| // 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.testutil; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import com.google.gerrit.reviewdb.client.CurrentSchemaVersion; |
| import com.google.gerrit.reviewdb.client.SystemConfig; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gerrit.server.schema.SchemaCreator; |
| import com.google.gerrit.server.schema.SchemaVersion; |
| import com.google.gwtorm.jdbc.Database; |
| import com.google.gwtorm.jdbc.SimpleDataSource; |
| import com.google.gwtorm.server.OrmException; |
| import com.google.gwtorm.server.SchemaFactory; |
| import com.google.inject.Guice; |
| import com.google.inject.Inject; |
| |
| import org.eclipse.jgit.errors.ConfigInvalidException; |
| |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.SQLException; |
| import java.util.Properties; |
| |
| import javax.sql.DataSource; |
| |
| /** |
| * An in-memory test instance of {@link ReviewDb} database. |
| * <p> |
| * Test classes should create one instance of this class for each unique test |
| * database they want to use. When the tests needing this instance are complete, |
| * ensure that {@link #drop(InMemoryDatabase)} is called to free the resources so |
| * the JVM running the unit tests doesn't run out of heap space. |
| */ |
| public class InMemoryDatabase implements SchemaFactory<ReviewDb> { |
| public static InMemoryDatabase newDatabase() { |
| return Guice.createInjector(new InMemoryModule()) |
| .getInstance(InMemoryDatabase.class); |
| } |
| |
| private static int dbCnt; |
| |
| private static synchronized DataSource newDataSource() throws SQLException { |
| final Properties p = new Properties(); |
| p.setProperty("driver", org.h2.Driver.class.getName()); |
| p.setProperty("url", "jdbc:h2:mem:" + "Test_" + (++dbCnt)); |
| return new SimpleDataSource(p); |
| } |
| |
| /** Drop the database from memory; does nothing if the instance was null. */ |
| public static void drop(final InMemoryDatabase db) { |
| if (db != null) { |
| db.drop(); |
| } |
| } |
| |
| private final SchemaVersion schemaVersion; |
| private final SchemaCreator schemaCreator; |
| |
| private Connection openHandle; |
| private Database<ReviewDb> database; |
| private boolean created; |
| |
| @Inject |
| InMemoryDatabase(SchemaVersion schemaVersion, |
| SchemaCreator schemaCreator) throws OrmException { |
| this.schemaVersion = schemaVersion; |
| this.schemaCreator = schemaCreator; |
| |
| try { |
| DataSource dataSource = newDataSource(); |
| |
| // Open one connection. This will peg the database into memory |
| // until someone calls drop on us, allowing subsequent connections |
| // opened against the same URL to go to the same set of tables. |
| // |
| openHandle = dataSource.getConnection(); |
| |
| // Build the access layer around the connection factory. |
| // |
| database = new Database<ReviewDb>(dataSource, ReviewDb.class); |
| |
| } catch (SQLException e) { |
| throw new OrmException(e); |
| } |
| } |
| |
| public Database<ReviewDb> getDatabase() { |
| return database; |
| } |
| |
| @Override |
| public ReviewDb open() throws OrmException { |
| return getDatabase().open(); |
| } |
| |
| /** Ensure the database schema has been created and initialized. */ |
| public InMemoryDatabase create() throws OrmException { |
| if (!created) { |
| created = true; |
| final ReviewDb c = open(); |
| try { |
| try { |
| schemaCreator.create(c); |
| } catch (IOException e) { |
| throw new OrmException("Cannot create in-memory database", e); |
| } catch (ConfigInvalidException e) { |
| throw new OrmException("Cannot create in-memory database", e); |
| } |
| } finally { |
| c.close(); |
| } |
| } |
| return this; |
| } |
| |
| /** Drop this database from memory so it no longer exists. */ |
| public void drop() { |
| if (openHandle != null) { |
| try { |
| openHandle.close(); |
| } catch (SQLException e) { |
| System.err.println("WARNING: Cannot close database connection"); |
| e.printStackTrace(System.err); |
| } |
| openHandle = null; |
| database = null; |
| } |
| } |
| |
| public SystemConfig getSystemConfig() throws OrmException { |
| final ReviewDb c = open(); |
| try { |
| return c.systemConfig().get(new SystemConfig.Key()); |
| } finally { |
| c.close(); |
| } |
| } |
| |
| public CurrentSchemaVersion getSchemaVersion() throws OrmException { |
| final ReviewDb c = open(); |
| try { |
| return c.schemaVersion().get(new CurrentSchemaVersion.Key()); |
| } finally { |
| c.close(); |
| } |
| } |
| |
| public void assertSchemaVersion() throws OrmException { |
| final CurrentSchemaVersion act = getSchemaVersion(); |
| assertEquals(schemaVersion.getVersionNbr(), act.versionNbr); |
| } |
| } |