io.logspace.agent.shaded.mchange.v2.c3p0.cfg.DefaultC3P0ConfigFinder Maven / Gradle / Ivy
/*
* Distributed as part of c3p0 v.0.9.1.1
*
* Copyright (C) 2005 Machinery For Change, Inc.
*
* Author: Steve Waldman
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1, as
* published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this software; see the file LICENSE. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package io.logspace.agent.shaded.mchange.v2.c3p0.cfg;
import java.io.*;
import java.util.HashMap;
import java.util.Properties;
import io.logspace.agent.shaded.mchange.v2.cfg.MultiPropertiesConfig;
public class DefaultC3P0ConfigFinder implements C3P0ConfigFinder
{
final static String XML_CFG_FILE_KEY = "io.logspace.agent.shaded.mchange.v2.c3p0.cfg.xml";
public C3P0Config findConfig() throws Exception
{
C3P0Config out;
HashMap flatDefaults = C3P0ConfigUtils.extractHardcodedC3P0Defaults();
// this includes System properties, but we have to check for System properties
// again, since we want system properties to override unspecified user, default-config
// properties in the XML
flatDefaults.putAll( C3P0ConfigUtils.extractC3P0PropertiesResources() );
String cfgFile = MultiPropertiesConfig.readVmConfig().getProperty( XML_CFG_FILE_KEY );
if (cfgFile == null)
{
C3P0Config xmlConfig = C3P0ConfigXmlUtils.extractXmlConfigFromDefaultResource();
if (xmlConfig != null)
{
insertDefaultsUnderNascentConfig( flatDefaults, xmlConfig );
out = xmlConfig;
}
else
out = C3P0ConfigUtils.configFromFlatDefaults( flatDefaults );
}
else
{
InputStream is = new BufferedInputStream( new FileInputStream( cfgFile ) );
try
{
C3P0Config xmlConfig = C3P0ConfigXmlUtils.extractXmlConfigFromInputStream( is );
insertDefaultsUnderNascentConfig( flatDefaults, xmlConfig );
out = xmlConfig;
}
finally
{
try {is.close();}
catch (Exception e)
{ e.printStackTrace(); }
}
}
// overwrite default, unspecified user config with System properties
// defined values
Properties sysPropConfig = C3P0ConfigUtils.findAllC3P0SystemProperties();
out.defaultConfig.props.putAll( sysPropConfig );
return out;
}
private void insertDefaultsUnderNascentConfig(HashMap flatDefaults, C3P0Config config)
{
flatDefaults.putAll( config.defaultConfig.props );
config.defaultConfig.props = flatDefaults;
}
}