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00ea99960a
This allows handling of N asynchronous deletion requests simultaneously instead of just 1. An accumulation pull queue is used for deletion requests, and the async deletion [] is now fired off whenever that pull queue isn't empty, and processes many tasks at once. This doesn't particularly take more time, because the bulk of the cost of the async delete operation is simply iterating over all DomainBases (which has to happen regardless of how many contacts and hosts are being deleted). ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=133169336
82 lines
3 KiB
Java
82 lines
3 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.flows.async;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import com.googlecode.objectify.Key;
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import google.registry.dns.DnsQueue;
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import google.registry.model.domain.DomainBase;
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import google.registry.model.host.HostResource;
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import google.registry.model.reporting.HistoryEntry;
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import google.registry.model.reporting.HistoryEntry.Type;
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import google.registry.request.Action;
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import javax.inject.Inject;
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import org.joda.time.DateTime;
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/**
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* A mapreduce to delete the specified HostResource, but ONLY if it is not referred to by any
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* existing DomainBase entity.
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*/
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@Action(path = "/_dr/task/deleteHostResource")
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// TODO(b/26140521): Delete this class once non-batched async operations are deleted.
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public class DeleteHostResourceAction extends DeleteEppResourceAction<HostResource> {
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@Inject
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public DeleteHostResourceAction() {
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super(
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new DeleteHostResourceMapper(),
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new DeleteHostResourceReducer());
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}
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/** An async deletion mapper for {@link HostResource}. */
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public static class DeleteHostResourceMapper extends DeleteEppResourceMapper<HostResource> {
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private static final long serialVersionUID = 1941092742903217194L;
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@Override
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protected boolean isLinked(DomainBase domain, Key<HostResource> targetResourceKey) {
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return domain.getNameservers().contains(targetResourceKey);
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}
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}
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/** An async deletion reducer for {@link HostResource}. */
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public static class DeleteHostResourceReducer extends DeleteEppResourceReducer<HostResource> {
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private static final long serialVersionUID = 555457935288867324L;
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@Override
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protected Type getHistoryType(boolean successfulDelete) {
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return successfulDelete
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? HistoryEntry.Type.HOST_DELETE
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: HistoryEntry.Type.HOST_DELETE_FAILURE;
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}
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@Override
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protected void performDeleteTasks(
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HostResource targetResource,
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HostResource deletedResource,
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DateTime deletionTime,
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HistoryEntry historyEntryForDelete) {
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if (targetResource.getSuperordinateDomain() != null) {
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DnsQueue.create().addHostRefreshTask(targetResource.getFullyQualifiedHostName());
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ofy().save().entity(
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ofy().load().key(targetResource.getSuperordinateDomain()).now().asBuilder()
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.removeSubordinateHost(targetResource.getFullyQualifiedHostName())
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.build());
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}
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}
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}
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}
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