com.qpark.eip.core.model.analysis.config.EipModelAnalysisPersistenceConfig.java Source code

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Here is the source code for com.qpark.eip.core.model.analysis.config.EipModelAnalysisPersistenceConfig.java

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/*******************************************************************************
 * Copyright (c) 2013, 2014, 2015, 2016 QPark Consulting S.a r.l. This program and the
 * accompanying materials are made available under the terms of the Eclipse
 * Public License v1.0. The Eclipse Public License is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 ******************************************************************************/
package com.qpark.eip.core.model.analysis.config;

import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.orm.jpa.vendor.AbstractJpaVendorAdapter;
import org.springframework.orm.jpa.vendor.Database;
import org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter;
import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
import org.springframework.orm.jpa.vendor.OpenJpaVendorAdapter;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.qpark.eip.core.EipJpaVendorAdapterConfiguration;
import com.qpark.eip.core.model.analysis.AnalysisDao;

/**
 * Provides the spring config of the persistence unit
 * {@value #PERSISTENCE_UNIT_NAME}. The {@link DataSource} to use has the bean
 * name {@value #DATASOURCE_BEAN_NAME}. The
 * {@link EipJpaVendorAdapterConfiguration} to use has the bean name
 * {@value #JPA_VENDOR_ADAPTER_CONFIGURATION_BEAN_NAME}.
 *
 * @author bhausen
 */
@Configuration
@EnableTransactionManagement
public class EipModelAnalysisPersistenceConfig {
    /** The name of the {@link DataSource} bean name. */
    public static final String DATASOURCE_BEAN_NAME = "ComQparkEipModelAnalysisDataSourceJndi";
    /** The name of the persistence unit. */
    public static final String PERSISTENCE_UNIT_NAME = "com.qpark.eip.model.docmodel";
    /** The name of the entity manager factory. */
    public static final String ENTITY_MANAGER_FACTORY_NAME = "ComQparkEipModelAnalysisEntityManagerFactory";
    /** The name of the transaction manager. */
    public static final String TRANSACTION_MANAGER_NAME = "ComQparkEipModelAnalysisTransactionManager";
    /** The name of the {@link EipJpaVendorAdapterConfiguration} bean name. */
    public static final String JPA_VENDOR_ADAPTER_CONFIGURATION_BEAN_NAME = "ComQparkEipModelAnalysisEipPersistenceJpaVendorAdapterConfiguration";

    /** The {@link EipJpaVendorAdapterConfiguration} to use. */
    @Autowired
    @Qualifier(JPA_VENDOR_ADAPTER_CONFIGURATION_BEAN_NAME)
    private EipJpaVendorAdapterConfiguration jpaVendorAdapterConfiguration;

    /** The {@link DataSource} to use. */
    @Autowired
    @Qualifier(DATASOURCE_BEAN_NAME)
    private DataSource dataSource;

    /** Create the spring config of {@value #PERSISTENCE_UNIT_NAME}. */
    public EipModelAnalysisPersistenceConfig() {
    }

    /**
     * @return the {@link AnalysisDao}.
     */
    @Bean
    public AnalysisDao getAnalysisDao() {
        return new AnalysisDao();
    }

    /**
     * Get the {@link LocalContainerEntityManagerFactoryBean}.
     *
     * @return the {@link LocalContainerEntityManagerFactoryBean}.
     */
    @Bean(name = ENTITY_MANAGER_FACTORY_NAME)
    public EntityManagerFactory getEntityManagerFactory() {
        AbstractJpaVendorAdapter jpaVendorAdapter = this.getJpaVendorAdapter();
        if (jpaVendorAdapter == null) {
            throw new RuntimeException(String.format("%s jpaVendorAdpater not set properly %s.",
                    ENTITY_MANAGER_FACTORY_NAME, String.valueOf(jpaVendorAdapter)));
        }
        String jpaVendorAdapterDatabasePlatform = this.jpaVendorAdapterConfiguration
                .getJpaVendorAdpaterDatabasePlatform();
        if (jpaVendorAdapterDatabasePlatform == null || jpaVendorAdapterDatabasePlatform.trim().length() == 0) {
            throw new RuntimeException(String.format("%s jpaVendorAdpaterDatabasePlatform not set properly %s.",
                    ENTITY_MANAGER_FACTORY_NAME, String.valueOf(jpaVendorAdapterDatabasePlatform)));
        }

        LocalContainerEntityManagerFactoryBean bean = new LocalContainerEntityManagerFactoryBean();
        bean.setPersistenceXmlLocation(
                String.format("classpath:/META-INF/%s/persistence.xml", PERSISTENCE_UNIT_NAME));
        bean.setPersistenceUnitName(PERSISTENCE_UNIT_NAME);
        bean.setDataSource(this.dataSource);

        jpaVendorAdapter.setDatabasePlatform(jpaVendorAdapterDatabasePlatform);
        jpaVendorAdapter.setShowSql(false);
        if (this.isJpaVendorAdapterGenerateDdl()) {
            jpaVendorAdapter.setGenerateDdl(true);
            if (HibernateJpaVendorAdapter.class.isInstance(jpaVendorAdapter)) {
                bean.getJpaPropertyMap().put("hibernate.hbm2ddl.auto", "update");
            }
        } else {
            jpaVendorAdapter.setGenerateDdl(false);
        }

        bean.setJpaVendorAdapter(jpaVendorAdapter);
        bean.afterPropertiesSet();
        return bean.getObject();
    }

    /**
     * Get the {@link JpaTransactionManager}.
     *
     * @return the {@link JpaTransactionManager}.
     */
    @Bean(name = TRANSACTION_MANAGER_NAME)
    public JpaTransactionManager getJpaTransactionManager() {
        JpaTransactionManager bean = new JpaTransactionManager();
        EntityManagerFactory emf = this.getEntityManagerFactory();
        bean.setPersistenceUnitName(PERSISTENCE_UNIT_NAME);
        bean.setEntityManagerFactory(emf);
        return bean;
    }

    /**
     * Get the {@link AbstractJpaVendorAdapter} out of the property
     * {@link #jpaVendorAdapterClassName}.
     *
     * @return the {@link AbstractJpaVendorAdapter} .
     */
    private AbstractJpaVendorAdapter getJpaVendorAdapter() {
        AbstractJpaVendorAdapter jpaVendorAdapter = null;
        String jpaVendorAdapterClassName = this.jpaVendorAdapterConfiguration.getJpaVendorAdapterClassName();
        if (jpaVendorAdapterClassName == null
                || jpaVendorAdapterClassName.equals("org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter")
                || jpaVendorAdapterClassName.equalsIgnoreCase("Hibernate")) {
            jpaVendorAdapter = new HibernateJpaVendorAdapter();
        } else if (jpaVendorAdapterClassName
                .equals("org.springframework.orm.jpa.vendor.EclipseLinkJpaVendorAdapter")
                || jpaVendorAdapterClassName.equalsIgnoreCase("EclipseLink")) {
            jpaVendorAdapter = new EclipseLinkJpaVendorAdapter();
        } else if (jpaVendorAdapterClassName.equals("org.springframework.orm.jpa.vendor.OpenJpaVendorAdapter")
                || jpaVendorAdapterClassName.equalsIgnoreCase("OpenJpa")) {
            jpaVendorAdapter = new OpenJpaVendorAdapter();
        }
        return jpaVendorAdapter;
    }

    /**
     * Get the generateDdl parameter to be set into the
     * {@link AbstractJpaVendorAdapter}.
     *
     * @return the generateDdl parameter to be set into the
     *         {@link AbstractJpaVendorAdapter}.
     */
    private boolean isJpaVendorAdapterGenerateDdl() {
        Boolean value = this.jpaVendorAdapterConfiguration.getJpaVendorAdapterGenerateDdl();
        if (value == null) {
            if (this.jpaVendorAdapterConfiguration.getJpaVendorAdpaterDatabasePlatform()
                    .equals("org.hibernate.dialect.HSQLDialect")
                    || this.jpaVendorAdapterConfiguration.getJpaVendorAdpaterDatabasePlatform()
                            .equals(Database.HSQL.name())) {
                value = Boolean.TRUE;
            } else {
                value = Boolean.FALSE;
            }
        }
        return value.booleanValue();
    }
}