Import code from internal repository to git

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

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+// 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 com.beust.jcommander.Parameter;
+
+/**
+ * A command to execute an epp command that intends to mutate objects 
+ * (i.e. enables a dry run option).
+ */
+abstract class MutatingEppToolCommand extends EppToolCommand {
+
+  @Parameter(
+      names = {"-d", "--dry_run"},
+      description = "Do not actually commit any mutations")
+  boolean dryRun;
+
+  @Override
+  protected boolean isDryRun() {
+    return dryRun;
+  }
+
+  @Override
+  protected void initEppToolCommand() throws Exception {
+    initMutatingEppToolCommand();
+  }
+
+  abstract void initMutatingEppToolCommand() throws Exception;
+}