google-nomulus/java/google/registry/tools/DeleteTldCommand.java
mountford 62c7a3935a Add nomulus tool command to delete a TLD
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=151863632
2017-04-05 10:10:38 -04:00

89 lines
3.1 KiB
Java

// 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 static com.google.common.base.Preconditions.checkState;
import static google.registry.model.ofy.ObjectifyService.ofy;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
import com.googlecode.objectify.VoidWork;
import google.registry.model.domain.DomainResource;
import google.registry.model.registrar.Registrar;
import google.registry.model.registry.Registry;
import google.registry.model.registry.Registry.TldType;
import google.registry.tools.Command.RemoteApiCommand;
/**
* Command to delete the {@link Registry} associated with the specified TLD in Datastore.
*
* <p>This command will fail if any domains are currently registered on the TLD.
*/
@Parameters(separators = " =", commandDescription = "Delete a TLD from Datastore.")
final class DeleteTldCommand extends ConfirmingCommand implements RemoteApiCommand {
private Registry registry;
@Parameter(
names = {"-t", "--tld"},
description = "The TLD to delete.",
required = true)
private String tld;
/**
* Perform the command by deleting the TLD.
*
* <p>Note that this uses an eventually consistent query, so theoretically, if you create a TLD,
* create domains on it, then delete the TLD quickly enough, the code won't notice the domains,
* and will let you delete the TLD. Since this command is only intended to be used in cleanup
* tasks, that should be ok, and the check should always provide the desired safety against
* accidental deletion of established TLDs with domains on them.
*/
@Override
protected void init() throws Exception {
registry = Registry.get(tld);
checkState(registry.getTldType().equals(TldType.TEST), "Cannot delete a real TLD");
for (Registrar registrar : Registrar.loadAll()) {
checkState(
!registrar.getAllowedTlds().contains(tld),
"Cannot delete TLD because registrar %s lists it as an allowed TLD",
registrar.getClientId());
}
int count = ofy().load()
.type(DomainResource.class)
.filter("tld", tld)
.limit(1)
.count();
checkState(count == 0, "Cannot delete TLD because a domain is defined on it");
}
@Override
protected String prompt() {
return "You are about to delete TLD: " + tld;
}
@Override
protected String execute() throws Exception {
ofy().transactNew(new VoidWork() {
@Override
public void vrun() {
ofy().delete().entity(registry).now();
}});
registry.invalidateInCache();
return String.format("Deleted TLD '%s'.\n", tld);
}
}