/*************************************************************************
* 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.objectstorage.policy;
import javax.annotation.Nullable;
/**
*
*/
public class ObjectStoragePolicyContext {
private final static ThreadLocal<ObjectStoragePolicyContextResource> resourceLocal = new ThreadLocal<>();
static void clearContext( ) {
resourceLocal.set( null );
}
static void setObjectStoragePolicyContextResource( @Nullable final ObjectStoragePolicyContextResource resource ) {
resourceLocal.set( resource );
}
static String getVersionId( ) {
final ObjectStoragePolicyContextResource resource = resourceLocal.get( );
return resource == null ? null : resource.getVersionId( );
}
public interface ObjectStoragePolicyContextResource {
@Nullable
String getVersionId( );
}
public static class ObjectStoragePolicyContextResourceSupport implements ObjectStoragePolicyContextResource {
@Nullable
@Override
public String getVersionId( ) {
return null;
}
}
}