package io.github.jhipster.sample.config;
   
   /*-
    * #%L
    * Jhipster Sample Application
    * %%
    * Copyright (C) 2017 Osgiliath
    * %%
    * 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.
   * #L%
   */
  
  import io.github.jhipster.config.JHipsterConstants;
  import io.github.jhipster.config.liquibase.AsyncSpringLiquibase;
  
  import liquibase.integration.spring.SpringLiquibase;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Qualifier;
  import org.springframework.boot.autoconfigure.liquibase.LiquibaseProperties;
  import org.springframework.context.annotation.Bean;
  import org.springframework.context.annotation.Configuration;
  import org.springframework.context.annotation.Profile;
  import org.springframework.core.env.Environment;
  import org.springframework.core.task.TaskExecutor;
  import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
  import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
  import org.springframework.transaction.annotation.EnableTransactionManagement;
  
  import javax.sql.DataSource;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.sql.SQLException;
  import org.springframework.context.annotation.ComponentScan.Filter;
  import org.springframework.context.annotation.FilterType;
  
  @Configuration
  @EnableJpaRepositories("io.github.jhipster.sample.repository")
  @EnableJpaAuditing(auditorAwareRef = "springSecurityAuditorAware")
  @EnableTransactionManagement
  public class DatabaseConfiguration {
  
      private final Logger log = LoggerFactory.getLogger(DatabaseConfiguration.class);
  
      private final Environment env;
  
      public DatabaseConfiguration(Environment env) {
          this.env = env;
      }
  
      /**
       * Open the TCP port for the H2 database, so it is available remotely.
       *
       * @return the H2 database TCP server
       * @throws SQLException if the server failed to start
       */
      @Bean(initMethod = "start", destroyMethod = "stop")
      @Profile(JHipsterConstants.SPRING_PROFILE_DEVELOPMENT)
      public Object h2TCPServer() throws SQLException {
          try {
              // We don't want to include H2 when we are packaging for the "prod" profile and won't
              // actually need it, so we have to load / invoke things at runtime through reflection.
              ClassLoader loader = Thread.currentThread().getContextClassLoader();
              Class<?> serverClass = Class.forName("org.h2.tools.Server", true, loader);
              Method createServer = serverClass.getMethod("createTcpServer", String[].class);
              return createServer.invoke(null, new Object[] { new String[] { "-tcp", "-tcpAllowOthers" } });
  
          } catch (ClassNotFoundException | LinkageError  e) {
              throw new RuntimeException("Failed to load and initialize org.h2.tools.Server", e);
  
          } catch (SecurityException | NoSuchMethodException e) {
              throw new RuntimeException("Failed to get method org.h2.tools.Server.createTcpServer()", e);
  
          } catch (IllegalAccessException | IllegalArgumentException e) {
              throw new RuntimeException("Failed to invoke org.h2.tools.Server.createTcpServer()", e);
  
          } catch (InvocationTargetException e) {
              Throwable t = e.getTargetException();
              if (t instanceof SQLException) {
                  throw (SQLException) t;
              }
              throw new RuntimeException("Unchecked exception in org.h2.tools.Server.createTcpServer()", t);
          }
      }
  
      @Bean
      public SpringLiquibase liquibase(@Qualifier("taskExecutor") TaskExecutor taskExecutor,
              DataSource dataSource, LiquibaseProperties liquibaseProperties) {
  
         // Use liquibase.integration.spring.SpringLiquibase if you don't want Liquibase to start asynchronously
         SpringLiquibase liquibase = new AsyncSpringLiquibase(taskExecutor, env);
         liquibase.setDataSource(dataSource);
         liquibase.setChangeLog("classpath:config/liquibase/master.xml");
         liquibase.setContexts(liquibaseProperties.getContexts());
         liquibase.setDefaultSchema(liquibaseProperties.getDefaultSchema());
         liquibase.setDropFirst(liquibaseProperties.isDropFirst());
         if (env.acceptsProfiles(JHipsterConstants.SPRING_PROFILE_NO_LIQUIBASE)) {
             liquibase.setShouldRun(false);
         } else {
             liquibase.setShouldRun(liquibaseProperties.isEnabled());
             log.debug("Configuring Liquibase");
         }
         return liquibase;
     }
 }