feat: add primitive

CONTRIBUTING.md

@@ -1,3 +1,9 @@
 # How about contributing to Vanus
 
-TODO
+## Guides
+
+### CLA 
+You must sign the Contributor License Agreement(TODO) in order to contribute.
+
+### TODO
+

internal/primitive/subscription.go

@@ -0,0 +1,65 @@
+// Copyright 2022 Linkall Inc.
+//
+// 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 primitive
+
+type URI string
+
+type Subscription struct {
+	ID               string              `json:"id"`
+	Source           string              `json:"source"`
+	Types            []string            `json:"types"`
+	Config           map[string]string   `json:"config"`
+	Filters          []map[string]string `json:"filters"`
+	Sink             URI                 `json:"sink"`
+	Protocol         string              `json:"protocol"`
+	ProtocolSettings map[string]string   `json:"protocolsettings"`
+}
+
+type SinkSpec struct {
+	Type   string
+	Name   string // TODO use id or name? ID used in CloudEvents Specification
+	Weight float32
+	Config map[string]interface{}
+}
+
+type DialectType string
+
+const (
+	ExactDialect  = "exact"
+	PrefixDialect = "prefix"
+	SuffixDialect = "suffix"
+	AllDialect    = "all"
+	AnyDialect    = "any"
+	NotDialect    = "not"
+	SQLDialect    = "ce-sql"
+)
+
+type FilterSpec struct {
+	Name    string
+	Exp     interface{}
+	ApplyTo []string
+	Target  TargetSpec
+}
+
+type SubscriptionSpec struct {
+	EventBuses []string
+	Sinks      []SinkSpec
+	Filters    []FilterSpec
+}
+
+type TargetSpec struct {
+	LBStrategy string
+	Sinks      []string
+}

internal/primitive/trigger.go

@@ -0,0 +1,34 @@
+// Copyright 2022 Linkall Inc.
+//
+// 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 primitive
+
+type TriggerState string
+
+const (
+	TriggerCreated   = "created"
+	TriggerPending   = "pending"
+	TriggerRunning   = "running"
+	TriggerSleep     = "sleep"
+	TriggerPaused    = "paused"
+	TriggerStopped   = "stopped"
+	TriggerDestroyed = "destroyed"
+)
+
+type Trigger struct {
+	ID             string       `json:"id"`
+	SubscriptionID string       `json:"subscription_id"`
+	State          TriggerState `json:"state"`
+	// other fields will be added in coding
+}