Add delete backup asset version support

Author: adimiz1

cloudinary-core/src/main/java/com/cloudinary/Api.java

@@ -802,6 +802,25 @@ public ApiResponse renameFolder(String path, String toPath, Map options) throws
 
     }
 
+    public ApiResponse deleteBackedUpAssets(String assetId, String[] versionIds, Map options) throws Exception {
+        if (options == null || options.isEmpty()) options = ObjectUtils.asMap();
+        if (StringUtils.isEmpty(assetId)) {
+            throw new IllegalArgumentException("AssetId parameter is required");
+        }
+
+        if (versionIds == null || versionIds.length == 0) {
+            throw new IllegalArgumentException("VersionIds parameter is required");
+        }
+
+        List<String> url = Arrays.asList("resources", "backup", assetId);
+
+        Map<String, Object> params = new HashMap<String, Object>();
+        params.put("version_ids[]", StringUtils.join(versionIds, "&"));
+
+        return callApi(HttpMethod.DELETE, url, params, options);
+
+    }
+
     private Map<String, ?> extractParams(Map options, List<String> keys) {
         Map<String, Object> result = new HashMap<String, Object>();
         for (String key : keys) {

cloudinary-test-common/src/main/java/com/cloudinary/test/AbstractApiTest.java

@@ -1278,4 +1278,24 @@ public void testRenameFolder() throws Exception {
         Map response = api.renameFolder(folderName, "newFolderName", ObjectUtils.emptyMap());
         assertNotNull(response);
     }
+
+    @Test
+    public void testDeleteBackedupAsset() throws Exception {
+        if (MockableTest.shouldTestFeature(Feature.BACKEDUP_ASSETS)) {
+            Map result = cloudinary.uploader().upload(SRC_TEST_IMAGE, ObjectUtils.asMap("backup", true));
+
+            String publicId = (String) result.get("public_id");
+            String assetId = (String) result.get("asset_id");
+
+            ApiResponse getVersionsResp = api.resource(publicId, ObjectUtils.asMap("versions", true));
+            List<Map> versions = (List<Map>) getVersionsResp.get("versions");
+            String firstAssetVersion = (String) versions.get(0).get("version_id");
+            ApiResponse response = api.deleteBackedUpAssets(assetId, new String[]{firstAssetVersion}, ObjectUtils.emptyMap());
+
+            assertNotNull(response);
+            assertEquals(response.get("asset_id"), assetId);
+            List<String> deletedVersionIds = (List<String>) response.get("deleted_version_ids");
+            assertEquals(deletedVersionIds.get(0), firstAssetVersion);
+        }
+    }
 }

cloudinary-test-common/src/main/java/com/cloudinary/test/helpers/Feature.java

@@ -3,4 +3,5 @@
 public class Feature {
     public static final String ALL = "all";
     public static final String DYNAMIC_FOLDERS = "dynamic_folders";
+    public static final String BACKEDUP_ASSETS = "backedup_assets";
 }