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5012893c1d
This change renames directories in preparation for the great package rename. The repository is now in a broken state because the code itself hasn't been updated. However this should ensure that git correctly preserves history for each file.
100 lines
3.9 KiB
Java
100 lines
3.9 KiB
Java
// Copyright 2016 The Domain Registry 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 com.google.domain.registry.model.billing;
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import static com.google.domain.registry.model.ofy.ObjectifyService.ofy;
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import com.google.common.base.Function;
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import com.google.common.base.Supplier;
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import com.google.common.collect.FluentIterable;
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import com.google.common.collect.ImmutableMap;
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import com.google.common.collect.ImmutableSortedSet;
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import com.google.common.collect.Maps;
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import com.google.common.collect.Maps.EntryTransformer;
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import com.google.common.collect.Ordering;
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import com.google.domain.registry.model.registrar.Registrar;
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import com.google.domain.registry.model.registry.Registries;
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import com.google.domain.registry.model.registry.Registry;
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import com.google.domain.registry.util.CacheUtils;
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import com.googlecode.objectify.cmd.Query;
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import org.joda.money.CurrencyUnit;
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import org.joda.money.Money;
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import java.util.Map;
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/** Utilities for managing the billing of {@link Registrar} customers. */
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public final class RegistrarBillingUtils {
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private static final Supplier<ImmutableSortedSet<CurrencyUnit>> CURRENCIES_CACHE =
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CacheUtils.memoizeWithShortExpiration(
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new Supplier<ImmutableSortedSet<CurrencyUnit>>() {
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@Override
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public ImmutableSortedSet<CurrencyUnit> get() {
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return FluentIterable
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.from(Registries.getTlds())
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.transform(new Function<String, CurrencyUnit>() {
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@Override
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public CurrencyUnit apply(String tld) {
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return Registry.get(tld).getCurrency();
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}})
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.toSortedSet(Ordering.natural());
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}
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});
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/**
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* Returns set of currencies in which registrars may be billed.
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*
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* <p>Each TLD has a currency associated with it. We don't do conversions. The registrar customer
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* gets a separate bill for each currency.
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*/
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public static ImmutableSortedSet<CurrencyUnit> getCurrencies() {
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return CURRENCIES_CACHE.get();
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}
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/**
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* Returns query of {@link RegistrarBillingEntry} for each currency, most recent first.
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*
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* <p><b>Note:</b> Currency map keys are returned in sorted order, from {@link #getCurrencies()}.
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*/
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public static ImmutableMap<CurrencyUnit, Query<RegistrarBillingEntry>> getBillingEntryQueries(
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final Registrar registrar) {
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return Maps.toMap(getCurrencies(),
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new Function<CurrencyUnit, Query<RegistrarBillingEntry>>() {
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@Override
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public Query<RegistrarBillingEntry> apply(CurrencyUnit currency) {
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return ofy().load()
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.type(RegistrarBillingEntry.class)
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.ancestor(registrar)
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.filter("currency", currency)
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.order("-created");
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}});
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}
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/** Returns amount of money registrar currently owes registry in each currency. */
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public static Map<CurrencyUnit, Money> loadBalance(Registrar registrar) {
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return Maps.transformEntries(getBillingEntryQueries(registrar),
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new EntryTransformer<CurrencyUnit, Query<RegistrarBillingEntry>, Money>() {
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@Override
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public Money transformEntry(
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CurrencyUnit currency, Query<RegistrarBillingEntry> query) {
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RegistrarBillingEntry entry = query.first().now();
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return entry != null ? entry.getBalance() : Money.zero(currency);
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}});
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}
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private RegistrarBillingUtils() {}
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}
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