Add support for restoring deleted datasource entries (#207)

Author: RTLcoil

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

@@ -653,6 +653,18 @@ public ApiResponse deleteDatasourceEntries(String fieldExternalId, List<String>
         return callApi(HttpMethod.DELETE, uri, Collections.singletonMap("external_ids", entriesExternalId), Collections.emptyMap());
     }
 
+    /**
+     * Restore deleted data source entries for a given field
+     * @param fieldExternalId The id of the field to operate
+     * @param entriesExternalId The ids of all the entries to restore from the data source
+     * @return The datasource entries state after restore
+     * @throws Exception
+     */
+    public ApiResponse restoreDatasourceEntries(String fieldExternalId, List<String> entriesExternalId) throws Exception {
+        List<String> uri = Arrays.asList("metadata_fields", fieldExternalId, "datasource_restore");
+        return callApi(HttpMethod.POST, uri, Collections.singletonMap("external_ids", entriesExternalId), Collections.singletonMap("content_type", "json"));
+    }
+
     /**
      * Delete a field definition.
      * @param fieldExternalId The id of the field to delete

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

@@ -158,6 +158,16 @@ public void testDeleteDatasourceEntries() throws Exception {
         assertNotNull(result);
     }
 
+    @Test
+    public void testRestoreDatasourceEntries() throws Exception {
+        SetMetadataField setField = createSetField("testRestoreDatasourceEntries");
+        ApiResponse fieldResult = addFieldToAccount(setField);
+        String fieldExternalId = fieldResult.get("external_id").toString();
+        api.deleteDatasourceEntries(fieldExternalId, Collections.singletonList("id1"));
+        ApiResponse result = api.restoreDatasourceEntries(fieldExternalId, Collections.singletonList("id1"));
+        assertNotNull(result);
+    }
+
     @Test
     public void testUploadWithMetadata() throws Exception {
         StringMetadataField field = newFieldInstance("testUploadWithMetadata");