/*************************************************************************
* Copyright 2009-2015 Eucalyptus Systems, Inc.
*
* 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; version 3 of the License.
*
* 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, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
************************************************************************/
package com.eucalyptus.auth.policy.variable;
import java.lang.reflect.Modifier;
import org.apache.log4j.Logger;
import com.eucalyptus.bootstrap.ServiceJarDiscovery;
/**
*
*/
public class PolicyVariableDiscovery extends ServiceJarDiscovery {
private static Logger logger = Logger.getLogger( PolicyVariableDiscovery.class );
@Override
public boolean processClass( Class candidate ) throws Exception {
if ( PolicyVariable.class.isAssignableFrom( candidate ) &&
!Modifier.isAbstract( candidate.getModifiers( ) ) &&
Modifier.isPublic( candidate.getModifiers( ) ) ) {
try {
final PolicyVariable policyVariable = (PolicyVariable) candidate.newInstance( );
logger.debug( "Registering policy variable " + policyVariable.getQName( ) + " for " + candidate.getCanonicalName( ) );
if ( !PolicyVariables.registerPolicyVariable( policyVariable ) ) {
logger.error( "Registration conflict for policy variable " + candidate.getCanonicalName( ) );
}
return true;
} catch ( final ReflectiveOperationException e ) {
logger.error( "Error creating instance for policy variable " + candidate.getCanonicalName( ), e );
}
}
return false;
}
@Override
public Double getPriority( ) {
return 1.0d;
}
}