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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.
113 lines
4.6 KiB
Java
113 lines
4.6 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.tools.server;
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import static com.google.common.base.Preconditions.checkArgument;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import static google.registry.request.Action.Method.POST;
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import static google.registry.util.PipelineUtils.createJobPath;
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import com.google.appengine.tools.mapreduce.Mapper;
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import com.google.common.collect.ImmutableList;
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import com.googlecode.objectify.Key;
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import com.googlecode.objectify.Work;
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import google.registry.config.RegistryEnvironment;
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import google.registry.mapreduce.MapreduceAction;
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import google.registry.mapreduce.MapreduceRunner;
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import google.registry.mapreduce.inputs.EppResourceInputs;
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import google.registry.model.EppResource;
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import google.registry.model.domain.DomainApplication;
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import google.registry.model.index.DomainApplicationIndex;
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import google.registry.model.index.EppResourceIndex;
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import google.registry.model.index.ForeignKeyIndex;
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import google.registry.request.Action;
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import google.registry.request.Response;
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import javax.inject.Inject;
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/** Deletes all {@link EppResource} objects in datastore, including indices and descendants. */
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@Action(path = "/_dr/task/killAllEppResources", method = POST)
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public class KillAllEppResourcesAction implements MapreduceAction {
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@Inject MapreduceRunner mrRunner;
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@Inject Response response;
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@Inject KillAllEppResourcesAction() {}
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@Override
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public void run() {
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checkArgument( // safety
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RegistryEnvironment.get() == RegistryEnvironment.CRASH
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|| RegistryEnvironment.get() == RegistryEnvironment.UNITTEST,
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"DO NOT RUN ANYWHERE ELSE EXCEPT CRASH OR TESTS.");
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response.sendJavaScriptRedirect(createJobPath(mrRunner
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.setJobName("Delete all EppResources, children, and indices")
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.setModuleName("tools")
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.runMapreduce(
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new KillAllEppResourcesMapper(),
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new KillAllEntitiesReducer(),
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ImmutableList.of(EppResourceInputs.createIndexInput()))));
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}
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static class KillAllEppResourcesMapper extends Mapper<EppResourceIndex, Key<?>, Key<?>> {
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private static final long serialVersionUID = 8205309000002507407L;
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/**
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* Delete an {@link EppResourceIndex}, its referent, all descendants of each referent, and the
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* {@link ForeignKeyIndex} or {@link DomainApplicationIndex} of the referent, as appropriate.
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*
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* <p>This will delete:
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* <ul>
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* <li>All {@link ForeignKeyIndex} types
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* <li>{@link DomainApplicationIndex}
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* <li>{@link EppResourceIndex}
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* <li>All {@link EppResource} types
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* <li>{@code HistoryEntry}
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* <li>All {@code BillingEvent} types
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* <li>All {@code PollMessage} types
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* </ul>
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*/
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@Override
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public void map(final EppResourceIndex eri) {
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Key<EppResourceIndex> eriKey = Key.create(eri);
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emitAndIncrementCounter(eriKey, eriKey);
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Key<?> resourceKey = eri.getReference().getKey();
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for (Key<Object> key : ofy().load().ancestor(resourceKey).keys()) {
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emitAndIncrementCounter(resourceKey, key);
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}
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// Load in a transaction to make sure we don't get stale data (in case of host renames).
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// TODO(b/27424173): A transaction is overkill. When we have memcache-skipping, use that.
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EppResource resource = ofy().transactNewReadOnly(
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new Work<EppResource>() {
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@Override
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public EppResource run() {
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return eri.getReference().get();
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}});
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// TODO(b/28247733): What about FKI's for renamed hosts?
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Key<?> indexKey = resource instanceof DomainApplication
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? DomainApplicationIndex.createKey((DomainApplication) resource)
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: ForeignKeyIndex.createKey(resource);
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emitAndIncrementCounter(indexKey, indexKey);
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}
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private void emitAndIncrementCounter(Key<?> ancestor, Key<?> child) {
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emit(ancestor, child);
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getContext().incrementCounter("entities emitted");
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getContext().incrementCounter(String.format("%s emitted", child.getKind()));
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}
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}
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}
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