/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.oodt.cas.workflow.instrepo;
//OODT imports
import org.apache.oodt.cas.metadata.util.PathUtils;
import org.apache.oodt.cas.workflow.instrepo.WorkflowInstanceRepository;
import org.apache.oodt.cas.workflow.instrepo.WorkflowInstanceRepositoryFactory;
//APACHE imports
import org.apache.commons.dbcp.ConnectionFactory;
import org.apache.commons.dbcp.DriverManagerConnectionFactory;
import org.apache.commons.dbcp.PoolableConnectionFactory;
import org.apache.commons.dbcp.PoolingDataSource;
import org.apache.commons.pool.impl.GenericObjectPool;
//JDK imports
import javax.sql.DataSource;
/**
* @author mattmann
* @version $Revision$
*
* <p>
* A factory for creating {@link DataSource} based
* {@link WorkflowInstanceRepository}s.
* </p>
*
*/
public class DataSourceWorkflowInstanceRepositoryFactory implements
WorkflowInstanceRepositoryFactory {
/* our data source */
private DataSource dataSource = null;
/* whether or not we are quoting the task_id and workflow_id fields */
private boolean quoteFields = false;
/* the number of workflow instances returned per page when paginating */
private int pageSize = -1;
/**
* <p>
* Default constructor
* </p>
*/
public DataSourceWorkflowInstanceRepositoryFactory() throws Exception {
String jdbcUrl = null, user = null, pass = null, driver = null;
jdbcUrl = PathUtils
.replaceEnvVariables(System
.getProperty("org.apache.oodt.cas.workflow.instanceRep.datasource.jdbc.url"));
user = PathUtils
.replaceEnvVariables(System
.getProperty("org.apache.oodt.cas.workflow.instanceRep.datasource.jdbc.user"));
pass = PathUtils
.replaceEnvVariables(System
.getProperty("org.apache.oodt.cas.workflow.instanceRep.datasource.jdbc.pass"));
driver = PathUtils
.replaceEnvVariables(System
.getProperty("org.apache.oodt.cas.workflow.instanceRep.datasource.jdbc.driver"));
try {
Class.forName(driver);
} catch (ClassNotFoundException e) {
throw new Exception("Cannot load driver: " + driver);
}
GenericObjectPool connectionPool = new GenericObjectPool(null);
ConnectionFactory connectionFactory = new DriverManagerConnectionFactory(
jdbcUrl, user, pass);
PoolableConnectionFactory poolableConnectionFactory = new PoolableConnectionFactory(
connectionFactory, connectionPool, null, null, false, true);
dataSource = new PoolingDataSource(connectionPool);
quoteFields = Boolean
.getBoolean("org.apache.oodt.cas.workflow.instanceRep.datasource.quoteFields");
pageSize = Integer.getInteger(
"org.apache.oodt.cas.workflow.instanceRep.pageSize", 20)
.intValue();
}
/*
* (non-Javadoc)
*
* @see org.apache.oodt.cas.workflow.instrepo.WorkflowInstanceRepositoryFactory#createInstanceRepository()
*/
public WorkflowInstanceRepository createInstanceRepository() {
return new DataSourceWorkflowInstanceRepository(dataSource,
quoteFields, pageSize);
}
}