/**
* Copyright (c) 2008-2011 Sonatype, Inc.
* All rights reserved. Includes the third-party code listed at http://www.sonatype.com/products/nexus/attributions.
*
* This program is free software: you can redistribute it and/or modify it only under the terms of the GNU Affero General
* Public License Version 3 as published by the Free Software Foundation.
*
* 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 Affero General Public License Version 3
* for more details.
*
* You should have received a copy of the GNU Affero General Public License Version 3 along with this program. If not, see
* http://www.gnu.org/licenses.
*
* Sonatype Nexus (TM) Open Source Version is available from Sonatype, Inc. Sonatype and Sonatype Nexus are trademarks of
* Sonatype, Inc. Apache Maven is a trademark of the Apache Foundation. M2Eclipse is a trademark of the Eclipse Foundation.
* All other trademarks are the property of their respective owners.
*/
package org.sonatype.nexus.plugins.lvo.strategy;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.util.IOUtil;
import org.sonatype.nexus.plugins.lvo.DiscoveryRequest;
import org.sonatype.nexus.plugins.lvo.DiscoveryResponse;
import org.sonatype.nexus.plugins.lvo.DiscoveryStrategy;
import org.sonatype.nexus.proxy.NoSuchRepositoryException;
import org.sonatype.nexus.proxy.item.StorageFileItem;
/**
* This is a "local" strategy, uses Nexus content to get a Java properties file and get filtered keys from there.
*
* @author cstamas
*/
@Component( role = DiscoveryStrategy.class, hint = "content-get-properties" )
public class ContentGetPropertiesDiscoveryStrategy
extends ContentGetDiscoveryStrategy
{
public DiscoveryResponse discoverLatestVersion( DiscoveryRequest request )
throws NoSuchRepositoryException,
IOException
{
DiscoveryResponse dr = new DiscoveryResponse( request );
// handle
StorageFileItem response = handleRequest( request );
if ( response != null )
{
Properties properties = new Properties();
InputStream content = response.getInputStream();
try
{
properties.load( content );
}
finally
{
IOUtil.close( content );
}
String keyPrefix = request.getKey() + ".";
// repack it into response
for ( Object key : properties.keySet() )
{
String keyString = key.toString();
if ( keyString.startsWith( keyPrefix ) )
{
dr.getResponse().put( key.toString().substring( keyPrefix.length() ), properties.get( key ) );
dr.setSuccessful( true );
}
}
}
return dr;
}
}