Import code from internal repository to git

java/com/google/domain/registry/tools/DeleteCreditCommand.java

@@ -0,0 +1,60 @@
+// Copyright 2016 Google Inc. All Rights Reserved.
+//
+// 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.domain.registry.tools;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.domain.registry.model.ofy.ObjectifyService.ofy;
+
+import com.google.domain.registry.model.billing.RegistrarCredit;
+import com.google.domain.registry.model.billing.RegistrarCreditBalance;
+import com.google.domain.registry.model.registrar.Registrar;
+
+import com.beust.jcommander.Parameter;
+import com.beust.jcommander.Parameters;
+
+/** Command for deleting a registrar credit object and all of its child balances. */
+@Parameters(separators = " =", commandDescription = "Delete a registrar credit")
+final class DeleteCreditCommand extends MutatingCommand {
+
+  @Parameter(
+      names = "--registrar",
+      description = "Client ID of the registrar owning the credit to delete",
+      required = true)
+  private String registrarId;
+
+  @Parameter(
+      names = "--credit_id",
+      description = "ID of credit to delete",
+      required = true)
+  private long creditId;
+
+  @Override
+  protected void init() throws Exception {
+    Registrar registrar =
+        checkNotNull(Registrar.loadByClientId(registrarId), "Registrar %s not found", registrarId);
+    RegistrarCredit credit = ofy().load()
+        .type(RegistrarCredit.class)
+        .parent(registrar)
+        .id(creditId)
+        .now();
+    checkNotNull(credit, "Registrar credit for %s with ID %s not found", registrarId, creditId);
+    stageEntityChange(credit, null);
+
+    for (RegistrarCreditBalance balance :
+        ofy().load().type(RegistrarCreditBalance.class).ancestor(credit)) {
+      stageEntityChange(balance, null);
+    }
+  }
+}