Created
August 24, 2023 10:45
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package com.example.proto.grpc.exception.message; | |
import com.google.protobuf.Message; | |
import com.google.rpc.LocalizedMessage; | |
/** | |
* エラーメッセージの詳細を扱います | |
*/ | |
public interface DetailMessage { | |
/** | |
* メッセージを返却します | |
* | |
* @return protobuf message class | |
*/ | |
Message getMessage(); | |
/** | |
* protobufのメッセージを直接扱います | |
*/ | |
class RawMessage implements DetailMessage { | |
Message message; | |
RawMessage(Message message) { | |
this.message = message; | |
} | |
@Override | |
public Message getMessage() { | |
return message; | |
} | |
} | |
/** | |
* テンプレート化されたメッセージを扱います | |
*/ | |
interface TemplateMessage extends DetailMessage { | |
Message getMessage(MessageResolver messageResolver); | |
@Override | |
default Message getMessage() { | |
throw new UnsupportedOperationException("Unsupported the retrieval of raw message."); | |
} | |
/** | |
* テンプレート化されたLocalizedMessageを扱います | |
*/ | |
class LocalizedMessageTemplateMessage implements TemplateMessage { | |
String templateMessage; | |
Object[] parameters; | |
LocalizedMessageTemplateMessage(String templateMessage, Object... parameters) { | |
this.templateMessage = templateMessage; | |
this.parameters = parameters; | |
} | |
@Override | |
public Message getMessage(MessageResolver messageResolver) { | |
return LocalizedMessage.newBuilder() | |
.setLocale(messageResolver.getLocale().toString()) | |
.setMessage(messageResolver.getMessage(templateMessage, parameters)) | |
.build(); | |
} | |
} | |
} | |
} |
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