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Integrate public as bindata optionally (#293)

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* Dropped unused codekit config

* Integrated dynamic and static bindata for public

* Ignore public bindata

* Add a general generate make task

* Integrated flexible public assets into web command

* Updated vendoring, added all missiong govendor deps

* Made the linter happy with the bindata and dynamic code

* Moved public bindata definition to modules directory

* Ignoring the new bindata path now

* Updated to the new public modules import path

* Updated public bindata command and drop the new prefix
This commit is contained in:
Thomas Boerger 2016-11-29 17:26:36 +01:00 • committed by Lunny Xiao
parent 4680c349dd
commit b6a95a8cb3
691 changed files with 305318 additions and 1272 deletions
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243
vendor/github.com/ngaut/tso/client/client.go generated vendored Normal file
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package client
import (
"container/list"
"time"
"github.com/juju/errors"
"github.com/ngaut/log"
"github.com/ngaut/tso/proto"
"github.com/ngaut/tso/util"
"github.com/ngaut/zkhelper"
)
const (
maxPipelineRequest = 100000
)
// Client is a timestamp oracle client.
type Client struct {
requests chan *PipelineRequest
pending *list.List
conf *Conf
addr string
leaderCh chan string
}
// Conf is the configuration.
type Conf struct {
// tso server address, it will be deprecated later.
ServerAddr string
// ZKAddr is for zookeeper address, if set, client will ignore ServerAddr
// and find the leader tso server address in zookeeper.
// Later ServerAddr is just for simple test and backward compatibility.
ZKAddr string
// root path is the tso server saving in zookeeper, like /zk/tso.
RootPath string
}
// PipelineRequest let you get the timestamp with pipeline.
type PipelineRequest struct {
done chan error
reply *proto.Response
}
func newPipelineRequest() *PipelineRequest {
return &PipelineRequest{
done: make(chan error, 1),
}
}
// MarkDone sets the repsone for current request.
func (pr *PipelineRequest) MarkDone(reply *proto.Response, err error) {
if err != nil {
pr.reply = nil
}
pr.reply = reply
pr.done <- errors.Trace(err)
}
// GetTS gets the timestamp.
func (pr *PipelineRequest) GetTS() (*proto.Timestamp, error) {
err := <-pr.done
if err != nil {
return nil, errors.Trace(err)
}
return &pr.reply.Timestamp, nil
}
// NewClient creates a timestamp oracle client.
func NewClient(conf *Conf) *Client {
c := &Client{
requests: make(chan *PipelineRequest, maxPipelineRequest),
pending: list.New(),
conf: conf,
leaderCh: make(chan string, 1),
}
if len(conf.ZKAddr) == 0 {
c.leaderCh <- conf.ServerAddr
} else {
go c.watchLeader()
}
go c.workerLoop()
return c
}
func (c *Client) cleanupPending(err error) {
log.Warn(err)
length := c.pending.Len()
for i := 0; i < length; i++ {
e := c.pending.Front()
c.pending.Remove(e)
e.Value.(*PipelineRequest).MarkDone(nil, err)
}
// clear request in channel too
length = len(c.requests)
for i := 0; i < length; i++ {
req := <-c.requests
req.MarkDone(nil, err)
}
}
func (c *Client) notifyOne(reply *proto.Response) {
e := c.pending.Front()
c.pending.Remove(e)
req := e.Value.(*PipelineRequest)
req.MarkDone(reply, nil)
}
func (c *Client) writeRequests(session *Conn) error {
var protoHdr [1]byte
for i := 0; i < c.pending.Len(); i++ {
session.Write(protoHdr[:])
}
return session.Flush()
}
func (c *Client) handleResponse(session *Conn) error {
length := c.pending.Len()
for i := 0; i < length; i++ {
var resp proto.Response
err := resp.Decode(session)
if err != nil {
return errors.Trace(err)
}
c.notifyOne(&resp)
}
return nil
}
func (c *Client) do() error {
session, err := NewConnection(c.addr, time.Duration(1*time.Second))
if err != nil {
return errors.Trace(err)
}
log.Debugf("connect tso server %s ok", c.addr)
defer session.Close()
for {
select {
case req := <-c.requests:
c.pending.PushBack(req)
length := len(c.requests)
for i := 0; i < length; i++ {
req = <-c.requests
c.pending.PushBack(req)
}
err = c.writeRequests(session)
if err != nil {
return errors.Trace(err)
}
err = c.handleResponse(session)
if err != nil {
return errors.Trace(err)
}
case addr := <-c.leaderCh:
oldAddr := c.addr
c.addr = addr
return errors.Errorf("leader change %s -> %s", oldAddr, addr)
}
}
}
func (c *Client) workerLoop() {
// first get tso leader
c.addr = <-c.leaderCh
log.Debugf("try to connect tso server %s", c.addr)
for {
err := c.do()
if err != nil {
c.cleanupPending(err)
}
select {
case <-time.After(1 * time.Second):
case addr := <-c.leaderCh:
// If old tso server down, NewConnection will fail and return immediately in do function,
// so we must check leader change here.
log.Warnf("leader change %s -> %s", c.addr, addr)
c.addr = addr
// Wait some time to let tso server allow accepting connections.
time.Sleep(1 * time.Second)
}
}
}
func (c *Client) watchLeader() {
var (
conn zkhelper.Conn
err error
)
for {
conn, err = zkhelper.ConnectToZkWithTimeout(c.conf.ZKAddr, time.Second)
if err != nil {
log.Errorf("connect zk err %v, retry later", err)
time.Sleep(3 * time.Second)
continue
}
break
}
defer conn.Close()
var lastAddr string
for {
addr, watcher, err := util.GetWatchLeader(conn, c.conf.RootPath)
if err != nil {
log.Errorf("get tso leader err %v, retry later", err)
time.Sleep(3 * time.Second)
continue
}
if lastAddr != addr {
log.Warnf("leader change %s -> %s", lastAddr, addr)
lastAddr = addr
c.leaderCh <- addr
}
// watch the leader changes.
<-watcher
}
}
// GoGetTimestamp returns a PipelineRequest so you can get the timestamp later.
func (c *Client) GoGetTimestamp() *PipelineRequest {
pr := newPipelineRequest()
c.requests <- pr
return pr
}

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package client
import (
"bufio"
"net"
"time"
"github.com/ngaut/deadline"
)
// Conn is the connection for timestamp oracle server, it is not thread safe.
type Conn struct {
addr string
net.Conn
closed bool
r *bufio.Reader
w *bufio.Writer
netTimeout time.Duration
}
// NewConnection creates a conn.
func NewConnection(addr string, netTimeout time.Duration) (*Conn, error) {
conn, err := net.DialTimeout("tcp", addr, netTimeout)
if err != nil {
return nil, err
}
return &Conn{
addr: addr,
Conn: conn,
r: bufio.NewReaderSize(deadline.NewDeadlineReader(conn, netTimeout), 512*1024),
w: bufio.NewWriterSize(deadline.NewDeadlineWriter(conn, netTimeout), 512*1024),
netTimeout: netTimeout,
}, nil
}
// Read reads data and stores it into p.
func (c *Conn) Read(p []byte) (int, error) {
return c.r.Read(p)
}
// Flush flushs buffered data.
func (c *Conn) Flush() error {
return c.w.Flush()
}
// Write writes p.
func (c *Conn) Write(p []byte) (int, error) {
return c.w.Write(p)
}

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package proto
import (
"encoding/binary"
"io"
"github.com/juju/errors"
)
// RequestHeader is for tso request proto.
type RequestHeader struct {
}
// Timestamp is for tso timestamp.
type Timestamp struct {
Physical int64
Logical int64
}
// Response is for tso reponse proto.
type Response struct {
Timestamp
}
// Encode encodes repsonse proto into w.
func (res *Response) Encode(w io.Writer) error {
var buf [16]byte
binary.BigEndian.PutUint64(buf[0:8], uint64(res.Physical))
binary.BigEndian.PutUint64(buf[8:16], uint64(res.Logical))
_, err := w.Write(buf[0:16])
return errors.Trace(err)
}
// Decode decodes reponse proto from r.
func (res *Response) Decode(r io.Reader) error {
var buf [16]byte
_, err := io.ReadFull(r, buf[0:16])
if err != nil {
return errors.Trace(err)
}
res.Physical = int64(binary.BigEndian.Uint64(buf[0:8]))
res.Logical = int64(binary.BigEndian.Uint64(buf[8:16]))
return nil
}

81
vendor/github.com/ngaut/tso/util/util.go generated vendored Normal file
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// Copyright 2015 PingCAP, 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package util
import (
"encoding/json"
"path"
"github.com/juju/errors"
"github.com/ngaut/go-zookeeper/zk"
"github.com/ngaut/zkhelper"
)
func getLeader(data []byte) (string, error) {
m := struct {
Addr string `json:"Addr"`
}{}
err := json.Unmarshal(data, &m)
if err != nil {
return "", errors.Trace(err)
}
return m.Addr, nil
}
// getLeaderPath gets the leader path in zookeeper.
func getLeaderPath(rootPath string) string {
return path.Join(rootPath, "leader")
}
// func checkLeaderExists(conn zkhelper.Conn) error {
// // the leader node is not ephemeral, so we may meet no any tso server but leader node
// // has the data for last closed tso server.
// // TODO: check children in /candidates, if no child, we will treat it as no leader too.
// return nil
// }
// GetLeaderAddr gets the leader tso address in zookeeper for outer use.
func GetLeader(conn zkhelper.Conn, rootPath string) (string, error) {
data, _, err := conn.Get(getLeaderPath(rootPath))
if err != nil {
return "", errors.Trace(err)
}
// if err != checkLeaderExists(conn); err != nil {
// return "", errors.Trace(err)
// }
return getLeader(data)
}
// GetWatchLeader gets the leader tso address in zookeeper and returns a watcher for leader change.
func GetWatchLeader(conn zkhelper.Conn, rootPath string) (string, <-chan zk.Event, error) {
data, _, watcher, err := conn.GetW(getLeaderPath(rootPath))
if err != nil {
return "", nil, errors.Trace(err)
}
addr, err := getLeader(data)
if err != nil {
return "", nil, errors.Trace(err)
}
// if err != checkLeaderExists(conn); err != nil {
// return "", errors.Trace(err)
// }
return addr, watcher, nil
}