QUESTION 4: Design Patterns and UML You have been tasked to improve your organisation's security. Only authorized users are al- lowed to access SensitiveData on the system and access can only be done through the Datastorage class. You know that by applying the Proxy design pattern you can solve the task. class SensitiveData {/* code omitted */} 1 2 enum EEmployeeType 4 { 3 ADMIN, // Should be allowed to access SensitiveData CEO, // Should be allowed to access SensitiveData CLERK // Not allowed to access SensitiveData 6 7 8 } 10 public class DataStorage 11 { public SensitiveData getData(EEmployeeType employee); 12 13 } (a) Provide a UML class diagram for the Proxy design pattern applied to the problem stated above. (b) Provide Java source code for the proxy class' getData method.
QUESTION 4: Design Patterns and UML You have been tasked to improve your organisation's security. Only authorized users are al- lowed to access SensitiveData on the system and access can only be done through the Datastorage class. You know that by applying the Proxy design pattern you can solve the task. class SensitiveData {/* code omitted */} 1 2 enum EEmployeeType 4 { 3 ADMIN, // Should be allowed to access SensitiveData CEO, // Should be allowed to access SensitiveData CLERK // Not allowed to access SensitiveData 6 7 8 } 10 public class DataStorage 11 { public SensitiveData getData(EEmployeeType employee); 12 13 } (a) Provide a UML class diagram for the Proxy design pattern applied to the problem stated above. (b) Provide Java source code for the proxy class' getData method.
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Hi please assist with a and b
please explain in detail.
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Transcribed Image Text:QUESTION 4: Design Patterns and UML
You have been tasked to improve your organisation's security. Only authorized users are al-
lowed to access SensitiveData on the system and access can only be done through the
Datastorage class. You know that by applying the Proxy design pattern you can solve the
task.
1| class SensitiveData {/* code omitted */}
2
enum EEmployeeType
3
4 {
ADMIN, // Should be allowed to access SensitiveData
CEO, // Should be allowed to access SensitiveData
CLERK // Not allowed to access SensitiveData
6
7
8 }
9
10 public class DataStorage
11 {
public SensitiveData getData(EEmployeeType employee);
12
13 }
(a) Provide a UML class diagram for the Proxy design pattern applied to the problem stated
above.
(b) Provide Java source code for the proxy class' getData method.
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