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shiyanhui/dht
krpc.go
transaction
func (tm *transactionManager) transaction( key string, keyType int) *transaction { sm := tm.transactions if keyType == 1 { sm = tm.index } v, ok := sm.Get(key) if !ok { return nil } return v.(*transaction) }
go
func (tm *transactionManager) transaction( key string, keyType int) *transaction { sm := tm.transactions if keyType == 1 { sm = tm.index } v, ok := sm.Get(key) if !ok { return nil } return v.(*transaction) }
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// transaction returns a transaction. keyType should be one of 0, 1 which // represents transId and index each.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L234-L248
train
shiyanhui/dht
krpc.go
filterOne
func (tm *transactionManager) filterOne( transID string, addr *net.UDPAddr) *transaction { trans := tm.getByTransID(transID) if trans == nil || trans.node.addr.String() != addr.String() { return nil } return trans }
go
func (tm *transactionManager) filterOne( transID string, addr *net.UDPAddr) *transaction { trans := tm.getByTransID(transID) if trans == nil || trans.node.addr.String() != addr.String() { return nil } return trans }
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// transaction gets the proper transaction with whose id is transId and // address is addr.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L262-L271
train
shiyanhui/dht
krpc.go
query
func (tm *transactionManager) query(q *query, try int) { transID := q.data["t"].(string) trans := tm.newTransaction(transID, q) tm.insert(trans) defer tm.delete(trans.id) success := false for i := 0; i < try; i++ { if err := send(tm.dht, q.node.addr, q.data); err != nil { break } select { case <-trans.response: success = true break case <-time.After(time.Second * 15): } } if !success && q.node.id != nil { tm.dht.blackList.insert(q.node.addr.IP.String(), q.node.addr.Port) tm.dht.routingTable.RemoveByAddr(q.node.addr.String()) } }
go
func (tm *transactionManager) query(q *query, try int) { transID := q.data["t"].(string) trans := tm.newTransaction(transID, q) tm.insert(trans) defer tm.delete(trans.id) success := false for i := 0; i < try; i++ { if err := send(tm.dht, q.node.addr, q.data); err != nil { break } select { case <-trans.response: success = true break case <-time.After(time.Second * 15): } } if !success && q.node.id != nil { tm.dht.blackList.insert(q.node.addr.IP.String(), q.node.addr.Port) tm.dht.routingTable.RemoveByAddr(q.node.addr.String()) } }
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// query sends the query-formed data to udp and wait for the response. // When timeout, it will retry `try - 1` times, which means it will query // `try` times totally.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L276-L301
train
shiyanhui/dht
krpc.go
run
func (tm *transactionManager) run() { var q *query for { select { case q = <-tm.queryChan: go tm.query(q, tm.dht.Try) } } }
go
func (tm *transactionManager) run() { var q *query for { select { case q = <-tm.queryChan: go tm.query(q, tm.dht.Try) } } }
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// run starts to listen and consume the query chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L304-L313
train
shiyanhui/dht
krpc.go
sendQuery
func (tm *transactionManager) sendQuery( no *node, queryType string, a map[string]interface{}) { // If the target is self, then stop. if no.id != nil && no.id.RawString() == tm.dht.node.id.RawString() || tm.getByIndex(tm.genIndexKey(queryType, no.addr.String())) != nil || tm.dht.blackList.in(no.addr.IP.String(), no.addr.Port) { return } data := makeQuery(tm.genTransID(), queryType, a) tm.queryChan <- &query{ node: no, data: data, } }
go
func (tm *transactionManager) sendQuery( no *node, queryType string, a map[string]interface{}) { // If the target is self, then stop. if no.id != nil && no.id.RawString() == tm.dht.node.id.RawString() || tm.getByIndex(tm.genIndexKey(queryType, no.addr.String())) != nil || tm.dht.blackList.in(no.addr.IP.String(), no.addr.Port) { return } data := makeQuery(tm.genTransID(), queryType, a) tm.queryChan <- &query{ node: no, data: data, } }
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// sendQuery send query-formed data to the chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L316-L331
train
shiyanhui/dht
krpc.go
ping
func (tm *transactionManager) ping(no *node) { tm.sendQuery(no, pingType, map[string]interface{}{ "id": tm.dht.id(no.id.RawString()), }) }
go
func (tm *transactionManager) ping(no *node) { tm.sendQuery(no, pingType, map[string]interface{}{ "id": tm.dht.id(no.id.RawString()), }) }
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// ping sends ping query to the chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L334-L338
train
shiyanhui/dht
krpc.go
findNode
func (tm *transactionManager) findNode(no *node, target string) { tm.sendQuery(no, findNodeType, map[string]interface{}{ "id": tm.dht.id(target), "target": target, }) }
go
func (tm *transactionManager) findNode(no *node, target string) { tm.sendQuery(no, findNodeType, map[string]interface{}{ "id": tm.dht.id(target), "target": target, }) }
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// findNode sends find_node query to the chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L341-L346
train
shiyanhui/dht
krpc.go
getPeers
func (tm *transactionManager) getPeers(no *node, infoHash string) { tm.sendQuery(no, getPeersType, map[string]interface{}{ "id": tm.dht.id(infoHash), "info_hash": infoHash, }) }
go
func (tm *transactionManager) getPeers(no *node, infoHash string) { tm.sendQuery(no, getPeersType, map[string]interface{}{ "id": tm.dht.id(infoHash), "info_hash": infoHash, }) }
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// getPeers sends get_peers query to the chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L349-L354
train
shiyanhui/dht
krpc.go
announcePeer
func (tm *transactionManager) announcePeer( no *node, infoHash string, impliedPort, port int, token string) { tm.sendQuery(no, announcePeerType, map[string]interface{}{ "id": tm.dht.id(no.id.RawString()), "info_hash": infoHash, "implied_port": impliedPort, "port": port, "token": token, }) }
go
func (tm *transactionManager) announcePeer( no *node, infoHash string, impliedPort, port int, token string) { tm.sendQuery(no, announcePeerType, map[string]interface{}{ "id": tm.dht.id(no.id.RawString()), "info_hash": infoHash, "implied_port": impliedPort, "port": port, "token": token, }) }
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// announcePeer sends announce_peer query to the chan.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L357-L367
train
shiyanhui/dht
krpc.go
ParseKey
func ParseKey(data map[string]interface{}, key string, t string) error { val, ok := data[key] if !ok { return errors.New("lack of key") } switch t { case "string": _, ok = val.(string) case "int": _, ok = val.(int) case "map": _, ok = val.(map[string]interface{}) case "list": _, ok = val.([]interface{}) default: panic("invalid type") } if !ok { return errors.New("invalid key type") } return nil }
go
func ParseKey(data map[string]interface{}, key string, t string) error { val, ok := data[key] if !ok { return errors.New("lack of key") } switch t { case "string": _, ok = val.(string) case "int": _, ok = val.(int) case "map": _, ok = val.(map[string]interface{}) case "list": _, ok = val.([]interface{}) default: panic("invalid type") } if !ok { return errors.New("invalid key type") } return nil }
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// ParseKey parses the key in dict data. `t` is type of the keyed value. // It's one of "int", "string", "map", "list".
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L371-L395
train
shiyanhui/dht
krpc.go
ParseKeys
func ParseKeys(data map[string]interface{}, pairs [][]string) error { for _, args := range pairs { key, t := args[0], args[1] if err := ParseKey(data, key, t); err != nil { return err } } return nil }
go
func ParseKeys(data map[string]interface{}, pairs [][]string) error { for _, args := range pairs { key, t := args[0], args[1] if err := ParseKey(data, key, t); err != nil { return err } } return nil }
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// ParseKeys parses keys. It just wraps ParseKey.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L398-L406
train
shiyanhui/dht
krpc.go
parseMessage
func parseMessage(data interface{}) (map[string]interface{}, error) { response, ok := data.(map[string]interface{}) if !ok { return nil, errors.New("response is not dict") } if err := ParseKeys( response, [][]string{{"t", "string"}, {"y", "string"}}); err != nil { return nil, err } return response, nil }
go
func parseMessage(data interface{}) (map[string]interface{}, error) { response, ok := data.(map[string]interface{}) if !ok { return nil, errors.New("response is not dict") } if err := ParseKeys( response, [][]string{{"t", "string"}, {"y", "string"}}); err != nil { return nil, err } return response, nil }
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// parseMessage parses the basic data received from udp. // It returns a map value.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L410-L422
train
shiyanhui/dht
krpc.go
findOn
func findOn(dht *DHT, r map[string]interface{}, target *bitmap, queryType string) error { if err := ParseKey(r, "nodes", "string"); err != nil { return err } nodes := r["nodes"].(string) if len(nodes)%26 != 0 { return errors.New("the length of nodes should can be divided by 26") } hasNew, found := false, false for i := 0; i < len(nodes)/26; i++ { no, _ := newNodeFromCompactInfo( string(nodes[i*26:(i+1)*26]), dht.Network) if no.id.RawString() == target.RawString() { found = true } if dht.routingTable.Insert(no) { hasNew = true } } if found || !hasNew { return nil } targetID := target.RawString() for _, no := range dht.routingTable.GetNeighbors(target, dht.K) { switch queryType { case findNodeType: dht.transactionManager.findNode(no, targetID) case getPeersType: dht.transactionManager.getPeers(no, targetID) default: panic("invalid find type") } } return nil }
go
func findOn(dht *DHT, r map[string]interface{}, target *bitmap, queryType string) error { if err := ParseKey(r, "nodes", "string"); err != nil { return err } nodes := r["nodes"].(string) if len(nodes)%26 != 0 { return errors.New("the length of nodes should can be divided by 26") } hasNew, found := false, false for i := 0; i < len(nodes)/26; i++ { no, _ := newNodeFromCompactInfo( string(nodes[i*26:(i+1)*26]), dht.Network) if no.id.RawString() == target.RawString() { found = true } if dht.routingTable.Insert(no) { hasNew = true } } if found || !hasNew { return nil } targetID := target.RawString() for _, no := range dht.routingTable.GetNeighbors(target, dht.K) { switch queryType { case findNodeType: dht.transactionManager.findNode(no, targetID) case getPeersType: dht.transactionManager.getPeers(no, targetID) default: panic("invalid find type") } } return nil }
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// findOn puts nodes in the response to the routingTable, then if target is in // the nodes or all nodes are in the routingTable, it stops. Otherwise it // continues to findNode or getPeers.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L595-L637
train
shiyanhui/dht
krpc.go
handleError
func handleError(dht *DHT, addr *net.UDPAddr, response map[string]interface{}) (success bool) { if err := ParseKey(response, "e", "list"); err != nil { return } if e := response["e"].([]interface{}); len(e) != 2 { return } if trans := dht.transactionManager.filterOne( response["t"].(string), addr); trans != nil { trans.response <- struct{}{} } return true }
go
func handleError(dht *DHT, addr *net.UDPAddr, response map[string]interface{}) (success bool) { if err := ParseKey(response, "e", "list"); err != nil { return } if e := response["e"].([]interface{}); len(e) != 2 { return } if trans := dht.transactionManager.filterOne( response["t"].(string), addr); trans != nil { trans.response <- struct{}{} } return true }
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// handleError handles errors received from udp.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L728-L746
train
shiyanhui/dht
krpc.go
handle
func handle(dht *DHT, pkt packet) { if len(dht.workerTokens) == dht.PacketWorkerLimit { return } dht.workerTokens <- struct{}{} go func() { defer func() { <-dht.workerTokens }() if dht.blackList.in(pkt.raddr.IP.String(), pkt.raddr.Port) { return } data, err := Decode(pkt.data) if err != nil { return } response, err := parseMessage(data) if err != nil { return } if f, ok := handlers[response["y"].(string)]; ok { f(dht, pkt.raddr, response) } }() }
go
func handle(dht *DHT, pkt packet) { if len(dht.workerTokens) == dht.PacketWorkerLimit { return } dht.workerTokens <- struct{}{} go func() { defer func() { <-dht.workerTokens }() if dht.blackList.in(pkt.raddr.IP.String(), pkt.raddr.Port) { return } data, err := Decode(pkt.data) if err != nil { return } response, err := parseMessage(data) if err != nil { return } if f, ok := handlers[response["y"].(string)]; ok { f(dht, pkt.raddr, response) } }() }
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// handle handles packets received from udp.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/krpc.go#L755-L785
train
shiyanhui/dht
util.go
randomString
func randomString(size int) string { buff := make([]byte, size) rand.Read(buff) return string(buff) }
go
func randomString(size int) string { buff := make([]byte, size) rand.Read(buff) return string(buff) }
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// randomString generates a size-length string randomly.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/util.go#L15-L19
train
shiyanhui/dht
util.go
bytes2int
func bytes2int(data []byte) uint64 { n, val := len(data), uint64(0) if n > 8 { panic("data too long") } for i, b := range data { val += uint64(b) << uint64((n-i-1)*8) } return val }
go
func bytes2int(data []byte) uint64 { n, val := len(data), uint64(0) if n > 8 { panic("data too long") } for i, b := range data { val += uint64(b) << uint64((n-i-1)*8) } return val }
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// bytes2int returns the int value it represents.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/util.go#L22-L32
train
shiyanhui/dht
util.go
int2bytes
func int2bytes(val uint64) []byte { data, j := make([]byte, 8), -1 for i := 0; i < 8; i++ { shift := uint64((7 - i) * 8) data[i] = byte((val & (0xff << shift)) >> shift) if j == -1 && data[i] != 0 { j = i } } if j != -1 { return data[j:] } return data[:1] }
go
func int2bytes(val uint64) []byte { data, j := make([]byte, 8), -1 for i := 0; i < 8; i++ { shift := uint64((7 - i) * 8) data[i] = byte((val & (0xff << shift)) >> shift) if j == -1 && data[i] != 0 { j = i } } if j != -1 { return data[j:] } return data[:1] }
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// int2bytes returns the byte array it represents.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/util.go#L35-L50
train
shiyanhui/dht
util.go
getLocalIPs
func getLocalIPs() (ips []string) { ips = make([]string, 0, 6) addrs, err := net.InterfaceAddrs() if err != nil { return } for _, addr := range addrs { ip, _, err := net.ParseCIDR(addr.String()) if err != nil { continue } ips = append(ips, ip.String()) } return }
go
func getLocalIPs() (ips []string) { ips = make([]string, 0, 6) addrs, err := net.InterfaceAddrs() if err != nil { return } for _, addr := range addrs { ip, _, err := net.ParseCIDR(addr.String()) if err != nil { continue } ips = append(ips, ip.String()) } return }
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// getLocalIPs returns local ips.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/util.go#L85-L101
train
shiyanhui/dht
util.go
getRemoteIP
func getRemoteIP() (ip string, err error) { client := &http.Client{ Timeout: time.Second * 30, } req, err := http.NewRequest("GET", "http://ifconfig.me", nil) if err != nil { return } req.Header.Set("User-Agent", "curl") res, err := client.Do(req) if err != nil { return } defer res.Body.Close() data, err := ioutil.ReadAll(res.Body) if err != nil { return } ip = string(data) return }
go
func getRemoteIP() (ip string, err error) { client := &http.Client{ Timeout: time.Second * 30, } req, err := http.NewRequest("GET", "http://ifconfig.me", nil) if err != nil { return } req.Header.Set("User-Agent", "curl") res, err := client.Do(req) if err != nil { return } defer res.Body.Close() data, err := ioutil.ReadAll(res.Body) if err != nil { return } ip = string(data) return }
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// getRemoteIP returns the wlan ip.
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1b3b78ecf279a28409577382c3ae95df5703cf50
https://github.com/shiyanhui/dht/blob/1b3b78ecf279a28409577382c3ae95df5703cf50/util.go#L104-L129
train
oklog/ulid
ulid.go
New
func New(ms uint64, entropy io.Reader) (id ULID, err error) { if err = id.SetTime(ms); err != nil { return id, err } switch e := entropy.(type) { case nil: return id, err case MonotonicReader: err = e.MonotonicRead(ms, id[6:]) default: _, err = io.ReadFull(e, id[6:]) } return id, err }
go
func New(ms uint64, entropy io.Reader) (id ULID, err error) { if err = id.SetTime(ms); err != nil { return id, err } switch e := entropy.(type) { case nil: return id, err case MonotonicReader: err = e.MonotonicRead(ms, id[6:]) default: _, err = io.ReadFull(e, id[6:]) } return id, err }
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// New returns an ULID with the given Unix milliseconds timestamp and an // optional entropy source. Use the Timestamp function to convert // a time.Time to Unix milliseconds. // // ErrBigTime is returned when passing a timestamp bigger than MaxTime. // Reading from the entropy source may also return an error. // // Safety for concurrent use is only dependent on the safety of the // entropy source.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L97-L112
train
oklog/ulid
ulid.go
MustNew
func MustNew(ms uint64, entropy io.Reader) ULID { id, err := New(ms, entropy) if err != nil { panic(err) } return id }
go
func MustNew(ms uint64, entropy io.Reader) ULID { id, err := New(ms, entropy) if err != nil { panic(err) } return id }
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// MustNew is a convenience function equivalent to New that panics on failure // instead of returning an error.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L116-L122
train
oklog/ulid
ulid.go
MustParse
func MustParse(ulid string) ULID { id, err := Parse(ulid) if err != nil { panic(err) } return id }
go
func MustParse(ulid string) ULID { id, err := Parse(ulid) if err != nil { panic(err) } return id }
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// MustParse is a convenience function equivalent to Parse that panics on failure // instead of returning an error.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L219-L225
train
oklog/ulid
ulid.go
MustParseStrict
func MustParseStrict(ulid string) ULID { id, err := ParseStrict(ulid) if err != nil { panic(err) } return id }
go
func MustParseStrict(ulid string) ULID { id, err := ParseStrict(ulid) if err != nil { panic(err) } return id }
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// MustParseStrict is a convenience function equivalent to ParseStrict that // panics on failure instead of returning an error.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L229-L235
train
oklog/ulid
ulid.go
MarshalBinary
func (id ULID) MarshalBinary() ([]byte, error) { ulid := make([]byte, len(id)) return ulid, id.MarshalBinaryTo(ulid) }
go
func (id ULID) MarshalBinary() ([]byte, error) { ulid := make([]byte, len(id)) return ulid, id.MarshalBinaryTo(ulid) }
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// MarshalBinary implements the encoding.BinaryMarshaler interface by // returning the ULID as a byte slice.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L248-L251
train
oklog/ulid
ulid.go
UnmarshalBinary
func (id *ULID) UnmarshalBinary(data []byte) error { if len(data) != len(*id) { return ErrDataSize } copy((*id)[:], data) return nil }
go
func (id *ULID) UnmarshalBinary(data []byte) error { if len(data) != len(*id) { return ErrDataSize } copy((*id)[:], data) return nil }
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// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface by // copying the passed data and converting it to an ULID. ErrDataSize is // returned if the data length is different from ULID length.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L267-L274
train
oklog/ulid
ulid.go
MarshalText
func (id ULID) MarshalText() ([]byte, error) { ulid := make([]byte, EncodedSize) return ulid, id.MarshalTextTo(ulid) }
go
func (id ULID) MarshalText() ([]byte, error) { ulid := make([]byte, EncodedSize) return ulid, id.MarshalTextTo(ulid) }
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// MarshalText implements the encoding.TextMarshaler interface by // returning the string encoded ULID.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L281-L284
train
oklog/ulid
ulid.go
Time
func (id ULID) Time() uint64 { return uint64(id[5]) | uint64(id[4])<<8 | uint64(id[3])<<16 | uint64(id[2])<<24 | uint64(id[1])<<32 | uint64(id[0])<<40 }
go
func (id ULID) Time() uint64 { return uint64(id[5]) | uint64(id[4])<<8 | uint64(id[3])<<16 | uint64(id[2])<<24 | uint64(id[1])<<32 | uint64(id[0])<<40 }
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// Time returns the Unix time in milliseconds encoded in the ULID. // Use the top level Time function to convert the returned value to // a time.Time.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L375-L379
train
oklog/ulid
ulid.go
Timestamp
func Timestamp(t time.Time) uint64 { return uint64(t.Unix())*1000 + uint64(t.Nanosecond()/int(time.Millisecond)) }
go
func Timestamp(t time.Time) uint64 { return uint64(t.Unix())*1000 + uint64(t.Nanosecond()/int(time.Millisecond)) }
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// Timestamp converts a time.Time to Unix milliseconds. // // Because of the way ULID stores time, times from the year // 10889 produces undefined results.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L398-L401
train
oklog/ulid
ulid.go
Time
func Time(ms uint64) time.Time { s := int64(ms / 1e3) ns := int64((ms % 1e3) * 1e6) return time.Unix(s, ns) }
go
func Time(ms uint64) time.Time { s := int64(ms / 1e3) ns := int64((ms % 1e3) * 1e6) return time.Unix(s, ns) }
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// Time converts Unix milliseconds in the format // returned by the Timestamp function to a time.Time.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L405-L409
train
oklog/ulid
ulid.go
SetTime
func (id *ULID) SetTime(ms uint64) error { if ms > maxTime { return ErrBigTime } (*id)[0] = byte(ms >> 40) (*id)[1] = byte(ms >> 32) (*id)[2] = byte(ms >> 24) (*id)[3] = byte(ms >> 16) (*id)[4] = byte(ms >> 8) (*id)[5] = byte(ms) return nil }
go
func (id *ULID) SetTime(ms uint64) error { if ms > maxTime { return ErrBigTime } (*id)[0] = byte(ms >> 40) (*id)[1] = byte(ms >> 32) (*id)[2] = byte(ms >> 24) (*id)[3] = byte(ms >> 16) (*id)[4] = byte(ms >> 8) (*id)[5] = byte(ms) return nil }
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// SetTime sets the time component of the ULID to the given Unix time // in milliseconds.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L413-L426
train
oklog/ulid
ulid.go
Entropy
func (id ULID) Entropy() []byte { e := make([]byte, 10) copy(e, id[6:]) return e }
go
func (id ULID) Entropy() []byte { e := make([]byte, 10) copy(e, id[6:]) return e }
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// Entropy returns the entropy from the ULID.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L429-L433
train
oklog/ulid
ulid.go
Scan
func (id *ULID) Scan(src interface{}) error { switch x := src.(type) { case nil: return nil case string: return id.UnmarshalText([]byte(x)) case []byte: return id.UnmarshalBinary(x) } return ErrScanValue }
go
func (id *ULID) Scan(src interface{}) error { switch x := src.(type) { case nil: return nil case string: return id.UnmarshalText([]byte(x)) case []byte: return id.UnmarshalBinary(x) } return ErrScanValue }
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// Scan implements the sql.Scanner interface. It supports scanning // a string or byte slice.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L454-L465
train
oklog/ulid
ulid.go
MonotonicRead
func (m *MonotonicEntropy) MonotonicRead(ms uint64, entropy []byte) (err error) { if !m.entropy.IsZero() && m.ms == ms { err = m.increment() m.entropy.AppendTo(entropy) } else if _, err = io.ReadFull(m.Reader, entropy); err == nil { m.ms = ms m.entropy.SetBytes(entropy) } return err }
go
func (m *MonotonicEntropy) MonotonicRead(ms uint64, entropy []byte) (err error) { if !m.entropy.IsZero() && m.ms == ms { err = m.increment() m.entropy.AppendTo(entropy) } else if _, err = io.ReadFull(m.Reader, entropy); err == nil { m.ms = ms m.entropy.SetBytes(entropy) } return err }
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// MonotonicRead implements the MonotonicReader interface.
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bacfb41fdd06edf5294635d18ec387dee671a964
https://github.com/oklog/ulid/blob/bacfb41fdd06edf5294635d18ec387dee671a964/ulid.go#L528-L537
train
olekukonko/tablewriter
table.go
NewWriter
func NewWriter(writer io.Writer) *Table { t := &Table{ out: writer, rows: [][]string{}, lines: [][][]string{}, cs: make(map[int]int), rs: make(map[int]int), headers: [][]string{}, footers: [][]string{}, caption: false, captionText: "Table caption.", autoFmt: true, autoWrap: true, reflowText: true, mW: MAX_ROW_WIDTH, pCenter: CENTER, pRow: ROW, pColumn: COLUMN, tColumn: -1, tRow: -1, hAlign: ALIGN_DEFAULT, fAlign: ALIGN_DEFAULT, align: ALIGN_DEFAULT, newLine: NEWLINE, rowLine: false, hdrLine: true, borders: Border{Left: true, Right: true, Bottom: true, Top: true}, colSize: -1, headerParams: []string{}, columnsParams: []string{}, footerParams: []string{}, columnsAlign: []int{}} return t }
go
func NewWriter(writer io.Writer) *Table { t := &Table{ out: writer, rows: [][]string{}, lines: [][][]string{}, cs: make(map[int]int), rs: make(map[int]int), headers: [][]string{}, footers: [][]string{}, caption: false, captionText: "Table caption.", autoFmt: true, autoWrap: true, reflowText: true, mW: MAX_ROW_WIDTH, pCenter: CENTER, pRow: ROW, pColumn: COLUMN, tColumn: -1, tRow: -1, hAlign: ALIGN_DEFAULT, fAlign: ALIGN_DEFAULT, align: ALIGN_DEFAULT, newLine: NEWLINE, rowLine: false, hdrLine: true, borders: Border{Left: true, Right: true, Bottom: true, Top: true}, colSize: -1, headerParams: []string{}, columnsParams: []string{}, footerParams: []string{}, columnsAlign: []int{}} return t }
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// Start New Table // Take io.Writer Directly
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7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L86-L119
train
olekukonko/tablewriter
table.go
Render
func (t *Table) Render() { if t.borders.Top { t.printLine(true) } t.printHeading() if t.autoMergeCells { t.printRowsMergeCells() } else { t.printRows() } if !t.rowLine && t.borders.Bottom { t.printLine(true) } t.printFooter() if t.caption { t.printCaption() } }
go
func (t *Table) Render() { if t.borders.Top { t.printLine(true) } t.printHeading() if t.autoMergeCells { t.printRowsMergeCells() } else { t.printRows() } if !t.rowLine && t.borders.Bottom { t.printLine(true) } t.printFooter() if t.caption { t.printCaption() } }
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// Render table output
[ "Render", "table", "output" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L122-L140
train
olekukonko/tablewriter
table.go
SetHeader
func (t *Table) SetHeader(keys []string) { t.colSize = len(keys) for i, v := range keys { lines := t.parseDimension(v, i, headerRowIdx) t.headers = append(t.headers, lines) } }
go
func (t *Table) SetHeader(keys []string) { t.colSize = len(keys) for i, v := range keys { lines := t.parseDimension(v, i, headerRowIdx) t.headers = append(t.headers, lines) } }
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// Set table header
[ "Set", "table", "header" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L148-L154
train
olekukonko/tablewriter
table.go
SetFooter
func (t *Table) SetFooter(keys []string) { //t.colSize = len(keys) for i, v := range keys { lines := t.parseDimension(v, i, footerRowIdx) t.footers = append(t.footers, lines) } }
go
func (t *Table) SetFooter(keys []string) { //t.colSize = len(keys) for i, v := range keys { lines := t.parseDimension(v, i, footerRowIdx) t.footers = append(t.footers, lines) } }
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// Set table Footer
[ "Set", "table", "Footer" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L157-L163
train
olekukonko/tablewriter
table.go
SetCaption
func (t *Table) SetCaption(caption bool, captionText ...string) { t.caption = caption if len(captionText) == 1 { t.captionText = captionText[0] } }
go
func (t *Table) SetCaption(caption bool, captionText ...string) { t.caption = caption if len(captionText) == 1 { t.captionText = captionText[0] } }
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// Set table Caption
[ "Set", "table", "Caption" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L166-L171
train
olekukonko/tablewriter
table.go
SetColMinWidth
func (t *Table) SetColMinWidth(column int, width int) { t.cs[column] = width }
go
func (t *Table) SetColMinWidth(column int, width int) { t.cs[column] = width }
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// Set the minimal width for a column
[ "Set", "the", "minimal", "width", "for", "a", "column" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L194-L196
train
olekukonko/tablewriter
table.go
Append
func (t *Table) Append(row []string) { rowSize := len(t.headers) if rowSize > t.colSize { t.colSize = rowSize } n := len(t.lines) line := [][]string{} for i, v := range row { // Detect string width // Detect String height // Break strings into words out := t.parseDimension(v, i, n) // Append broken words line = append(line, out) } t.lines = append(t.lines, line) }
go
func (t *Table) Append(row []string) { rowSize := len(t.headers) if rowSize > t.colSize { t.colSize = rowSize } n := len(t.lines) line := [][]string{} for i, v := range row { // Detect string width // Detect String height // Break strings into words out := t.parseDimension(v, i, n) // Append broken words line = append(line, out) } t.lines = append(t.lines, line) }
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// Append row to table
[ "Append", "row", "to", "table" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L278-L297
train
olekukonko/tablewriter
table.go
AppendBulk
func (t *Table) AppendBulk(rows [][]string) { for _, row := range rows { t.Append(row) } }
go
func (t *Table) AppendBulk(rows [][]string) { for _, row := range rows { t.Append(row) } }
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// Allow Support for Bulk Append // Eliminates repeated for loops
[ "Allow", "Support", "for", "Bulk", "Append", "Eliminates", "repeated", "for", "loops" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L301-L305
train
olekukonko/tablewriter
table.go
center
func (t *Table) center(i int) string { if i == -1 && !t.borders.Left { return t.pRow } if i == len(t.cs)-1 && !t.borders.Right { return t.pRow } return t.pCenter }
go
func (t *Table) center(i int) string { if i == -1 && !t.borders.Left { return t.pRow } if i == len(t.cs)-1 && !t.borders.Right { return t.pRow } return t.pCenter }
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// Center based on position and border.
[ "Center", "based", "on", "position", "and", "border", "." ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L323-L333
train
olekukonko/tablewriter
table.go
printLine
func (t *Table) printLine(nl bool) { fmt.Fprint(t.out, t.center(-1)) for i := 0; i < len(t.cs); i++ { v := t.cs[i] fmt.Fprintf(t.out, "%s%s%s%s", t.pRow, strings.Repeat(string(t.pRow), v), t.pRow, t.center(i)) } if nl { fmt.Fprint(t.out, t.newLine) } }
go
func (t *Table) printLine(nl bool) { fmt.Fprint(t.out, t.center(-1)) for i := 0; i < len(t.cs); i++ { v := t.cs[i] fmt.Fprintf(t.out, "%s%s%s%s", t.pRow, strings.Repeat(string(t.pRow), v), t.pRow, t.center(i)) } if nl { fmt.Fprint(t.out, t.newLine) } }
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// Print line based on row width
[ "Print", "line", "based", "on", "row", "width" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L336-L349
train
olekukonko/tablewriter
table.go
printLineOptionalCellSeparators
func (t *Table) printLineOptionalCellSeparators(nl bool, displayCellSeparator []bool) { fmt.Fprint(t.out, t.pCenter) for i := 0; i < len(t.cs); i++ { v := t.cs[i] if i > len(displayCellSeparator) || displayCellSeparator[i] { // Display the cell separator fmt.Fprintf(t.out, "%s%s%s%s", t.pRow, strings.Repeat(string(t.pRow), v), t.pRow, t.pCenter) } else { // Don't display the cell separator for this cell fmt.Fprintf(t.out, "%s%s", strings.Repeat(" ", v+2), t.pCenter) } } if nl { fmt.Fprint(t.out, t.newLine) } }
go
func (t *Table) printLineOptionalCellSeparators(nl bool, displayCellSeparator []bool) { fmt.Fprint(t.out, t.pCenter) for i := 0; i < len(t.cs); i++ { v := t.cs[i] if i > len(displayCellSeparator) || displayCellSeparator[i] { // Display the cell separator fmt.Fprintf(t.out, "%s%s%s%s", t.pRow, strings.Repeat(string(t.pRow), v), t.pRow, t.pCenter) } else { // Don't display the cell separator for this cell fmt.Fprintf(t.out, "%s%s", strings.Repeat(" ", v+2), t.pCenter) } } if nl { fmt.Fprint(t.out, t.newLine) } }
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// Print line based on row width with our without cell separator
[ "Print", "line", "based", "on", "row", "width", "with", "our", "without", "cell", "separator" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L352-L373
train
olekukonko/tablewriter
table.go
pad
func pad(align int) func(string, string, int) string { padFunc := Pad switch align { case ALIGN_LEFT: padFunc = PadRight case ALIGN_RIGHT: padFunc = PadLeft } return padFunc }
go
func pad(align int) func(string, string, int) string { padFunc := Pad switch align { case ALIGN_LEFT: padFunc = PadRight case ALIGN_RIGHT: padFunc = PadLeft } return padFunc }
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// Return the PadRight function if align is left, PadLeft if align is right, // and Pad by default
[ "Return", "the", "PadRight", "function", "if", "align", "is", "left", "PadLeft", "if", "align", "is", "right", "and", "Pad", "by", "default" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L377-L386
train
olekukonko/tablewriter
table.go
printCaption
func (t Table) printCaption() { width := t.getTableWidth() paragraph, _ := WrapString(t.captionText, width) for linecount := 0; linecount < len(paragraph); linecount++ { fmt.Fprintln(t.out, paragraph[linecount]) } }
go
func (t Table) printCaption() { width := t.getTableWidth() paragraph, _ := WrapString(t.captionText, width) for linecount := 0; linecount < len(paragraph); linecount++ { fmt.Fprintln(t.out, paragraph[linecount]) } }
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// Print caption text
[ "Print", "caption", "text" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L580-L586
train
olekukonko/tablewriter
table.go
getTableWidth
func (t Table) getTableWidth() int { var chars int for _, v := range t.cs { chars += v } // Add chars, spaces, seperators to calculate the total width of the table. // ncols := t.colSize // spaces := ncols * 2 // seps := ncols + 1 return (chars + (3 * t.colSize) + 2) }
go
func (t Table) getTableWidth() int { var chars int for _, v := range t.cs { chars += v } // Add chars, spaces, seperators to calculate the total width of the table. // ncols := t.colSize // spaces := ncols * 2 // seps := ncols + 1 return (chars + (3 * t.colSize) + 2) }
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// Calculate the total number of characters in a row
[ "Calculate", "the", "total", "number", "of", "characters", "in", "a", "row" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L589-L601
train
olekukonko/tablewriter
table.go
printRow
func (t *Table) printRow(columns [][]string, rowIdx int) { // Get Maximum Height max := t.rs[rowIdx] total := len(columns) // TODO Fix uneven col size // if total < t.colSize { // for n := t.colSize - total; n < t.colSize ; n++ { // columns = append(columns, []string{SPACE}) // t.cs[n] = t.mW // } //} // Pad Each Height pads := []int{} // Checking for ANSI escape sequences for columns is_esc_seq := false if len(t.columnsParams) > 0 { is_esc_seq = true } t.fillAlignment(total) for i, line := range columns { length := len(line) pad := max - length pads = append(pads, pad) for n := 0; n < pad; n++ { columns[i] = append(columns[i], " ") } } //fmt.Println(max, "\n") for x := 0; x < max; x++ { for y := 0; y < total; y++ { // Check if border is set fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn)) fmt.Fprintf(t.out, SPACE) str := columns[y][x] // Embedding escape sequence with column value if is_esc_seq { str = format(str, t.columnsParams[y]) } // This would print alignment // Default alignment would use multiple configuration switch t.columnsAlign[y] { case ALIGN_CENTER: // fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) case ALIGN_RIGHT: fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) case ALIGN_LEFT: fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) default: if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) { fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) } else { fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) // TODO Custom alignment per column //if max == 1 || pads[y] > 0 { // fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) //} else { // fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) //} } } fmt.Fprintf(t.out, SPACE) } // Check if border is set // Replace with space if not set fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE)) fmt.Fprint(t.out, t.newLine) } if t.rowLine { t.printLine(true) } }
go
func (t *Table) printRow(columns [][]string, rowIdx int) { // Get Maximum Height max := t.rs[rowIdx] total := len(columns) // TODO Fix uneven col size // if total < t.colSize { // for n := t.colSize - total; n < t.colSize ; n++ { // columns = append(columns, []string{SPACE}) // t.cs[n] = t.mW // } //} // Pad Each Height pads := []int{} // Checking for ANSI escape sequences for columns is_esc_seq := false if len(t.columnsParams) > 0 { is_esc_seq = true } t.fillAlignment(total) for i, line := range columns { length := len(line) pad := max - length pads = append(pads, pad) for n := 0; n < pad; n++ { columns[i] = append(columns[i], " ") } } //fmt.Println(max, "\n") for x := 0; x < max; x++ { for y := 0; y < total; y++ { // Check if border is set fmt.Fprint(t.out, ConditionString((!t.borders.Left && y == 0), SPACE, t.pColumn)) fmt.Fprintf(t.out, SPACE) str := columns[y][x] // Embedding escape sequence with column value if is_esc_seq { str = format(str, t.columnsParams[y]) } // This would print alignment // Default alignment would use multiple configuration switch t.columnsAlign[y] { case ALIGN_CENTER: // fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) case ALIGN_RIGHT: fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) case ALIGN_LEFT: fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) default: if decimal.MatchString(strings.TrimSpace(str)) || percent.MatchString(strings.TrimSpace(str)) { fmt.Fprintf(t.out, "%s", PadLeft(str, SPACE, t.cs[y])) } else { fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) // TODO Custom alignment per column //if max == 1 || pads[y] > 0 { // fmt.Fprintf(t.out, "%s", Pad(str, SPACE, t.cs[y])) //} else { // fmt.Fprintf(t.out, "%s", PadRight(str, SPACE, t.cs[y])) //} } } fmt.Fprintf(t.out, SPACE) } // Check if border is set // Replace with space if not set fmt.Fprint(t.out, ConditionString(t.borders.Left, t.pColumn, SPACE)) fmt.Fprint(t.out, t.newLine) } if t.rowLine { t.printLine(true) } }
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// Print Row Information // Adjust column alignment based on type
[ "Print", "Row", "Information", "Adjust", "column", "alignment", "based", "on", "type" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L621-L702
train
olekukonko/tablewriter
table.go
printRowsMergeCells
func (t *Table) printRowsMergeCells() { var previousLine []string var displayCellBorder []bool var tmpWriter bytes.Buffer for i, lines := range t.lines { // We store the display of the current line in a tmp writer, as we need to know which border needs to be print above previousLine, displayCellBorder = t.printRowMergeCells(&tmpWriter, lines, i, previousLine) if i > 0 { //We don't need to print borders above first line if t.rowLine { t.printLineOptionalCellSeparators(true, displayCellBorder) } } tmpWriter.WriteTo(t.out) } //Print the end of the table if t.rowLine { t.printLine(true) } }
go
func (t *Table) printRowsMergeCells() { var previousLine []string var displayCellBorder []bool var tmpWriter bytes.Buffer for i, lines := range t.lines { // We store the display of the current line in a tmp writer, as we need to know which border needs to be print above previousLine, displayCellBorder = t.printRowMergeCells(&tmpWriter, lines, i, previousLine) if i > 0 { //We don't need to print borders above first line if t.rowLine { t.printLineOptionalCellSeparators(true, displayCellBorder) } } tmpWriter.WriteTo(t.out) } //Print the end of the table if t.rowLine { t.printLine(true) } }
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// Print the rows of the table and merge the cells that are identical
[ "Print", "the", "rows", "of", "the", "table", "and", "merge", "the", "cells", "that", "are", "identical" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table.go#L705-L723
train
olekukonko/tablewriter
csv.go
NewCSV
func NewCSV(writer io.Writer, fileName string, hasHeader bool) (*Table, error) { file, err := os.Open(fileName) if err != nil { return &Table{}, err } defer file.Close() csvReader := csv.NewReader(file) t, err := NewCSVReader(writer, csvReader, hasHeader) return t, err }
go
func NewCSV(writer io.Writer, fileName string, hasHeader bool) (*Table, error) { file, err := os.Open(fileName) if err != nil { return &Table{}, err } defer file.Close() csvReader := csv.NewReader(file) t, err := NewCSVReader(writer, csvReader, hasHeader) return t, err }
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// Start A new table by importing from a CSV file // Takes io.Writer and csv File name
[ "Start", "A", "new", "table", "by", "importing", "from", "a", "CSV", "file", "Takes", "io", ".", "Writer", "and", "csv", "File", "name" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/csv.go#L18-L27
train
olekukonko/tablewriter
table_with_color.go
format
func format(s string, codes interface{}) string { var seq string switch v := codes.(type) { case string: seq = v case []int: seq = makeSequence(v) default: return s } if len(seq) == 0 { return s } return startFormat(seq) + s + stopFormat() }
go
func format(s string, codes interface{}) string { var seq string switch v := codes.(type) { case string: seq = v case []int: seq = makeSequence(v) default: return s } if len(seq) == 0 { return s } return startFormat(seq) + s + stopFormat() }
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// Adding ANSI escape sequences before and after string
[ "Adding", "ANSI", "escape", "sequences", "before", "and", "after", "string" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/table_with_color.go#L83-L100
train
olekukonko/tablewriter
util.go
ConditionString
func ConditionString(cond bool, valid, inValid string) string { if cond { return valid } return inValid }
go
func ConditionString(cond bool, valid, inValid string) string { if cond { return valid } return inValid }
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// Simple Condition for string // Returns value based on condition
[ "Simple", "Condition", "for", "string", "Returns", "value", "based", "on", "condition" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/util.go#L26-L31
train
olekukonko/tablewriter
util.go
Title
func Title(name string) string { origLen := len(name) rs := []rune(name) for i, r := range rs { switch r { case '_': rs[i] = ' ' case '.': // ignore floating number 0.0 if (i != 0 && !isNumOrSpace(rs[i-1])) || (i != len(rs)-1 && !isNumOrSpace(rs[i+1])) { rs[i] = ' ' } } } name = string(rs) name = strings.TrimSpace(name) if len(name) == 0 && origLen > 0 { // Keep at least one character. This is important to preserve // empty lines in multi-line headers/footers. name = " " } return strings.ToUpper(name) }
go
func Title(name string) string { origLen := len(name) rs := []rune(name) for i, r := range rs { switch r { case '_': rs[i] = ' ' case '.': // ignore floating number 0.0 if (i != 0 && !isNumOrSpace(rs[i-1])) || (i != len(rs)-1 && !isNumOrSpace(rs[i+1])) { rs[i] = ' ' } } } name = string(rs) name = strings.TrimSpace(name) if len(name) == 0 && origLen > 0 { // Keep at least one character. This is important to preserve // empty lines in multi-line headers/footers. name = " " } return strings.ToUpper(name) }
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// Format Table Header // Replace _ , . and spaces
[ "Format", "Table", "Header", "Replace", "_", ".", "and", "spaces" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/util.go#L39-L61
train
olekukonko/tablewriter
util.go
Pad
func Pad(s, pad string, width int) string { gap := width - DisplayWidth(s) if gap > 0 { gapLeft := int(math.Ceil(float64(gap / 2))) gapRight := gap - gapLeft return strings.Repeat(string(pad), gapLeft) + s + strings.Repeat(string(pad), gapRight) } return s }
go
func Pad(s, pad string, width int) string { gap := width - DisplayWidth(s) if gap > 0 { gapLeft := int(math.Ceil(float64(gap / 2))) gapRight := gap - gapLeft return strings.Repeat(string(pad), gapLeft) + s + strings.Repeat(string(pad), gapRight) } return s }
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// Pad String // Attempts to place string in the center
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7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/util.go#L65-L73
train
olekukonko/tablewriter
util.go
PadRight
func PadRight(s, pad string, width int) string { gap := width - DisplayWidth(s) if gap > 0 { return s + strings.Repeat(string(pad), gap) } return s }
go
func PadRight(s, pad string, width int) string { gap := width - DisplayWidth(s) if gap > 0 { return s + strings.Repeat(string(pad), gap) } return s }
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// Pad String Right position // This would place string at the left side of the screen
[ "Pad", "String", "Right", "position", "This", "would", "place", "string", "at", "the", "left", "side", "of", "the", "screen" ]
7e037d187b0c13d81ccf0dd1c6b990c2759e6597
https://github.com/olekukonko/tablewriter/blob/7e037d187b0c13d81ccf0dd1c6b990c2759e6597/util.go#L77-L83
train
openzipkin/zipkin-go
propagation/b3/grpc.go
ExtractGRPC
func ExtractGRPC(md *metadata.MD) propagation.Extractor { return func() (*model.SpanContext, error) { var ( traceIDHeader = GetGRPCHeader(md, TraceID) spanIDHeader = GetGRPCHeader(md, SpanID) parentSpanIDHeader = GetGRPCHeader(md, ParentSpanID) sampledHeader = GetGRPCHeader(md, Sampled) flagsHeader = GetGRPCHeader(md, Flags) ) return ParseHeaders( traceIDHeader, spanIDHeader, parentSpanIDHeader, sampledHeader, flagsHeader, ) } }
go
func ExtractGRPC(md *metadata.MD) propagation.Extractor { return func() (*model.SpanContext, error) { var ( traceIDHeader = GetGRPCHeader(md, TraceID) spanIDHeader = GetGRPCHeader(md, SpanID) parentSpanIDHeader = GetGRPCHeader(md, ParentSpanID) sampledHeader = GetGRPCHeader(md, Sampled) flagsHeader = GetGRPCHeader(md, Flags) ) return ParseHeaders( traceIDHeader, spanIDHeader, parentSpanIDHeader, sampledHeader, flagsHeader, ) } }
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// ExtractGRPC will extract a span.Context from the gRPC Request metadata if // found in B3 header format.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/propagation/b3/grpc.go#L26-L41
train
openzipkin/zipkin-go
propagation/b3/grpc.go
InjectGRPC
func InjectGRPC(md *metadata.MD) propagation.Injector { return func(sc model.SpanContext) error { if (model.SpanContext{}) == sc { return ErrEmptyContext } if sc.Debug { setGRPCHeader(md, Flags, "1") } else if sc.Sampled != nil { // Debug is encoded as X-B3-Flags: 1. Since Debug implies Sampled, // we don't send "X-B3-Sampled" if Debug is set. if *sc.Sampled { setGRPCHeader(md, Sampled, "1") } else { setGRPCHeader(md, Sampled, "0") } } if !sc.TraceID.Empty() && sc.ID > 0 { // set identifiers setGRPCHeader(md, TraceID, sc.TraceID.String()) setGRPCHeader(md, SpanID, sc.ID.String()) if sc.ParentID != nil { setGRPCHeader(md, ParentSpanID, sc.ParentID.String()) } } return nil } }
go
func InjectGRPC(md *metadata.MD) propagation.Injector { return func(sc model.SpanContext) error { if (model.SpanContext{}) == sc { return ErrEmptyContext } if sc.Debug { setGRPCHeader(md, Flags, "1") } else if sc.Sampled != nil { // Debug is encoded as X-B3-Flags: 1. Since Debug implies Sampled, // we don't send "X-B3-Sampled" if Debug is set. if *sc.Sampled { setGRPCHeader(md, Sampled, "1") } else { setGRPCHeader(md, Sampled, "0") } } if !sc.TraceID.Empty() && sc.ID > 0 { // set identifiers setGRPCHeader(md, TraceID, sc.TraceID.String()) setGRPCHeader(md, SpanID, sc.ID.String()) if sc.ParentID != nil { setGRPCHeader(md, ParentSpanID, sc.ParentID.String()) } } return nil } }
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// InjectGRPC will inject a span.Context into gRPC metadata.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/propagation/b3/grpc.go#L44-L73
train
openzipkin/zipkin-go
propagation/b3/grpc.go
GetGRPCHeader
func GetGRPCHeader(md *metadata.MD, key string) string { v := (*md)[key] if len(v) < 1 { return "" } return v[len(v)-1] }
go
func GetGRPCHeader(md *metadata.MD, key string) string { v := (*md)[key] if len(v) < 1 { return "" } return v[len(v)-1] }
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// GetGRPCHeader retrieves the last value found for a particular key. If key is // not found it returns an empty string.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/propagation/b3/grpc.go#L77-L83
train
openzipkin/zipkin-go
reporter/recorder/recorder.go
Send
func (r *ReporterRecorder) Send(span model.SpanModel) { r.mtx.Lock() r.spans = append(r.spans, span) r.mtx.Unlock() }
go
func (r *ReporterRecorder) Send(span model.SpanModel) { r.mtx.Lock() r.spans = append(r.spans, span) r.mtx.Unlock() }
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// Send adds the provided span to the span list held by the recorder.
[ "Send", "adds", "the", "provided", "span", "to", "the", "span", "list", "held", "by", "the", "recorder", "." ]
a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/recorder/recorder.go#L38-L42
train
openzipkin/zipkin-go
reporter/recorder/recorder.go
Flush
func (r *ReporterRecorder) Flush() []model.SpanModel { r.mtx.Lock() spans := r.spans r.spans = nil r.mtx.Unlock() return spans }
go
func (r *ReporterRecorder) Flush() []model.SpanModel { r.mtx.Lock() spans := r.spans r.spans = nil r.mtx.Unlock() return spans }
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// Flush returns all recorded spans and clears its internal span storage
[ "Flush", "returns", "all", "recorded", "spans", "and", "clears", "its", "internal", "span", "storage" ]
a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/recorder/recorder.go#L45-L51
train
openzipkin/zipkin-go
tracer_options.go
WithLocalEndpoint
func WithLocalEndpoint(e *model.Endpoint) TracerOption { return func(o *Tracer) error { if e == nil { o.localEndpoint = nil return nil } ep := *e o.localEndpoint = &ep return nil } }
go
func WithLocalEndpoint(e *model.Endpoint) TracerOption { return func(o *Tracer) error { if e == nil { o.localEndpoint = nil return nil } ep := *e o.localEndpoint = &ep return nil } }
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// WithLocalEndpoint sets the local endpoint of the tracer.
[ "WithLocalEndpoint", "sets", "the", "local", "endpoint", "of", "the", "tracer", "." ]
a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L45-L55
train
openzipkin/zipkin-go
tracer_options.go
WithExtractFailurePolicy
func WithExtractFailurePolicy(p ExtractFailurePolicy) TracerOption { return func(o *Tracer) error { if p < 0 || p > ExtractFailurePolicyTagAndRestart { return ErrInvalidExtractFailurePolicy } o.extractFailurePolicy = p return nil } }
go
func WithExtractFailurePolicy(p ExtractFailurePolicy) TracerOption { return func(o *Tracer) error { if p < 0 || p > ExtractFailurePolicyTagAndRestart { return ErrInvalidExtractFailurePolicy } o.extractFailurePolicy = p return nil } }
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// WithExtractFailurePolicy allows one to set the ExtractFailurePolicy.
[ "WithExtractFailurePolicy", "allows", "one", "to", "set", "the", "ExtractFailurePolicy", "." ]
a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L58-L66
train
openzipkin/zipkin-go
tracer_options.go
WithNoopSpan
func WithNoopSpan(unsampledNoop bool) TracerOption { return func(o *Tracer) error { o.unsampledNoop = unsampledNoop return nil } }
go
func WithNoopSpan(unsampledNoop bool) TracerOption { return func(o *Tracer) error { o.unsampledNoop = unsampledNoop return nil } }
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// WithNoopSpan if set to true will switch to a NoopSpan implementation // if the trace is not sampled.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L70-L75
train
openzipkin/zipkin-go
tracer_options.go
WithSampler
func WithSampler(sampler Sampler) TracerOption { return func(o *Tracer) error { o.sampler = sampler return nil } }
go
func WithSampler(sampler Sampler) TracerOption { return func(o *Tracer) error { o.sampler = sampler return nil } }
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// WithSampler allows one to set a Sampler function
[ "WithSampler", "allows", "one", "to", "set", "a", "Sampler", "function" ]
a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L89-L94
train
openzipkin/zipkin-go
tracer_options.go
WithTraceID128Bit
func WithTraceID128Bit(val bool) TracerOption { return func(o *Tracer) error { if val { o.generate = idgenerator.NewRandom128() } else { o.generate = idgenerator.NewRandom64() } return nil } }
go
func WithTraceID128Bit(val bool) TracerOption { return func(o *Tracer) error { if val { o.generate = idgenerator.NewRandom128() } else { o.generate = idgenerator.NewRandom64() } return nil } }
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// WithTraceID128Bit if set to true will instruct the Tracer to start traces // with 128 bit TraceID's. If set to false the Tracer will start traces with // 64 bits.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L99-L108
train
openzipkin/zipkin-go
tracer_options.go
WithIDGenerator
func WithIDGenerator(generator idgenerator.IDGenerator) TracerOption { return func(o *Tracer) error { o.generate = generator return nil } }
go
func WithIDGenerator(generator idgenerator.IDGenerator) TracerOption { return func(o *Tracer) error { o.generate = generator return nil } }
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// WithIDGenerator allows one to set a custom ID Generator
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L111-L116
train
openzipkin/zipkin-go
tracer_options.go
WithTags
func WithTags(tags map[string]string) TracerOption { return func(o *Tracer) error { for k, v := range tags { o.defaultTags[k] = v } return nil } }
go
func WithTags(tags map[string]string) TracerOption { return func(o *Tracer) error { for k, v := range tags { o.defaultTags[k] = v } return nil } }
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// WithTags allows one to set default tags to be added to each created span
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L119-L126
train
openzipkin/zipkin-go
tracer_options.go
WithNoopTracer
func WithNoopTracer(tracerNoop bool) TracerOption { return func(o *Tracer) error { if tracerNoop { o.noop = 1 } else { o.noop = 0 } return nil } }
go
func WithNoopTracer(tracerNoop bool) TracerOption { return func(o *Tracer) error { if tracerNoop { o.noop = 1 } else { o.noop = 0 } return nil } }
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// WithNoopTracer allows one to start the Tracer as Noop implementation.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer_options.go#L129-L138
train
openzipkin/zipkin-go
middleware/grpc/client.go
NewClientHandler
func NewClientHandler(tracer *zipkin.Tracer, options ...ClientOption) stats.Handler { c := &clientHandler{ tracer: tracer, } for _, option := range options { option(c) } return c }
go
func NewClientHandler(tracer *zipkin.Tracer, options ...ClientOption) stats.Handler { c := &clientHandler{ tracer: tracer, } for _, option := range options { option(c) } return c }
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// NewClientHandler returns a stats.Handler which can be used with grpc.WithStatsHandler to add // tracing to a gRPC client. The gRPC method name is used as the span name and by default the only // tags are the gRPC status code if the call fails.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/middleware/grpc/client.go#L47-L55
train
openzipkin/zipkin-go
reporter/log/log.go
NewReporter
func NewReporter(l *log.Logger) reporter.Reporter { if l == nil { // use standard type of log setup l = log.New(os.Stderr, "", log.LstdFlags) } return &logReporter{ logger: l, } }
go
func NewReporter(l *log.Logger) reporter.Reporter { if l == nil { // use standard type of log setup l = log.New(os.Stderr, "", log.LstdFlags) } return &logReporter{ logger: l, } }
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// NewReporter returns a new log reporter.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/log/log.go#L37-L45
train
openzipkin/zipkin-go
reporter/log/log.go
Send
func (r *logReporter) Send(s model.SpanModel) { if b, err := json.MarshalIndent(s, "", " "); err == nil { r.logger.Printf("%s:\n%s\n\n", time.Now(), string(b)) } }
go
func (r *logReporter) Send(s model.SpanModel) { if b, err := json.MarshalIndent(s, "", " "); err == nil { r.logger.Printf("%s:\n%s\n\n", time.Now(), string(b)) } }
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// Send outputs a span to the Go logger.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/log/log.go#L48-L52
train
openzipkin/zipkin-go
context.go
NewContext
func NewContext(ctx context.Context, s Span) context.Context { return context.WithValue(ctx, spanKey, s) }
go
func NewContext(ctx context.Context, s Span) context.Context { return context.WithValue(ctx, spanKey, s) }
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// NewContext stores a Zipkin Span into Go's context propagation mechanism.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/context.go#L46-L48
train
openzipkin/zipkin-go
reporter/http/http.go
Timeout
func Timeout(duration time.Duration) ReporterOption { return func(r *httpReporter) { r.client.Timeout = duration } }
go
func Timeout(duration time.Duration) ReporterOption { return func(r *httpReporter) { r.client.Timeout = duration } }
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// Timeout sets maximum timeout for http request.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/http/http.go#L173-L175
train
openzipkin/zipkin-go
reporter/http/http.go
BatchInterval
func BatchInterval(d time.Duration) ReporterOption { return func(r *httpReporter) { r.batchInterval = d } }
go
func BatchInterval(d time.Duration) ReporterOption { return func(r *httpReporter) { r.batchInterval = d } }
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// BatchInterval sets the maximum duration we will buffer traces before // emitting them to the collector. The default batch interval is 1 second.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/http/http.go#L191-L193
train
openzipkin/zipkin-go
reporter/http/http.go
Client
func Client(client *http.Client) ReporterOption { return func(r *httpReporter) { r.client = client } }
go
func Client(client *http.Client) ReporterOption { return func(r *httpReporter) { r.client = client } }
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// Client sets a custom http client to use.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/http/http.go#L196-L198
train
openzipkin/zipkin-go
middleware/http/server.go
NewServerMiddleware
func NewServerMiddleware(t *zipkin.Tracer, options ...ServerOption) func(http.Handler) http.Handler { return func(next http.Handler) http.Handler { h := &handler{ tracer: t, next: next, } for _, option := range options { option(h) } return h } }
go
func NewServerMiddleware(t *zipkin.Tracer, options ...ServerOption) func(http.Handler) http.Handler { return func(next http.Handler) http.Handler { h := &handler{ tracer: t, next: next, } for _, option := range options { option(h) } return h } }
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// NewServerMiddleware returns a http.Handler middleware with Zipkin tracing.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/middleware/http/server.go#L74-L85
train
openzipkin/zipkin-go
proto/v2/decode_proto.go
ParseSpans
func ParseSpans(protoBlob []byte, debugWasSet bool) (zss []*zipkinmodel.SpanModel, err error) { var listOfSpans ListOfSpans if err := proto.Unmarshal(protoBlob, &listOfSpans); err != nil { return nil, err } for _, zps := range listOfSpans.Spans { zms, err := protoSpanToModelSpan(zps, debugWasSet) if err != nil { return zss, err } zss = append(zss, zms) } return zss, nil }
go
func ParseSpans(protoBlob []byte, debugWasSet bool) (zss []*zipkinmodel.SpanModel, err error) { var listOfSpans ListOfSpans if err := proto.Unmarshal(protoBlob, &listOfSpans); err != nil { return nil, err } for _, zps := range listOfSpans.Spans { zms, err := protoSpanToModelSpan(zps, debugWasSet) if err != nil { return zss, err } zss = append(zss, zms) } return zss, nil }
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// ParseSpans parses zipkinmodel.SpanModel values from data serialized by Protobuf3. // debugWasSet is a boolean that toggles the Debug field of each Span. Its value // is usually retrieved from the transport headers when the "X-B3-Flags" header has a value of 1.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/proto/v2/decode_proto.go#L35-L48
train
openzipkin/zipkin-go
proto/v2/encode_proto.go
Serialize
func (SpanSerializer) Serialize(sms []*zipkinmodel.SpanModel) (protoBlob []byte, err error) { var listOfSpans ListOfSpans for _, sm := range sms { sp, err := modelSpanToProtoSpan(sm) if err != nil { return nil, err } listOfSpans.Spans = append(listOfSpans.Spans, sp) } return proto.Marshal(&listOfSpans) }
go
func (SpanSerializer) Serialize(sms []*zipkinmodel.SpanModel) (protoBlob []byte, err error) { var listOfSpans ListOfSpans for _, sm := range sms { sp, err := modelSpanToProtoSpan(sm) if err != nil { return nil, err } listOfSpans.Spans = append(listOfSpans.Spans, sp) } return proto.Marshal(&listOfSpans) }
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// Serialize takes an array of zipkin SpanModel objects and serializes it to a protobuf blob.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/proto/v2/encode_proto.go#L32-L44
train
openzipkin/zipkin-go
model/span.go
MarshalJSON
func (s SpanModel) MarshalJSON() ([]byte, error) { type Alias SpanModel var timestamp int64 if !s.Timestamp.IsZero() { if s.Timestamp.Unix() < 1 { // Zipkin does not allow Timestamps before Unix epoch return nil, ErrValidTimestampRequired } timestamp = s.Timestamp.Round(time.Microsecond).UnixNano() / 1e3 } if s.Duration < time.Microsecond { if s.Duration < 0 { // negative duration is not allowed and signals a timing logic error return nil, ErrValidDurationRequired } else if s.Duration > 0 { // sub microsecond durations are reported as 1 microsecond s.Duration = 1 * time.Microsecond } } else { // Duration will be rounded to nearest microsecond representation. // // NOTE: Duration.Round() is not available in Go 1.8 which we still support. // To handle microsecond resolution rounding we'll add 500 nanoseconds to // the duration. When truncated to microseconds in the call to marshal, it // will be naturally rounded. See TestSpanDurationRounding in span_test.go s.Duration += 500 * time.Nanosecond } if s.LocalEndpoint.Empty() { s.LocalEndpoint = nil } if s.RemoteEndpoint.Empty() { s.RemoteEndpoint = nil } return json.Marshal(&struct { T int64 `json:"timestamp,omitempty"` D int64 `json:"duration,omitempty"` Alias }{ T: timestamp, D: s.Duration.Nanoseconds() / 1e3, Alias: (Alias)(s), }) }
go
func (s SpanModel) MarshalJSON() ([]byte, error) { type Alias SpanModel var timestamp int64 if !s.Timestamp.IsZero() { if s.Timestamp.Unix() < 1 { // Zipkin does not allow Timestamps before Unix epoch return nil, ErrValidTimestampRequired } timestamp = s.Timestamp.Round(time.Microsecond).UnixNano() / 1e3 } if s.Duration < time.Microsecond { if s.Duration < 0 { // negative duration is not allowed and signals a timing logic error return nil, ErrValidDurationRequired } else if s.Duration > 0 { // sub microsecond durations are reported as 1 microsecond s.Duration = 1 * time.Microsecond } } else { // Duration will be rounded to nearest microsecond representation. // // NOTE: Duration.Round() is not available in Go 1.8 which we still support. // To handle microsecond resolution rounding we'll add 500 nanoseconds to // the duration. When truncated to microseconds in the call to marshal, it // will be naturally rounded. See TestSpanDurationRounding in span_test.go s.Duration += 500 * time.Nanosecond } if s.LocalEndpoint.Empty() { s.LocalEndpoint = nil } if s.RemoteEndpoint.Empty() { s.RemoteEndpoint = nil } return json.Marshal(&struct { T int64 `json:"timestamp,omitempty"` D int64 `json:"duration,omitempty"` Alias }{ T: timestamp, D: s.Duration.Nanoseconds() / 1e3, Alias: (Alias)(s), }) }
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// MarshalJSON exports our Model into the correct format for the Zipkin V2 API.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/model/span.go#L60-L107
train
openzipkin/zipkin-go
model/span.go
UnmarshalJSON
func (s *SpanModel) UnmarshalJSON(b []byte) error { type Alias SpanModel span := &struct { T uint64 `json:"timestamp,omitempty"` D uint64 `json:"duration,omitempty"` *Alias }{ Alias: (*Alias)(s), } if err := json.Unmarshal(b, &span); err != nil { return err } if s.ID < 1 { return ErrValidIDRequired } if span.T > 0 { s.Timestamp = time.Unix(0, int64(span.T)*1e3) } s.Duration = time.Duration(span.D*1e3) * time.Nanosecond if s.LocalEndpoint.Empty() { s.LocalEndpoint = nil } if s.RemoteEndpoint.Empty() { s.RemoteEndpoint = nil } return nil }
go
func (s *SpanModel) UnmarshalJSON(b []byte) error { type Alias SpanModel span := &struct { T uint64 `json:"timestamp,omitempty"` D uint64 `json:"duration,omitempty"` *Alias }{ Alias: (*Alias)(s), } if err := json.Unmarshal(b, &span); err != nil { return err } if s.ID < 1 { return ErrValidIDRequired } if span.T > 0 { s.Timestamp = time.Unix(0, int64(span.T)*1e3) } s.Duration = time.Duration(span.D*1e3) * time.Nanosecond if s.LocalEndpoint.Empty() { s.LocalEndpoint = nil } if s.RemoteEndpoint.Empty() { s.RemoteEndpoint = nil } return nil }
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// UnmarshalJSON imports our Model from a Zipkin V2 API compatible span // representation.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/model/span.go#L111-L138
train
openzipkin/zipkin-go
tags.go
Set
func (t Tag) Set(s Span, value string) { s.Tag(string(t), value) }
go
func (t Tag) Set(s Span, value string) { s.Tag(string(t), value) }
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// Set a standard Tag with a payload on provided Span.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tags.go#L35-L37
train
openzipkin/zipkin-go
sample.go
NewModuloSampler
func NewModuloSampler(mod uint64) Sampler { if mod < 2 { return AlwaysSample } return func(id uint64) bool { return (id % mod) == 0 } }
go
func NewModuloSampler(mod uint64) Sampler { if mod < 2 { return AlwaysSample } return func(id uint64) bool { return (id % mod) == 0 } }
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// NewModuloSampler provides a generic type Sampler.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/sample.go#L40-L47
train
openzipkin/zipkin-go
tracer.go
NewTracer
func NewTracer(rep reporter.Reporter, opts ...TracerOption) (*Tracer, error) { // set default tracer options t := &Tracer{ defaultTags: make(map[string]string), extractFailurePolicy: ExtractFailurePolicyRestart, sampler: AlwaysSample, generate: idgenerator.NewRandom64(), reporter: rep, localEndpoint: nil, noop: 0, sharedSpans: true, unsampledNoop: false, } // if no reporter was provided we default to noop implementation. if t.reporter == nil { t.reporter = reporter.NewNoopReporter() t.noop = 1 } // process functional options for _, opt := range opts { if err := opt(t); err != nil { return nil, err } } return t, nil }
go
func NewTracer(rep reporter.Reporter, opts ...TracerOption) (*Tracer, error) { // set default tracer options t := &Tracer{ defaultTags: make(map[string]string), extractFailurePolicy: ExtractFailurePolicyRestart, sampler: AlwaysSample, generate: idgenerator.NewRandom64(), reporter: rep, localEndpoint: nil, noop: 0, sharedSpans: true, unsampledNoop: false, } // if no reporter was provided we default to noop implementation. if t.reporter == nil { t.reporter = reporter.NewNoopReporter() t.noop = 1 } // process functional options for _, opt := range opts { if err := opt(t); err != nil { return nil, err } } return t, nil }
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// NewTracer returns a new Zipkin Tracer.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L43-L71
train
openzipkin/zipkin-go
tracer.go
StartSpanFromContext
func (t *Tracer) StartSpanFromContext(ctx context.Context, name string, options ...SpanOption) (Span, context.Context) { if parentSpan := SpanFromContext(ctx); parentSpan != nil { options = append(options, Parent(parentSpan.Context())) } span := t.StartSpan(name, options...) return span, NewContext(ctx, span) }
go
func (t *Tracer) StartSpanFromContext(ctx context.Context, name string, options ...SpanOption) (Span, context.Context) { if parentSpan := SpanFromContext(ctx); parentSpan != nil { options = append(options, Parent(parentSpan.Context())) } span := t.StartSpan(name, options...) return span, NewContext(ctx, span) }
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// StartSpanFromContext creates and starts a span using the span found in // context as parent. If no parent span is found a root span is created.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L75-L81
train
openzipkin/zipkin-go
tracer.go
StartSpan
func (t *Tracer) StartSpan(name string, options ...SpanOption) Span { if atomic.LoadInt32(&t.noop) == 1 { return &noopSpan{} } s := &spanImpl{ SpanModel: model.SpanModel{ Kind: model.Undetermined, Name: name, LocalEndpoint: t.localEndpoint, Annotations: make([]model.Annotation, 0), Tags: make(map[string]string), }, flushOnFinish: true, tracer: t, } // add default tracer tags to span for k, v := range t.defaultTags { s.Tag(k, v) } // handle provided functional options for _, option := range options { option(t, s) } if s.TraceID.Empty() { // create root span s.SpanContext.TraceID = t.generate.TraceID() s.SpanContext.ID = t.generate.SpanID(s.SpanContext.TraceID) } else { // valid parent context found if t.sharedSpans && s.Kind == model.Server { // join span s.Shared = true } else { // regular child span parentID := s.SpanContext.ID s.SpanContext.ParentID = &parentID s.SpanContext.ID = t.generate.SpanID(model.TraceID{}) } } if !s.SpanContext.Debug && s.Sampled == nil { // deferred sampled context found, invoke sampler sampled := t.sampler(s.SpanContext.TraceID.Low) s.SpanContext.Sampled = &sampled if sampled { s.mustCollect = 1 } } else { if s.SpanContext.Debug || *s.Sampled { s.mustCollect = 1 } } if t.unsampledNoop && s.mustCollect == 0 { // trace not being sampled and noop requested return &noopSpan{ SpanContext: s.SpanContext, } } // add start time if s.Timestamp.IsZero() { s.Timestamp = time.Now() } return s }
go
func (t *Tracer) StartSpan(name string, options ...SpanOption) Span { if atomic.LoadInt32(&t.noop) == 1 { return &noopSpan{} } s := &spanImpl{ SpanModel: model.SpanModel{ Kind: model.Undetermined, Name: name, LocalEndpoint: t.localEndpoint, Annotations: make([]model.Annotation, 0), Tags: make(map[string]string), }, flushOnFinish: true, tracer: t, } // add default tracer tags to span for k, v := range t.defaultTags { s.Tag(k, v) } // handle provided functional options for _, option := range options { option(t, s) } if s.TraceID.Empty() { // create root span s.SpanContext.TraceID = t.generate.TraceID() s.SpanContext.ID = t.generate.SpanID(s.SpanContext.TraceID) } else { // valid parent context found if t.sharedSpans && s.Kind == model.Server { // join span s.Shared = true } else { // regular child span parentID := s.SpanContext.ID s.SpanContext.ParentID = &parentID s.SpanContext.ID = t.generate.SpanID(model.TraceID{}) } } if !s.SpanContext.Debug && s.Sampled == nil { // deferred sampled context found, invoke sampler sampled := t.sampler(s.SpanContext.TraceID.Low) s.SpanContext.Sampled = &sampled if sampled { s.mustCollect = 1 } } else { if s.SpanContext.Debug || *s.Sampled { s.mustCollect = 1 } } if t.unsampledNoop && s.mustCollect == 0 { // trace not being sampled and noop requested return &noopSpan{ SpanContext: s.SpanContext, } } // add start time if s.Timestamp.IsZero() { s.Timestamp = time.Now() } return s }
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// StartSpan creates and starts a span.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L84-L153
train
openzipkin/zipkin-go
tracer.go
Extract
func (t *Tracer) Extract(extractor propagation.Extractor) (sc model.SpanContext) { if atomic.LoadInt32(&t.noop) == 1 { return } psc, err := extractor() if psc != nil { sc = *psc } sc.Err = err return }
go
func (t *Tracer) Extract(extractor propagation.Extractor) (sc model.SpanContext) { if atomic.LoadInt32(&t.noop) == 1 { return } psc, err := extractor() if psc != nil { sc = *psc } sc.Err = err return }
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// Extract extracts a SpanContext using the provided Extractor function.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L156-L166
train
openzipkin/zipkin-go
tracer.go
SetNoop
func (t *Tracer) SetNoop(noop bool) { if noop { atomic.CompareAndSwapInt32(&t.noop, 0, 1) } else { atomic.CompareAndSwapInt32(&t.noop, 1, 0) } }
go
func (t *Tracer) SetNoop(noop bool) { if noop { atomic.CompareAndSwapInt32(&t.noop, 0, 1) } else { atomic.CompareAndSwapInt32(&t.noop, 1, 0) } }
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// SetNoop allows for killswitch behavior. If set to true the tracer will return // noopSpans and all data is dropped. This allows operators to stop tracing in // risk scenarios. Set back to false to resume tracing.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L171-L177
train
openzipkin/zipkin-go
tracer.go
LocalEndpoint
func (t *Tracer) LocalEndpoint() *model.Endpoint { if t.localEndpoint == nil { return nil } ep := *t.localEndpoint return &ep }
go
func (t *Tracer) LocalEndpoint() *model.Endpoint { if t.localEndpoint == nil { return nil } ep := *t.localEndpoint return &ep }
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// LocalEndpoint returns a copy of the currently set local endpoint of the // tracer instance.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/tracer.go#L181-L187
train
openzipkin/zipkin-go
endpoint.go
NewEndpoint
func NewEndpoint(serviceName string, hostPort string) (*model.Endpoint, error) { e := &model.Endpoint{ ServiceName: serviceName, } if hostPort == "" || hostPort == ":0" { if serviceName == "" { // if all properties are empty we should not have an Endpoint object. return nil, nil } return e, nil } if strings.IndexByte(hostPort, ':') < 0 { hostPort += ":0" } host, port, err := net.SplitHostPort(hostPort) if err != nil { return nil, err } p, err := strconv.ParseUint(port, 10, 16) if err != nil { return nil, err } e.Port = uint16(p) addrs, err := net.LookupIP(host) if err != nil { return nil, err } for i := range addrs { addr := addrs[i].To4() if addr == nil { // IPv6 - 16 bytes if e.IPv6 == nil { e.IPv6 = addrs[i].To16() } } else { // IPv4 - 4 bytes if e.IPv4 == nil { e.IPv4 = addr } } if e.IPv4 != nil && e.IPv6 != nil { // Both IPv4 & IPv6 have been set, done... break } } return e, nil }
go
func NewEndpoint(serviceName string, hostPort string) (*model.Endpoint, error) { e := &model.Endpoint{ ServiceName: serviceName, } if hostPort == "" || hostPort == ":0" { if serviceName == "" { // if all properties are empty we should not have an Endpoint object. return nil, nil } return e, nil } if strings.IndexByte(hostPort, ':') < 0 { hostPort += ":0" } host, port, err := net.SplitHostPort(hostPort) if err != nil { return nil, err } p, err := strconv.ParseUint(port, 10, 16) if err != nil { return nil, err } e.Port = uint16(p) addrs, err := net.LookupIP(host) if err != nil { return nil, err } for i := range addrs { addr := addrs[i].To4() if addr == nil { // IPv6 - 16 bytes if e.IPv6 == nil { e.IPv6 = addrs[i].To16() } } else { // IPv4 - 4 bytes if e.IPv4 == nil { e.IPv4 = addr } } if e.IPv4 != nil && e.IPv6 != nil { // Both IPv4 & IPv6 have been set, done... break } } return e, nil }
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// NewEndpoint creates a new endpoint given the provided serviceName and // hostPort.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/endpoint.go#L27-L80
train
openzipkin/zipkin-go
reporter/kafka/kafka.go
Producer
func Producer(p sarama.AsyncProducer) ReporterOption { return func(c *kafkaReporter) { c.producer = p } }
go
func Producer(p sarama.AsyncProducer) ReporterOption { return func(c *kafkaReporter) { c.producer = p } }
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// Producer sets the producer used to produce to Kafka.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/reporter/kafka/kafka.go#L56-L60
train
openzipkin/zipkin-go
middleware/grpc/server.go
NewServerHandler
func NewServerHandler(tracer *zipkin.Tracer, options ...ServerOption) stats.Handler { c := &serverHandler{ tracer: tracer, } for _, option := range options { option(c) } return c }
go
func NewServerHandler(tracer *zipkin.Tracer, options ...ServerOption) stats.Handler { c := &serverHandler{ tracer: tracer, } for _, option := range options { option(c) } return c }
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// NewServerHandler returns a stats.Handler which can be used with grpc.WithStatsHandler to add // tracing to a gRPC server. The gRPC method name is used as the span name and by default the only // tags are the gRPC status code if the call fails. Use ServerTags to add additional tags that // should be applied to all spans.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/middleware/grpc/server.go#L46-L54
train
openzipkin/zipkin-go
span_options.go
Kind
func Kind(kind model.Kind) SpanOption { return func(t *Tracer, s *spanImpl) { s.Kind = kind } }
go
func Kind(kind model.Kind) SpanOption { return func(t *Tracer, s *spanImpl) { s.Kind = kind } }
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// Kind sets the kind of the span being created..
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/span_options.go#L28-L32
train
openzipkin/zipkin-go
span_options.go
Parent
func Parent(sc model.SpanContext) SpanOption { return func(t *Tracer, s *spanImpl) { if sc.Err != nil { // encountered an extraction error switch t.extractFailurePolicy { case ExtractFailurePolicyRestart: case ExtractFailurePolicyError: panic(s.SpanContext.Err) case ExtractFailurePolicyTagAndRestart: s.Tags["error.extract"] = sc.Err.Error() default: panic(ErrInvalidExtractFailurePolicy) } /* don't use provided SpanContext, but restart trace */ return } s.SpanContext = sc } }
go
func Parent(sc model.SpanContext) SpanOption { return func(t *Tracer, s *spanImpl) { if sc.Err != nil { // encountered an extraction error switch t.extractFailurePolicy { case ExtractFailurePolicyRestart: case ExtractFailurePolicyError: panic(s.SpanContext.Err) case ExtractFailurePolicyTagAndRestart: s.Tags["error.extract"] = sc.Err.Error() default: panic(ErrInvalidExtractFailurePolicy) } /* don't use provided SpanContext, but restart trace */ return } s.SpanContext = sc } }
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// Parent will use provided SpanContext as parent to the span being created.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/span_options.go#L35-L53
train
openzipkin/zipkin-go
span_options.go
StartTime
func StartTime(start time.Time) SpanOption { return func(t *Tracer, s *spanImpl) { s.Timestamp = start } }
go
func StartTime(start time.Time) SpanOption { return func(t *Tracer, s *spanImpl) { s.Timestamp = start } }
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// StartTime uses a given start time for the span being created.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/span_options.go#L56-L60
train
openzipkin/zipkin-go
span_options.go
RemoteEndpoint
func RemoteEndpoint(e *model.Endpoint) SpanOption { return func(t *Tracer, s *spanImpl) { s.RemoteEndpoint = e } }
go
func RemoteEndpoint(e *model.Endpoint) SpanOption { return func(t *Tracer, s *spanImpl) { s.RemoteEndpoint = e } }
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// RemoteEndpoint sets the remote endpoint of the span being created.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/span_options.go#L63-L67
train
openzipkin/zipkin-go
span_options.go
Tags
func Tags(tags map[string]string) SpanOption { return func(t *Tracer, s *spanImpl) { for k, v := range tags { s.Tags[k] = v } } }
go
func Tags(tags map[string]string) SpanOption { return func(t *Tracer, s *spanImpl) { for k, v := range tags { s.Tags[k] = v } } }
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// Tags sets initial tags for the span being created. If default tracer tags // are present they will be overwritten on key collisions.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/span_options.go#L71-L77
train
openzipkin/zipkin-go
model/traceid.go
String
func (t TraceID) String() string { if t.High == 0 { return fmt.Sprintf("%016x", t.Low) } return fmt.Sprintf("%016x%016x", t.High, t.Low) }
go
func (t TraceID) String() string { if t.High == 0 { return fmt.Sprintf("%016x", t.Low) } return fmt.Sprintf("%016x%016x", t.High, t.Low) }
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// String outputs the 128-bit traceID as hex string.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/model/traceid.go#L35-L40
train
openzipkin/zipkin-go
model/traceid.go
TraceIDFromHex
func TraceIDFromHex(h string) (t TraceID, err error) { if len(h) > 16 { if t.High, err = strconv.ParseUint(h[0:len(h)-16], 16, 64); err != nil { return } t.Low, err = strconv.ParseUint(h[len(h)-16:], 16, 64) return } t.Low, err = strconv.ParseUint(h, 16, 64) return }
go
func TraceIDFromHex(h string) (t TraceID, err error) { if len(h) > 16 { if t.High, err = strconv.ParseUint(h[0:len(h)-16], 16, 64); err != nil { return } t.Low, err = strconv.ParseUint(h[len(h)-16:], 16, 64) return } t.Low, err = strconv.ParseUint(h, 16, 64) return }
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// TraceIDFromHex returns the TraceID from a hex string.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/model/traceid.go#L43-L53
train
openzipkin/zipkin-go
model/traceid.go
MarshalJSON
func (t TraceID) MarshalJSON() ([]byte, error) { return []byte(fmt.Sprintf("%q", t.String())), nil }
go
func (t TraceID) MarshalJSON() ([]byte, error) { return []byte(fmt.Sprintf("%q", t.String())), nil }
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// MarshalJSON custom JSON serializer to export the TraceID in the required // zero padded hex representation.
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a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962
https://github.com/openzipkin/zipkin-go/blob/a9beb3b3ee82f8d9336022a1c2ed7c1f4f5d6962/model/traceid.go#L57-L59
train