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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
62 lines
2.4 KiB
Java
62 lines
2.4 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 static com.google.common.base.Preconditions.checkArgument;
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import static com.google.domain.registry.util.CollectionUtils.difference;
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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.ImmutableList;
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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.EppResourceIndex;
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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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import java.util.List;
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/** Base class for {@link Input} classes that map over {@link EppResourceIndex}. */
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abstract class EppResourceBaseInput<I> extends Input<I> {
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private static final long serialVersionUID = -6681886718929462122L;
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@Override
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public List<InputReader<I>> createReaders() {
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ImmutableList.Builder<InputReader<I>> readers = new ImmutableList.Builder<>();
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for (Key<EppResourceIndexBucket> bucketKey : EppResourceIndexBucket.getAllBuckets()) {
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readers.add(bucketToReader(bucketKey));
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}
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return readers.build();
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}
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/** Creates a reader that returns the resources under a bucket. */
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protected abstract InputReader<I> bucketToReader(Key<EppResourceIndexBucket> bucketKey);
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static <R extends EppResource> void checkResourceClassesForInheritance(
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ImmutableSet<Class<? extends R>> resourceClasses) {
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for (Class<? extends R> resourceClass : resourceClasses) {
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for (Class<? extends R> potentialSuperclass : difference(resourceClasses, resourceClass)) {
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checkArgument(
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!potentialSuperclass.isAssignableFrom(resourceClass),
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"Cannot specify resource classes with inheritance relationship: %s extends %s",
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resourceClass,
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potentialSuperclass);
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}
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}
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}
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}
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