Initial QSfera import

Server/vendor/github.com/open-policy-agent/opa/storage/interface.go

@@ -0,0 +1,89 @@
+// Copyright 2016 The OPA Authors.  All rights reserved.
+// Use of this source code is governed by an Apache2
+// license that can be found in the LICENSE file.
+
+package storage
+
+import (
+	v1 "github.com/open-policy-agent/opa/v1/storage"
+)
+
+// Transaction defines the interface that identifies a consistent snapshot over
+// the policy engine's storage layer.
+type Transaction = v1.Transaction
+
+// Store defines the interface for the storage layer's backend.
+type Store = v1.Store
+
+// MakeDirer defines the interface a Store could realize to override the
+// generic MakeDir functionality in storage.MakeDir
+type MakeDirer = v1.MakeDirer
+
+// NonEmptyer allows a store implemention to override NonEmpty())
+type NonEmptyer = v1.NonEmptyer
+
+// TransactionParams describes a new transaction.
+type TransactionParams = v1.TransactionParams
+
+// Context is a simple container for key/value pairs.
+type Context = v1.Context
+
+// NewContext returns a new context object.
+func NewContext() *Context {
+	return v1.NewContext()
+}
+
+// WriteParams specifies the TransactionParams for a write transaction.
+var WriteParams = v1.WriteParams
+
+// PatchOp is the enumeration of supposed modifications.
+type PatchOp = v1.PatchOp
+
+// Patch supports add, remove, and replace operations.
+const (
+	AddOp     = v1.AddOp
+	RemoveOp  = v1.RemoveOp
+	ReplaceOp = v1.ReplaceOp
+)
+
+// WritesNotSupported provides a default implementation of the write
+// interface which may be used if the backend does not support writes.
+type WritesNotSupported = v1.WritesNotSupported
+
+// Policy defines the interface for policy module storage.
+type Policy = v1.Policy
+
+// PolicyNotSupported provides a default implementation of the policy interface
+// which may be used if the backend does not support policy storage.
+type PolicyNotSupported = v1.PolicyNotSupported
+
+// PolicyEvent describes a change to a policy.
+type PolicyEvent = v1.PolicyEvent
+
+// DataEvent describes a change to a base data document.
+type DataEvent = v1.DataEvent
+
+// TriggerEvent describes the changes that caused the trigger to be invoked.
+type TriggerEvent = v1.TriggerEvent
+
+// TriggerConfig contains the trigger registration configuration.
+type TriggerConfig = v1.TriggerConfig
+
+// Trigger defines the interface that stores implement to register for change
+// notifications when the store is changed.
+type Trigger = v1.Trigger
+
+// TriggersNotSupported provides default implementations of the Trigger
+// interface which may be used if the backend does not support triggers.
+type TriggersNotSupported = v1.TriggersNotSupported
+
+// TriggerHandle defines the interface that can be used to unregister triggers that have
+// been registered on a Store.
+type TriggerHandle = v1.TriggerHandle
+
+// Iterator defines the interface that can be used to read files from a directory starting with
+// files at the base of the directory, then sub-directories etc.
+type Iterator = v1.Iterator
+
+// Update contains information about a file
+type Update = v1.Update