Add delete_host nomulus tool command

This is needed to delete an invalid host resulting from a previous bug.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=154757425

java/google/registry/tools/DeleteHostCommand.java

@@ -0,0 +1,58 @@
+// Copyright 2017 The Nomulus Authors. 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 google.registry.tools;
+
+import com.beust.jcommander.Parameter;
+import com.beust.jcommander.Parameters;
+import com.google.template.soy.data.SoyMapData;
+import google.registry.tools.soy.DeleteHostSoyInfo;
+
+/** A command to delete a host via EPP. */
+@Parameters(separators = " =", commandDescription = "Delete host")
+final class DeleteHostCommand extends MutatingEppToolCommand {
+
+  @Parameter(
+      names = {"-c", "--client"},
+      description = "Client identifier of the registrar to execute the command as",
+      required = true)
+  String clientId;
+
+  @Parameter(
+      names = "--host",
+      description = "Host name to delete.",
+      required = true)
+  private String hostName;
+
+  @Parameter(
+      names = {"--reason"},
+      description = "Reason for the change.",
+      required = true)
+  private String reason;
+
+  @Parameter(
+      names = {"--registrar_request"},
+      description = "Whether the change was requested by a registrar.",
+      arity = 1)
+  private boolean requestedByRegistrar = false;
+
+  @Override
+  protected void initMutatingEppToolCommand() {
+    setSoyTemplate(DeleteHostSoyInfo.getInstance(), DeleteHostSoyInfo.DELETEHOST);
+    addSoyRecord(clientId, new SoyMapData(
+        "hostName", hostName,
+        "reason", reason,
+        "requestedByRegistrar", requestedByRegistrar));
+  }
+}