dubbo.apache.org/dubbo-go/v3@v3.1.1/common/extension/config_center.go (about)

     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   * contributor license agreements.  See the NOTICE file distributed with
     4   * this work for additional information regarding copyright ownership.
     5   * The ASF licenses this file to You under the Apache License, Version 2.0
     6   * (the "License"); you may not use this file except in compliance with
     7   * the License.  You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package extension
    19  
    20  import (
    21  	"errors"
    22  )
    23  
    24  import (
    25  	"dubbo.apache.org/dubbo-go/v3/common"
    26  	"dubbo.apache.org/dubbo-go/v3/config_center"
    27  )
    28  
    29  var configCenters = make(map[string]func(config *common.URL) (config_center.DynamicConfiguration, error))
    30  
    31  // SetConfigCenter sets the DynamicConfiguration with @name
    32  func SetConfigCenter(name string, v func(*common.URL) (config_center.DynamicConfiguration, error)) {
    33  	configCenters[name] = v
    34  }
    35  
    36  // GetConfigCenter finds the DynamicConfiguration with @name
    37  func GetConfigCenter(name string, config *common.URL) (config_center.DynamicConfiguration, error) {
    38  	configCenterFactory := configCenters[name]
    39  	if configCenterFactory == nil {
    40  		return nil, errors.New("config center for " + name + " is not existing, make sure you have import the package.")
    41  	}
    42  	configCenter, err := configCenterFactory(config)
    43  	if err != nil {
    44  		return nil, err
    45  	}
    46  	return configCenter, nil
    47  }