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peer.go
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peer.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
// Package registry provides the main glue between services
//
// It wraps micro registry (running services declared to the discovery server) into a more generic registry where all
// actual plugins are self-declared.
package registry
import (
"sync"
"github.com/micro/go-micro/registry"
)
type Peer struct {
address string
hostname string
// List of services associated
lock *sync.RWMutex
register map[string]*registry.Service
}
func NewPeer(address string, nodeMeta ...map[string]string) *Peer {
p := &Peer{
address: address,
lock: &sync.RWMutex{},
register: make(map[string]*registry.Service),
}
if len(nodeMeta) > 0 {
if h, ok := nodeMeta[0][serviceMetaHostname]; ok {
p.hostname = h
}
}
return p
}
// Add returns if the service was already registered
func (p *Peer) Add(c *registry.Service, id string) bool {
p.lock.Lock()
defer p.lock.Unlock()
if _, ok := p.register[id]; ok {
return false
}
p.register[id] = c
return true
}
// Delete returns if the services existed before or not
func (p *Peer) Delete(c *registry.Service, id string) bool {
p.lock.Lock()
defer p.lock.Unlock()
if _, ok := p.register[id]; !ok {
return false
}
delete(p.register, id)
return true
}
func (p *Peer) GetServices(name ...string) []*registry.Service {
p.lock.RLock()
defer p.lock.RUnlock()
var y []*registry.Service
for _, s := range p.register {
if len(name) == 0 || name[0] == s.Name {
y = append(y, s)
}
}
return y
}
func (p *Peer) GetAddress() string {
return p.address
}
func (p *Peer) GetHostname() string {
return p.hostname
}