| /* |
| * Copyright (c) 2011, Rickard Öberg. All Rights Reserved. |
| * Copyright (c) 2012, Paul Merlin. All Rights Reserved. |
| * |
| * 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 org.apache.zest.library.sql.liquibase; |
| |
| import java.net.ConnectException; |
| import java.sql.Connection; |
| import java.sql.SQLException; |
| import javax.sql.DataSource; |
| import liquibase.Liquibase; |
| import liquibase.database.DatabaseConnection; |
| import liquibase.database.jvm.JdbcConnection; |
| import liquibase.resource.ClassLoaderResourceAccessor; |
| import org.apache.zest.api.activation.ActivatorAdapter; |
| import org.apache.zest.api.activation.Activators; |
| import org.apache.zest.api.configuration.Configuration; |
| import org.apache.zest.api.injection.scope.Service; |
| import org.apache.zest.api.injection.scope.This; |
| import org.apache.zest.api.mixin.Mixins; |
| import org.apache.zest.api.service.ServiceComposite; |
| import org.apache.zest.api.service.ServiceImporterException; |
| import org.apache.zest.api.service.ServiceReference; |
| import org.apache.zest.library.sql.common.SQLUtil; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Wrapper service for Liquibase. |
| */ |
| @Mixins( LiquibaseService.Mixin.class ) |
| @Activators( LiquibaseService.Activator.class ) |
| public interface LiquibaseService |
| extends ServiceComposite |
| { |
| |
| void activateLiquibase() |
| throws Exception; |
| |
| public static class Activator |
| extends ActivatorAdapter<ServiceReference<LiquibaseService>> |
| { |
| |
| @Override |
| public void afterActivation( ServiceReference<LiquibaseService> activated ) |
| throws Exception |
| { |
| activated.get().activateLiquibase(); |
| } |
| |
| } |
| |
| public static abstract class Mixin |
| implements LiquibaseService |
| { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger( "org.qi4j.library.sql" ); |
| |
| @This |
| Configuration<LiquibaseConfiguration> config; |
| |
| @Service |
| ServiceReference<DataSource> dataSource; |
| |
| @Override |
| public void activateLiquibase() |
| throws Exception |
| { |
| config.refresh(); |
| boolean enabled = config.get().enabled().get(); |
| if ( !enabled ) { |
| return; |
| } |
| |
| Connection connection = null; |
| try { |
| |
| connection = dataSource.get().getConnection(); |
| DatabaseConnection dc = new JdbcConnection( connection ); |
| Liquibase liquibase = new Liquibase( config.get().changeLog().get(), new ClassLoaderResourceAccessor(), dc ); |
| liquibase.update( config.get().contexts().get() ); |
| |
| } catch ( SQLException e ) { |
| |
| Throwable ex = e; |
| while ( ex.getCause() != null ) { |
| ex = ex.getCause(); |
| } |
| |
| if ( ex instanceof ConnectException ) { |
| LOGGER.warn( "Could not connect to database; Liquibase should be disabled" ); |
| return; |
| } |
| |
| LOGGER.error( "Liquibase could not perform database migration", e ); |
| |
| } catch ( ServiceImporterException ex ) { |
| |
| LOGGER.warn( "DataSource is not available - database refactoring skipped" ); |
| |
| } finally { |
| |
| SQLUtil.rollbackQuietly( connection ); |
| SQLUtil.closeQuietly( connection ); |
| |
| } |
| } |
| |
| } |
| |
| } |