ProcessEngineConfiguration.java

package com.joshlong.activiti.coordinator.registration1;

import org.activiti.spring.ProcessEngineFactoryBean;
import org.activiti.spring.SpringProcessEngineConfiguration;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.jdbc.datasource.SimpleDriverDataSource;
import org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy;

import org.springframework.transaction.PlatformTransactionManager;

import javax.sql.DataSource;


/**
 * @author Josh Long
 * @since 1.0
 */
@Configuration
public class ProcessEngineConfiguration {
    protected Resource[] processResources() {
        return new Resource[] { new ClassPathResource("processes/registration.bpmn20.xml") };
    }

    protected String databaseUrl() {
        return "jdbc:h2:tcp://localhost/~/activiti_example4";
    }

    @Bean
    public DataSource activitiDataSource() {
        return new SimpleDriverDataSource(new org.h2.Driver(), databaseUrl(), "sa", "");
    }

    @Bean
    public DataSource dataSource() {
        return new TransactionAwareDataSourceProxy(activitiDataSource());
    }

    @Bean
    public PlatformTransactionManager platformTransactionManager() {
        return new DataSourceTransactionManager(this.dataSource());
    }

    @Bean
    public ProcessEngineFactoryBean processEngineFactoryBean() {
        ProcessEngineFactoryBean pe = new ProcessEngineFactoryBean();
        SpringProcessEngineConfiguration processEngineConfiguration = new SpringProcessEngineConfiguration();

        processEngineConfiguration.setDataSource(this.dataSource());
        processEngineConfiguration.setTransactionManager(this.platformTransactionManager());
        processEngineConfiguration.setDatabaseSchemaUpdate(SpringProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);

        Resource[] resources = processResources();
        processEngineConfiguration.setDeploymentResources(resources);
        pe.setProcessEngineConfiguration(processEngineConfiguration);
        return pe;
    }
}