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e2528875b2
This eliminates the use of Objectify polymorphism for EPP resources entirely (yay!), which makes the Registry 3.0 database migration easier. It is unfortunate that the naming parallelism of EppResources is lost between ContactResource, HostResource, and DomainResource, but the actual type as far as Datastore was concerned was DomainBase all along, and it would be a much more substantial data migration to allow us to continue using the class name DomainResource now that we're no longer using Objectify polymorphism. This simply isn't worth it. This also removes the polymorphic Datastore indexes (which will no longer function as of this change). The non-polymorphic replacement indexes were added in [] ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=230930546
89 lines
3.9 KiB
Java
89 lines
3.9 KiB
Java
// Copyright 2017 The Nomulus 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.mapreduce.inputs;
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import static com.google.common.base.Preconditions.checkArgument;
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import static com.google.common.collect.Lists.asList;
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import com.google.appengine.tools.mapreduce.Input;
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import com.google.common.collect.ImmutableSet;
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import com.googlecode.objectify.Key;
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import google.registry.model.EppResource;
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import google.registry.model.ImmutableObject;
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import google.registry.model.index.EppResourceIndex;
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/**
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* Mapreduce helpers for {@link EppResource} keys and objects.
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*
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* <p>The inputs provided by this class are not deletion-aware and do not project the resources
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* forward in time. That is the responsibility of mappers that use these inputs.
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*/
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public final class EppResourceInputs {
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private EppResourceInputs() {}
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/** Returns a MapReduce {@link Input} that loads all {@link EppResourceIndex} objects. */
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public static <R extends EppResource> Input<EppResourceIndex> createIndexInput() {
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return new EppResourceIndexInput();
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}
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/**
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* Returns a MapReduce {@link Input} that loads all {@link EppResource} objects of a given type,
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* including deleted resources.
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*
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* <p>Note: Do not concatenate multiple EntityInputs together (this is inefficient as it iterates
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* through all buckets multiple times). Specify the types in a single input, or load all types by
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* specifying {@link EppResource} as the class.
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*/
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@SafeVarargs
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public static <R extends EppResource> Input<R> createEntityInput(
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Class<? extends R> resourceClass,
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Class<? extends R>... moreResourceClasses) {
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return new EppResourceEntityInput<>(
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ImmutableSet.copyOf(asList(resourceClass, moreResourceClasses)));
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}
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/**
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* Returns a MapReduce {@link Input} that loads all {@link ImmutableObject} objects of a given
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* type, including deleted resources, that are child entities of all {@link EppResource} objects
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* of a given type.
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*
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* <p>Note: Do not concatenate multiple EntityInputs together (this is inefficient as it iterates
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* through all buckets multiple times). Specify the types in a single input, or load all types by
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* specifying {@link EppResource} and/or {@link ImmutableObject} as the class.
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*/
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public static <R extends EppResource, I extends ImmutableObject> Input<I> createChildEntityInput(
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ImmutableSet<Class<? extends R>> parentClasses,
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ImmutableSet<Class<? extends I>> childClasses) {
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checkArgument(!parentClasses.isEmpty(), "Must provide at least one parent type.");
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checkArgument(!childClasses.isEmpty(), "Must provide at least one child type.");
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return new ChildEntityInput<>(parentClasses, childClasses);
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}
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/**
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* Returns a MapReduce {@link Input} that loads keys to all {@link EppResource} objects of a given
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* type, including deleted resources.
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*
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* <p>Note: Do not concatenate multiple KeyInputs together (this is inefficient as it iterates
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* through all buckets multiple times). Specify the types in a single input, or load all types by
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* specifying {@link EppResource} as the class.
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*/
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@SafeVarargs
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public static <R extends EppResource> Input<Key<R>> createKeyInput(
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Class<? extends R> resourceClass, Class<? extends R>... moreResourceClasses) {
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return new EppResourceKeyInput<>(
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ImmutableSet.copyOf(asList(resourceClass, moreResourceClasses)));
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}
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}
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