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			26 lines
		
	
	
		
			650 B
		
	
	
	
		
			Dart
		
	
			
		
		
	
	
			26 lines
		
	
	
		
			650 B
		
	
	
	
		
			Dart
		
	
| 
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| import 'dart:io';
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| 
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| abstract class INetworkService {
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|   Future<bool> isHostAvailable(String endpoint);
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| }
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| 
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| class NetworkService implements INetworkService{
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|   @override
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|   Future<bool> isHostAvailable(String endpoint) async {
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|     try {
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|       final result = await InternetAddress.lookup(endpoint.substring(endpoint.indexOf('//')+2).substring(0,endpoint.substring(endpoint.indexOf('//')+2).indexOf('/')));
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|       if (result.isNotEmpty && result[0].rawAddress.isNotEmpty) {
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|         return true;
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|       } else{
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|         return false;
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|       }
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|     } on SocketException catch (_) {
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|       return false;
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|     }
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|   }
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| }
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| 
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| class NetworkException implements  Exception {
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| }
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