/*************************************************************************
* Copyright 2009-2013 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.autoscaling.common;
import static com.eucalyptus.autoscaling.common.AutoScalingMetadata.AutoScalingMetadataWithResourceName;
import java.util.Collection;
import com.eucalyptus.util.RestrictedTypes;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
/**
*
*/
public class AutoScalingMetadatas extends RestrictedTypes {
public static <T extends AutoScalingMetadataWithResourceName> Function<T, String> toArn( ) {
return new Function<T, String>( ) {
@Override
public String apply( T metadata ) {
return metadata == null ? null : metadata.getArn();
}
};
}
public static <T extends AutoScalingMetadataWithResourceName> Predicate<T> filterByArn( final Collection<String> requestedArns ) {
return filterByProperty( requestedArns, toArn() );
}
public static <T extends AutoScalingMetadataWithResourceName> Predicate<T> filterPrivilegesByIdOrArn( final Class<T> metadataClass,
final Collection<String> requestedItems ) {
final Collection<String> names = AutoScalingResourceName.simpleNames( requestedItems );
final Collection<String> arns = AutoScalingResourceName.arns( requestedItems );
return Predicates.and(
!arns.isEmpty() && !names.isEmpty() ?
Predicates.<T>or(
AutoScalingMetadatas.<T>filterById( names ),
AutoScalingMetadatas.<T>filterByArn( arns ) ) :
!arns.isEmpty() ?
AutoScalingMetadatas.<T>filterByArn( arns ) :
AutoScalingMetadatas.<T>filterById( names ),
RestrictedTypes.filteringFor( metadataClass ).byPrivileges( ).buildPredicate( ) );
}
}