Add new Events API group

pkg/registry/events/event/doc.go

@@ -0,0 +1,17 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+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.
+*/
+
+package event // import "k8s.io/kubernetes/pkg/registry/events/event"

pkg/registry/events/event/strategy.go

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+/*
+Copyright 2017 The Kubernetes Authors.
+
+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.
+*/
+
+package event
+
+import (
+	"fmt"
+
+	"k8s.io/apimachinery/pkg/fields"
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/util/validation/field"
+	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
+	"k8s.io/apiserver/pkg/registry/generic"
+	apistorage "k8s.io/apiserver/pkg/storage"
+	"k8s.io/apiserver/pkg/storage/names"
+	"k8s.io/kubernetes/pkg/api/legacyscheme"
+	api "k8s.io/kubernetes/pkg/apis/core"
+	"k8s.io/kubernetes/pkg/apis/core/validation"
+)
+
+// eventStrategy implements verification logic for Pod Presets.
+type eventStrategy struct {
+	runtime.ObjectTyper
+	names.NameGenerator
+}
+
+// Strategy is the default logic that applies when creating and updating Pod Preset objects.
+var Strategy = eventStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
+
+// NamespaceScoped returns true because all Events need to be within a namespace.
+func (eventStrategy) NamespaceScoped() bool {
+	return true
+}
+
+// PrepareForCreate clears the status of a Pod Preset before creation.
+func (eventStrategy) PrepareForCreate(ctx genericapirequest.Context, obj runtime.Object) {
+}
+
+// PrepareForUpdate clears fields that are not allowed to be set by end users on update.
+func (eventStrategy) PrepareForUpdate(ctx genericapirequest.Context, obj, old runtime.Object) {
+}
+
+// Validate validates a new Event.
+func (eventStrategy) Validate(ctx genericapirequest.Context, obj runtime.Object) field.ErrorList {
+	event := obj.(*api.Event)
+	return validation.ValidateEvent(event)
+}
+
+// Canonicalize normalizes the object after validation.
+// AllowCreateOnUpdate is false for Event; this means POST is needed to create one.
+func (eventStrategy) AllowCreateOnUpdate() bool {
+	return false
+}
+
+func (eventStrategy) Canonicalize(obj runtime.Object) {}
+
+// ValidateUpdate is the default update validation for an end user.
+func (eventStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime.Object) field.ErrorList {
+	event := obj.(*api.Event)
+	return validation.ValidateEvent(event)
+}
+
+// AllowUnconditionalUpdate is the default update policy for Event objects.
+func (eventStrategy) AllowUnconditionalUpdate() bool {
+	return true
+}
+
+// SelectableFields returns a field set that represents the object.
+func SelectableFields(pip *api.Event) fields.Set {
+	return generic.ObjectMetaFieldsSet(&pip.ObjectMeta, true)
+}
+
+// GetAttrs returns labels and fields of a given object for filtering purposes.
+func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, bool, error) {
+	pip, ok := obj.(*api.Event)
+	if !ok {
+		return nil, nil, false, fmt.Errorf("given object is not a Event")
+	}
+	return labels.Set(pip.ObjectMeta.Labels), SelectableFields(pip), pip.Initializers != nil, nil
+}
+
+// Matcher is the filter used by the generic etcd backend to watch events
+// from etcd to clients of the apiserver only interested in specific labels/fields.
+func Matcher(label labels.Selector, field fields.Selector) apistorage.SelectionPredicate {
+	return apistorage.SelectionPredicate{
+		Label:    label,
+		Field:    field,
+		GetAttrs: GetAttrs,
+	}
+}