132 lines
4.5 KiB
Java
132 lines
4.5 KiB
Java
// Copyright (C) 2009 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.server.schema;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.gerrit.reviewdb.client.CurrentSchemaVersion;
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import com.google.gerrit.reviewdb.server.ReviewDb;
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import com.google.gerrit.reviewdb.server.ReviewDbUtil;
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import com.google.gerrit.server.GerritPersonIdent;
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import com.google.gerrit.server.config.AllProjectsName;
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import com.google.gerrit.server.config.AllUsersName;
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import com.google.gerrit.server.config.AnonymousCowardName;
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import com.google.gerrit.server.config.GerritServerConfig;
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import com.google.gerrit.server.config.SitePaths;
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import com.google.gerrit.server.git.GitRepositoryManager;
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import com.google.gerrit.server.group.SystemGroupBackend;
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import com.google.gwtorm.server.OrmException;
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import com.google.gwtorm.server.SchemaFactory;
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import com.google.inject.AbstractModule;
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import com.google.inject.Guice;
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import com.google.inject.Inject;
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import com.google.inject.Injector;
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import com.google.inject.Key;
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import com.google.inject.Provider;
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import com.google.inject.Stage;
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import java.io.IOException;
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import java.sql.SQLException;
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import org.eclipse.jgit.errors.ConfigInvalidException;
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import org.eclipse.jgit.lib.Config;
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import org.eclipse.jgit.lib.PersonIdent;
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/** Creates or updates the current database schema. */
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public class SchemaUpdater {
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private final SchemaFactory<ReviewDb> schema;
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private final SchemaCreator creator;
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private final Provider<SchemaVersion> updater;
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@Inject
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SchemaUpdater(
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@ReviewDbFactory SchemaFactory<ReviewDb> schema, SchemaCreator creator, Injector parent) {
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this.schema = schema;
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this.creator = creator;
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this.updater = buildInjector(parent).getProvider(SchemaVersion.class);
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}
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private static Injector buildInjector(Injector parent) {
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// Use DEVELOPMENT mode to allow lazy initialization of the
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// graph. This avoids touching ancient schema versions that
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// are behind this installation's current version.
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return Guice.createInjector(
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Stage.DEVELOPMENT,
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new AbstractModule() {
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@Override
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protected void configure() {
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bind(SchemaVersion.class).to(SchemaVersion.C);
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for (Key<?> k :
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new Key<?>[] {
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Key.get(PersonIdent.class, GerritPersonIdent.class),
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Key.get(String.class, AnonymousCowardName.class),
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Key.get(Config.class, GerritServerConfig.class),
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}) {
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rebind(parent, k);
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}
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for (Class<?> c :
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new Class<?>[] {
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AllProjectsName.class,
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AllUsersCreator.class,
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AllUsersName.class,
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GitRepositoryManager.class,
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SitePaths.class,
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SystemGroupBackend.class,
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}) {
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rebind(parent, Key.get(c));
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}
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}
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private <T> void rebind(Injector parent, Key<T> c) {
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bind(c).toProvider(parent.getProvider(c));
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}
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});
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}
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public void update(UpdateUI ui) throws OrmException {
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try (ReviewDb db = ReviewDbUtil.unwrapDb(schema.open())) {
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final SchemaVersion u = updater.get();
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final CurrentSchemaVersion version = getSchemaVersion(db);
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if (version == null) {
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try {
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creator.create(db);
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} catch (IOException | ConfigInvalidException e) {
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throw new OrmException("Cannot initialize schema", e);
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}
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} else {
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try {
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u.check(ui, version, db);
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} catch (SQLException e) {
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throw new OrmException("Cannot upgrade schema", e);
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}
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}
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}
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}
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@VisibleForTesting
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public SchemaVersion getLatestSchemaVersion() {
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return updater.get();
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}
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private CurrentSchemaVersion getSchemaVersion(ReviewDb db) {
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try {
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return db.schemaVersion().get(new CurrentSchemaVersion.Key());
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} catch (OrmException e) {
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return null;
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}
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}
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}
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