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// Copyright (C) 2009 The Android Open Source Project
//
// 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.gerrit.server.schema;
import com.google.gerrit.reviewdb.CurrentSchemaVersion;
import com.google.gerrit.reviewdb.ReviewDb;
import com.google.gerrit.reviewdb.SystemConfig;
import com.google.gerrit.server.config.SitePaths;
import com.google.gwtorm.client.OrmException;
import com.google.gwtorm.client.SchemaFactory;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Collections;
/** Creates or updates the current database schema. */
public class SchemaUpdater {
private final SchemaFactory<ReviewDb> schema;
private final SitePaths site;
private final SchemaCreator creator;
private final Provider<SchemaVersion> updater;
@Inject
SchemaUpdater(final SchemaFactory<ReviewDb> schema, final SitePaths site,
final SchemaCreator creator, @Current final Provider<SchemaVersion> update) {
this.schema = schema;
this.site = site;
this.creator = creator;
this.updater = update;
}
public void update(final UpdateUI ui) throws OrmException {
final ReviewDb db = schema.open();
try {
final SchemaVersion u = updater.get();
final CurrentSchemaVersion version = getSchemaVersion(db);
if (version == null) {
creator.create(db);
} else {
try {
u.check(ui, version, db, true);
} catch (SQLException e) {
throw new OrmException("Cannot upgrade schema", e);
}
updateSystemConfig(db);
}
} finally {
db.close();
}
}
private CurrentSchemaVersion getSchemaVersion(final ReviewDb db) {
try {
return db.schemaVersion().get(new CurrentSchemaVersion.Key());
} catch (OrmException e) {
return null;
}
}
private void updateSystemConfig(final ReviewDb db) throws OrmException {
final SystemConfig sc = db.systemConfig().get(new SystemConfig.Key());
if (sc == null) {
throw new OrmException("No record in system_config table");
}
try {
sc.sitePath = site.site_path.getCanonicalPath();
} catch (IOException e) {
sc.sitePath = site.site_path.getAbsolutePath();
}
db.systemConfig().update(Collections.singleton(sc));
}
}
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