View GitHub Repository permacoop

Schedule Inspection
Subscribe
Passed
Pull Request — master (#105)
by Mathieu
17:05
created

DownloadFileQueryHandler.execute   A

↳ Parent: DownloadFileQueryHandler

Complexity

Conditions 3

Size

Total Lines 16
Code Lines 14

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 14
dl 0
loc 16
rs 9.7
c 0
b 0
f 0
cc 3
1 
import {Inject} from '@nestjs/common';
2 
import {QueryHandler} from '@nestjs/cqrs';
3 
import {IFileRepository} from 'src/Domain/File/Repository/IFileRepository';
4 
import {DownloadFileQuery} from './DownloadFileQuery';
5 
import {IFileStorage} from 'src/Application/IFileStorage';
6 
import {DownloadedFileView} from '../View/DownloadedFileView';
7 
import {FileNotFoundException} from 'src/Domain/File/Exception/FileNotFoundException';
8 

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    9
                

                                    
                                                    
                
                
                
@QueryHandler(DownloadFileQuery)

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    10
                

                                    
                                                    
                
                
                
export class DownloadFileQueryHandler {

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    11
                

                                    
                                                    
                
                
                
  constructor(

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    12
                

                                    
                                                    
                
                
                
    @Inject('IFileRepository')

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    13
                

                                    
                                                    
                
                
                
    private readonly fileRepository: IFileRepository,

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    14
                

                                    
                                                    
                
                
                
    @Inject('IFileStorage')

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    15
                

                                    
                                                    
                
                
                
    public readonly fileStorage: IFileStorage

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    16
                

                                    
                                                    
                
                
                
  ) {}

            


            
                                                                        
                            
            
                                    
            
            

                
                    17
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    18
                

                                    
                                                    
                
                
                
  public async execute(query: DownloadFileQuery): Promise<DownloadedFileView> {

            


            
                                                                        
                            
            
                                    
            
            

                
                    19
                

                                    
                                                    
                
                
                
    const file = await this.fileRepository.findOneById(query.id);

            


            
                                                                        
                            
            
                                    
            
            

                
                    20
                

                                    
                                                    
                
                
                
    if (!file) {

            


            
                                                                        
                            
            
                                    
            
            

                
                    21
                

                                    
                                                    
                
                
                
      throw new FileNotFoundException();

            


            
                                                                        
                            
            
                                    
            
            

                
                    22
                

                                    
                                                    
                
                
                
    }

            


            
                                                                        
                            
            
                                    
            
            

                
                    23
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    24
                

                                    
                                                    
                
                
                
    const buffer = await this.fileStorage.download(file);

            


            
                                                                        
                            
            
                                    
            
            

                
                    25
                

                                    
                                                    
                
                
                
    if (!buffer) {

            


            
                                                                        
                            
            
                                    
            
            

                
                    26
                

                                    
                                                    
                
                
                
      throw new FileNotFoundException();

            


            
                                                                        
                            
            
                                    
            
            

                
                    27
                

                                    
                                                    
                
                
                
    }

            


            
                                                                        
                            
            
                                    
            
            

                
                    28
                

                                    
                                                    
                
                
                

            


            
                                                                        
                            
            
                                    
            
            

                
                    29
                

                                    
                                                    
                
                
                
    return new DownloadedFileView(

            


            
                                                                        
                            
            
                                    
            
            

                
                    30
                

                                    
                                                    
                
                
                
      file.getOriginalName(),

            


            
                                                                        
                            
            
                                    
            
            

                
                    31
                

                                    
                                                    
                
                
                
      file.getMimeType(),

            


            
                                                                        
                            
            
                                    
            
            

                
                    32
                

                                    
                                                    
                
                
                
      buffer

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    33
                

                                    
                                                    
                
                
                
    );

            


            
                                                                                                            
                            
            
                                    
            
            

                
                    34
                

                                    
                                                    
                
                
                
  }

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
                    35
                

                                    
                                                    
                
                
                
}

            


            
                                                        
            
                                    
            
            

                
                    36