[z3-checkins] r13864 - z3/pipelines/trunk

[ivo at codespeak.net]

Author: ivo
Date: Sat Jun 25 17:04:41 2005
New Revision: 13864

Added:
   z3/pipelines/trunk/meta.zcml
   z3/pipelines/trunk/metaconfigure.py
   z3/pipelines/trunk/metadirectives.py
Log:
configuration directives implemented

Added: z3/pipelines/trunk/meta.zcml
==============================================================================
--- (empty file)
+++ z3/pipelines/trunk/meta.zcml	Sat Jun 25 17:04:41 2005
@@ -0,0 +1,18 @@
+<configure xmlns:meta="http://namespaces.zope.org/meta">
+  <meta:directives namespace="http://namespaces.zope.org/pipeline">
+    <meta:complexDirective
+        name="pipeline"
+        schema=".metadirectives.IPipelineDirective"
+        handler=".metaconfigure.pipeline">
+
+      <meta:subdirective
+          name="filter"
+          schema=".metadirectives.IFilterSubdirective" />
+
+
+    </meta:complexDirective>
+  </meta:directives>
+</configure>
+
+  
+

Added: z3/pipelines/trunk/metaconfigure.py
==============================================================================
--- (empty file)
+++ z3/pipelines/trunk/metaconfigure.py	Sat Jun 25 17:04:41 2005
@@ -0,0 +1,24 @@
+from zope.app.component.metaconfigure import utility
+from pipelines.interface import IPipeline
+from pipelines.pipeline import Pipeline
+
+class pipeline(object):
+    def __init__(self, _context, for_):
+        self.for_ = for_
+        self.filters = []
+
+    def filter(self, _context, id):
+        self.filters.append(filter(_context, id))
+
+    def __call__(self):
+        pipe = Pipeline(self.filters)
+        ## register the pipeline somewhere
+
+def filter(_context, id, component=None, factory=None):
+    if factory:
+        if component:
+            raise TypeError("Can't specify factory and component.")
+        component = factory()
+    return component
+
+

Added: z3/pipelines/trunk/metadirectives.py
==============================================================================
--- (empty file)
+++ z3/pipelines/trunk/metadirectives.py	Sat Jun 25 17:04:41 2005
@@ -0,0 +1,38 @@
+from zope.app.interface import Interface
+from zope.configuration.fields import Tokens, GlobalObject
+from zope.schema import Id
+from zope.app.i18n import ZopeMessageIDFactory as _
+
+class IPipelineDirective(Interface):
+    for_ = Tokens(
+        title=_("Interfaces or classes that this subscriber depends on"),
+        description=_("This should be a list of interfaces or classes"),
+        required=False,
+        value_type=GlobalObject(
+          missing_value = object(),
+          ),
+        )
+
+class IFilterSubdirective(Interface):
+    id = Id(
+        title=_("ID"),
+        required=False,
+        )
+    component = GlobalObject(
+        title=_("Component to use"),
+        description=_("Python name of the implementation object.  This"
+                      " must identify an object in a module using the"
+                      " full dotted name.  If specified, the"
+                      " ``factory`` field must be left blank."),
+        required=False,
+        )
+    
+    factory = GlobalObject(
+        title=_("Factory"),
+        description=_("Python name of a factory which can create the"
+                      " implementation object.  This must identify an"
+                      " object in a module using the full dotted name."
+                      " If specified, the ``component`` field must"
+                      " be left blank."),
+        required=False,
+        )