1 files changed, 40 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/update/RetryingRestCollectionModifyView.java b/java/com/google/gerrit/server/update/RetryingRestCollectionModifyView.java
new file mode 100644
index 0000000000..76203867dd
--- /dev/null
+++ b/java/com/google/gerrit/server/update/RetryingRestCollectionModifyView.java
@@ -0,0 +1,40 @@
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.update;
+
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.extensions.restapi.BadRequestException;
+import com.google.gerrit.extensions.restapi.ResourceConflictException;
+import com.google.gerrit.extensions.restapi.RestCollectionModifyView;
+import com.google.gerrit.extensions.restapi.RestResource;
+
+public abstract class RetryingRestCollectionModifyView<
+        P extends RestResource, C extends RestResource, I, O>
+    implements RestCollectionModifyView<P, C, I> {
+  private final RetryHelper retryHelper;
+
+  protected RetryingRestCollectionModifyView(RetryHelper retryHelper) {
+    this.retryHelper = retryHelper;
+  }
+
+  @Override
+  public final O apply(P parentResource, I input)
+      throws AuthException, BadRequestException, ResourceConflictException, Exception {
+    return retryHelper.execute((updateFactory) -> applyImpl(updateFactory, parentResource, input));
+  }
+
+  protected abstract O applyImpl(BatchUpdate.Factory updateFactory, P parentResource, I input)
+      throws Exception;
+}