/*
* 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.ode.il.dbutil;
import java.io.File;
import javax.sql.DataSource;
import javax.transaction.TransactionManager;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.dao.BpelDAOConnectionFactoryJDBC;
import org.apache.ode.il.config.OdeConfigProperties;
import org.apache.ode.utils.LoggingInterceptor;
/**
* Does the dirty work of setting up / obtaining a DataSource based on the configuration in the {@link OdeConfigProperties} object.
*
*/
public abstract class Database {
protected static final Log __log = LogFactory.getLog(Database.class);
protected static final Log __logSql = LogFactory.getLog("org.apache.ode.sql");
protected static final Messages __msgs = Messages.getMessages(Messages.class);
protected OdeConfigProperties _odeConfig;
protected boolean _started;
protected TransactionManager _txm;
protected DataSource _datasource;
protected File _workRoot;
public static Database create(OdeConfigProperties props) {
if (props == null)
throw new NullPointerException("Must provide a configuration.");
switch (props.getDbMode()) {
case EMBEDDED:
switch (props.getDbEmbeddedType()) {
case DERBY: return new DerbyEmbeddedDB(props);
case H2: return new H2EmbeddedDB(props);
}
case EXTERNAL: return new ExternalDB(props);
case INTERNAL: return new InternalDB(props);
default: throw new IllegalStateException();
}
}
public Database(OdeConfigProperties props) {
_odeConfig = props;
}
public void setWorkRoot(File workRoot) {
_workRoot = workRoot;
}
public void setTransactionManager(TransactionManager txm) {
_txm = txm;
}
public synchronized void start() throws DatabaseConfigException {
if (_started)
return;
_datasource = null;
initDataSource();
_started = true;
}
public synchronized void shutdown() {
if (!_started)
return;
_datasource = null;
_started = false;
}
public DataSource getDataSource() {
//return __logSql.isDebugEnabled() ? new LoggingDataSourceWrapper(_datasource, __logSql) : _datasource;
return __logSql.isDebugEnabled() ? LoggingInterceptor.createLoggingDS(_datasource, __logSql) : _datasource;
}
protected abstract void initDataSource() throws DatabaseConfigException;
public BpelDAOConnectionFactoryJDBC createDaoCF() throws DatabaseConfigException {
String pClassName = _odeConfig.getDAOConnectionFactory();
__log.info(__msgs.msgOdeUsingDAOImpl(pClassName));
BpelDAOConnectionFactoryJDBC cf;
try {
Class<?> clazz = this.getClass().getClassLoader().loadClass(pClassName);
cf = (BpelDAOConnectionFactoryJDBC) clazz.newInstance();
} catch (Exception ex) {
String errmsg = __msgs.msgDAOInstantiationFailed(pClassName);
__log.error(errmsg, ex);
throw new DatabaseConfigException(errmsg, ex);
}
cf.setDataSource(getDataSource());
cf.setTransactionManager(_txm);
cf.init(_odeConfig.getProperties());
return cf;
}
}