98 lines
4.4 KiB
Java
98 lines
4.4 KiB
Java
// Copyright (C) 2017 The Android Open Source Project
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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.gerrit.pgm.init.index;
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import com.google.common.collect.FluentIterable;
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import com.google.common.collect.ImmutableCollection;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableMap;
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import com.google.gerrit.extensions.events.LifecycleListener;
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import com.google.gerrit.index.IndexDefinition;
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import com.google.gerrit.index.SchemaDefinitions;
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import com.google.gerrit.server.account.AccountCache;
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import com.google.gerrit.server.account.GroupCache;
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import com.google.gerrit.server.index.SingleVersionModule;
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import com.google.gerrit.server.index.SingleVersionModule.SingleVersionListener;
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import com.google.gerrit.server.index.account.AccountIndexCollection;
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import com.google.gerrit.server.index.account.AccountIndexDefinition;
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import com.google.gerrit.server.index.account.AccountSchemaDefinitions;
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import com.google.gerrit.server.index.account.AllAccountsIndexer;
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import com.google.gerrit.server.index.group.AllGroupsIndexer;
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import com.google.gerrit.server.index.group.GroupIndexDefinition;
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import com.google.gerrit.server.index.group.GroupSchemaDefinitions;
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import com.google.inject.AbstractModule;
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import com.google.inject.Provides;
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import com.google.inject.ProvisionException;
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import com.google.inject.TypeLiteral;
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import com.google.inject.name.Names;
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import com.google.inject.util.Providers;
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import java.util.Collection;
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import java.util.Map;
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import java.util.Set;
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public class IndexModuleOnInit extends AbstractModule {
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static final String INDEX_MANAGER = "IndexModuleOnInit/IndexManager";
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private static final ImmutableCollection<SchemaDefinitions<?>> ALL_SCHEMA_DEFS =
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ImmutableList.of(AccountSchemaDefinitions.INSTANCE, GroupSchemaDefinitions.INSTANCE);
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@Override
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protected void configure() {
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// The AccountIndex implementations (LuceneAccountIndex and
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// ElasticAccountIndex) need AccountCache only for reading from the index.
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// On init we only want to write to the index, hence we don't need the
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// account cache.
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bind(AccountCache.class).toProvider(Providers.of(null));
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// AccountIndexDefinition wants to have AllAccountsIndexer but it is only
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// used by the Reindex program and the OnlineReindexer which are both not
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// used during init, hence we don't need AllAccountsIndexer.
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bind(AllAccountsIndexer.class).toProvider(Providers.of(null));
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bind(AccountIndexCollection.class);
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// The GroupIndex implementations (LuceneGroupIndex and ElasticGroupIndex)
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// need GroupCache only for reading from the index. On init we only want to
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// write to the index, hence we don't need the group cache.
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bind(GroupCache.class).toProvider(Providers.of(null));
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// GroupIndexDefinition wants to have AllGroupsIndexer but it is only used
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// by the Reindex program and the OnlineReindexer which are both not used
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// during init, hence we don't need AllGroupsIndexer.
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bind(AllGroupsIndexer.class).toProvider(Providers.of(null));
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bind(new TypeLiteral<Map<String, Integer>>() {})
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.annotatedWith(Names.named(SingleVersionModule.SINGLE_VERSIONS))
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.toInstance(ImmutableMap.of());
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bind(LifecycleListener.class)
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.annotatedWith(Names.named(INDEX_MANAGER))
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.to(SingleVersionListener.class);
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}
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@Provides
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Collection<IndexDefinition<?, ?, ?>> getIndexDefinitions(
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AccountIndexDefinition accounts, GroupIndexDefinition groups) {
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Collection<IndexDefinition<?, ?, ?>> result = ImmutableList.of(accounts, groups);
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Set<String> expected =
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FluentIterable.from(ALL_SCHEMA_DEFS).transform(SchemaDefinitions::getName).toSet();
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Set<String> actual = FluentIterable.from(result).transform(IndexDefinition::getName).toSet();
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if (!expected.equals(actual)) {
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throw new ProvisionException(
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"need index definitions for all schemas: " + expected + " != " + actual);
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}
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return result;
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}
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}
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