/* ========================================================================
* JCommon : a free general purpose class library for the Java(tm) platform
* ========================================================================
*
* (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jcommon/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------------------------------
* PropertyFileReportConfiguration.java
* ------------------------------------
* (C)opyright 2003, by Thomas Morgner and Contributors.
*
* Original Author: Thomas Morgner;
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* $Id: PropertyFileConfiguration.java,v 1.10 2008/09/10 09:17:28 mungady Exp $
*
* Changes
* -------
* 14-Jan-2003 : Initial version
*/
package org.jfree.base.config;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.jfree.util.Log;
import org.jfree.util.ObjectUtilities;
/**
* A report configuration that reads its values from an arbitary property file.
*
* @author Thomas Morgner
*/
public class PropertyFileConfiguration extends HierarchicalConfiguration
{
/**
* Default constructor.
*/
public PropertyFileConfiguration() {
// nothing required
}
/**
* Load the properties in the given file.
*
* @param resourceName the file name.
*/
public void load(final String resourceName)
{
load(resourceName, PropertyFileConfiguration.class);
}
/**
* Loads the properties stored in the given file. This method does nothing if
* the file does not exist or is unreadable. Appends the contents of the loaded
* properties to the already stored contents.
*
* @param resourceName the file name of the stored properties.
* @param resourceSource ?
*/
public void load(final String resourceName, final Class resourceSource)
{
final InputStream in = ObjectUtilities.getResourceRelativeAsStream
(resourceName, resourceSource);
if (in != null)
{
try
{
load(in);
}
finally
{
try
{
in.close();
}
catch (IOException e)
{
// ignore
}
}
}
else
{
Log.debug ("Configuration file not found in the classpath: " + resourceName);
}
}
/**
* Loads the properties stored in the given file. This method does nothing if
* the file does not exist or is unreadable. Appends the contents of the loaded
* properties to the already stored contents.
*
* @param in the input stream used to read the properties.
*/
public void load(final InputStream in)
{
if (in == null)
{
throw new NullPointerException();
}
try
{
final BufferedInputStream bin = new BufferedInputStream(in);
final Properties p = new Properties();
p.load(bin);
this.getConfiguration().putAll(p);
bin.close();
}
catch (IOException ioe)
{
Log.warn("Unable to read configuration", ioe);
}
}
}