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9a2afc7a9b
ReferenceUnion is a hack to work around the mismatch between how we store references (by roid) and how they are represented in EPP (by foreign key). If it ever needed to exist (not entirely clear...) it should have remained tightly scoped within the domain commands and resources. Instead it has leaked everywhere in the project, causing lots of boilerplate. This CL hides all of that behind standard Refs, and should be followed by work to remove ReferenceUnion completely. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=122424416
88 lines
3.8 KiB
Java
88 lines
3.8 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.host;
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import static google.registry.model.EppResourceUtils.queryDomainsUsingResource;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import com.google.common.base.Predicate;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.Iterables;
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import com.googlecode.objectify.Key;
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import com.googlecode.objectify.Ref;
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import google.registry.config.RegistryEnvironment;
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import google.registry.flows.EppException;
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import google.registry.flows.ResourceAsyncDeleteFlow;
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import google.registry.flows.async.AsyncFlowUtils;
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import google.registry.flows.async.DeleteEppResourceAction;
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import google.registry.flows.async.DeleteHostResourceAction;
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import google.registry.model.domain.DomainBase;
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import google.registry.model.host.HostCommand.Delete;
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import google.registry.model.host.HostResource;
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import google.registry.model.host.HostResource.Builder;
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import google.registry.model.reporting.HistoryEntry;
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/**
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* An EPP flow that deletes a host resource.
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*
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* @error {@link google.registry.flows.ResourceAsyncDeleteFlow.ResourceToDeleteIsReferencedException}
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* @error {@link google.registry.flows.ResourceFlowUtils.ResourceNotOwnedException}
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* @error {@link google.registry.flows.ResourceMutateFlow.ResourceToMutateDoesNotExistException}
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* @error {@link google.registry.flows.SingleResourceFlow.ResourceStatusProhibitsOperationException}
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*/
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public class HostDeleteFlow extends ResourceAsyncDeleteFlow<HostResource, Builder, Delete> {
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/** In {@link #isLinkedForFailfast}, check this (arbitrary) number of resources from the query. */
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private static final int FAILFAST_CHECK_COUNT = 5;
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@Override
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protected boolean isLinkedForFailfast(final Ref<HostResource> ref) {
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// Query for the first few linked domains, and if found, actually load them. The query is
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// eventually consistent and so might be very stale, but the direct load will not be stale,
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// just non-transactional. If we find at least one actual reference then we can reliably
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// fail. If we don't find any, we can't trust the query and need to do the full mapreduce.
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return Iterables.any(
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ofy().load().keys(
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queryDomainsUsingResource(
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HostResource.class, ref, now, FAILFAST_CHECK_COUNT)).values(),
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new Predicate<DomainBase>() {
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@Override
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public boolean apply(DomainBase domain) {
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return domain.getNameservers().contains(ref);
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}});
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}
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/** Enqueues a host resource deletion on the mapreduce queue. */
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@Override
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protected final void enqueueTasks() throws EppException {
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AsyncFlowUtils.enqueueMapreduceAction(
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DeleteHostResourceAction.class,
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ImmutableMap.of(
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DeleteEppResourceAction.PARAM_RESOURCE_KEY,
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Key.create(existingResource).getString(),
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DeleteEppResourceAction.PARAM_REQUESTING_CLIENT_ID,
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getClientId(),
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DeleteEppResourceAction.PARAM_IS_SUPERUSER,
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Boolean.toString(superuser)),
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RegistryEnvironment.get().config().getAsyncDeleteFlowMapreduceDelay());
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}
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@Override
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protected final HistoryEntry.Type getHistoryEntryType() {
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return HistoryEntry.Type.HOST_PENDING_DELETE;
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}
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}
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