/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.gateway.audit.api;
import org.apache.hadoop.gateway.audit.log4j.audit.Log4jAuditService;
public abstract class AuditServiceFactory {
// The global audit service instance.
private static AuditService auditService = null;
// To prevent instantiation.
private AuditServiceFactory() {
}
/**
* Provides access to the default audit service implementation.
* @return The default audit service implementation. Will not be null.
*/
public static AuditService getAuditService() {
// Race condition acceptable and will only result in multiple service instantiations.
if( auditService == null ) {
auditService = new Log4jAuditService();
}
return auditService;
}
}