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77dd730400
This frankenclass was starting to get a little cluttered, especially once I add the ChildEntityInput/Reader. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=117266882
45 lines
1.7 KiB
Java
45 lines
1.7 KiB
Java
// Copyright 2016 Google Inc. 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 com.google.domain.registry.mapreduce.inputs;
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import com.google.appengine.tools.mapreduce.Input;
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import com.google.appengine.tools.mapreduce.InputReader;
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import com.google.common.collect.ImmutableSet;
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import com.google.domain.registry.model.EppResource;
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import com.google.domain.registry.model.index.EppResourceIndexBucket;
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import com.googlecode.objectify.Key;
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/**
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* A MapReduce {@link Input} that loads keys to all {@link EppResource} objects of a given type.
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*
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* <p>When mapping over keys we can't distinguish between Objectify polymorphic types.
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*/
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class EppResourceKeyInput<R extends EppResource> extends EppResourceBaseInput<Key<R>> {
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private static final long serialVersionUID = -5426821384707653743L;
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private final ImmutableSet<Class<? extends R>> resourceClasses;
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public EppResourceKeyInput(ImmutableSet<Class<? extends R>> resourceClasses) {
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this.resourceClasses = resourceClasses;
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checkResourceClassesForInheritance(resourceClasses);
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}
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@Override
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protected InputReader<Key<R>> bucketToReader(Key<EppResourceIndexBucket> bucketKey) {
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return new EppResourceKeyReader<>(bucketKey, resourceClasses);
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}
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}
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