/* ==================================================================
* PatternMatchingResourceBundleMessagesSource.java - 22/09/2016 1:46:47 PM
*
* Copyright 2007-2016 SolarNetwork.net Dev Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
* ==================================================================
*/
package net.solarnetwork.web.support;
import java.io.IOException;
import java.security.cert.Extension;
import java.util.Properties;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.core.io.support.ResourcePatternResolver;
/**
* {@link Extension of {@link ReloadableResourceBundleMessagesSource} that
* supports a pattern resolver for matching any number of resources.
*
* @author matt
* @version 1.0
*/
public class PatternMatchingResourceBundleMessagesSource extends ReloadableResourceBundleMessagesSource {
private final static String PROPERTIES_EXTENSION = ".properties";
private ResourcePatternResolver resourceResolver = null;
@Override
protected PropertiesHolder refreshProperties(String filename, PropertiesHolder propHolder) {
if ( resourceResolver != null ) {
return refreshMatchingProperties(filename, propHolder);
}
return super.refreshProperties(filename, propHolder);
}
@Override
public void setResourceLoader(ResourceLoader resourceLoader) {
super.setResourceLoader(resourceLoader);
if ( resourceResolver == null ) {
if ( resourceLoader instanceof ResourcePatternResolver ) {
resourceResolver = (ResourcePatternResolver) resourceLoader;
} else {
resourceResolver = new PathMatchingResourcePatternResolver(resourceLoader);
}
}
}
private PropertiesHolder refreshMatchingProperties(String filename, PropertiesHolder propHolder) {
Properties properties = new Properties();
long lastModified = -1;
String name = filename + PROPERTIES_EXTENSION;
try {
Resource[] resources = resourceResolver.getResources(name);
for ( Resource resource : resources ) {
String sourcePath = resource.getURI().toString();
if ( sourcePath.endsWith(PROPERTIES_EXTENSION) ) {
sourcePath = sourcePath.substring(0,
sourcePath.length() - PROPERTIES_EXTENSION.length());
}
PropertiesHolder holder = super.refreshProperties(sourcePath, propHolder);
properties.putAll(holder.getProperties());
if ( lastModified < resource.lastModified() )
lastModified = resource.lastModified();
}
} catch ( IOException e ) {
// ignore this
}
return new PropertiesHolder(properties, lastModified);
}
/**
* Set the resource resolver to use to.
*
* @param resourceResolver
* The resolver to use.
*/
public void setResourceResolver(ResourcePatternResolver resourceResolver) {
this.resourceResolver = resourceResolver;
}
}