added webservice method for fetch tags of a repository

scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryResource.java

@@ -61,6 +61,7 @@ import sonia.scm.repository.RepositoryIsNotArchivedException;
 import sonia.scm.repository.RepositoryManager;
 import sonia.scm.repository.RepositoryNotFoundException;
 import sonia.scm.repository.RepositoryUtil;
+import sonia.scm.repository.Tags;
 import sonia.scm.repository.api.BlameCommandBuilder;
 import sonia.scm.repository.api.BrowseCommandBuilder;
 import sonia.scm.repository.api.CatCommandBuilder;
@@ -133,8 +134,8 @@ public class RepositoryResource
    * @param blameViewerUtil
    */
   @Inject
-  public RepositoryResource(
-          ScmConfiguration configuration, RepositoryManager repositoryManager,
+  public RepositoryResource(ScmConfiguration configuration,
+    RepositoryManager repositoryManager,
     Provider<WebSecurityContext> securityContextProvider,
     RepositoryServiceFactory servicefactory)
   {
@@ -343,8 +344,7 @@ public class RepositoryResource
   @TypeHint(BlameResult.class)
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   public Response getBlame(@PathParam("id") String id,
-                           @QueryParam("revision") String revision,
-                           @QueryParam("path") String path)
+    @QueryParam("revision") String revision, @QueryParam("path") String path)
     throws RepositoryException, IOException
   {
     Response response = null;
@@ -419,8 +419,7 @@ public class RepositoryResource
   @TypeHint(BrowserResult.class)
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   public Response getBrowserResult(@PathParam("id") String id,
-                                   @QueryParam("revision") String revision,
-                                   @QueryParam("path") String path)
+    @QueryParam("revision") String revision, @QueryParam("path") String path)
     throws RepositoryException, IOException
   {
     Response response = null;
@@ -611,8 +610,7 @@ public class RepositoryResource
   @TypeHint(ChangesetPagingResult.class)
   @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
   public Response getChangesets(@PathParam("id") String id,
-                                @QueryParam("path") String path,
-                                @QueryParam("revision") String revision,
+    @QueryParam("path") String path, @QueryParam("revision") String revision,
     @DefaultValue("0")
   @QueryParam("start") int start, @DefaultValue("20")
   @QueryParam("limit") int limit) throws RepositoryException, IOException
@@ -689,8 +687,7 @@ public class RepositoryResource
   @TypeHint(StreamingOutput.class)
   @Produces({ MediaType.APPLICATION_OCTET_STREAM })
   public Response getContent(@PathParam("id") String id,
-                             @QueryParam("revision") String revision,
-                             @QueryParam("path") String path)
+    @QueryParam("revision") String revision, @QueryParam("path") String path)
   {
     Response response = null;
     StreamingOutput output = null;
@@ -762,8 +759,7 @@ public class RepositoryResource
   @TypeHint(DiffStreamingOutput.class)
   @Produces(MediaType.APPLICATION_OCTET_STREAM)
   public Response getDiff(@PathParam("id") String id,
-                          @QueryParam("revision") String revision,
-                          @QueryParam("path") String path)
+    @QueryParam("revision") String revision, @QueryParam("path") String path)
     throws RepositoryException, IOException
   {
     AssertUtil.assertIsNotEmpty(id);
@@ -816,6 +812,66 @@ public class RepositoryResource
     return response;
   }
 
+  /**
+   * Returns all {@link Tags} of a repository.<br />
+   * <br />
+   * Status codes:
+   * <ul>
+   *   <li>200 get successful</li>
+   *   <li>400 bad request, the content feature is not
+   *       supported by this type of repositories.</li>
+   *   <li>404 not found, if the repository or the path could not be found</li>
+   *   <li>500 internal server error</li>
+   * </ul>
+   *
+   * @param id the id of the repository
+   *
+   * @return all {@link Tags} of a repository
+   *
+   * @throws IOException
+   * @throws RepositoryException
+   * 
+   * @since 1.18
+   */
+  @GET
+  @Path("{id}/tags")
+  public Response getTags(@PathParam("id") String id)
+    throws RepositoryException, IOException
+  {
+    Response response = null;
+    RepositoryService service = null;
+
+    try
+    {
+      service = servicefactory.create(id);
+
+      Tags tags = service.getTagsCommand().getTags();
+
+      if (tags != null)
+      {
+        response = Response.ok(tags).build();
+      }
+      else
+      {
+        response = Response.status(Status.NOT_FOUND).build();
+      }
+    }
+    catch (RepositoryNotFoundException ex)
+    {
+      response = Response.status(Response.Status.NOT_FOUND).build();
+    }
+    catch (CommandNotSupportedException ex)
+    {
+      response = Response.status(Response.Status.BAD_REQUEST).build();
+    }
+    finally
+    {
+      Closeables.closeQuietly(service);
+    }
+
+    return response;
+  }
+
   //~--- methods --------------------------------------------------------------
 
   /**