset=True,
@@ -738,10 +733,10 @@ class CreateContext:
         Args:
             host(ModuleType): Host implementaion.
         """
-        missing = set()
+
-        for attr_name in cls.required_methods:
+        missing = set(
-            if not hasattr(host, attr_name):
+            INewPublisher.get_missing_publish_methods(host)
-                missing.add(attr_name)
+        )
         return missing
 
     @property

openpype/tools/utils/host_tools.py

@@ -6,7 +6,7 @@ use singleton approach with global functions (using helper anyway).
 import os
 
 import pyblish.api
-
+from openpype.host import IWorkfileHost, ILoadHost
 from openpype.pipeline import (
     registered_host,
     legacy_io,
@@ -49,12 +49,11 @@ class HostToolsHelper:
     def get_workfiles_tool(self, parent):
         """Create, cache and return workfiles tool window."""
         if self._workfiles_tool is None:
-            from openpype.tools.workfiles.app import (
+            from openpype.tools.workfiles.app import Window
-                Window, validate_host_requirements
+
-            )
             # Host validation
             host = registered_host()
-            validate_host_requirements(host)
+            IWorkfileHost.validate_workfile_methods(host)
 
             workfiles_window = Window(parent=parent)
             self._workfiles_tool = workfiles_window
@@ -92,6 +91,9 @@ class HostToolsHelper:
         if self._loader_tool is None:
             from openpype.tools.loader import LoaderWindow
 
+            host = registered_host()
+            ILoadHost.validate_load_methods(host)
+
             loader_window = LoaderWindow(parent=parent or self._parent)
             self._loader_tool = loader_window
 
@@ -164,6 +166,9 @@ class HostToolsHelper:
         if self._scene_inventory_tool is None:
             from openpype.tools.sceneinventory import SceneInventoryWindow
 
+            host = registered_host()
+            ILoadHost.validate_load_methods(host)
+
             scene_inventory_window = SceneInventoryWindow(
                 parent=parent or self._parent
             )

openpype/tools/workfiles/__init__.py

@@ -1,12 +1,10 @@
 from .window import Window
 from .app import (
     show,
-    validate_host_requirements,
 )
 
 __all__ = [
     "Window",
 
     "show",
-    "validate_host_requirements",
 ]

openpype/tools/workfiles/app.py

@@ -1,6 +1,7 @@
 import sys
 import logging
 
+from openpype.host import IWorkfileHost
 from openpype.pipeline import (
     registered_host,
     legacy_io,
@@ -14,31 +15,6 @@ module = sys.modules[__name__]
 module.window = None
 
 
-def validate_host_requirements(host):
-    if host is None:
-        raise RuntimeError("No registered host.")
-
-    # Verify the host has implemented the api for Work Files
-    required = [
-        "open_file",
-        "save_file",
-        "current_file",
-        "has_unsaved_changes",
-        "work_root",
-        "file_extensions",
-    ]
-    missing = []
-    for name in required:
-        if not hasattr(host, name):
-            missing.append(name)
-    if missing:
-        raise RuntimeError(
-            "Host is missing required Work Files interfaces: "
-            "%s (host: %s)" % (", ".join(missing), host)
-        )
-    return True
-
-
 def show(root=None, debug=False, parent=None, use_context=True, save=True):
     """Show Work Files GUI"""
     # todo: remove `root` argument to show()
@@ -50,7 +26,7 @@ def show(root=None, debug=False, parent=None, use_context=True, save=True):
         pass
 
     host = registered_host()
-    validate_host_requirements(host)
+    IWorkfileHost.validate_workfile_methods(host)
 
     if debug:
         legacy_io.Session["AVALON_ASSET"] = "Mock"