static_directory.go

// Copyright 2016-2019 hxmhlt
//
// 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 directory

import (
	"github.com/dubbo/go-for-apache-dubbo/common"
	"github.com/dubbo/go-for-apache-dubbo/protocol"
)

type staticDirectory struct {
	BaseDirectory
	invokers []protocol.Invoker
}

func NewStaticDirectory(invokers []protocol.Invoker) *staticDirectory {
	return &staticDirectory{
		BaseDirectory: NewBaseDirectory(&common.URL{}),
		invokers:      invokers,
	}
}

//for-loop invokers ,if all invokers is available ,then it means directory is available
func (dir *staticDirectory) IsAvailable() bool {
	if len(dir.invokers) == 0 {
		return false
	}
	for _, invoker := range dir.invokers {
		if !invoker.IsAvailable() {
			return false
		}
	}
	return true
}

func (dir *staticDirectory) List(invocation protocol.Invocation) []protocol.Invoker {
	//TODO:Here should add router
	return dir.invokers
}

func (dir *staticDirectory) Destroy() {
	dir.BaseDirectory.Destroy(func() {
		for _, ivk := range dir.invokers {
			ivk.Destroy()
		}
		dir.invokers = []protocol.Invoker{}
	})
}