common/extension/registry_directory.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 extension

import (
	"github.com/apache/dubbo-go/cluster"
	"github.com/apache/dubbo-go/common"
	"github.com/apache/dubbo-go/registry"
)

type registryDirectory func(url *common.URL, registry registry.Registry) (cluster.Directory, error)

var defaultRegistry registryDirectory

// SetDefaultRegistryDirectory sets the default registryDirectory
func SetDefaultRegistryDirectory(v registryDirectory) {
	defaultRegistry = v
}

// GetDefaultRegistryDirectory finds the registryDirectory with url and registry
func GetDefaultRegistryDirectory(config *common.URL, registry registry.Registry) (cluster.Directory, error) {
	if defaultRegistry == nil {
		panic("registry directory is not existing, make sure you have import the package.")
	}
	return defaultRegistry(config, registry)
}