Add promise based getRepository method to the GithubServiceClient

Author: Yevhenii Voevodin

plugins/plugin-github/che-plugin-github-ext-github/src/main/java/org/eclipse/che/ide/ext/github/client/GitHubClientService.java

@@ -41,9 +41,21 @@ public interface GitHubClientService {
      *         the repository name.
      * @param callback
      *         callback called when operation is done.
+     * @deprecated use {@link #getRepository(String, String)}
      */
+    @Deprecated
     void getRepository(@NotNull String user, @NotNull String repository, @NotNull AsyncRequestCallback<GitHubRepository> callback);
 
+    /**
+     * Get given repository information.
+     *
+     * @param user
+     *         the owner of the repository.
+     * @param repository
+     *         the repository name.
+     */
+    Promise<GitHubRepository> getRepository(String user, String repository);
+
     /**
      * Get list of available public and private repositories of the authorized user.
      */
@@ -105,10 +117,14 @@ void commentIssue(@NotNull String user, @NotNull String repository, @NotNull Str
     /**
      * Get a pull request by id for a given repository.
      *
-     * @param owner the owner of the target repository
-     * @param repository the target repository
-     * @param pullRequestId the Id of the pull request
-     * @param callback the callback with either the pull request as argument or null if it doesn't exist
+     * @param owner
+     *         the owner of the target repository
+     * @param repository
+     *         the target repository
+     * @param pullRequestId
+     *         the Id of the pull request
+     * @param callback
+     *         the callback with either the pull request as argument or null if it doesn't exist
      */
     void getPullRequest(@NotNull String owner,
                         @NotNull String repository,

plugins/plugin-github/che-plugin-github-ext-github/src/main/java/org/eclipse/che/ide/ext/github/client/GitHubClientServiceImpl.java

@@ -81,6 +81,14 @@ public void getRepository(@NotNull String user, @NotNull String repository, @Not
         asyncRequestFactory.createGetRequest(url).loader(loader).send(callback);
     }
 
+    @Override
+    public Promise<GitHubRepository> getRepository(String user, String repository) {
+        final String url = baseUrl + REPOSITORIES + "/" + user + "/" + repository;
+        return asyncRequestFactory.createGetRequest(url)
+                                  .loader(loader)
+                                  .send(dtoUnmarshallerFactory.newUnmarshaller(GitHubRepository.class));
+    }
+
     /** {@inheritDoc} */
     @Override
     public Promise<List<GitHubRepository>> getRepositoriesList() {