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option.go
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/
option.go
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// Copyright 2024 justlorain
//
// 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
//
// http://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 ezcache
import (
"hash/crc32"
)
type Option func(o *Options)
type Options struct {
BasePath string
ReplicationFactor int
HashFunc HashFunc
}
var defaultOptions = Options{
BasePath: "/_ezcache",
ReplicationFactor: 10,
HashFunc: crc32.ChecksumIEEE,
}
func newOptions(opts ...Option) *Options {
options := &Options{
BasePath: defaultOptions.BasePath,
ReplicationFactor: defaultOptions.ReplicationFactor,
HashFunc: defaultOptions.HashFunc,
}
options.apply(opts...)
return options
}
func (o *Options) apply(opts ...Option) {
for _, opt := range opts {
opt(o)
}
}
// WithBasePath used to define base path of server
func WithBasePath(path string) Option {
return func(o *Options) {
o.BasePath = path
}
}
// WithReplicationFactor used to define consistent hash replication factor
func WithReplicationFactor(factor int) Option {
return func(o *Options) {
o.ReplicationFactor = factor
}
}
// WithHashFunc used to define hash func used by consistent hash
func WithHashFunc(fn HashFunc) Option {
return func(o *Options) {
o.HashFunc = fn
}
}