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/*
 * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
 *
 * 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 io.cloudslang.schema.context;

import io.cloudslang.engine.data.SimpleHiloIdentifierGenerator;
import org.hibernate.jpa.HibernatePersistenceProvider;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.DependsOn;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.JpaVendorAdapter;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.support.TransactionTemplate;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import java.util.Properties;

/**
 * User:
 * Date: 01/07/2014
 *
 * This context is used for the case when score does not receive any outside beans related
 * to the database. In which case score itself will create the datasource (H2) and the schema and
 * anything else related to hibernate, bean management and transaction management
 */
public class ScoreDatabaseContext {

    @Bean
    Properties jpaProperties() {
        Properties props = new Properties();
        props.setProperty("hibernate.format_sql", Boolean.TRUE.toString());
        props.setProperty("hibernate.hbm2ddl.auto", System.getProperty("hibernate.hbm2ddl.auto", "validate"));
        props.setProperty("hibernate.cache.use_query_cache", Boolean.FALSE.toString());
        props.setProperty("hibernate.generate_statistics", Boolean.FALSE.toString());
        props.setProperty("hibernate.cache.use_second_level_cache", Boolean.FALSE.toString());
        props.setProperty("hibernate.order_updates", Boolean.TRUE.toString());
        props.setProperty("hibernate.order_inserts", Boolean.TRUE.toString());
        props.setProperty("hibernate.dialect_resolvers", "io.cloudslang.engine.dialects.ScoreDialectResolver");
        return props;
    }

    @Bean
    JpaVendorAdapter jpaVendorAdapter() {
        return new HibernateJpaVendorAdapter();
    }

    @Bean
    @DependsOn("liquibase")
    LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource) {
        //Init the IdentityManager
        SimpleHiloIdentifierGenerator.setDataSource(dataSource);

        //Now create the bean
        LocalContainerEntityManagerFactoryBean emf = new LocalContainerEntityManagerFactoryBean();
        emf.setDataSource(dataSource);
        emf.setJpaProperties(jpaProperties());
        emf.setJpaVendorAdapter(jpaVendorAdapter());
        emf.setPersistenceProviderClass(HibernatePersistenceProvider.class);
        emf.setPackagesToScan("io.cloudslang");
        return emf;
    }

    @Bean
    JpaTransactionManager transactionManager(EntityManagerFactory entityManagerFactory) {
        JpaTransactionManager jpaTransactionManager = new JpaTransactionManager();
        jpaTransactionManager.setEntityManagerFactory(entityManagerFactory);
        return jpaTransactionManager;
    }

    @Bean
    JdbcTemplate jdbcTemplate(DataSource dataSource) {
        JdbcTemplate jdbcTemplate = new JdbcTemplate();
        jdbcTemplate.setDataSource(dataSource);
        return jdbcTemplate;
    }

    @Bean
    TransactionTemplate transactionTemplate(PlatformTransactionManager transactionManager) {
        TransactionTemplate transactionTemplate = new TransactionTemplate();
        transactionTemplate.setTransactionManager(transactionManager);
        return transactionTemplate;
    }
}




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