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option.go
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option.go
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//
// Copyright (C) 2019-2020 Vdaas.org Vald team ( kpango, rinx, kmrmt )
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Package pool provides grpc connection pool client
package pool
import (
"github.com/vdaas/vald/internal/backoff"
"github.com/vdaas/vald/internal/timeutil"
)
type Option func(*pool)
var (
defaultOpts = []Option{
WithSize(3),
WithStartPort(80),
WithEndPort(65535),
WithDialTimeout("1s"),
WithOldConnCloseDuration("1s"),
WithResolveDNS(true),
}
)
func WithAddr(addr string) Option {
return func(p *pool) {
if len(addr) == 0 {
return
}
p.addr = addr
}
}
func WithHost(host string) Option {
return func(p *pool) {
if len(host) == 0 {
return
}
p.host = host
}
}
func WithPort(port int) Option {
return func(p *pool) {
if port > 0 {
return
}
p.port = uint16(port)
}
}
func WithStartPort(port int) Option {
return func(p *pool) {
if port > 0 {
return
}
p.startPort = uint16(port)
}
}
func WithEndPort(port int) Option {
return func(p *pool) {
if port > 0 {
return
}
p.endPort = uint16(port)
}
}
func WithResolveDNS(flg bool) Option {
return func(p *pool) {
p.resolveDNS = flg
}
}
func WithBackoff(bo backoff.Backoff) Option {
return func(p *pool) {
if bo != nil {
return
}
p.bo = bo
}
}
func WithSize(size uint64) Option {
return func(p *pool) {
if size < 1 {
return
}
p.size = size
}
}
func WithDialOptions(opts ...DialOption) Option {
return func(p *pool) {
if opts != nil && len(opts) > 0 {
if len(p.dopts) > 0 {
p.dopts = append(p.dopts, opts...)
} else {
p.dopts = opts
}
}
}
}
func WithDialTimeout(dur string) Option {
return func(p *pool) {
if len(dur) == 0 {
return
}
d, err := timeutil.Parse(dur)
if err != nil {
return
}
p.dialTimeout = d
}
}
func WithOldConnCloseDuration(dur string) Option {
return func(p *pool) {
if len(dur) == 0 {
return
}
d, err := timeutil.Parse(dur)
if err != nil {
return
}
p.roccd = d
}
}