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Add an endpoint for getting WAN coordinates

This commit is contained in:
Derek Chiang 2015-05-13 21:43:00 -04:00 committed by James Phillips
parent 69003310ca
commit 1929b1dabf
1 changed files with 10 additions and 5 deletions
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15
consul/coordinate_endpoint.go
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@ -15,7 +15,7 @@ type Coordinate struct {
updateBufferLock sync.Mutex
}
// Get returns the the LAN coordinate of a node.
// GetLAN returns the the LAN coordinate of a node.
func (c *Coordinate) GetLAN(args *structs.NodeSpecificRequest, reply *structs.IndexedCoordinate) error {
if done, err := c.srv.forward("Coordinate.GetLAN", args, args, reply); done {
return err
@ -37,15 +37,20 @@ func (c *Coordinate) GetLAN(args *structs.NodeSpecificRequest, reply *structs.In
})
}
// Get returns the the WAN coordinate of a datacenter.
func (c *Coordinate) GetWAN(args *structs.DCSpecificRequest, reply *coordinate.Coordinate) error {
// GetWAN returns the WAN coordinates of the servers in a given datacenter.
//
// Note that the server does not necessarily know about *all* servers in the given datacenter.
// It just returns the coordinates of those that it knows.
func (c *Coordinate) GetWAN(args *structs.DCSpecificRequest, reply *[]*coordinate.Coordinate) error {
if args.Datacenter == c.srv.config.Datacenter {
*reply = *c.srv.GetWANCoordinate()
*reply = make([]*coordinate.Coordinate, 1)
(*reply)[0] = c.srv.GetWANCoordinate()
} else {
servers := c.srv.remoteConsuls[args.Datacenter] // servers in the specified DC
*reply = make([]*coordinate.Coordinate, 0)
for i := 0; i < len(servers); i++ {
if coord := c.srv.serfWAN.GetCachedCoordinate(servers[i].Name); coord != nil {
*reply = *coord
*reply = append(*reply, coord)
}
}
}