sigs.k8s.io/cluster-api@v1.7.1/cmd/clusterctl/client/alpha/client.go (about)

     1  /*
     2  Copyright 2020 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package alpha
    18  
    19  // Client is the alpha client.
    20  type Client interface {
    21  	Rollout() Rollout
    22  }
    23  
    24  // alphaClient implements Client.
    25  type alphaClient struct {
    26  	rollout Rollout
    27  }
    28  
    29  // ensure alphaClient implements Client.
    30  var _ Client = &alphaClient{}
    31  
    32  // Option is a configuration option supplied to New.
    33  type Option func(*alphaClient)
    34  
    35  // InjectRollout allows to override the rollout implementation to use.
    36  func InjectRollout(rollout Rollout) Option {
    37  	return func(c *alphaClient) {
    38  		c.rollout = rollout
    39  	}
    40  }
    41  
    42  // New returns a Client.
    43  func New(options ...Option) Client {
    44  	return newAlphaClient(options...)
    45  }
    46  
    47  func newAlphaClient(options ...Option) *alphaClient {
    48  	client := &alphaClient{}
    49  	for _, o := range options {
    50  		o(client)
    51  	}
    52  
    53  	// if there is an injected rollout, use it, otherwise use a default one
    54  	if client.rollout == nil {
    55  		client.rollout = newRolloutClient()
    56  	}
    57  
    58  	return client
    59  }
    60  
    61  func (c *alphaClient) Rollout() Rollout {
    62  	return c.rollout
    63  }