Created
May 9, 2023 17:47
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class Target: | |
""" | |
The Target defines the domain-specific interface used by the client code. | |
""" | |
def request(self) -> str: | |
return "Target: The default target's behavior." | |
class Adaptee: | |
""" | |
The Adaptee contains some useful behavior, but its interface is incompatible | |
with the existing client code. The Adaptee needs some adaptation before the | |
client code can use it. | |
""" | |
def specific_request(self) -> str: | |
return ".eetpadA eht fo roivaheb laicepS" | |
class Adapter(Target, Adaptee): | |
""" | |
The Adapter makes the Adaptee's interface compatible with the Target's | |
interface via multiple inheritance. | |
""" | |
def request(self) -> str: | |
return f"Adapter: (TRANSLATED) {self.specific_request()[::-1]}" | |
def client_code(target: "Target") -> None: | |
""" | |
The client code supports all classes that follow the Target interface. | |
""" | |
print(target.request(), end="") | |
if __name__ == "__main__": | |
print("Client: I can work just fine with the Target objects:") | |
target = Target() | |
client_code(target) | |
print("\n") | |
adaptee = Adaptee() | |
print("Client: The Adaptee class has a weird interface. " | |
"See, I don't understand it:") | |
print(f"Adaptee: {adaptee.specific_request()}", end="\n\n") | |
print("Client: But I can work with it via the Adapter:") | |
adapter = Adapter() | |
client_code(adapter) |
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