Merge pull request #7 from Im-D/question-api

API Interface 구성하기

Author: Dae-Hwa

src/main/java/com/imd/yourvoice/common/CachingBodyPerRequestFilter.java

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+package com.imd.yourvoice.common;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.filter.OncePerRequestFilter;
+import org.springframework.web.util.ContentCachingRequestWrapper;
+import org.springframework.web.util.ContentCachingResponseWrapper;
+
+import javax.servlet.FilterChain;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@Configuration
+public class CachingBodyPerRequestFilter extends OncePerRequestFilter {
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
+        ContentCachingRequestWrapper cachingRequestWrapper = new ContentCachingRequestWrapper(request);
+        ContentCachingResponseWrapper cachingResponseWrapper = new ContentCachingResponseWrapper(response);
+
+        filterChain.doFilter(cachingRequestWrapper, cachingResponseWrapper);
+        cachingResponseWrapper.copyBodyToResponse();
+    }
+}

src/main/java/com/imd/yourvoice/common/CommonExceptionHandler.java

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+package com.imd.yourvoice.common;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.SneakyThrows;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.util.ContentCachingRequestWrapper;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@RestControllerAdvice
+public class CommonExceptionHandler {
+
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    public ResponseDTO<Map<String, Object>> methodArgumentNotValidExceptionHandler(ContentCachingRequestWrapper request) {
+        return ResponseDTO.<Map<String, Object>>builder()
+                .data(getRequestBodyAt(request))
+                .message("Validation Error")
+                .isSuccess("fail")
+                .build();
+    }
+
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    public ResponseDTO<Map<String, Object>> httpMessageNotReadableExceptionHandler(ContentCachingRequestWrapper request) {
+        return ResponseDTO.<Map<String, Object>>builder()
+                .data(getRequestBodyAt(request))
+                .message("UnknownRequestProperties Error")
+                .isSuccess("fail")
+                .build();
+    }
+
+    @SneakyThrows
+    private Map<String, Object> getRequestBodyAt(ContentCachingRequestWrapper request) {
+        return new ObjectMapper().readValue(request.getContentAsByteArray(), HashMap.class);
+    }
+}

src/main/java/com/imd/yourvoice/common/Const.java

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+package com.imd.yourvoice.common;
+
+import java.time.format.DateTimeFormatter;
+
+public class Const {
+    public static final String DATE_TIME_FORMAT_STRING = "yyyy-MM-dd'T'HH:mm:ss";
+    public static final DateTimeFormatter DATE_TIME_FORMATTER = DateTimeFormatter.ISO_LOCAL_DATE_TIME;
+}

src/main/java/com/imd/yourvoice/common/ResponseDTO.java

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+package com.imd.yourvoice.common;
+
+import lombok.*;
+
+@Data
+@Builder
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class ResponseDTO<T> {
+    private T data;
+    private String isSuccess;
+    private String message;
+}

src/main/java/com/imd/yourvoice/question/QuestionController.java

@@ -0,0 +1,21 @@
+package com.imd.yourvoice.question;
+
+import com.imd.yourvoice.common.ResponseDTO;
+import com.imd.yourvoice.question.model.QuestionDTO;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.validation.Valid;
+
+@RestController
+public class QuestionController {
+    @PostMapping("/question")
+    public ResponseDTO<QuestionDTO> createQuestion(@RequestBody @Valid QuestionDTO.CreateRequest questionDTO) {
+        return ResponseDTO.<QuestionDTO>builder()
+                .data(questionDTO.toEntity().toDTO())
+                .isSuccess("success")
+                .message("CREATE SUCCESSFUL")
+                .build();
+    }
+}

src/main/java/com/imd/yourvoice/question/model/Question.java

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+package com.imd.yourvoice.question.model;
+
+import lombok.*;
+import org.hibernate.annotations.GenericGenerator;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+@Builder
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+@Getter
+@ToString
+@Entity
+public class Question {
+    @Id
+    @GeneratedValue(generator = "uuid2")
+    @GenericGenerator(name = "uuid2", strategy = "uuid2")
+    @Column(columnDefinition = "BINARY(16)")
+    private UUID id;
+
+    private Long indexNumber;
+
+    private String contents;
+
+    private String emoji;
+
+    private LocalDateTime createDateTime;
+
+    @OneToMany(mappedBy = "question")
+    private List<QuestionLike> questionLikes;
+
+    public QuestionDTO toDTO() {
+        return QuestionDTO.builder()
+                .id(id)
+                .indexNumber(indexNumber)
+                .contents(contents)
+                .emoji(emoji)
+                .createDateTime(createDateTime)
+                .questionLikeDTOs(questionLikes.stream().map(QuestionLike::toDTO).collect(Collectors.toList()))
+                .build();
+    }
+}

src/main/java/com/imd/yourvoice/question/model/QuestionDTO.java

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+package com.imd.yourvoice.question.model;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
+import lombok.*;
+
+import javax.validation.constraints.NotEmpty;
+import javax.validation.constraints.Size;
+import java.time.LocalDateTime;
+import java.util.Collections;
+import java.util.List;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+import static com.imd.yourvoice.common.Const.*;
+
+@Data
+@Builder
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class QuestionDTO {
+    private UUID id;
+
+    private Long indexNumber;
+
+    private String contents;
+
+    private String emoji;
+
+    @JsonSerialize(using = LocalDateTimeSerializer.class)
+    @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = DATE_TIME_FORMAT_STRING)
+    private LocalDateTime createDateTime;
+
+    private List<QuestionLikeDTO> questionLikeDTOs;
+
+    public Question toEntity() {
+        return Question.builder()
+                .id(id)
+                .indexNumber(indexNumber)
+                .contents(contents)
+                .emoji(emoji)
+                .createDateTime(createDateTime)
+                .questionLikes(questionLikeDTOs.stream().map(QuestionLikeDTO::toEntity).collect(Collectors.toList()))
+                .build();
+    }
+
+    @Data
+    @Builder
+    @NoArgsConstructor(access = AccessLevel.PRIVATE)
+    @AllArgsConstructor(access = AccessLevel.PRIVATE)
+    public static class CreateRequest {
+        @NotEmpty
+        @Size(max = 140)
+        private String contents;
+
+        private String emoji;
+
+        @JsonSerialize(using = LocalDateTimeSerializer.class)
+        @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = DATE_TIME_FORMAT_STRING)
+        private LocalDateTime createDateTime;
+
+        public Question toEntity() {
+            return Question.builder()
+                    .id(null)
+                    .indexNumber(null)
+                    .contents(contents)
+                    .emoji(emoji)
+                    .createDateTime(createDateTime)
+                    .questionLikes(Collections.emptyList())
+                    .build();
+        }
+    }
+}

src/main/java/com/imd/yourvoice/question/model/QuestionLike.java

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+package com.imd.yourvoice.question.model;
+
+import lombok.*;
+
+import javax.persistence.*;
+import java.time.LocalDateTime;
+
+@Builder
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+@Getter
+@ToString
+@Entity
+public class QuestionLike {
+    @Id
+    private Long id;
+
+    @ManyToOne
+    private Question question;
+
+    private LocalDateTime createDateTime;
+
+    public QuestionLikeDTO toDTO() {
+        return QuestionLikeDTO.builder()
+                .id(id)
+                .question(question)
+                .createDateTime(createDateTime)
+                .build();
+    }
+}

src/main/java/com/imd/yourvoice/question/model/QuestionLikeDTO.java

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+package com.imd.yourvoice.question.model;
+
+import lombok.*;
+
+import java.time.LocalDateTime;
+
+@Data
+@Builder
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@AllArgsConstructor(access = AccessLevel.PRIVATE)
+public class QuestionLikeDTO {
+    private Long id;
+    private Question question;
+    private LocalDateTime createDateTime;
+
+    public QuestionLike toEntity() {
+        return QuestionLike.builder()
+                .id(id)
+                .question(question)
+                .createDateTime(createDateTime)
+                .build();
+    }
+}

src/main/resources/common.properties

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+spring.jackson.deserialization.fail-on-unknown-properties=true