[4기 유원우] Shorten URL 과제 PR입니다.

short-url/.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/macos,intellij+iml,java,gradle
+# Edit at https://www.toptal.com/developers/gitignore?templates=macos,intellij+iml,java,gradle
+
+### Intellij+iml ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
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+# User-specific stuff
+.idea/**/workspace.xml
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+.idea/**/usage.statistics.xml
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+.idea/**/shelf
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+# AWS User-specific
+.idea/**/aws.xml
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+# Generated files
+.idea/**/contentModel.xml
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+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
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+.idea/**/uiDesigner.xml
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+# Gradle
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+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
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+### Intellij+iml Patch ###
+# Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-249601023
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+*.iml
+modules.xml
+.idea/misc.xml
+*.ipr
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+### Java ###
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+*.class
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+hs_err_pid*
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+# End of https://www.toptal.com/developers/gitignore/api/macos,intellij+iml,java,gradle
+

short-url/build.gradle

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+plugins {
+    id 'java'
+    id 'org.springframework.boot' version '3.1.4'
+    id 'io.spring.dependency-management' version '1.1.3'
+    id 'org.asciidoctor.jvm.convert' version '3.3.2'
+}
+
+group = 'com.prgrms.wonu606'
+version = '0.0.1-SNAPSHOT'
+
+java {
+    sourceCompatibility = '17'
+}
+
+configurations {
+    compileOnly {
+        extendsFrom annotationProcessor
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+ext {
+    set('snippetsDir', file("build/generated-snippets"))
+}
+
+dependencies {
+    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+    implementation ('commons-validator:commons-validator:1.7') {
+        exclude group: 'commons-collections', module: 'commons-collections'
+    }
+    implementation 'org.apache.commons:commons-collections4:4.4'
+    implementation 'org.apache.commons:commons-lang3:3.0'
+    implementation 'org.mapstruct:mapstruct:1.5.5.Final'
+
+    compileOnly 'org.projectlombok:lombok'
+    compileOnly 'org.mapstruct:mapstruct-processor:1.5.5.Final'
+
+    annotationProcessor 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok-mapstruct-binding:0.2.0'
+    annotationProcessor 'org.mapstruct:mapstruct-processor:1.5.5.Final'
+
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+tasks.named('test') {
+    outputs.dir snippetsDir
+    useJUnitPlatform()
+}
+
+tasks.named('asciidoctor') {
+    inputs.dir snippetsDir
+    dependsOn test
+}

short-url/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

short-url/settings.gradle

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+rootProject.name = 'short-url'

short-url/src/main/java/com/prgrms/wonu606/shorturl/ShortUrlApplication.java

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+package com.prgrms.wonu606.shorturl;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class ShortUrlApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(ShortUrlApplication.class, args);
+    }
+
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/ShortUrlApiController.java

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+package com.prgrms.wonu606.shorturl.controller;
+
+import com.prgrms.wonu606.shorturl.service.UrlShortenerService;
+import java.net.URI;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+public class ShortUrlApiController {
+
+    private final UrlShortenerService urlShortenerService;
+
+    @GetMapping("/{shortUrl}")
+    public ResponseEntity<Void> redirect(@PathVariable String shortUrl) {
+        String originalUrl = urlShortenerService.getOriginalUrlByShortUrl(shortUrl);
+
+        return ResponseEntity
+                .status(HttpStatus.FOUND)
+                .location(URI.create(originalUrl))
+                .build();
+    }
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/UrlShortenerApiController.java

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+package com.prgrms.wonu606.shorturl.controller;
+
+import com.prgrms.wonu606.shorturl.controller.dto.ShortenUrlCreateRequest;
+import com.prgrms.wonu606.shorturl.controller.dto.ShortenUrlCreateResponse;
+import com.prgrms.wonu606.shorturl.controller.mapper.UrlShortenerApiParamMapper;
+import com.prgrms.wonu606.shorturl.controller.mapper.UrlShortenerApiResponseMapper;
+import com.prgrms.wonu606.shorturl.service.UrlShortenerService;
+import com.prgrms.wonu606.shorturl.service.dto.ShortenUrlCreateParam;
+import com.prgrms.wonu606.shorturl.service.dto.ShortenUrlCreateResult;
+import jakarta.validation.Valid;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/shorten-url")
+public class UrlShortenerApiController {
+
+    private final UrlShortenerService urlShortenerService;
+    private final UrlShortenerApiParamMapper paramMapper;
+    private final UrlShortenerApiResponseMapper responseMapper;
+    private final String baseUrl;
+
+    public UrlShortenerApiController(
+            UrlShortenerService urlShortenerService,
+            UrlShortenerApiParamMapper paramMapper,
+            UrlShortenerApiResponseMapper responseMapper,
+            @Value("${url-shortener.base-url}") String baseUrl) {
+        this.urlShortenerService = urlShortenerService;
+        this.paramMapper = paramMapper;
+        this.responseMapper = responseMapper;
+        this.baseUrl = baseUrl;
+    }
+
+    @PostMapping(
+            produces = MediaType.APPLICATION_JSON_VALUE,
+            consumes = MediaType.APPLICATION_JSON_VALUE
+    )
+    public ResponseEntity<ShortenUrlCreateResponse> findOrCreateShortenedUrl(
+            @RequestBody @Valid ShortenUrlCreateRequest request) {
+        ShortenUrlCreateParam param = paramMapper.toShortenUrlCreateParam(request);
+
+        ShortenUrlCreateResult result = urlShortenerService.findOrCreateShortenUrlHash(param);
+
+        HttpStatus httpStatus = result.isNew() ? HttpStatus.CREATED : HttpStatus.OK;
+        return ResponseEntity
+                .status(httpStatus)
+                .body(responseMapper.toShortenUrlCreateResponse(result, baseUrl));
+    }
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/UrlShortenerController.java

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+package com.prgrms.wonu606.shorturl.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class UrlShortenerController {
+
+    @GetMapping("/")
+    public String displayIndexPage() {
+        return "index";
+    }
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/dto/ShortenUrlCreateRequest.java

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+package com.prgrms.wonu606.shorturl.controller.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import org.hibernate.validator.constraints.Length;
+
+public record ShortenUrlCreateRequest(
+        @NotBlank(message = "URL은 null이거나 공백일 수 없습니다.")
+        @Length(max = 2000, message = "URL 길이는 2000자를 넘길 수 없습니다.")
+        String originalUrl) {
+
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/dto/ShortenUrlCreateResponse.java

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+package com.prgrms.wonu606.shorturl.controller.dto;
+
+public record ShortenUrlCreateResponse(String shortenUrl) {
+
+}

short-url/src/main/java/com/prgrms/wonu606/shorturl/controller/mapper/UrlShortenerApiParamMapper.java

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+package com.prgrms.wonu606.shorturl.controller.mapper;
+
+import com.prgrms.wonu606.shorturl.controller.dto.ShortenUrlCreateRequest;
+import com.prgrms.wonu606.shorturl.service.dto.ShortenUrlCreateParam;
+import org.mapstruct.Mapper;
+import org.mapstruct.ReportingPolicy;
+
+@Mapper(
+        componentModel = "spring",
+        unmappedTargetPolicy = ReportingPolicy.ERROR
+)
+public interface UrlShortenerApiParamMapper {
+
+    ShortenUrlCreateParam toShortenUrlCreateParam(ShortenUrlCreateRequest request);
+}