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6a272bc8c6
It's dangerous to have a blank prefix delete all tokens and this allows for some code unification. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=250493453
95 lines
3.5 KiB
Java
95 lines
3.5 KiB
Java
// Copyright 2018 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.tools;
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import static com.google.common.collect.ImmutableSet.toImmutableSet;
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import static com.google.common.collect.Iterables.partition;
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import static com.google.common.collect.Streams.stream;
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import static google.registry.model.domain.token.AllocationToken.TokenType.SINGLE_USE;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import com.beust.jcommander.Parameter;
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import com.beust.jcommander.Parameters;
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import com.google.common.base.Joiner;
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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.domain.token.AllocationToken;
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import java.util.List;
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/**
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* Command to delete unused {@link AllocationToken}s.
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*
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* <p>Note that all multi-use tokens and redeemed single-use tokens cannot be deleted.
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*/
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@Parameters(
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separators = " =",
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commandDescription =
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"Deletes the unused AllocationTokens with a given prefix (or specified tokens).")
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final class DeleteAllocationTokensCommand extends UpdateOrDeleteAllocationTokensCommand {
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@Parameter(
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names = {"--with_domains"},
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description = "Allow deletion of allocation tokens with specified domains; defaults to false")
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private boolean withDomains;
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private static final int BATCH_SIZE = 20;
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private static final Joiner JOINER = Joiner.on(", ");
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private ImmutableSet<Key<AllocationToken>> tokensToDelete;
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@Override
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public void init() {
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tokensToDelete = getTokenKeys();
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}
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@Override
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protected String prompt() {
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return String.format(
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"Found %d unused tokens starting with '%s' to delete.", tokensToDelete.size(), prefix);
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}
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@Override
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protected String execute() {
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long numDeleted =
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stream(partition(tokensToDelete, BATCH_SIZE))
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.mapToLong(batch -> ofy().transact(() -> deleteBatch(batch)))
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.sum();
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return String.format("Deleted %d tokens in total.", numDeleted);
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}
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/** Deletes a (filtered) batch of AllocationTokens and returns how many were deleted. */
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private long deleteBatch(List<Key<AllocationToken>> batch) {
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// Load the tokens in the same transaction as they are deleted to verify they weren't redeemed
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// since the query ran. This also filters out per-domain tokens if they're not to be deleted.
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ImmutableSet<AllocationToken> tokensToDelete =
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ofy().load().keys(batch).values().stream()
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.filter(t -> withDomains || !t.getDomainName().isPresent())
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.filter(t -> SINGLE_USE.equals(t.getTokenType()))
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.filter(t -> !t.isRedeemed())
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.collect(toImmutableSet());
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if (!dryRun) {
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ofy().delete().entities(tokensToDelete);
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}
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System.out.printf(
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"%s tokens: %s\n",
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dryRun ? "Would delete" : "Deleted",
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JOINER.join(
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tokensToDelete.stream()
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.map(AllocationToken::getToken)
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.sorted()
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.collect(toImmutableSet())));
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return tokensToDelete.size();
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}
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}
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