GitHubからリポジトリの情報を取得できるようにした

src/main/java/net/tuzigiri/TuzigiriApplication.java

@@ -2,11 +2,18 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestTemplate;
 
 @SpringBootApplication
 public class TuzigiriApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(TuzigiriApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(TuzigiriApplication.class, args);
+    }
+
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
 }

src/main/java/net/tuzigiri/domain/github/GithubApi.java

@@ -0,0 +1,43 @@
+package net.tuzigiri.domain.github;
+
+import net.tuzigiri.domain.identity.AccessToken;
+import org.springframework.core.ParameterizedTypeReference;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.RequestEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.web.client.RestTemplate;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
+
+@Component
+public class GithubApi {
+
+    private final RestTemplate restOperations;
+
+    public GithubApi(RestTemplate restOperations) {
+        this.restOperations = restOperations;
+    }
+
+    /**
+     * アクセストークンに紐づくユーザーのリポジトリ一覧を返します
+     *
+     * @param accessToken アクセストークン
+     * @return アクセストークンに紐づくユーザーのリポジトリ一覧
+     */
+    public List<GithubRepository> fetchRepositories(AccessToken accessToken) {
+        try {
+            LinkedMultiValueMap<String, String> headers = new LinkedMultiValueMap<>();
+            headers.add("Authorization", String.format("token %s", accessToken.getTokenValue()));
+            RequestEntity requestEntity = new RequestEntity<>(headers, HttpMethod.GET, new URI("https://api.github.com/user/repos"));
+            ResponseEntity<List<GithubRepository>> entity = restOperations.exchange(requestEntity, new ParameterizedTypeReference<List<GithubRepository>>() {
+            });
+            return entity.getBody();
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/java/net/tuzigiri/domain/github/GithubRepository.java

@@ -0,0 +1,135 @@
+package net.tuzigiri.domain.github;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import java.time.LocalDateTime;
+
+/**
+ * @see <a href="https://developer.github.com/v3/repos/#response">github document</a>
+ */
+public class GithubRepository {
+    private final long id;
+    private final String name;
+    private final String fullName;
+    private final boolean isPrivate;
+    private final GithubUser owner;
+    private final String repositoryUrl;
+    private final LocalDateTime createdAt;
+    private final LocalDateTime updatedAt;
+    private final LocalDateTime pushedAt;
+    private final String gitUrl;
+    private final String sshUrl;
+    private final String cloneUrl;
+    private final long size;
+    private final long starsCount;
+    private final long watchersCount;
+    private final long forksCount;
+    private final String language;
+
+    @JsonCreator
+    public GithubRepository(
+            @JsonProperty("id") long id,
+            @JsonProperty("name") String name,
+            @JsonProperty("full_name") String fullName,
+            @JsonProperty("private") boolean isPrivate,
+            @JsonProperty("owner") GithubUser owner,
+            @JsonProperty("html_url") String repositoryUrl,
+            @JsonProperty("created_at") LocalDateTime createdAt,
+            @JsonProperty("updated_at") LocalDateTime updatedAt,
+            @JsonProperty("pushed_at") LocalDateTime pushedAt,
+            @JsonProperty("git_url") String gitUrl,
+            @JsonProperty("ssh_url") String sshUrl,
+            @JsonProperty("clone_url") String cloneUrl,
+            @JsonProperty("size") long size,
+            @JsonProperty("stargazers_count") long starsCount,
+            @JsonProperty("watchers_count") long watchersCount,
+            @JsonProperty("forks_count") long forksCount,
+            @JsonProperty("language") String language) {
+        this.id = id;
+        this.name = name;
+        this.fullName = fullName;
+        this.isPrivate = isPrivate;
+        this.owner = owner;
+        this.repositoryUrl = repositoryUrl;
+        this.createdAt = createdAt;
+        this.updatedAt = updatedAt;
+        this.pushedAt = pushedAt;
+        this.gitUrl = gitUrl;
+        this.sshUrl = sshUrl;
+        this.cloneUrl = cloneUrl;
+        this.size = size;
+        this.starsCount = starsCount;
+        this.watchersCount = watchersCount;
+        this.forksCount = forksCount;
+        this.language = language;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getFullName() {
+        return fullName;
+    }
+
+    public boolean isPrivate() {
+        return isPrivate;
+    }
+
+    public GithubUser getOwner() {
+        return owner;
+    }
+
+    public String getRepositoryUrl() {
+        return repositoryUrl;
+    }
+
+    public LocalDateTime getCreatedAt() {
+        return createdAt;
+    }
+
+    public LocalDateTime getUpdatedAt() {
+        return updatedAt;
+    }
+
+    public LocalDateTime getPushedAt() {
+        return pushedAt;
+    }
+
+    public String getGitUrl() {
+        return gitUrl;
+    }
+
+    public String getSshUrl() {
+        return sshUrl;
+    }
+
+    public String getCloneUrl() {
+        return cloneUrl;
+    }
+
+    public long getSize() {
+        return size;
+    }
+
+    public long getStarsCount() {
+        return starsCount;
+    }
+
+    public long getWatchersCount() {
+        return watchersCount;
+    }
+
+    public long getForksCount() {
+        return forksCount;
+    }
+
+    public String getLanguage() {
+        return language;
+    }
+}

src/main/java/net/tuzigiri/domain/github/GithubUser.java

@@ -0,0 +1,39 @@
+package net.tuzigiri.domain.github;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class GithubUser {
+    private final String userId;
+    private final long id;
+    private final String avatarUrl;
+    private final String profileUrl;
+
+    @JsonCreator
+    public GithubUser(
+            @JsonProperty("login") String userId,
+            @JsonProperty("id") long id,
+            @JsonProperty("avatar_url") String avatarUrl,
+            @JsonProperty("html_url") String profileUrl) {
+        this.userId = userId;
+        this.id = id;
+        this.avatarUrl = avatarUrl;
+        this.profileUrl = profileUrl;
+    }
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getAvatarUrl() {
+        return avatarUrl;
+    }
+
+    public String getProfileUrl() {
+        return profileUrl;
+    }
+}