github.com/deemoprobe/k8s-first-commit@v0.0.0-20230430165612-a541f1982be3/pkg/registry/memory_registry.go (about)

     1  /*
     2  Copyright 2014 Google Inc. All rights reserved.
     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  package registry
    17  
    18  import (
    19  	. "github.com/GoogleCloudPlatform/kubernetes/pkg/api"
    20  )
    21  
    22  // An implementation of TaskRegistry and ControllerRegistry that is backed by memory
    23  // Mainly used for testing.
    24  type MemoryRegistry struct {
    25  	taskData       map[string]Task
    26  	controllerData map[string]ReplicationController
    27  	serviceData    map[string]Service
    28  }
    29  
    30  func MakeMemoryRegistry() *MemoryRegistry {
    31  	return &MemoryRegistry{
    32  		taskData:       map[string]Task{},
    33  		controllerData: map[string]ReplicationController{},
    34  		serviceData:    map[string]Service{},
    35  	}
    36  }
    37  
    38  func (registry *MemoryRegistry) ListTasks(labelQuery *map[string]string) ([]Task, error) {
    39  	result := []Task{}
    40  	for _, value := range registry.taskData {
    41  		if LabelsMatch(value, labelQuery) {
    42  			result = append(result, value)
    43  		}
    44  	}
    45  	return result, nil
    46  }
    47  
    48  func (registry *MemoryRegistry) GetTask(taskID string) (*Task, error) {
    49  	task, found := registry.taskData[taskID]
    50  	if found {
    51  		return &task, nil
    52  	} else {
    53  		return nil, nil
    54  	}
    55  }
    56  
    57  func (registry *MemoryRegistry) CreateTask(machine string, task Task) error {
    58  	registry.taskData[task.ID] = task
    59  	return nil
    60  }
    61  
    62  func (registry *MemoryRegistry) DeleteTask(taskID string) error {
    63  	delete(registry.taskData, taskID)
    64  	return nil
    65  }
    66  
    67  func (registry *MemoryRegistry) UpdateTask(task Task) error {
    68  	registry.taskData[task.ID] = task
    69  	return nil
    70  }
    71  
    72  func (registry *MemoryRegistry) ListControllers() ([]ReplicationController, error) {
    73  	result := []ReplicationController{}
    74  	for _, value := range registry.controllerData {
    75  		result = append(result, value)
    76  	}
    77  	return result, nil
    78  }
    79  
    80  func (registry *MemoryRegistry) GetController(controllerID string) (*ReplicationController, error) {
    81  	controller, found := registry.controllerData[controllerID]
    82  	if found {
    83  		return &controller, nil
    84  	} else {
    85  		return nil, nil
    86  	}
    87  }
    88  
    89  func (registry *MemoryRegistry) CreateController(controller ReplicationController) error {
    90  	registry.controllerData[controller.ID] = controller
    91  	return nil
    92  }
    93  
    94  func (registry *MemoryRegistry) DeleteController(controllerId string) error {
    95  	delete(registry.controllerData, controllerId)
    96  	return nil
    97  }
    98  
    99  func (registry *MemoryRegistry) UpdateController(controller ReplicationController) error {
   100  	registry.controllerData[controller.ID] = controller
   101  	return nil
   102  }
   103  
   104  func (registry *MemoryRegistry) ListServices() (ServiceList, error) {
   105  	var list []Service
   106  	for _, value := range registry.serviceData {
   107  		list = append(list, value)
   108  	}
   109  	return ServiceList{Items: list}, nil
   110  }
   111  
   112  func (registry *MemoryRegistry) CreateService(svc Service) error {
   113  	registry.serviceData[svc.ID] = svc
   114  	return nil
   115  }
   116  
   117  func (registry *MemoryRegistry) GetService(name string) (*Service, error) {
   118  	svc, found := registry.serviceData[name]
   119  	if found {
   120  		return &svc, nil
   121  	} else {
   122  		return nil, nil
   123  	}
   124  }
   125  
   126  func (registry *MemoryRegistry) DeleteService(name string) error {
   127  	delete(registry.serviceData, name)
   128  	return nil
   129  }
   130  
   131  func (registry *MemoryRegistry) UpdateService(svc Service) error {
   132  	return registry.CreateService(svc)
   133  }
   134  
   135  func (registry *MemoryRegistry) UpdateEndpoints(e Endpoints) error {
   136  	return nil
   137  }