| // Copyright (C) 2018 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.extensions.events.LifecycleListener; |
| import com.google.gerrit.lifecycle.LifecycleModule; |
| import com.google.gerrit.server.config.SitePaths; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.inject.Inject; |
| import com.google.inject.Module; |
| import com.google.inject.ProvisionException; |
| |
| public class NoteDbSchemaVersionCheck implements LifecycleListener { |
| public static Module module() { |
| return new LifecycleModule() { |
| @Override |
| protected void configure() { |
| listener().to(NoteDbSchemaVersionCheck.class); |
| } |
| }; |
| } |
| |
| private final NoteDbSchemaVersionManager versionManager; |
| private final SitePaths sitePaths; |
| |
| @Inject |
| NoteDbSchemaVersionCheck(NoteDbSchemaVersionManager versionManager, SitePaths sitePaths) { |
| this.versionManager = versionManager; |
| this.sitePaths = sitePaths; |
| } |
| |
| @Override |
| public void start() { |
| try { |
| int current = versionManager.read(); |
| if (current == 0) { |
| throw new ProvisionException( |
| String.format( |
| "Schema not yet initialized. Run init to initialize the schema:\n" |
| + "$ java -jar gerrit.war init -d %s", |
| sitePaths.site_path.toAbsolutePath())); |
| } |
| int expected = NoteDbSchemaVersions.LATEST; |
| if (current != expected) { |
| String advice = |
| current > expected |
| ? "Downgrade is not supported" |
| : String.format( |
| "Run init to upgrade:\n$ java -jar %s init -d %s", |
| sitePaths.gerrit_war.toAbsolutePath(), sitePaths.site_path.toAbsolutePath()); |
| throw new ProvisionException( |
| String.format( |
| "Unsupported schema version %d; expected schema version %d. %s", |
| current, expected, advice)); |
| } |
| } catch (OrmException e) { |
| throw new ProvisionException("Failed to read NoteDb schema version", e); |
| } |
| } |
| |
| @Override |
| public void stop() { |
| // Do nothing. |
| } |
| } |