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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
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 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.domain.ReferenceUnion;
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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 ReferenceUnion<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.getLinked(), 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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