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Hashring: return Hostinfo struct instead of string (cadence-workflow#…
…4708) * Set TChannel port to Ringpop labels
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| Original file line number | Diff line number | Diff line change |
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| // The MIT License (MIT) | ||
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| // Copyright (c) 2017-2020 Uber Technologies Inc. | ||
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| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
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| package membership | ||
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| import ( | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
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| // PortMap is a map of port names to port numbers. | ||
| type PortMap map[string]uint16 | ||
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| // HostInfo is a type that contains the info about a cadence host | ||
| type HostInfo struct { | ||
| addr string // ip:port | ||
| identity string | ||
| portMap PortMap // ports host is listening to | ||
| } | ||
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| // NewHostInfo creates a new HostInfo instance | ||
| func NewHostInfo(addr string) HostInfo { | ||
| return HostInfo{ | ||
| addr: addr, | ||
| } | ||
| } | ||
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| // String formats a PortMap into a string of name:port pairs | ||
| func (m PortMap) String() string { | ||
| res := make([]string, 0, len(m)) | ||
| for name, port := range m { | ||
| res = append(res, fmt.Sprintf("%s:%d", name, port)) | ||
| } | ||
| return strings.Join(res, ", ") | ||
| } | ||
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| // NewDetailedHostInfo creates a new HostInfo instance with identity and portmap information | ||
| func NewDetailedHostInfo(addr string, identity string, portMap PortMap) HostInfo { | ||
| return HostInfo{ | ||
| addr: addr, | ||
| identity: identity, | ||
| portMap: portMap, | ||
| } | ||
| } | ||
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| // GetAddress returns the ip:port address | ||
| func (hi HostInfo) GetAddress() string { | ||
| return hi.addr | ||
| } | ||
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| // Identity implements ringpop's Membership interface | ||
| func (hi HostInfo) Identity() string { | ||
| // for now we just use the address as the identity | ||
| return hi.addr | ||
| } | ||
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| // Label is a noop function to conform to ringpop hashring member interface | ||
| func (hi HostInfo) Label(key string) (value string, has bool) { | ||
| return "", false | ||
| } | ||
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| // SetLabel is a noop function to conform to ringpop hashring member interface | ||
| func (hi HostInfo) SetLabel(key string, value string) { | ||
| } | ||
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| // String will return a human-readable host details | ||
| func (hi HostInfo) String() string { | ||
| return fmt.Sprintf("addr: %s, identity: %s, portMap: %s", hi.addr, hi.identity, hi.portMap) | ||
| } |
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