View GitHub Repository Simple-Storage

Schedule Inspection
Subscribe
Passed
Push — master ( ea6aae...edf917 )
by Endre
53s queued 11s
created

DataStorage.attach   A

↳ Parent: DataStorage

Complexity

Conditions 1

Size

Total Lines 7
Code Lines 7

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 1

Importance

Changes 0
Metric Value
eloc 7
dl 0
loc 7
c 0
b 0
f 0
ccs 5
cts 5
cp 1
rs 10
cc 1
crap 1
1 
import {IObserverAdapter, IOnChangeCallback} from '@enbock/state-value-observer/Observer';
2 1 
import StorageAdapter from './StorageAdapter';
3 

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    4
                

                                    
                                                    
                
                
                
export interface IAdapterDictionary {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    5
                

                                    
                                                    
                
                
                
  [index: string]: StorageAdapter<any>

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    6
                

                                    
                                                    
                
                
                
}

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    7
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    8
                

                                    
                             1                         
                
                
                
export default class DataStorage {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    9
                

                                    
                                                    
                
                
                
  protected domain: string;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    10
                

                                    
                                                    
                
                
                
  protected storage: Storage;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    11
                

                                    
                                                    
                
                
                
  protected adapters: IAdapterDictionary;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    12
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    13
                

                                    
                                                    
                
                
                
  constructor(domain: string, storage: Storage) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    14
                

                                    
                             3                         
                
                
                
    this.domain = domain;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    15
                

                                    
                             3                         
                
                
                
    this.storage = storage;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    16
                

                                    
                             3                         
                
                
                
    this.adapters = {};

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    17
                

                                    
                                                    
                
                
                
  }

            


            
                                                                        
                            
            
                                    
            
            

                
                    18
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    19
                

                                    
                             1                         
                
                
                
  attach<T>(key: string, adapter: IObserverAdapter<T>): StorageAdapter<T> {

            


            
                                                                        
                            
            
                                    
            
            

                
                    20
                

                                    
                             1                         
                
                
                
    const callback: IOnChangeCallback<T> = (newValue: T) => this.updateStorage(key, newValue);

            


            
                                                                        
                            
            
                                    
            
            

                
                    21
                

                                    
                             1                         
                
                
                
    const storageAdapter: StorageAdapter<T> = new StorageAdapter<T>(adapter, callback);

            


            
                                                                        
                            
            
                                    
            
            

                
                    22
                

                                    
                             1                         
                
                
                
    this.adapters[key] = storageAdapter;

            


            
                                                                        
                            
            
                                    
            
            

                
                    23
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    24
                

                                    
                             1                         
                
                
                
    return storageAdapter;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    25
                

                                    
                                                    
                
                
                
  }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    26
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    27
                

                                    
                             1                         
                
                
                
  loadData<T>(key: string, initialValue: T): T {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    28
                

                                    
                             2                         
                
                
                
    const initJSON: string | null = this.storage.getItem(this.domain + '::' + key);

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    29
                

                                    
                             2                         
                
                
                
    let data: T = initialValue;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    30
                

                                    
                             2                         
                
                
                
    if (initJSON != null) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    31
                

                                    
                             1                         
                
                
                
      data = JSON.parse(initJSON) as T;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    32
                

                                    
                                                    
                
                
                
    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    33
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    34
                

                                    
                             2                         
                
                
                
    return data;

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    35
                

                                    
                                                    
                
                
                
  }

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    36
                

                                    
                                                    
                
                
                

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    37
                

                                    
                             1                         
                
                
                
  protected updateStorage<T>(key: string, newValue: T) {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    38
                

                                    
                             1                         
                
                
                
    this.storage.setItem(this.domain + '::' + key, JSON.stringify(newValue));

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    39
                

                                    
                                                    
                
                
                
  }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    40
                

                                    
                                                    
                
                
                
}

            


            
                                                        
            
                                    
            
            

                
                    41