Introduce higer-level API for retrieving statistics

- see stats-api example

Change-Id: I11d29d32b60d25238e75cb6b86ee34842348ab38
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

1 files changed, 0 insertions, 139 deletions

diff --git a/api/api.go b/api/api.go
deleted file mode 100644
index ac9f8a4..0000000
--- a/api/api.go
+++ /dev/null
@@ -1,139 +0,0 @@
-// Copyright (c) 2017 Cisco and/or its affiliates.
-//
-// 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 api
-
-import (
-	"time"
-)
-
-// MessageType represents the type of a VPP message.
-// Note: this is currently derived from the message header (fields),
-// and in many cases it does not represent the actual type of VPP message.
-// This means that some replies can be identified as requests, etc.
-// TODO: use services to identify type of message
-type MessageType int
-
-const (
-	// RequestMessage represents a VPP request message
-	RequestMessage MessageType = iota
-	// ReplyMessage represents a VPP reply message
-	ReplyMessage
-	// EventMessage represents a VPP event message
-	EventMessage
-	// OtherMessage represents other VPP message
-	OtherMessage
-)
-
-// Message is an interface that is implemented by all VPP Binary API messages generated by the binapigenerator.
-type Message interface {
-	// GetMessageName returns the original VPP name of the message, as defined in the VPP API.
-	GetMessageName() string
-
-	// GetCrcString returns the string with CRC checksum of the message definition (the string represents a hexadecimal number).
-	GetCrcString() string
-
-	// GetMessageType returns the type of the VPP message.
-	GetMessageType() MessageType
-}
-
-// DataType is an interface that is implemented by all VPP Binary API data types by the binapi_generator.
-type DataType interface {
-	// GetTypeName returns the original VPP name of the data type, as defined in the VPP API.
-	GetTypeName() string
-
-	// GetCrcString returns the string with CRC checksum of the data type definition (the string represents a hexadecimal number).
-	GetCrcString() string
-}
-
-// ChannelProvider provides the communication channel with govpp core.
-type ChannelProvider interface {
-	// NewAPIChannel returns a new channel for communication with VPP via govpp core.
-	// It uses default buffer sizes for the request and reply Go channels.
-	NewAPIChannel() (Channel, error)
-
-	// NewAPIChannelBuffered returns a new channel for communication with VPP via govpp core.
-	// It allows to specify custom buffer sizes for the request and reply Go channels.
-	NewAPIChannelBuffered(reqChanBufSize, replyChanBufSize int) (Channel, error)
-}
-
-// Channel provides methods for direct communication with VPP channel.
-type Channel interface {
-	// SendRequest asynchronously sends a request to VPP. Returns a request context, that can be used to call ReceiveReply.
-	// In case of any errors by sending, the error will be delivered to ReplyChan (and returned by ReceiveReply).
-	SendRequest(msg Message) RequestCtx
-
-	// SendMultiRequest asynchronously sends a multipart request (request to which multiple responses are expected) to VPP.
-	// Returns a multipart request context, that can be used to call ReceiveReply.
-	// In case of any errors by sending, the error will be delivered to ReplyChan (and returned by ReceiveReply).
-	SendMultiRequest(msg Message) MultiRequestCtx
-
-	// SubscribeNotification subscribes for receiving of the specified notification messages via provided Go channel.
-	// Note that the caller is responsible for creating the Go channel with preferred buffer size. If the channel's
-	// buffer is full, the notifications will not be delivered into it.
-	SubscribeNotification(notifChan chan Message, event Message) (SubscriptionCtx, error)
-
-	// SetReplyTimeout sets the timeout for replies from VPP. It represents the maximum time the API waits for a reply
-	// from VPP before returning an error.
-	SetReplyTimeout(timeout time.Duration)
-
-	// CheckCompatibility checks the compatiblity for the given messages.
-	// It will return an error if any of the given messages are not compatible.
-	CheckCompatiblity(msgs ...Message) error
-
-	// Close closes the API channel and releases all API channel-related resources in the ChannelProvider.
-	Close()
-}
-
-// RequestCtx is helper interface which allows to receive reply on request.
-type RequestCtx interface {
-	// ReceiveReply receives a reply from VPP (blocks until a reply is delivered from VPP, or until an error occurs).
-	// The reply will be decoded into the msg argument. Error will be returned if the response cannot be received or decoded.
-	ReceiveReply(msg Message) error
-}
-
-// MultiRequestCtx is helper interface which allows to receive reply on multi-request.
-type MultiRequestCtx interface {
-	// ReceiveReply receives a reply from VPP (blocks until a reply is delivered from VPP, or until an error occurs).
-	// The reply will be decoded into the msg argument. If the last reply has been already consumed, lastReplyReceived is
-	// set to true. Do not use the message itself if lastReplyReceived is true - it won't be filled with actual data.
-	// Error will be returned if the response cannot be received or decoded.
-	ReceiveReply(msg Message) (lastReplyReceived bool, err error)
-}
-
-// SubscriptionCtx is helper interface which allows to control subscription for notification events.
-type SubscriptionCtx interface {
-	// Unsubscribe unsubscribes from receiving the notifications tied to the subscription context.
-	Unsubscribe() error
-}
-
-var registeredMessages = make(map[string]Message)
-
-// RegisterMessage is called from generated code to register message.
-func RegisterMessage(x Message, name string) {
-	name = x.GetMessageName() + "_" + x.GetCrcString()
-	/*if _, ok := registeredMessages[name]; ok {
-		panic(fmt.Errorf("govpp: duplicate message registered: %s (%s)", name, x.GetCrcString()))
-	}*/
-	registeredMessages[name] = x
-}
-
-// GetRegisteredMessages returns list of all registered messages.
-func GetRegisteredMessages() map[string]Message {
-	return registeredMessages
-}
-
-// GoVppAPIPackageIsVersion1 is referenced from generated binapi files
-// to assert that that code is compatible with this version of the GoVPP api package.
-const GoVppAPIPackageIsVersion1 = true