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Break out EppResourceInput subclasses

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This frankenclass was starting to get a little cluttered, especially once I add the ChildEntityInput/Reader.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=117266882
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ctingue 2016-03-15 12:41:31 -07:00 • committed by Justine Tunney
parent 57fa57968d
commit 77dd730400
31 changed files with 876 additions and 20 deletions
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java/com/google/domain/registry/mapreduce/inputs/EppResourceBaseInput.java Normal file
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// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.domain.registry.mapreduce.inputs;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.domain.registry.util.CollectionUtils.difference;
import com.google.appengine.tools.mapreduce.Input;
import com.google.appengine.tools.mapreduce.InputReader;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.domain.registry.model.EppResource;
import com.google.domain.registry.model.index.EppResourceIndex;
import com.google.domain.registry.model.index.EppResourceIndexBucket;
import com.googlecode.objectify.Key;
import java.util.List;
/** Base class for {@link Input} classes that map over {@link EppResourceIndex}. */
abstract class EppResourceBaseInput<I> extends Input<I> {
private static final long serialVersionUID = -6681886718929462122L;
@Override
public List<InputReader<I>> createReaders() {
ImmutableList.Builder<InputReader<I>> readers = new ImmutableList.Builder<>();
for (Key<EppResourceIndexBucket> bucketKey : EppResourceIndexBucket.getAllBuckets()) {
readers.add(bucketToReader(bucketKey));
}
return readers.build();
}
/** Creates a reader that returns the resources under a bucket. */
protected abstract InputReader<I> bucketToReader(Key<EppResourceIndexBucket> bucketKey);
static <R extends EppResource> void checkResourceClassesForInheritance(
ImmutableSet<Class<? extends R>> resourceClasses) {
for (Class<? extends R> resourceClass : resourceClasses) {
for (Class<? extends R> potentialSuperclass : difference(resourceClasses, resourceClass)) {
checkArgument(
!potentialSuperclass.isAssignableFrom(resourceClass),
"Cannot specify resource classes with inheritance relationship: %s extends %s",
resourceClass,
potentialSuperclass);
}
}
}
}