com.mchange.v2.cfg.CombinedMultiPropertiesConfig Maven / Gradle / Ivy
/*
* Distributed as part of mchange-commons-java v.0.2.3
*
* Copyright (C) 2012 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 com.mchange.v2.cfg;
import java.util.*;
class CombinedMultiPropertiesConfig extends MultiPropertiesConfig
{
MultiPropertiesConfig[] configs;
String[] resourcePaths;
CombinedMultiPropertiesConfig( MultiPropertiesConfig[] configs )
{
this.configs = configs;
List allPaths = new LinkedList();
for (int i = configs.length - 1; i >= 0; --i)
{
String[] rps = configs[i].getPropertiesResourcePaths();
for (int j = rps.length - 1; j >= 0; --j)
{
String rp = rps[j];
if (! allPaths.contains( rp ) )
allPaths.add(0, rp);
}
}
this.resourcePaths = (String[]) allPaths.toArray( new String[ allPaths.size() ] );
}
public String[] getPropertiesResourcePaths()
{ return (String[]) resourcePaths.clone(); }
public Properties getPropertiesByResourcePath(String path)
{
for (int i = configs.length - 1; i >= 0; --i)
{
MultiPropertiesConfig config = configs[i];
Properties check = config.getPropertiesByResourcePath(path);
if (check != null)
return check;
}
return null;
}
public Properties getPropertiesByPrefix(String pfx)
{
List entries = new LinkedList();
for (int i = configs.length - 1; i >= 0; --i)
{
MultiPropertiesConfig config = configs[i];
Properties check = config.getPropertiesByPrefix(pfx);
if (check != null)
entries.addAll( 0, check.entrySet() );
}
if (entries.size() == 0)
return null;
else
{
Properties out = new Properties();
for (Iterator ii = entries.iterator(); ii.hasNext(); )
{
Map.Entry entry = (Map.Entry) ii.next();
out.put( entry.getKey(), entry.getValue() );
}
return out;
}
}
public String getProperty( String key )
{
for (int i = configs.length - 1; i >= 0; --i)
{
MultiPropertiesConfig config = configs[i];
String check = config.getProperty(key);
if (check != null)
return check;
}
return null;
}
}